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Yamada N, Inoue T, Kuki I, Yamamoto N, Fukuoka M, Nukui M, Okuno H, Ishikawa J, Amo K, Togawa M, Sakuma H, Okazaki S. Higher incidence of acute symptomatic seizures in probable antibody-negative pediatric autoimmune encephalitis than in major antibody-positive autoimmune encephalitis. Front Neurol 2024; 15:1418083. [PMID: 39099783 PMCID: PMC11294254 DOI: 10.3389/fneur.2024.1418083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Purpose To delineate the characteristics of probable antibody-negative pediatric autoimmune encephalitis (probable Ab-negative AE), we compared the clinical features of probable Ab-negative AE to those of major antibody-positive AE. Methods We retrospectively reviewed the clinical features of 18 patients with probable Ab-negative AE, 13 with anti-N-methyl-D-aspartate receptor encephalitis (NMDARE), and 13 with myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Clinical characteristics, neuroimaging findings, treatments, and outcomes were analyzed. Results The age of onset and length of hospital stay were significantly higher in the NMDARE group than in the other groups (p = 0.02 and p < 0.01). Regarding initial neurological symptoms, acute symptomatic seizures in the probable Ab-negative AE group (67%) were significantly more frequent than in the NMDARE (15%) and MOGAD (23%) groups (p < 0.01). Paraclinical evidence of neuroinflammation within 1 month of disease onset revealed that single-photon emission computed tomography (SPECT) detected abnormal alterations in 14/14 (100%), cerebrospinal fluid (CSF) analysis in 15/18 (83%), and magnetic resonance imaging (MRI) in 11/18 (61%) in patients with probable Ab-negative AE. In the probable Ab-negative AE group, seven patients (39%) developed autoimmune-associated epilepsy, whereas one patient (8%) had both NMDARE and MOGAD (not statistically significant, p = 0.07). Conclusion Patients with probable Ab-negative AE exhibited acute symptomatic seizures as initial neurological symptoms significantly more frequently. They developed autoimmune-associated epilepsy more frequently than those with NMDARE and MOGAD, which was not statistically significant. SPECT within 1 month of disease onset might be a valuable surrogate marker of ongoing neuroinflammation and neuronal dysfunction, even in patients with negative MRI findings.
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Affiliation(s)
- Naoki Yamada
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Takeshi Inoue
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Ichiro Kuki
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Naohiro Yamamoto
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Masataka Fukuoka
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Megumi Nukui
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Hideo Okuno
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Junichi Ishikawa
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Kiyoko Amo
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Masao Togawa
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Hiroshi Sakuma
- Department of Brain and Neuroscience, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Shin Okazaki
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
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Dai Y, Zhu Z, Tang Y, Xiao L, Liu X, Zhang M, Xiao B, Hu K, Long L, Xie Y, Hu S. The clinical and predictive value of 18F-FDG PET/CT metabolic patterns in a clinical Chinese cohort with autoimmune encephalitis. CNS Neurosci Ther 2024; 30:e14821. [PMID: 38948940 PMCID: PMC11215490 DOI: 10.1111/cns.14821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/29/2024] [Accepted: 06/14/2024] [Indexed: 07/02/2024] Open
Abstract
AIMS To investigate the diagnostic and predictive role of 18F-FDG PET/CT in patients with autoimmune encephalitis (AE) as a whole group. METHODS Thrty-five patients (20 females and 15 males) with AE were recruited. A voxel-to-voxel semi-quantitative analysis based on SPM12 was used to analyze 18F-FDG PET/CT imaging data compared to healthy controls. Further comparison was made in different prognostic groups categorized by modified Rankin Scale (mRS). RESULTS In total, 24 patients (68.6%) were tested positive neuronal antibodies in serum and/or CSF. Psychiatric symptoms and seizure attacks were major clinical symptoms. In the acute stage, 13 patients (37.1%) demonstrated abnormal brain MRI results, while 33 (94.3%) presented abnormal metabolism patterns. 18F-FDG PET/CT was more sensitive than MRI (p < 0.05). Patients with AE mainly presented mixed metabolism patterns compared to the matched controls, demonstrating hypermetabolism mainly in the cerebellum, BG, MTL, brainstem, insula, middle frontal gyrus, and relatively hypometabolism in the frontal cortex, occipital cortex, temporal gyrus, right parietal gyrus, left cingulate gyrus (p < 0.05, FWE corrected). After a median follow-up of 26 months, the multivariable analysis identified a decreased level of consciousness as an independent risk factor associated with poor outcome of AE (HR = 3.591, p = 0.016). Meanwhile, decreased metabolism of right superior frontal gyrus along with increased metabolism of the middle and upper brainstem was more evident in patients with poor outcome (p < 0.001, uncorrected). CONCLUSION 18F-FDG PET/CT was more sensitive than MRI to detect neuroimaging abnormalities of AE. A mixed metabolic pattern, characterized by large areas of cortical hypometabolism with focal hypermetabolism was a general metabolic pattern. Decreased metabolism of right superior frontal gyrus with increased metabolism of the middle and upper brainstem may predict poor long-term prognosis of AE.
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Affiliation(s)
- Yuwei Dai
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Zehua Zhu
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Department of Nuclear Medicine, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Key Laboratory of Biological Nanotechnology of National Health Commission, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Division of Life Sciences and Medicine, Department of Nuclear Medicine, The First Affiliated Hospital of USTCUniversity of Science and Technology of ChinaHefeiAnhuiP.R. China
| | - Yongxiang Tang
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Department of Nuclear Medicine, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Key Laboratory of Biological Nanotechnology of National Health Commission, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
| | - Ling Xiao
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Department of Nuclear Medicine, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Key Laboratory of Biological Nanotechnology of National Health Commission, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
| | - Xianghe Liu
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Min Zhang
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Bo Xiao
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Kai Hu
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Lili Long
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Yuanyuan Xie
- Department of Neurology, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Clinical Research Center for Epileptic disease of Hunan ProvinceCentral South UniversityChangshaHunanP.R. China
| | - Shuo Hu
- National Clinical Research Center for Geriatric Diseases, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Department of Nuclear Medicine, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
- Key Laboratory of Biological Nanotechnology of National Health Commission, Xiangya HospitalCentral South UniversityChangshaHunanP.R. China
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Sachs N, Zohar-Dayan E, Ben Zeev B, Gilboa T, Kurd M, Latzer IT, Meirson H, Krause I, Dizitzer Y, Cohen EG. Autoimmune encephalitis in Israeli children - A retrospective nationwide study. Eur J Paediatr Neurol 2024; 50:1-5. [PMID: 38518418 DOI: 10.1016/j.ejpn.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/08/2024] [Accepted: 03/02/2024] [Indexed: 03/24/2024]
Abstract
Immune-mediated or autoimmune encephalitis (AE) is a relatively new, rare and elusive form of encephalitis in children. We retrospectively collected seropositive children (0-18 years old) with well characterized antibodies through 3 reference laboratories in Israel. Clinical symptoms, MRI and EEG findings and treatment courses were described. A total of 16 patients were included in the study, with 10 females. Anti NMDA encephalitis was most common followed by anti HU and anti mGLuR1. Psychiatric symptoms, abnormal movements, seizures and behavioral changes were the most common presentation. Pathological MRI and EEG findings were described in 37% and 56% of children, respectively. Treatment with corticosteroids, Intravenous immunoglobulins (IVIG) was first line in most children. Following inadequate response children were treated with plasmapheresis and/or rituximab. Two patients relapsed following both first and second line protocols. In terms of long term prognosis, 9 children (56%) had one or more residual behavioral, psychiatric or neurologic findings. Three children required hospitalization for rehabilitation. AE remains a rare diagnosis with variable presenting symptoms, requiring a high index of suspicion. Consensus recommended treatment is generally effective in the pediatric population. Female gender was associated with a higher chance of severe disease. Larger cohorts would be needed to identify prognostic factors in the pediatric population.
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Affiliation(s)
- Nimrod Sachs
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Efrat Zohar-Dayan
- Pediatric Neurology Unit, Safra Pediatric Hospital, Sheba Medical Center, Ramat-Gan, Israel
| | - Bruria Ben Zeev
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Unit, Safra Pediatric Hospital, Sheba Medical Center, Ramat-Gan, Israel
| | - Tal Gilboa
- Pediatric Neurology Unit, Hadassah Medical Center, Jerusalem, Israel; School of Medicine, The Hebrew University of Jerusalem, Israel
| | - Mohammad Kurd
- Pediatric Neurology Unit, Hadassah Medical Center, Jerusalem, Israel
| | - Itay Tokatly Latzer
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel-Aviv Medical Center, Israel
| | - Hadas Meirson
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel-Aviv Medical Center, Israel
| | - Irit Krause
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yotam Dizitzer
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Esther Ganelin Cohen
- The Neuro-immunological Clinic, The Neurological Institute, Schneider Children's Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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4
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Madani J, Yea C, Mahjoub A, Brna P, Jones K, Longoni G, Nouri MN, Rizk T, Stewart WA, Wilbur C, Yeh EA. Clinical features and outcomes in children with seronegative autoimmune encephalitis. Dev Med Child Neurol 2024. [PMID: 38491729 DOI: 10.1111/dmcn.15896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 03/18/2024]
Abstract
AIM To characterize the presenting features and outcomes in children with seronegative autoimmune encephalitis, and to evaluate whether scores at nadir for the Modified Rankin Scale (mRS) and Clinical Assessment Scale for Autoimmune Encephalitis (CASE) or its paediatric-specific modification (ped-CASE) are predictive of outcomes. METHOD This observational study included children younger than 18 years of age with seronegative autoimmune encephalitis. Demographics and clinical data were collected. The mRS and CASE/ped-CASE scores were used to evaluate disease severity. Descriptive statistics and logistic regression were used for data analysis and to evaluate associations between scale scores and outcomes. RESULTS Sixty-three children were included (39 [62%] females, median age 7 years, interquartile range [IQR] 4 years 1 months-11 years 6 months), with follow-up available for 56 out of 63 patients (median follow-up 12.2 months, IQR 13.4-17.8). The most frequent presenting neurological manifestation was encephalopathy (81%). Median CASE/ped-CASE and mRS scores at nadir were 12.0 (IQR 7.0-17.0) and 1.0 (IQR 0-2.0) respectively. Thirty-three patients (59%) had persistent neurological deficits at follow-up. Both scoring systems suggested good functional recovery (mRS score ≤2, 95%; CASE/ped-CASE score <5, 91%). CASE/ped-CASE score was more likely than mRS to distinguish children with worse outcomes. INTERPRETATION Children with seronegative autoimmune encephalitis are likely to have neurological deficits at follow-up. CASE/ped-CASE is more likely to distinguish children with worse outcomes than MRS.
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Affiliation(s)
- Jihan Madani
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Carmen Yea
- Neurosciences and Mental Health Program, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Areej Mahjoub
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Paula Brna
- Division of Neurology, Dalhousie University IWK Health Center, Halifax, Nova Scotia, Canada
| | - Kevin Jones
- Division of Neurology, McMaster University, Hamilton, Ontario, Canada
| | - Giulia Longoni
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Maryam Nabavi Nouri
- Division of Pediatric Neurology, Department of Pediatrics, Children's Hospital, London Health Science Center, London, Ontario, Canada
| | - Tamer Rizk
- Pediatric Neurology, Department of Pediatrics, Saint John Regional Hospital, St. John, New Brunswick, Canada
| | - Wendy A Stewart
- Pediatric Neurology, Department of Pediatrics, Saint John Regional Hospital, St. John, New Brunswick, Canada
| | - Colin Wilbur
- Division of Neurology, Department of Pediatrics, University of Alberta, Alberta, Canada
| | - E Ann Yeh
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Neurosciences and Mental Health Program, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
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5
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Hahn C, Budhram A, Alikhani K, AlOhaly N, Beecher G, Blevins G, Brooks J, Carruthers R, Comtois J, Cowan J, de Robles P, Hébert J, Kapadia RK, Lapointe S, Mackie A, Mason W, McLane B, Muccilli A, Poliakov I, Smyth P, Williams KG, Uy C, McCombe JA. Canadian Consensus Guidelines for the Diagnosis and Treatment of Autoimmune Encephalitis in Adults. Can J Neurol Sci 2024:1-21. [PMID: 38312020 DOI: 10.1017/cjn.2024.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Autoimmune encephalitis is increasingly recognized as a neurologic cause of acute mental status changes with similar prevalence to infectious encephalitis. Despite rising awareness, approaches to diagnosis remain inconsistent and evidence for optimal treatment is limited. The following Canadian guidelines represent a consensus and evidence (where available) based approach to both the diagnosis and treatment of adult patients with autoimmune encephalitis. The guidelines were developed using a modified RAND process and included input from specialists in autoimmune neurology, neuropsychiatry and infectious diseases. These guidelines are targeted at front line clinicians and were created to provide a pragmatic and practical approach to managing such patients in the acute setting.
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Affiliation(s)
- Christopher Hahn
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Adrian Budhram
- Clinical Neurological Sciences, London Health Sciences Centre, London, ON, Canada
- Department of Pathology and Laboratory Medicine, Western University, London Health Sciences Centre, London, ON, Canada
| | - Katayoun Alikhani
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Nasser AlOhaly
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Grayson Beecher
- Division of Neurology, University of Alberta, Edmonton, AB, Canada
| | - Gregg Blevins
- Division of Neurology, University of Alberta, Edmonton, AB, Canada
| | - John Brooks
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Robert Carruthers
- Division of Neurology, University of British Columbia, Vancouver, BC, Canada
| | - Jacynthe Comtois
- Neurosciences, Universite de Montreal Faculte de Medecine, Montreal, QC, Canada
| | - Juthaporn Cowan
- Division of Infectious Diseases, Department of Medicine Ottawa Hospital, Ottawa, ON, Canada
| | - Paula de Robles
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Oncology, University of Calgary, Calgary, AB, Canada
| | - Julien Hébert
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Ronak K Kapadia
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Sarah Lapointe
- Neurosciences, Universite de Montreal Faculte de Medecine, Montreal, QC, Canada
| | - Aaron Mackie
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | - Warren Mason
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Brienne McLane
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | | | - Ilia Poliakov
- Division of Neurology, University of Saskatchewan College of Medicine, Saskatoon, SK, Canada
| | - Penelope Smyth
- Division of Neurology, University of Alberta, Edmonton, AB, Canada
| | | | - Christopher Uy
- Division of Neurology, University of British Columbia, Vancouver, BC, Canada
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Sullivan MI, Gupta MJ, Taylor KA, Van Mater HA, Pizoli CE. Disease Course and Response to Immunotherapy in Children With Childhood Disintegrative Disorder: A Retrospective Case Series. J Child Neurol 2024; 39:11-21. [PMID: 38115714 DOI: 10.1177/08830738231220278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Childhood disintegrative disorder is a poorly understood neurobehavioral disorder of early childhood characterized by acute to subacute profound regression in previously developed language, social behavior, and adaptive functions. The etiology of childhood disintegrative disorder remains unknown and treatment is focused on symptomatic management. Interest in neuroinflammatory mechanisms has grown with the increased recognition of autoimmune brain diseases and similarities between the presenting symptoms of childhood disintegrative disorder and pediatric autoimmune encephalitis. Importantly, a diagnosis of pediatric autoimmune encephalitis requires evidence of inflammation on paraclinical testing, which is absent in childhood disintegrative disorder. Here we report 5 children with childhood disintegrative disorder who were initially diagnosed with possible autoimmune encephalitis and treated with immunotherapy. Two children had provocative improvements, whereas 3 did not change significantly on immunotherapy. Additionally, a sixth patient with childhood disintegrative disorder evaluated in our Autoimmune Brain Disease Clinic showed spontaneous improvement and is included to highlight the variable natural history of childhood disintegrative disorder that may mimic treatment responsiveness.
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Affiliation(s)
| | - Megha J Gupta
- Department of Neurology, Washington University in St Louis, St Louis, MO, USA
| | - Kathryn A Taylor
- Division of Child Neurology, Medical University of South Carolina, Charleston, SC, USA
| | | | - Carolyn E Pizoli
- Division of Child Neurology, Duke University School of Medicine, Durham, NC, USA
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7
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Vova JA, Howarth RA. Evaluation, Treatment, and Outcomes of Viral and Autoimmune Encephalitis in Children. Pediatr Clin North Am 2023; 70:429-444. [PMID: 37121635 DOI: 10.1016/j.pcl.2023.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Viral encephalitis and autoimmune encephalitis are currently the most common causes of encephalitis. Determining the causative agent is helpful in initiating medical treatment that may help reduce long-term sequelae. Cerebrospinal fluid, neuroimaging, serologic, and electroencephalogram in combination with clinical manifestations play a role in determining the cause of the encephalitis. Although motor dysfunction tends to improve, there is a significant risk of long-term neurologic and cognitive sequelae. These persistent deficits that occur in childhood indicate the importance for ongoing rehabilitative services to maximize functional skills, improve cognitive deficits, and assist with community integration.
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Affiliation(s)
- Joshua A Vova
- Department of Physical Medicine and Rehabilitation, Children's Healthcare of Atlanta, 1001 Johnson Ferry Road Northeast, Atlanta, GA 30342, USA; Department of Neuropsychology, Children's Healthcare of Atlanta, 5461 Meridian Mark Road NE, Atlanta, GA 30342, USA; Department of Pediatrics, Division of Neurology, Emory University School of Medicine.
| | - Robyn A Howarth
- Department of Neuropsychology, Children's Healthcare of Atlanta, 5461 Meridian Mark Road NE, Atlanta, GA 30342, USA; Department of Pediatrics, Division of Neurology, Emory University School of Medicine
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8
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Gagliano A, Carta A, Tanca MG, Sotgiu S. Pediatric Acute-Onset Neuropsychiatric Syndrome: Current Perspectives. Neuropsychiatr Dis Treat 2023; 19:1221-1250. [PMID: 37251418 PMCID: PMC10225150 DOI: 10.2147/ndt.s362202] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023] Open
Abstract
Pediatric acute-onset neuropsychiatric syndrome (PANS) features a heterogeneous constellation of acute obsessive-compulsive disorder (OCD), eating restriction, cognitive, behavioral and/or affective symptoms, often followed by a chronic course with cognitive deterioration. An immune-mediated etiology is advocated in which the CNS is hit by different pathogen-driven (auto)immune responses. This narrative review focused on recent clinical (ie, diagnostic criteria, pre-existing neurodevelopmental disorders, neuroimaging) and pathophysiological (ie, CSF, serum, genetic and autoimmune findings) aspects of PANS. We also summarized recent points to facilitate practitioners with the disease management. Relevant literature was obtained from PubMed database which included only English-written, full-text clinical studies, case reports, and reviews. Among a total of 1005 articles, 205 were pertinent to study inclusion. Expert opinions are converging on PANS as the effect of post-infectious events or stressors leading to "brain inflammation", as it is well-established for anti-neuronal psychosis. Interestingly, differentiating PANS from either autoimmune encephalitides and Sydenham's chorea or from alleged "pure" psychiatric disorders (OCD, tics, Tourette's syndrome), reveals several overlaps and more analogies than differences. Our review highlights the need for a comprehensive algorithm to help both patients during their acute distressing phase and physicians during their treatment decision. A full agreement on the hierarchy of each therapeutical intervention is missing owing to the limited number of randomized controlled trials. The current approach to PANS treatment emphasizes immunomodulation/anti-inflammatory treatments in association with both psychotropic and cognitive-behavioral therapies, while antibiotics are suggested when an active bacterial infection is established. A dimensional view, taking into account the multifactorial origin of psychiatric disorders, should suggest neuro-inflammation as a possible shared substrate of different psychiatric phenotypes. Hence, PANS and PANS-related disorders should be considered as a conceptual framework describing the etiological and phenotypical complexity of many psychiatric disorders.
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Affiliation(s)
- Antonella Gagliano
- Department of Health Science, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
- Department of Biomedical Sciences, University of Cagliari & "A. Cao" Paediatric Hospital, Child & Adolescent Neuropsychiatry Unit, Cagliari, Italy
| | - Alessandra Carta
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Unit of Child Neuropsychiatry, Sassari, Italy
| | - Marcello G Tanca
- Department of Biomedical Sciences, University of Cagliari & "A. Cao" Paediatric Hospital, Child & Adolescent Neuropsychiatry Unit, Cagliari, Italy
| | - Stefano Sotgiu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Unit of Child Neuropsychiatry, Sassari, Italy
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9
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Yu S, Hua Y, Qian J, Sun M, Kang YJ. The presence of human respiratory syncytial virus in the cerebrospinal fluid of a child with Anti-N-methyl-D-aspartate receptor encephalitis of unknown trigger. Virol J 2023; 20:34. [PMID: 36829236 PMCID: PMC9951452 DOI: 10.1186/s12985-023-01997-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 02/21/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is an important type of brain inflammation caused by autoantibody. As one of the primary agents responsible for respiratory tract infection, the human respiratory syncytial virus (hRSV) has also been reported to be capable of causing extrapulmonary diseases. Here, we first describe a case of anti-NMDAR encephalitis when hRSV was shown to be present in the cerebrospinal fluid. CASE PRESENTATION The child was noted to have ataxia and positive anti-NMDA receptors in the cerebrospinal fluid, diagnosed as anti-NMDA receptor encephalitis in combination with cranial MRI images. After high-dose hormone pulse therapy and medication, the disease improved, and he was discharged. However, a relapse occurred almost a year later, and the cranial MRI imaging showed progressive cerebellar atrophy. An hRSV strain from group B was detected in his cerebrospinal fluid, and the whole genome sequence was recovered using transcriptome sequencing. CONCLUSIONS To our knowledge, this is the first report of hRSV being found in the cerebrospinal fluid of a patient with anti-NMDAR encephalitis. Even though more clinical records and experimental evidence are needed for validation, this work expands the types of diseases linked to hRSV and the likely cause of anti-NMDAR encephalitis.
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Affiliation(s)
- Siyan Yu
- Pediatric Laboratory, Wuxi Children's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China.,The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ying Hua
- Department of Neurology, Wuxi Children's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Jun Qian
- Pediatric Laboratory, Wuxi Children's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Mingxia Sun
- Department of Neurology, Wuxi Children's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China.
| | - Yan-Jun Kang
- Pediatric Laboratory, Wuxi Children's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China.
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10
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Della Marina A, Bertolini A, Wegener-Panzer A, Flotats-Bastardas M, Reinhardt T, El Naggar I, Distelmaier F, Blaschek A, Schara-Schmidt U, Brunet T, Wagner M, Smirnov D, Prokisch H, Wortmann SB, Rostasy K. Mitochondrial diseases mimicking autoimmune diseases of the CNS and good response to steroids initially. Eur J Paediatr Neurol 2022; 41:27-35. [PMID: 36162141 DOI: 10.1016/j.ejpn.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/05/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Neuroimmunological diseases such as autoimmune encephalitis (AE) or acquired demyelinating syndromes (ADS), can present with neurological symptoms and imaging features that are indistinguishable from mitochondrial diseases (MD) in particular at initial presentation. METHODS Retrospective analysis of the clinical, laboratory and neuroimaging features of five patients who presented with signs of a neuroimmunological disease but all had pathological pathogenic variants in genes related to mitochondrial energy metabolism. RESULTS Four patients presented with an acute neurological episode reminiscent of a possible AE and one patient with a suspected ADS at initial presentation. MRI findings were compatible with neuroimmunological diseases in all patients. In two children cerebrospinal fluid (CSF) studies revealed a mildly elevated cell count, two had elevated CSF lactate, none had oligoclonal bands (OCBs). All patients improved rapidly with intravenous steroids or immunoglobulins. Four patients had one or more relapses. Three patients showed worsening of their neurological symptoms with subsequent episodes and one patient died. Relapses in conjunction with new and progressive neurological symptoms, led to additional work-up which finally resulted in different genetic diagnosis of MD in all patients (MT-TL1, MT-ND5, APOA1-BP, HPDL, POLG). DISCUSSION We would like to draw attention to a subset of patients with MD initially presenting with signs and symptoms mimicking neuroimmunological. Absence of CSF pleocytosis, elevated CSF lactate and progressive, relapsing course should trigger further (genetic) investigations in search of a MD even in patients with good response initially to immunomodulating therapies.
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Affiliation(s)
- Adela Della Marina
- Department of Pediatric Neurology, Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen, Essen, Germany
| | - Annikki Bertolini
- Department of Pediatric Neurology, Children's Hospital Datteln, University Witten/Herdecke, Datteln, Germany
| | - Andreas Wegener-Panzer
- Department of Pediatric Radiology, Children's Hospital Datteln, University Witten/Herdecke, Datteln, Germany
| | | | - Tabea Reinhardt
- Department of Pediatric Neurology, Saarland University Medical Center, Homburg, Germany
| | - Ines El Naggar
- Department of Pediatric Neurology, Children's Hospital Datteln, University Witten/Herdecke, Datteln, Germany
| | - Felix Distelmaier
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Astrid Blaschek
- Department of Pediatric Neurology and Development Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Ulrike Schara-Schmidt
- Department of Pediatric Neurology, Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen, Essen, Germany
| | - Theresa Brunet
- School of Medicine, Institute of Human Genetics, Technical University of Munich, Munich, Germany
| | - Matias Wagner
- Department of Pediatric Neurology and Development Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany; School of Medicine, Institute of Human Genetics, Technical University of Munich, Munich, Germany; Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Dimitri Smirnov
- School of Medicine, Institute of Human Genetics, Technical University of Munich, Munich, Germany; Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Holger Prokisch
- School of Medicine, Institute of Human Genetics, Technical University of Munich, Munich, Germany; Institute of Neurogenomics, Computational Health Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Saskia B Wortmann
- University Children's Hospital, Paracelsus Medical University (PMU), Salzburg, Austria; Amalia Children's Hospital, Radboudumc, Nijmegen, the Netherlands
| | - Kevin Rostasy
- Department of Pediatric Neurology, Children's Hospital Datteln, University Witten/Herdecke, Datteln, Germany.
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11
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Fan M, Sun W, Chen D, Dong T, Yan W, Zhang M, Yang H, Li J, Wang X. Severity of Hospitalized Children with Anti-NMDAR Autoimmune Encephalitis. J Child Neurol 2022; 37:749-757. [PMID: 35903932 DOI: 10.1177/08830738221075886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Information on the clinical characteristics and severity of autoimmune encephalitis with antibodies against the N-methyl-d-aspartate receptor (NMDAR) in children is attracting more and more attention in the field of pediatric research. Methods: In this retrospective cohort study, all cases (n = 67) were enrolled from a tertiary children's hospital, from 2017 to 2020. We compared severe cases that received intensive care unit (ICU) care with nonsevere cases that did not receive ICU care and used machine learning algorithm to predict the severity of children, as well as using immunologic and viral nucleic acid tests to identify possible pathogenic triggers. Results: Mean age of children was 8.29 (standard deviation 4.09) years, and 41 (61.19%) were girls. Eleven (16.42%) were admitted to the ICU, and 56 (83.58%) were admitted to neurology ward. Ten individual parameters were statistically significant differences between severe cases and nonsevere cases (P < .05), including headache, abnormal mental behavior or cognitive impairment, seizures, concomitant tumors, sputum/blood pathogens, blood globulin, blood urea nitrogen, blood immunoglobulin G, blood immunoglobulin M, and number of polynucleated cells in cerebrospinal fluid. Random forest regression model presented that the overall prediction power of severity reached 0.806, among which the number of polynucleated cells in cerebrospinal fluid contributed the most. Potential pathogenic causes exhibited that the proportion of mycoplasma was the highest, followed by Epstein-Barr virus. Conclusion: Our findings provided evidence for early identification of autoimmune encephalitis in children, especially in severe cases.
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Affiliation(s)
- Mingxing Fan
- Department of Emergency, Pediatric Intensive Care Unit, 159388Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Wenjie Sun
- Department of blood transfusion, 159388Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Danrong Chen
- School of Public Health, 572407Nanjing Medical University, Nanjing, China
| | - Tianyu Dong
- Tripod (Nanjing) Clinical Research Co, Ltd, Nanjing, China.,Jiangsu Tripod Preclinical Research Laboratories Co, Ltd, Nanjing, China
| | - Wu Yan
- School of Public Health, 572407Nanjing Medical University, Nanjing, China
| | - Mingzhi Zhang
- School of Public Health, 572407Nanjing Medical University, Nanjing, China
| | - Haibo Yang
- Department of Emergency, Pediatric Intensive Care Unit, 159388Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jun Li
- Department of Emergency, Pediatric Intensive Care Unit, 159388Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Xu Wang
- Department of endocrinology, 159388Children's Hospital of Nanjing Medical University, Nanjing , China
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12
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Rossor T, Yeh EA, Khakoo Y, Angelini P, Hemingway C, Irani SR, Schleiermacher G, Santosh P, Lotze T, Dale RC, Deiva K, Hero B, Klein A, de Alarcon P, Gorman MP, Mitchell WG, Lim M. Diagnosis and Management of Opsoclonus-Myoclonus-Ataxia Syndrome in Children: An International Perspective. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2022; 9:e1153. [PMID: 35260471 PMCID: PMC8906188 DOI: 10.1212/nxi.0000000000001153] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/18/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVES Opsoclonus-myoclonus-ataxia syndrome (OMAS) is a rare disorder of the nervous system that classically presents with a combination of characteristic eye movement disorder and myoclonus, in addition to ataxia, irritability, and sleep disturbance. There is good evidence that OMAS is an immune-mediated condition that may be paraneoplastic in the context of neuroblastoma. This syndrome may be associated with long-term cognitive impairment, yet it remains unclear how this is influenced by disease course and treatment. Treatment is largely predicated on immune suppression, but there is limited evidence to indicate an optimal regimen. METHODS Following an international multiprofessional workshop in 2004, a body of clinicians and scientists comprising the International OMS Study group continued to meet biennially in a joint professionals and family workshop focusing on pediatric OMAS. Seventeen years after publication of the first report, a writing group was convened to provide a clinical update on the definitions and clinical presentation of OMAS, biomarkers and the role of investigations in a child presenting with OMAS, treatment and management strategies including identification and support of long-term sequelae. RESULTS The clinical criteria for diagnosis were reviewed, with a proposed approach to laboratory and radiologic investigation of a child presenting with possible OMAS. The evidence for an upfront vs escalating treatment regimen was reviewed, and a treatment algorithm proposed to recognize both these approaches. Importantly, recommendations on monitoring of immunotherapy response and longer-term follow-up based on an expert consensus are provided. DISCUSSION OMAS is a rare neurologic condition that can be associated with poor cognitive outcomes. This report proposes an approach to investigation and treatment of children presenting with OMAS, based on expert international opinion recognizing the limited data available.
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Affiliation(s)
- Thomas Rossor
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - E. Ann Yeh
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Yasmin Khakoo
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Paola Angelini
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Cheryl Hemingway
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Sarosh R. Irani
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Gudrun Schleiermacher
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Paramala Santosh
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Tim Lotze
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Russell C. Dale
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Kumaran Deiva
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Barbara Hero
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Andrea Klein
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Pedro de Alarcon
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Mark P. Gorman
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Wendy G. Mitchell
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
| | - Ming Lim
- From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles
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13
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Abstract
Dominant missense mutations in RanBP2/Nup358 cause Acute Necrotizing Encephalopathy (ANE), a pediatric disease where seemingly healthy individuals develop a cytokine storm that is restricted to the central nervous system in response to viral infection. Untreated, this condition leads to seizures, coma, long-term neurological damage and a high rate of mortality. The exact mechanism by which RanBP2 mutations contribute to the development of ANE remains elusive. In November 2021, a number of clinicians and basic scientists presented their work on this disease and on the interactions between RanBP2/Nup358, viral infections, the innate immune response and other cellular processes.
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Affiliation(s)
| | - Jomon Joseph
- National Centre for Cell Science, S.P. Pune University Campus, Pune, India
| | - Ming Lim
- Children's Neurosciences, Evelina London Children's Hospital, and the Department of Women and Children's Health, King's College London, London, UK
| | - Kiran T Thakur
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, and the New York Presbyterian Hospital, New York
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14
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Abstract
Autoimmune encephalitis (AE) comprises a heterogeneous group of disorders in which the host immune system targets self-antigens expressed in the central nervous system. The most conspicuous example is an anti-N-methyl-D-aspartate receptor encephalitis linked to a complex neuropsychiatric syndrome. Current treatment of AE is based on immunotherapy and has been established according to clinical experience and along the concept of a B cell-mediated pathology induced by highly specific antibodies to neuronal surface antigens. In general, immunotherapy for AE follows an escalating approach. When first-line therapy with steroids, immunoglobulins, and/or plasma exchange fails, one converts to second-line immunotherapy. Alkylating agents could be the first choice in this stage. However, due to their side effect profile, most clinicians give preference to monoclonal antibodies (mAbs) directed at B cells such as rituximab. Newer mAbs might be added as a third-line therapy in the future, or be given even earlier if shown effective. In this chapter, we will discuss mAbs targeting B cells (rituximab, ocrelizumab, inebulizumab, daratumumab), IL-6 (tocilizumab, satralizumab), the neonatal Fc receptor (FCRn) (efgartigimod, rozanolixizumab), and the complement cascade (eculizumab).
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Affiliation(s)
- I Smets
- Erasmus University Medical Center, Rotterdam, The Netherlands
| | - M J Titulaer
- Erasmus University Medical Center, Rotterdam, The Netherlands.
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15
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Pisano S, Melis M, Figorilli M, Polizzi L, Rocchi L, Giglio S, Defazio G, Muroni A. Neurological Phenomenology of the IRF2BPL Mutation Syndrome: Analysis of a New Case and Systematic Review of the Literature. Seizure 2022; 99:12-15. [DOI: 10.1016/j.seizure.2022.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/01/2022] [Accepted: 04/16/2022] [Indexed: 10/18/2022] Open
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16
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Wright MA, Trandafir CC, Nelson GR, Hersh AO, Inman CJ, Zielinski BA. Diagnosis and Management of Suspected Pediatric Autoimmune Encephalitis: A Comprehensive, Multidisciplinary Approach and Review of Literature. J Child Neurol 2022; 37:303-313. [PMID: 34927485 DOI: 10.1177/08830738211064673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Autoimmune encephalitis is an increasingly recognized entity in children. When treated promptly, favorable outcomes are seen in a majority of pediatric patients. However, recognition of autoimmune encephalitis in young patients is challenging. Once autoimmune encephalitis is suspected, additional difficulties exist regarding timing of treatment initiation and duration of treatment, as evidence to guide management of these patients is emerging. Here, we review available literature regarding pediatric autoimmune encephalitis and present our institution's comprehensive approach to the evaluation and management of the disease. These guidelines were developed through an iterative process involving both pediatric neurologists and rheumatologists.
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Affiliation(s)
- Melissa A Wright
- Division of Pediatric Neurology, Department of Pediatrics, 14434University of Utah, Salt Lake City, UT, USA
| | - Cristina C Trandafir
- Division of Pediatric Neurology, Department of Pediatrics, 14434University of Utah, Salt Lake City, UT, USA.,Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, 3989Baylor College of Medicine, Houston, TX, USA
| | - Gary R Nelson
- Division of Pediatric Neurology, Department of Pediatrics, 14434University of Utah, Salt Lake City, UT, USA
| | - Aimee O Hersh
- Division of Pediatric Rheumatology, Department of Pediatrics, 14434University of Utah, Salt Lake City, UT, USA
| | - C J Inman
- Division of Pediatric Rheumatology, Department of Pediatrics, 14434University of Utah, Salt Lake City, UT, USA
| | - Brandon A Zielinski
- Division of Pediatric Neurology, Department of Pediatrics, 14434University of Utah, Salt Lake City, UT, USA.,Department of Neurology, 14434University of Utah, Salt Lake City, UT, USA
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17
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Rosello R, Girela-Serrano B, Gómez S, Baig B, Lim M, Taylor S. Characterizing the features and course of psychiatric symptoms in children and adolescents with autoimmune encephalitis. Eur Arch Psychiatry Clin Neurosci 2022; 272:477-482. [PMID: 34272976 PMCID: PMC8938365 DOI: 10.1007/s00406-021-01293-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 07/04/2021] [Indexed: 01/14/2023]
Abstract
Autoimmune encephalitis (AE) can present like a psychiatric disorder. We aimed to illustrate the psychiatric manifestations, course and management of AE in a paediatric cohort. Neuropsychiatric symptoms, investigations and treatment were retrospectively retrieved in 16 patients (mean age 11.31, SD 2.98) with an AE diagnosis at the liaison psychiatry services in two UK tertiary paediatric centres. Psychiatric presentation was characterised by an acute polysymptomatic (predominantly agitation, anger outbursts/aggressiveness, hallucinations, and emotional lability) onset. Antipsychotics produced side effects and significant worsening of symptoms in four cases, and benzodiazepines were commonly used. This psychiatric phenotype should make clinicians suspect the diagnosis of AE and carefully consider use of treatments.
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Affiliation(s)
- R Rosello
- Division of Psychiatry, Imperial College, London, UK
| | | | - S Gómez
- Division of Psychiatry, King’s College, London, UK
| | - B Baig
- South London and Maudsley NHS Trust, London, UK
| | - M Lim
- Children's Neurosciences Centre, Evelina London Children's Hospital, London, UK. .,Department Women and Children's Health, School of Life Course Sciences (SoLCS), King's College London, London, UK.
| | - S Taylor
- Division of Psychiatry, Imperial College, London, UK
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18
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Ancona C, Masenello V, Tinnirello M, Toscano LM, Leo A, La Piana C, Toldo I, Nosadini M, Sartori S. Autoimmune Encephalitis and Other Neurological Syndromes With Rare Neuronal Surface Antibodies in Children: A Systematic Literature Review. Front Pediatr 2022; 10:866074. [PMID: 35515348 PMCID: PMC9067304 DOI: 10.3389/fped.2022.866074] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/16/2022] [Indexed: 11/13/2022] Open
Abstract
Neuronal surface antibody syndromes (NSAS) are an expanding group of autoimmune neurological diseases, whose most frequent clinical manifestation is autoimmune encephalitis (AE). Anti-NMDAR, anti-LGI1, and anti-CASPR2 autoimmunity represent the most described forms, while other NSAS are rarer and less well-characterized, especially in children. We carried out a systematic literature review of children with rare NSAS (with antibodies targeting D2R, GABAAR, GlyR, GABABR, AMPAR, amphiphysin, mGluR5, mGluR1, DPPX, IgLON5, and neurexin-3alpha) and available individual data, to contribute to improve their clinical characterization and identification of age-specific features. Ninety-four children were included in the review (47/94 female, age range 0.2-18 years). The most frequent NSAS were anti-D2R (28/94, 30%), anti-GABAAR (23/94, 24%), and anti-GlyR (22/94, 23%) autoimmunity. The most frequent clinical syndromes were AE, including limbic and basal ganglia encephalitis (57/94, 61%; GABAAR, D2R, GABABR, AMPAR, amphiphysin, and mGluR5), and isolated epileptic syndromes (15/94, 16%; GlyR, GABAAR). With the limitations imposed by the low number of cases, the main distinctive features of our pediatric literature cohort compared to the respective NSAS in adults included: absent/lower tumor association (exception made for anti-mGluR5 autoimmunity, and most evident in anti-amphiphysin autoimmunity); loss of female preponderance (AMPAR); relatively frequent association with preceding viral encephalitis (GABAAR, D2R). Moreover, while SPS and PERM are the most frequent syndromes in adult anti-GlyR and anti-amphiphysin autoimmunity, in children isolated epileptic syndromes and limbic encephalitis appear predominant, respectively. To our knowledge, this is the first systematic review on rare pediatric NSAS. An improved characterization may aid their recognition in children.
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Affiliation(s)
- Claudio Ancona
- Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Valentina Masenello
- Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Matteo Tinnirello
- Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Luca Mattia Toscano
- Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Andrea Leo
- Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Chiara La Piana
- Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Irene Toldo
- Paediatric Neurology and Neurophysiology Unit, Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Margherita Nosadini
- Paediatric Neurology and Neurophysiology Unit, Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy.,Neuroimmunology Group, Paediatric Research Institute "Città della Speranza", Padova, Italy
| | - Stefano Sartori
- Paediatric Neurology and Neurophysiology Unit, Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy.,Neuroimmunology Group, Paediatric Research Institute "Città della Speranza", Padova, Italy
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19
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Usefulness of brain FDG PET/CT imaging in pediatric patients with suspected autoimmune encephalitis from a prospective study. Eur J Nucl Med Mol Imaging 2021; 49:1918-1929. [PMID: 34939173 PMCID: PMC9016000 DOI: 10.1007/s00259-021-05649-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/03/2021] [Indexed: 11/23/2022]
Abstract
Purpose Early diagnosis and treatment are of paramount importance for pediatric patients with autoimmune encephalitis (AE). The aim is to evaluate the usefulness of FDG PET/CT in pediatric patients with suspected AE from a prospective study. Methods The prospective study was conducted over a period of 23.5 months from May 14, 2019, to April 30, 2021. All patients (< 18-year-old) were hospitalized at the department of pediatric neurology and met the criteria of clinical suspected AE. The children underwent the tests of blood samplings, CSF, EEG, MRI, and 18F-FDG PET/CT. The criteria for FDG PET/CT diagnosis of AE were large lobar hypometabolism with or without focal hypermetabolism found on PET/CT. The clinical final diagnosis of AE includes seropositive and seronegative AE based on the diagnostic criteria. Results One hundred four pediatric inpatients (57 boys, 47 girls) were included, of which 58 children were diagnosed with AE (seropositive, 16; seronegative, 42), 45 children were diagnosed with non-AE, and one boy remained indeterminate diagnosis. Large lobar hypometabolism was found in 61 children, of which 54 (88.5%) children were finally diagnosed with AE. The sensitivity, specificity, and accuracy of FDG PET/CT for diagnosis of AE were 93.1%, 84.4%, and 89.3%, respectively, with a positive predictive value of 88.5% and a negative predictive value of 90.5%. The most common involved with hypometabolism was the parietal lobe, followed by occipital and frontal lobes, finally the temporal lobe on PET/CT in children with AE. Conclusion Brain FDG PET/CT imaging has high specificity, sensitivity, and accuracy for diagnosis of AE in clinical suspected AE children. Trial registration. Clinical Trials.gov. NCT02969213. Registered 17 October 2016.
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20
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Dou X, Li D, Wu F, Wang Z, Niu M, Wu Y, Deng T, Wang D, Li X. The clinical features, treatment and outcomes of 33 children from Northwestern China with Anti-N-methyl-D-aspartate receptor encephalitis. Neurol Res 2021; 44:429-438. [PMID: 34806564 DOI: 10.1080/01616412.2021.2000824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVES We analyzed the clinical features and outcomes of children with anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis in Northwestern China. METHODS We retrospectively recruited 33 pediatric patients with anti-NMDAR encephalitis in Northwestern China from December 2013 to April 2020. The demographics, clinical features, treatments, and outcomes were reviewed. RESULTS 33 patients with anti-NMDAR encephalitis were enrolled in this study (a median age of 6.8 years, 20 females and 13 males). The initial symptoms included seizures (42.4%), psychiatric symptoms (39.4%), speech dysfunction (12.1%), and paralysis (6.1%). During the course of the disease, 31 patients (93.9%) presented with psychiatric symptoms, 29 patients (87.9%) presented with speech dysfunction, 25 patients (75.8%) presented with movement disorders and 24 patients (72.7%) presented with sleep disorders followed by seizures, consciousness disturbance, autonomic nervous dysfunction, paralysis, and hypoventilation. 12 patients (36.4%) had abnormal cerebrospinal fluid (CSF) findings, 10 patients (30.3%) exhibited abnormal brain magnetic resonance imaging (MRI) results, and 29 patients (87.9%) showed abnormal Electroencephalography (EEG) findings. None of the patients had tumors. All patients received first-line immunotherapy and 8 patients both received first and second-line immunotherapy. 30 of the 33 patients achieved good outcomes (score on the modified Rankin Scale [mRS] of 0-2), whilst the other 3 patients had poor outcomes (mRS score of 3-6). CONCLUSIONS Patients with higher CSF anti-NMDAR body titer were more likely to develop sleep disorders, consciousness disturbances and more severe disease states.
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Affiliation(s)
- Xiangjun Dou
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Dongjing Li
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Fang Wu
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Zhijing Wang
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Mengmeng Niu
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - You Wu
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Ting Deng
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Dong Wang
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
| | - Xia Li
- Department of Pediatric Neurology, Xi'an Children' Hospital, China
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21
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Nosadini M, Eyre M, Molteni E, Thomas T, Irani SR, Dalmau J, Dale RC, Lim M, Anlar B, Armangue T, Benseler S, Cellucci T, Deiva K, Gallentine W, Gombolay G, Gorman MP, Hacohen Y, Jiang Y, Lim BC, Muscal E, Ndondo A, Neuteboom R, Rostásy K, Sakuma H, Sartori S, Sharma S, Tenembaum SN, Van Mater HA, Wells E, Wickstrom R, Yeshokumar AK. Use and Safety of Immunotherapeutic Management of N-Methyl-d-Aspartate Receptor Antibody Encephalitis: A Meta-analysis. JAMA Neurol 2021; 78:1333-1344. [PMID: 34542573 PMCID: PMC8453367 DOI: 10.1001/jamaneurol.2021.3188] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Question What are the most effective treatments for N-methyl-d-aspartate receptor (NMDAR) antibody encephalitis? Findings In this meta-analysis of individual patient data including 1550 cases, treatment factors at first event that were significantly associated with good functional outcome 12 months from disease onset included first-line treatment with therapeutic apheresis alone, corticosteroids in combination with intravenous immunoglobulin (IVIG), or corticosteroids in combination with IVIG and therapeutic apheresis, while lack of immunotherapy within 30 days of disease onset was significantly associated with poor outcome. Rituximab and long-term IVIG use were significantly associated with nonrelapsing disease course. Meaning Separate treatment factors are associated with functional outcomes and relapsing disease biology in those with NMDAR antibody encephalitis. Importance Overall, immunotherapy has been shown to improve outcomes and reduce relapses in individuals with N-methyl-d-aspartate receptor (NMDAR) antibody encephalitis (NMDARE); however, the superiority of specific treatments and combinations remains unclear. Objective To map the use and safety of immunotherapies in individuals with NMDARE, identify early predictors of poor functional outcome and relapse, evaluate changes in immunotherapy use and disease outcome over the 14 years since first reports of NMDARE, and assess the Anti-NMDAR Encephalitis One-Year Functional Status (NEOS) score. Data Sources Systematic search in PubMed from inception to January 1, 2019. Study Selection Published articles including patients with NMDARE with positive NMDAR antibodies and available individual immunotherapy data. Data Extraction and Synthesis Individual patient data on immunotherapies, clinical characteristics at presentation, disease course, and final functional outcome (modified Rankin Scale [mRS] score) were entered into multivariable logistic regression models. Main Outcomes and Measures The planned study outcomes were functional outcome at 12 months from disease onset (good, mRS score of 0 to 2; poor, mRS score greater than 2) and monophasic course (absence of relapse at 24 months or later from onset). Results Data from 1550 patients from 652 articles were evaluated. Of these, 1105 of 1508 (73.3%) were female and 707 of 1526 (46.3%) were 18 years or younger at disease onset. Factors at first event that were significantly associated with good functional outcome included adolescent age and first-line treatment with therapeutic apheresis, corticosteroids plus intravenous immunoglobulin (IVIG), or corticosteroids plus IVIG plus therapeutic apheresis. Factors significantly associated with poor functional outcome were age younger than 2 years or age of 65 years or older at onset, intensive care unit admission, extreme delta brush pattern on electroencephalography, lack of immunotherapy within the first 30 days of onset, and maintenance IVIG use for 6 months or more. Factors significantly associated with nonrelapsing disease were rituximab use or maintenance IVIG use for 6 months or more. Adolescent age at onset was significantly associated with relapsing disease. Rituximab use increased from 13.5% (52 of 384; 2007 to 2013) to 28.3% (311 of 1100; 2013 to 2019) (P < .001), concurrent with a falling relapse rate over the same period (22% [12 of 55] in 2008 and earlier; 10.9% [35 of 322] in 2017 and later; P = .006). Modified NEOS score (including 4 of 5 original NEOS items) was associated with probability of poor functional status at 1 year (20.1% [40 of 199] for a score of 0 to 1 points; 43.8% [77 of 176] for a score of 3 to 4 points; P = .05). Conclusions and Relevance Factors influencing functional outcomes and relapse are different and need to be considered independently in development of evidence-based optimal management guidelines of patients with NMDARE.
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Affiliation(s)
- Margherita Nosadini
- Paediatric Neurology and Neurophysiology Unit, Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy.,Neuroimmunology Group, Paediatric Research Institute "Città della Speranza," Padova, Italy
| | - Michael Eyre
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Erika Molteni
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Centre for Medical Engineering, King's College London, London, United Kingdom
| | - Terrence Thomas
- Department of Paediatrics, Neurology Service, KK Women's and Children's Hospital, Singapore
| | - Sarosh R Irani
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.,Department of Neurology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Josep Dalmau
- Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Barcelona, Spain.,Department of Neurology, University of Pennsylvania, Philadelphia.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Russell C Dale
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, Westmead, Australia
| | - Ming Lim
- Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.,Department of Women and Children's Health, School of Life Course Sciences (SoLCS), King's College London, London, United Kingdom
| | | | | | - Thaís Armangue
- Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Barcelona, Spain.,Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Barcelona, Spain
| | - Susanne Benseler
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - Kumaran Deiva
- Assistance Publique-Hôpitaux de Paris, University Hospitals Paris Saclay, Bicêtre Hospital, Paris, France.,French Reference Network of Rare Inflammatory Brain and Spinal Diseases, Paris, France.,European Reference Network-RITA, Paris, France
| | - William Gallentine
- Stanford University and Lucile Packard Children's Hospital, Palo Alto, California
| | - Grace Gombolay
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Mark P Gorman
- Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yael Hacohen
- Queen Square MS Centre, UCL Institute of Neurology, University College London, London, United Kingdom.,Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, United Kingdom
| | - Yuwu Jiang
- Peking University First Hospital, Beijing, China
| | - Byung Chan Lim
- Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eyal Muscal
- Section Rheumatology, Texas Children's Hospital, Baylor College of Medicine, Houston
| | - Alvin Ndondo
- Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa.,Faculty of Health Sciences, University of Cape Town Neuroscience Institute, Cape Town, South Africa
| | | | - Kevin Rostásy
- Children's Hospital Datteln, University Witten/Herdecke, Witten, Germany
| | - Hiroshi Sakuma
- Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Stefano Sartori
- Neuroimmunology Group, Paediatric Research Institute "Città della Speranza," Padova, Italy.,University Hospital of Padova, Padova, Italy
| | - Suvasini Sharma
- Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India
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Nosadini M, Thomas T, Eyre M, Anlar B, Armangue T, Benseler SM, Cellucci T, Deiva K, Gallentine W, Gombolay G, Gorman MP, Hacohen Y, Jiang Y, Lim BC, Muscal E, Ndondo A, Neuteboom R, Rostásy K, Sakuma H, Sharma S, Tenembaum SN, Van Mater HA, Wells E, Wickstrom R, Yeshokumar AK, Irani SR, Dalmau J, Lim M, Dale RC. International Consensus Recommendations for the Treatment of Pediatric NMDAR Antibody Encephalitis. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 8:8/5/e1052. [PMID: 34301820 PMCID: PMC8299516 DOI: 10.1212/nxi.0000000000001052] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/21/2021] [Indexed: 12/19/2022]
Abstract
Objective To create an international consensus treatment recommendation for pediatric NMDA receptor antibody encephalitis (NMDARE). Methods After selection of a panel of 27 experts with representation from all continents, a 2-step Delphi method was adopted to develop consensus on relevant treatment regimens and statements, along with key definitions in pediatric NMDARE (disease severity, failure to improve, and relapse). Finally, an online face-to-face meeting was held to reach consensus (defined as ≥75% agreement). Results Corticosteroids are recommended in all children with NMDARE (pulsed IV preferred), with additional IV immunoglobulin or plasma exchange in severe patients. Prolonged first-line immunotherapy can be offered for up to 3–12 months (oral corticosteroids or monthly IV corticosteroids/immunoglobulin), dependent on disease severity. Second-line treatments are recommended for cases refractory to first-line therapies (rituximab preferred over cyclophosphamide) and should be considered about 2 weeks after first-line initiation. Further immunotherapies for refractory disease 1-3 months after second-line initiation include another second-line treatment (such as cyclophosphamide) and escalation to tocilizumab. Maintenance immune suppression beyond 6 months (such as rituximab redosing or mycophenolate mofetil) is generally not required, except for patients with a more severe course or prolonged impairments and hospitalization. For patients with relapsing disease, second-line and prolonged maintenance therapy should be considered. The treatment of NMDARE following herpes simplex encephalitis should be similar to idiopathic NMDARE. Broad guidance is provided for the total treatment duration (first line, second line, and maintenance), which is dictated by the severity and clinical course (i.e., median 3, 9 and 18 months in the best, average, and worst responders, respectively). Recommendations on the timing of oncologic searches are provided. Conclusion These international consensus recommendations for the management of pediatric NMDARE aim to standardize the treatment and provide practical guidance for clinicians, rather than absolute rules. A similar recommendation could be applicable to adult patients.
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Affiliation(s)
- Margherita Nosadini
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Terrence Thomas
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Michael Eyre
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Banu Anlar
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Thais Armangue
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Susanne M Benseler
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Tania Cellucci
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Kumaran Deiva
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - William Gallentine
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Grace Gombolay
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Mark P Gorman
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Yael Hacohen
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Yuwu Jiang
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Byung Chan Lim
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Eyal Muscal
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Alvin Ndondo
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Rinze Neuteboom
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Kevin Rostásy
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Hiroshi Sakuma
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Suvasini Sharma
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Silvia Noemi Tenembaum
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Heather Ann Van Mater
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Elizabeth Wells
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Ronny Wickstrom
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Anusha K Yeshokumar
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Sarosh R Irani
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Josep Dalmau
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Ming Lim
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Russell C Dale
- From the Paediatric Neurology and Neurophysiology Unit (M.N.), Department of Women's and Children's Health, University Hospital of Padova; Neuroimmunology Group (M.N.), Paediatric Research Institute "Città della Speranza," Padova, Italy; Department of Paediatrics (T.T.), Neurology Service, KK Women's and Children's Hospital, Singapore; School of Biomedical Engineering & Imaging Sciences (M.E.), King's College London; Children's Neurosciences (M.E.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, United Kingdom; Department of Pediatric Neurology (B.A.), Hacettepe University, Ankara, Turkey; Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona; Pediatric Neuroimmunology Unit (T.A.), Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Spain; Alberta Children's Hospital Research Institute (S.M.B.), Department of Pediatrics, Cumming School of Medicine, University of Calgary; Division of Rheumatology (T.C.), Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada; Assistance Publique-Hôpitaux de Paris (K.D.), Pediatric Neurology Department, University Hospitals Paris Saclay, Bicêtre Hospital, France; French Reference Network of Rare Inflammatory Brain and Spinal Diseases (K.D.), Le Kremlin Bicêtre, France and European Reference Network-RITA; Departments of Neurology and Pediatrics (W.G.), Stanford University and Lucile Packard Children's Hospital, Palo Alto, CA; Division of Pediatric Neurology (G.G.), Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, GA; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Neuroinflammation (Y.H.), Queen Square MS Centre, UCL Institute of Neurology, University College London; Department of Paediatric Neurology (Y.H.), Great Ormond Street Hospital for Children, London, United Kingdom; Department of Pediatrics (Y.J.), Peking University First Hospital, Beijing, China; Department of Pediatrics (B.C.L.), Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, South Korea; Department of Pediatrics (E.M.), Section Rheumatology, Co-appointment in the Section of Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston; Division of Paediatric Neurology (A.N.), Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town; Faculty of Health Sciences (A.N.), University of Cape Town Neuroscience Institute, South Africa; Department of Neurology (R.N.), Erasmus Medical Center, Rotterdam, the Netherlands; Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany; Department of Brain and Neural Science (H.S.), Tokyo Metropolitan Institute of Medical Science, Japan; Department of Pediatrics (Neurology Division) (S.S.), Lady Hardinge Medical College and Associated Kalawati Saran Children's Hospital, New Delhi, India; Department of Neurology (S.N.T.), National Pediatric Hospital Dr. J. Garrahan, Buenos Aires, Argentina; Department of Pediatrics (H.A.V.M.), Duke University, Durham, NC; Department of Neurology (E.W.), Children's National Medical Center, Washington, DC; Neuropaediatric Unit (R.W.), Karolinska University Hospital, Stockholm, Sweden; Department of Neurology (A.K.Y.), Icahn School of Medicine at Mount Sinai, New York; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, United Kingdom; Neuroimmunology Program (J.D.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, University of Barcelona, Spain; Department of Neurology (J.D.), University of Pennsylvania, Philadelphia; Institució Catalana de Recerca i Estudis Avançats (ICREA) (J.D.), Barcelona, Spain; Children's Neurosciences (M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust; King's Health Partners Academic Health Science Centre (M.L.); Faculty of Life Sciences and Medicine (M.L.), King's College Hospital, United Kingdom; and Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia.
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Ye F, Fan C, Peng M, Liu S, Yu Y, Yang L. Anti-IgLON5 disease in a pediatric patient with Langerhans cell histiocytosis. Clin Chim Acta 2021; 521:212-214. [PMID: 34270954 DOI: 10.1016/j.cca.2021.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/23/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Anti-IgLON5 disease is a rare autoimmune disease of the central nervous system. Different from the previous autoimmune encephalitis, the disease is a chronic progressive disease characterized by abnormal sleep, sleep apnea and motor disorders, which is prone to misdiagnosis and missed diagnosis. METHODS We report a unique case of anti-IgLON5 disease in a pediatric patient with Langerhans cell histiocytosis (LCH). He gradually developed increased muscle tone and nystagmus during chemotherapy and showed signs of meningeal enhancement on cranial imaging. Due to insufficient evidence of LCH invasion of the central nervous system, the presence of autoimmune encephalitis-related antibodies was investigated by using cell-based assay (CBA) experiment in indirect immuno-fluorescence assay (IFA). RESULTS Clinical manifestations of sleep disorders and motor disorders, plus the presence of IgLON5 IgG antibodies (1:30) in the serum leading to a confirmed diagnosis of anti-IgLON5 disease. CONCLUSION Anti-IgLON5 disease is rare and almost no cases of children have been reported. In view of the difficult to recognize symptoms in pediatric patients, especially those with other comorbidities. Clinicians should raise their awareness of this disease and pay attention to the detection of autoimmune antibodies.
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Affiliation(s)
- Fanghua Ye
- Department of Pediatrics, Xiangya Hospital Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Chenying Fan
- Department of Pediatrics, Xiangya Hospital Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Min Peng
- Department of Pediatrics, Xiangya Hospital Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Siqin Liu
- Department of Pediatrics, Xiangya Hospital Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Yan Yu
- Department of Pediatrics, Xiangya Hospital Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Liangchun Yang
- Department of Pediatrics, Xiangya Hospital Central South University, Changsha, Hunan 410008, People's Republic of China.
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Reyes NGD, Espiritu AI, Agabao JF, Abejero JEE, Salonga-Quimpo RAM, Cabral-Lim LI, Jamora RDG, Pascual V JLR, Fernandez MLL, Gosiengfiao KTP. Autoimmune encephalitis in a tertiary hospital in the Philippines. J Clin Neurosci 2021; 90:191-198. [PMID: 34275548 DOI: 10.1016/j.jocn.2021.05.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/08/2020] [Accepted: 05/23/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Autoimmune encephalitis (AE) is an emerging disorder in adults and children. Due to its potentially reversible nature, prompt recognition and intervention are of utmost importance. OBJECTIVE To describe the clinical and paraclinical features, as well as treatment outcomes of patients with AE admitted in a Philippine tertiary hospital. METHODS Retrospective case series of patients with definite AE. RESULTS Eighteen (18) patients were included (12 adults, 6 children), majority of whom had anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis. The median age of onset was 32 (IQR: 10.8) years old and 13 (IQR: 4.8) years old in the adult and pediatric population, respectively. In both age groups, most presented with psychiatric symptoms and normal imaging findings. Cerebrospinal fluid (CSF) pleocytosis was detected in 8/12 (66.7%) adults and 2/6 (33.3%) children, while CSF protein elevation was only seen in 6/12 (50%) adults. Most patients presented with seizures, and the most frequent electroencephalography (EEG) abnormality detected was slow activity (70.5%). A high proportion of patients received high dose steroids, alone (35.3%) or in combination with intravenous immunoglobulin (IVIG, 52.9%). Overall, 66.7% had improved outcomes, mostly seen in the pediatric population. CONCLUSION This study highlighted the broad clinical phenotype, as well as the similarities and differences of AE manifestations in adults and children. It demonstrated the limited but supportive role of laboratory investigations in the diagnosis of AE. It also underscored the importance of early intervention in AE and highlighted factors influencing treatment practices and discharge outcomes in the local setting.
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Affiliation(s)
- Nikolai Gil D Reyes
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines.
| | - Adrian I Espiritu
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines; Department of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila, Philippines.
| | - Jerson F Agabao
- Division of Pediatric Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Joshua Emmanuel E Abejero
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Rhea Angela M Salonga-Quimpo
- Division of Pediatric Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Leonor I Cabral-Lim
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Roland Dominic G Jamora
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines.
| | - Jose Leonard R Pascual V
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Marc Laurence L Fernandez
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Katerina Tanya P Gosiengfiao
- Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
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25
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Adams AV, Van Mater H, Gallentine W, Mooneyham GC. Psychiatric Phenotypes of Pediatric Patients With Seropositive Autoimmune Encephalitis. Hosp Pediatr 2021; 11:743-750. [PMID: 34103402 DOI: 10.1542/hpeds.2020-005298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Patients with autoimmune encephalitis (AE) often present with symptoms that are broadly characterized as psychiatric or behavioral, yet little attention is given to the precise symptomatology observed. We sought to more fully define the psychiatric symptoms observed in patients with anti-N-methyl-D-aspartate receptor (NMDAR), anti-glutamic-acid-decarboxylase 65 (GAD65), and anti-voltage-gated-potassium-channel complex (VGKC) antibody-mediated AE using the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition nomenclature. METHODS We present a case series (n = 25) using a retrospective chart review of 225 patients evaluated for AE in a tertiary care academic medical center between 2014 and 2018. The included patients were ≤18 years old with anti-NMDAR AE (n = 13), anti-GAD65 AE (n = 7), or anti-VGKC AE (n = 5). The frequency of neuropsychiatric symptoms present at the onset of illness and time to diagnosis were compared across groups. RESULTS Psychiatric symptoms were seen in 92% of patients in our cohort. Depressive features (72%), personality change (64%), psychosis (48%), and catatonia (32%) were the most common psychiatric symptoms exhibited. On average, patients experienced impairment in ≥4 of 7 symptom domains. No patients had isolated psychiatric symptoms. The average times to diagnosis were 1.7, 15.5, and 12.4 months for anti-NMDAR AE, anti-GAD65 AE, and anti-VGKC AE, respectively (P < .001). CONCLUSIONS The psychiatric phenotype of AE in children is highly heterogenous. Involving psychiatry consultation services can be helpful in differentiating features of psychosis and catatonia, which may otherwise be misidentified. Patients presenting with psychiatric symptoms along with impairments in other domains should prompt a workup for AE, including testing for all known antineuronal antibodies.
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Affiliation(s)
- Ashley V Adams
- Department of Pediatrics, The Warren Alpert Medical School, Brown University, Providence, Rhode Island .,School of Medicine, Duke University, Durham, North Carolina
| | | | - William Gallentine
- Department of Pediatrics, Stanford Medicine, Stanford University, Stanford, California
| | - GenaLynne C Mooneyham
- School of Medicine, Duke University, Durham, North Carolina.,Departments of Pediatrics.,Psychiatry and Behavioral Sciences
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26
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Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort. J Immunol Res 2021; 2021:6666117. [PMID: 34056010 PMCID: PMC8131150 DOI: 10.1155/2021/6666117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 04/18/2021] [Accepted: 05/03/2021] [Indexed: 01/02/2023] Open
Abstract
Background Autoimmune encephalitis (AE) is a rapidly progressive encephalopathy caused by antibodies targeting neurons in the central nervous system generating specific immune responses. It is increasingly recognized in children. Objective To describe clinical, neuroimaging, and laboratory features, treatment, and outcome in a cohort of Tunisian children with AE. Methods We conducted a retrospective review of the medical records of all children attending the Department of Child and Adolescent Neurology (Tunis) with autoimmune encephalitis between 2004 and 2020. Clinical, neuroimaging, laboratory features, therapeutic data, and outcome were analyzed. Results Nineteen children were included in the study (12 girls and 7 boys). The median age at diagnosis was 7.68 years (range: 10 months-13 years). The most frequent manifestations were seizures and behavioral disorders. Eleven cases were diagnosed with anti-NMDA receptor encephalitis, 4 cases with anti-Ma2 encephalitis, 3 cases with anti-GAD encephalitis, and 1 case with anti-SOX1 encephalitis. Brain MRI showed increased T2 and fluid-attenuated inversion recovery (FLAIR) signal of the temporal lobe in 5 patients. Eighteen patients showed improvement following first-line immunotherapy (high-dose corticosteroids, intravenous immunoglobulin). One patient with anti-GAD encephalitis died despite escalating immunotherapy. Conclusion Diagnosis of autoimmune encephalitis is challenging in children, because of misleading presentations. An early and accurate diagnosis is important to enable proper therapeutic interventions.
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27
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Hutchinson ML, Yeshokumar AK, Armangue T. Antibody-Mediated Encephalitis in Children: Focus on Diagnostic Clues and Acute Symptom Management. Semin Pediatr Neurol 2021; 37:100873. [PMID: 33892846 DOI: 10.1016/j.spen.2021.100873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 01/18/2023]
Abstract
Antibody-mediated encephalitis is a treatable cause of encephalitis that manifests over days to weeks as changes in behavior and cognition, seizures, movement disorders, and autonomic dysfunction. Patients with autoimmune encephalitis develop a variety of symptoms. As such, they require a multidisciplinary approach to care. In this review we summarize the clinical presentation and practical diagnostic approach to pediatric autoimmune encephalitis, review treatments of the autoimmune process, and discuss the management of the acute symptoms encountered in children.
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Affiliation(s)
| | - Anusha K Yeshokumar
- Departments of Neurology and Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Thaís Armangue
- Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; Pediatric Neuroimmunology Unit, Neurology Department, Sant Joan de Déu (SJD) Children's Hospital, University of Barcelona, Barcelona, Spain
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28
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McGetrick ME, Varughese NA, Miles DK, Wang CX, McCreary M, Monson NL, Greenberg BM. Clinical Features, Treatment Strategies, and Outcomes in Hospitalized Children With Immune-Mediated Encephalopathies. Pediatr Neurol 2021; 116:20-26. [PMID: 33388545 DOI: 10.1016/j.pediatrneurol.2020.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Autoimmune encephalitis (AE) and acute disseminated encephalomyelitis (ADEM) are immune-mediated brain conditions that can cause substantial neurological sequalae. Data describing the clinical characteristics, treatments, and neurological outcomes for these conditions are needed. METHODS This is a single-center retrospective review of children diagnosed with AE or ADEM over a nine-year period with discharge outcomes measured by the Modified Rankin Score. RESULTS Seventy-five patients (23 with ADEM and 52 with AE) were identified. Patients with ADEM had a higher percentage of abnormal magnetic resonance imaging findings (100% vs 60.8%; P < 0.001) and a shorter time from symptom onset to diagnosis (6 vs 14 days; P = 0.024). Oligoclonal bands and serum and cerebrospinal fluid inflammatory indices were higher in patients with AE. Nearly all patients received corticosteroids followed by plasmapheresis or intravenous immunoglobulin, and treatment strategies did not differ significantly between groups. Second-line immune therapies were commonly used in patients with AE. Finally, patients with AE had trends toward longer hospital lengths of stay (21 vs 13 days) and a higher percentage of neurological disability at hospital discharge (59.6% vs 34.8%). CONCLUSIONS Although patients with ADEM and AE may have similar presenting symptoms, we found significant differences in the frequency of imaging findings, symptom duration, and laboratory and cerebrospinal fluid profiles, which can assist in distinguishing between the diagnoses. Patients in both groups were treated with a combination of immunomodulating therapies, and neurological disability was common at hospital discharge.
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Affiliation(s)
- Molly E McGetrick
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Natasha A Varughese
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Darryl K Miles
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Cynthia X Wang
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Morgan McCreary
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Nancy L Monson
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Benjamin M Greenberg
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas
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29
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Ferrafiat V, Riquin E, Freri E, Granata T, Nardocci N, Medjkane F, Corfiotti C, Tozzo A, Pellerin H, Benarous X, Haroche J, Amoura Z, Duverger P, Jardri R, Gerardin P, Cohen D, Consoli A, Raffin M. Psychiatric autoimmune conditions in children and adolescents: Is catatonia a severity marker? Prog Neuropsychopharmacol Biol Psychiatry 2021; 104:110028. [PMID: 32619473 DOI: 10.1016/j.pnpbp.2020.110028] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/11/2020] [Accepted: 06/21/2020] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Patients with autoimmune encephalitis (AE) are likely to exhibit an acute onset of severe psychiatric features, including psychosis and/or catatonia. Based on the high prevalence of catatonia in AE and our clinical experience, we hypothesized that catatonia might be a marker of severity requiring more aggressive treatment approaches. METHODS To reach a sufficient number of cases with brain-autoimmune conditions, we pooled two samples (N = 58): the first from the French National Network of Rare Psychiatric diseases and the second from the largest Italian neuro-pediatrics center for encephalopathies. Autoimmune conditions were diagnosed using a multidisciplinary approach and numerous paraclinical investigations. We retrospectively compared patients with and without catatonia for psychiatric and non-psychiatric clinical features, biological and imaging assessments, type of immunotherapy used and outcomes. RESULTS The sample included 25 patients (43%) with catatonia and 33 (57%) without catatonia. Forty-two patients (72.4%) had a definite AE (including 27 anti-NMDA receptor encephalitis) and 16 (27.6%) suspected autoimmune encephalitis. Patients with catatonia showed significantly more psychotic features [18 (72%) vs 9 (27.3%), p < 0.001)] and more movement disorders [25 (100%) vs 20 (60.6%), p < 0.001] than patients without catatonia. First line (corticoids, immunoglobulin and plasma exchanges) and second line (e.g., rituximab) therapies were more effective in patients with catatonia, with 24 (96%) vs 22 (66.7%) (p = 0.006) and 17 (68%) vs 9 (27.3%) (p = 0.002), respectively. However, those with catatonia received more combinations of first and second line treatments and had more relapses during outcomes. CONCLUSION Despite its exploratory design, the study supports the idea that autoimmune catatonia may be a marker of severity and morbidity in terms of initial presentation and relapses, requiring the need for early and aggressive treatment.
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Affiliation(s)
- Vladimir Ferrafiat
- Department of Child and Adolescent Psychiatry, Sorbonne Université, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France; Department of Child and Adolescent Psychiatry, Université de Rouen, Hôpital Charles Nicolle, 1 rue de Germont, 76000 Rouen, France.
| | - Elise Riquin
- Department of Child and Adolescent Psychiatry, Hôpital Universitaire d'Angers, 4 Rue Larrey, 49100 Angers, France
| | - Elena Freri
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133 Milan, Italy
| | - Tiziana Granata
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133 Milan, Italy
| | - Nardo Nardocci
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133 Milan, Italy
| | - François Medjkane
- Department of Child and Adolescent Psychiatry, Université Lille Nord de France, CHRU de Lille, F-59037 Lille Cedex, France
| | - Claire Corfiotti
- Department of Child and Adolescent Psychiatry, Université Lille Nord de France, CHRU de Lille, F-59037 Lille Cedex, France
| | - Alessandra Tozzo
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133 Milan, Italy
| | - Huges Pellerin
- Department of Child and Adolescent Psychiatry, Sorbonne Université, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Xavier Benarous
- Department of Child and Adolescent Psychiatry, Sorbonne Université, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Julien Haroche
- French National Reference Center for Rare Systemic AutoImmune Disorders, E3M Institute, Université Pierre et Marie Curie, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Zahir Amoura
- French National Reference Center for Rare Systemic AutoImmune Disorders, E3M Institute, Université Pierre et Marie Curie, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Philippe Duverger
- Department of Child and Adolescent Psychiatry, Hôpital Universitaire d'Angers, 4 Rue Larrey, 49100 Angers, France
| | - Renaud Jardri
- Department of Child and Adolescent Psychiatry, Université Lille Nord de France, CHRU de Lille, F-59037 Lille Cedex, France
| | - Priscille Gerardin
- Department of Child and Adolescent Psychiatry, Université de Rouen, Hôpital Charles Nicolle, 1 rue de Germont, 76000 Rouen, France
| | - David Cohen
- Department of Child and Adolescent Psychiatry, Sorbonne Université, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France; CNRS UMR 7222, Institut des Systèmes Intelligents et Robotiques, Université Pierre et Marie Curie, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Angèle Consoli
- Department of Child and Adolescent Psychiatry, Sorbonne Université, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France; GRC 15 PSYDEV. Troubles psychiatriques et développement. Sorbonne Université, Paris, France
| | - Marie Raffin
- Department of Child and Adolescent Psychiatry, Sorbonne Université, Hôpital Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France; GRC 15 PSYDEV. Troubles psychiatriques et développement. Sorbonne Université, Paris, France
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30
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Lim YXJ, Kwek SY, How CH, Chan WSD. A clinical approach to encephalopathy in children. Singapore Med J 2021; 61:626-632. [PMID: 33415341 DOI: 10.11622/smedj.2020176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yi Xiu Jocelyn Lim
- Neurology Service, Department of Paediatric Medicine, KK Women's and Children's Hospital, Singapore
| | | | - Choon How How
- Care and Health Integration Division, Changi General Hospital, Singapore
| | - Wei Shih Derrick Chan
- Neurology Service, Department of Paediatric Medicine, KK Women's and Children's Hospital, Singapore
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31
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Mooneyham GC, Ferrafiat V, Stolte E, Fuchs DC, Cohen D. Developing Consensus in the Assessment and Treatment Pathways for Autoimmune Encephalitis in Child and Adolescent Psychiatry. Front Psychiatry 2021; 12:638901. [PMID: 33854451 PMCID: PMC8039450 DOI: 10.3389/fpsyt.2021.638901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/16/2021] [Indexed: 12/17/2022] Open
Abstract
Children with a diagnosis of Autoimmune Encephalitis (AE) frequently require multi-disciplinary care in order to mobilize the assessment and treatment necessary for recovery. Institutional and provider practice differences often influence the diagnostic workup and treatment pathways made available to patients. There are a variety of provider coalitions in pediatric rheumatology, internal medicine, and neurology that have been making meaningful progress toward the development of consensus in assessment and treatment approaches to patient care. However, child psychiatry is currently underrepresented in this work in spite of the high psychiatric symptom burden seen in some young patients. The need for consensus is often made visible only with inter-institutional dialogue regarding patient care trajectories. We aim to review key updates in the assessment and treatment of children and adolescents with autoimmune encephalitis during the acute phase, with or without catatonia, and to outline provider perspectives by comparing current treatment models in the United States, Canada, and Europe.
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Affiliation(s)
- GenaLynne C Mooneyham
- National Institutes of Health, National Institute of Mental Health, Bethesda, MD, United States
| | - Vladimir Ferrafiat
- Child and Adolescent Psychiatric Unit, URHEA, CHSR Sotteville les Rouen, Rouen, France.,Department of Child and Adolescent Psychiatry, CHU Charles Nicolle, Rouen, France
| | - Erin Stolte
- Department of Psychiatry, University of Alberta, Edmonton, AB, Canada
| | - D Catherine Fuchs
- Division of Child and Adolescent Psychiatry, Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - David Cohen
- Department of Child and Adolescent Psychiatry, Hôpital Pitié-Salpêtrière, AP-HP, Sorbonne Université, Paris, France.,CNRS UMR 7222, Hôpital Pitié-Salpêtrière, AP-HP, Institut des Systèmes Intelligents et Robotiques, Université Pierre et Marie Curie, Paris, France
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32
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Lee S, Kim HD, Lee JS, Kang HC, Kim SH. Clinical Features and Treatment Outcomes of Seronegative Pediatric Autoimmune Encephalitis. J Clin Neurol 2021; 17:300-306. [PMID: 33835752 PMCID: PMC8053533 DOI: 10.3988/jcn.2021.17.2.300] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/28/2021] [Accepted: 01/28/2021] [Indexed: 12/12/2022] Open
Abstract
Background and Purpose New diagnostic criteria for pediatric autoimmune encephalitis (AIE) have been introduced recently. A substantial proportion of cases of pediatric AIE are diagnosed as seronegative based on these criteria, and so the clinical characteristics of this group remain to be investigated. Methods This study included 46 pediatric patients younger than 18 years with suspected AIE. Clinical features, laboratory or radiological findings, and treatment outcomes were compared between seronegative and seropositive patients. Results Nine (19.6%) of the 46 patients were diagnosed as seropositive AIE. All of the patients with seropositive AIE had anti-N-methyl-D-aspartate receptor antibodies. Commonly identified neuropsychiatric symptoms were altered mental status, cognitive dysfunction, seizure, speech dysfunction, and psychotic disorder in both the seronegative and seropositive groups. Immunotherapy produced favorable treatment outcomes in both the seropositive (n=7, 77.8%) and seronegative (n=35, 94.6%) AIE patients. Treatment outcomes for first-line immunotherapy were better in seronegative AIE than seropositive AIE patients (p=0.003), and hence a smaller proportion of seronegative patients required second-line treatment (p=0.015). Conclusions Pediatric seronegative AIE patients showed clinical presentations similar to those of seropositive AIE patients, with favorable treatment outcomes after immunotherapy.
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Affiliation(s)
- Sangbo Lee
- Division of Pediatric Neurology, Epilepsy Research Institute, Severance Children's Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Heung Dong Kim
- Division of Pediatric Neurology, Epilepsy Research Institute, Severance Children's Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Soo Lee
- Division of Pediatric Neurology, Epilepsy Research Institute, Severance Children's Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Hoon Chul Kang
- Division of Pediatric Neurology, Epilepsy Research Institute, Severance Children's Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.
| | - Se Hee Kim
- Division of Pediatric Neurology, Epilepsy Research Institute, Severance Children's Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.
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33
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Yang S, Yang L, Liao H, Chen M, Feng M, Liu S, Tan L. Clinical Characteristics and Prognostic Factors of Children With Anti-N-Methyl-D-Aspartate Receptor Encephalitis. Front Pediatr 2021; 9:605042. [PMID: 33968840 PMCID: PMC8100243 DOI: 10.3389/fped.2021.605042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 03/23/2021] [Indexed: 12/24/2022] Open
Abstract
Objective: Anti-N-methyl-D-aspartate (anti-NMDA) receptor encephalitis is the most common autoimmune encephalitis in pediatric patients. The study aimed to investigate the clinical characteristics and prognostic factors of anti-NMDA receptor encephalitis in children in South China. Methods: This was a retrospective study of children diagnosed with anti-NMDA receptor encephalitis between 01/2014 and 12/2017 at Hunan Children's Hospital. Laboratory, brain magnetic resonance imaging (MRI), and electroencephalography data were collected. The short-term (6-month) outcomes were assessed using the Liverpool score by the same pediatric neurologist. The children were divided into good (scores 4-5) and poor (score <3) clinical outcomes. Results: Among the 51 patients, 21 (41.2%) were male. The most common clinical symptoms were dyskinesia (88.2%), personality change (84.3%), seizure (82.4%), and cognitive disorder (31.4%). Two were transferred to another hospital, 45 (91.8%) received intravenous immunoglobulins, 41 (83.7%) received methylprednisolone, and 8 (16.3%) received plasma exchange. Eight (16.3%) received rituximab for second-line treatment, six after intravenous immunoglobulin and methylprednisolone treatment, and two after plasma exchange therapy failed. Seven were lost to follow-up. The short-term outcome was good in 23 patients. Cognitive disorder [odds ratio (OR): 23.97, 95% confidence interval (CI): 1.12-513.30, P = 0.042) and abnormal brain MRI (OR: 14.29, 95% CI: 1.36-150.10, P = 0.027] were independently associated with a poor short-term outcome after adjustment for age, GCS, and rituximab use. Conclusions: MRI abnormalities and cognitive disorders are independently associated with poor short-term outcomes in children with anti-NMDA receptor encephalitis. The use of rituximab is not associated with the 6-month outcomes.
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Affiliation(s)
- Sai Yang
- Department of Neurology, Hunan Children's Hospital, Changsha, China
| | - Liming Yang
- Department of Neurology, Hunan Children's Hospital, Changsha, China
| | - Hongmei Liao
- Department of Neurology, Hunan Children's Hospital, Changsha, China
| | - Mei Chen
- Department of Neurology, Hunan Children's Hospital, Changsha, China
| | - Mei Feng
- Department of Neurology, Hunan Children's Hospital, Changsha, China
| | - Shulei Liu
- Department of Neurology, Hunan Children's Hospital, Changsha, China
| | - Lihong Tan
- Department of Neurology, Hunan Children's Hospital, Changsha, China
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34
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Kao YC, Lin MI, Weng WC, Lee WT. Neuropsychiatric Disorders Due to Limbic Encephalitis: Immunologic Aspect. Int J Mol Sci 2020; 22:ijms22010389. [PMID: 33396564 PMCID: PMC7795533 DOI: 10.3390/ijms22010389] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 12/16/2022] Open
Abstract
Limbic encephalitis (LE) is a rare cause of encephalitis presenting as an acute and subacute onset of neuropsychiatric manifestations, particularly with memory deficits and confusion as core features, along with seizure occurrence, movement disorders, or autonomic dysfunctions. LE is caused by neuronal antibodies targeting the cellular surface, synaptic, and intracellular antigens, which alter the synaptic transmission, especially in the limbic area. Immunologic mechanisms involve antibodies, complements, or T-cell-mediated immune responses in different degree according to different autoantibodies. Sensitive cerebrospinal fluid markers of LE are unavailable, and radiographic findings may not reveal a typical mesiotemporal involvement at neurologic presentations; therefore, a high clinical index of suspicions is pivotal, and a neuronal antibody testing is necessary to make early diagnosis. Some patients have concomitant tumors, causing paraneoplastic LE; therefore, tumor survey and treatment are required in addition to immunotherapy. In this study, a review on the molecular and immunologic aspects of LE was conducted to gain awareness of its peculiarity, which we found quite different from our knowledge on traditional psychiatric illness.
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Affiliation(s)
- Yu-Chia Kao
- Department of Pediatrics, E-Da Hospital, Kaohsiung 82445, Taiwan;
| | - Ming-I Lin
- Department of Pediatrics, Shin Kong Wu Ho-Su Memorial Hospital, Taipei 11101, Taiwan;
| | - Wen-Chin Weng
- Department of Pediatrics, National Taiwan University Hospital, Taipei 100226, Taiwan;
- Department of Pediatrics, National Taiwan University College of Medicine, Taipei 100233, Taiwan
| | - Wang-Tso Lee
- Department of Pediatrics, National Taiwan University Hospital, Taipei 100226, Taiwan;
- Department of Pediatrics, National Taiwan University College of Medicine, Taipei 100233, Taiwan
- Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei 100233, Taiwan
- Correspondence: ; Tel.: +886-2-23123456 (ext. 71545); Fax: +886-2-23147450
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35
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Pilli D, Zou A, Dawes R, Lopez JA, Tea F, Liyanage G, Lee FX, Merheb V, Houston SD, Pillay A, Jones HF, Ramanathan S, Mohammad S, Kelleher AD, Alexander SI, Dale RC, Brilot F. Pro-inflammatory dopamine-2 receptor-specific T cells in paediatric movement and psychiatric disorders. Clin Transl Immunology 2020; 9:e1229. [PMID: 33425355 PMCID: PMC7780098 DOI: 10.1002/cti2.1229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/09/2020] [Accepted: 11/29/2020] [Indexed: 12/13/2022] Open
Abstract
Objectives A dysregulated inflammatory response against the dopamine‐2 receptor (D2R) has been implicated in movement and psychiatric disorders. D2R antibodies were previously reported in a subset of these patients; however, the role of T cells in these disorders remains unknown. Our objective was to identify and characterise pro‐inflammatory D2R‐specific T cells in movement and psychiatric disorders. Methods Blood from paediatric patients with movement and psychiatric disorders of suspected autoimmune and neurodevelopmental aetiology (n = 24) and controls (n = 16) was cultured in vitro with a human D2R peptide library, and D2R‐specific T cells were identified by flow cytometric quantification of CD4+CD25+CD134+ T cells. Cytokine secretion was analysed using a cytometric bead array and ELISA. HLA genotypes were examined in D2R‐specific T‐cell‐positive patients. D2R antibody seropositivity was determined using a flow cytometry live cell‐based assay. Results Three immunodominant regions of D2R, amino acid (aa)121–131, aa171–181 and aa396–416, specifically activated CD4+ T cells in 8/24 patients. Peptides corresponding to these regions were predicted to bind with high affinity to the HLA of the eight positive patients and had also elicited the secretion of pro‐inflammatory cytokines IL‐2, IFN‐ γ, TNF, IL‐6, IL‐17A and IL‐17F. All eight patients were seronegative for D2R antibodies. Conclusion Autoreactive D2R‐specific T cells and a pro‐inflammatory Th1 and Th17 cytokine profile characterise a subset of paediatric patients with movement and psychiatric disorders, further underpinning the theory of immune dysregulation in these disorders. These findings offer new perspectives into the neuroinflammatory mechanisms of movement and psychiatric disorders and can influence patient diagnosis and treatment.
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Affiliation(s)
- Deepti Pilli
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Alicia Zou
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Ruebena Dawes
- Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia.,Genomic Medicine Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia
| | - Joseph A Lopez
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Fiona Tea
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Ganesha Liyanage
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,School of Medical Sciences Discipline of Applied Medical Science Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Fiona Xz Lee
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia
| | - Vera Merheb
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia
| | - Samuel D Houston
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,School of Biomedical Engineering The University of Sydney Sydney NSW Australia
| | - Aleha Pillay
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia
| | - Hannah F Jones
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Sudarshini Ramanathan
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | - Shekeeb Mohammad
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia
| | | | - Stephen I Alexander
- Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia.,Centre for Kidney Research Children's Hospital at Westmead Sydney NSW Australia
| | - Russell C Dale
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia.,Brain and Mind Centre The University of Sydney Sydney NSW Australia
| | - Fabienne Brilot
- Brain Autoimmunity Group Kids Neuroscience Centre Kids Research at the Children's Hospital at Westmead Sydney NSW Australia.,Discipline of Child and Adolescent Health Faculty of Medicine and Health The University of Sydney Sydney NSW Australia.,School of Medical Sciences Discipline of Applied Medical Science Faculty of Medicine and Health The University of Sydney Sydney NSW Australia.,Brain and Mind Centre The University of Sydney Sydney NSW Australia
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36
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Symonds JD, Moloney TC, Lang B, McLellan A, O'Regan ME, MacLeod S, Jollands A, Vincent A, Kirkpatrick M, Brunklaus A, Shetty J, Dorris L, Forbes K, Abu-Arafeh I, Andrew J, Brink P, Callaghan M, Cruden J, Findlay C, Grattan R, MacDonnell J, McKnight J, Morrison CA, Nairn L, Pilley E, Stephen E, Thomsen S, Webb A, Wilson M, Zuberi SM. Neuronal antibody prevalence in children with seizures under 3 years: A prospective national cohort. Neurology 2020; 95:e1590-e1598. [PMID: 32690789 DOI: 10.1212/wnl.0000000000010318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 03/30/2020] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To report the prevalence of anti-neuronal antibodies in a prospective whole-nation cohort of children presenting with seizures before their third birthday. METHODS This was a prospective population-based national cohort study involving all children presenting with new-onset epilepsy or complex febrile seizures before their third birthday over a 3-year period. Patients with previously identified structural, metabolic, or infectious cause for seizures were excluded. Serum samples were obtained at first presentation and tested for 7 neuronal antibodies using live cell-based assays. Clinical data were collected with structured proformas at recruitment and 24 months after presentation. In addition, patients with seizures and clinically suspected autoimmune encephalitis were independently identified by a review of the case records of all children <3 years of age in Scotland who had undergone EEG. RESULTS Two hundred ninety-eight patients were identified and recruited and underwent autoantibody testing. Antibody positivity was identified in 18 of 298 (6.0%). The antibodies identified were GABA receptor B (n = 8, 2.7%), contactin-associated protein 2 (n = 4, 1.3%), glycine receptor (n = 3, 1.0%), leucine-rich glioma inactivated 1 (n = 2, 0.7%), NMDA receptor (n = 1, 0.3%), and GABA receptor A (n = 1, 0.3%). None of these patients had a clinical picture of autoimmune encephalitis. Seizure classification and clinical phenotype did not correlate with antibody positivity. CONCLUSIONS Autoimmune encephalitis is very rare in early childhood. However serum neuronal antibodies are identified in 6.4% of children presenting with seizures at <3 years of age. Antibody testing should not be a routine clinical test in early childhood-onset epilepsy because, in the absence of other features of autoimmune encephalitis, antibody positivity is of doubtful clinical significance. Antibody testing should be reserved for patients with additional features of encephalitis.
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Affiliation(s)
- Joseph D Symonds
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Teresa C Moloney
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Bethan Lang
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Ailsa McLellan
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Mary E O'Regan
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Stewart MacLeod
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Alice Jollands
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Angela Vincent
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Martin Kirkpatrick
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Andreas Brunklaus
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Jayakara Shetty
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Liam Dorris
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Kirsten Forbes
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Ishaq Abu-Arafeh
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Jamie Andrew
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Philip Brink
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Mary Callaghan
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Jamie Cruden
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Christine Findlay
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Rosemary Grattan
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Jane MacDonnell
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Jean McKnight
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Calum A Morrison
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Lesley Nairn
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Elizabeth Pilley
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Elma Stephen
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Selina Thomsen
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Alan Webb
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Margaret Wilson
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK
| | - Sameer M Zuberi
- From the Paediatric Neurosciences Research Group (J.D.S., M.E.O., S.M., A.B., L.D., M.W., S.M.Z.), Royal Hospital for Children; College of Medical, Veterinary & Life Sciences (J.D.S., A.B., L.D., S.M.Z.), University of Glasgow; Nuffield Department of Clinical Neurosciences (T.C.M., B.L., A.V., S.T.), John Radcliffe Hospital, Oxford; Department of Paediatric Neurosciences (A.M., J.S.), Royal Hospital for Sick Children, Edinburgh; Paediatric Neurology (A.J., M.K., P.B., E.P.), Tayside Children's Hospital, Dundee; Neuroradiology (K.F.), Queen Elizabeth University Hospitals, Glasgow; Department of Paediatrics (I.A.-A., R.G.), Forth Valley Royal Hospital, Larbert; Department of Paediatrics (J.A., M.C.), University Hospital Wishaw; Department of Paediatrics (J.C.), Victoria Hospital, Kirkcaldy; Department of Paediatrics (C.F., C.A.M.), University Hospital Crosshouse, Kilmarnock; Department of Paediatrics (J. MacDonnell), Borders General Hospital, Melrose; Department of Paediatrics (J. McKnight), Dumfries and Galloway Royal Infirmary; Department of Paediatrics (L.N.), Royal Alexandra Hospital, Paisley; Paediatric Neurology (E.S.), Royal Aberdeen Children's Hospital; and Department of Paediatrics (A.W.), Raigmore Hospital, Inverness, UK.
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Dai X, Kuang L, Feng L, Yi X, Tang W, Liao Q, Long X, Wang J, Li J, Yang H, Xiao B, Li G, Chen S. Anti-Dopamine Receptor 2 Antibody-Positive Encephalitis in Adolescent. Front Neurol 2020; 11:471. [PMID: 32612568 PMCID: PMC7308480 DOI: 10.3389/fneur.2020.00471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/29/2020] [Indexed: 01/11/2023] Open
Abstract
Autoimmune encephalitic syndromes include mutism, somnolence, movement disorder, and behavioral, or psychiatric symptoms. When paired with bilateral basal ganglia lesions on magnetic resonance imaging, these support the diagnosis of basal ganglia encephalitis (BGE). BGE is a rare but distinct entity of putative autoimmune etiology, with specific basal ganglia inflammation and acute movement disorders. A previous study identified dopamine-2 receptors (D2R) antibody to be positive in most BGE children, indicating that the D2R antibody may trigger the downstream pathological process in BGE patients. The highest levels of D2R are found in the striatum, the nucleus accumbens, and the olfactory tubercle. D2R antibody-positive BGE is widely reported in children. Here we present a 17-year-old girl with a typical clinical feature of basal ganglia encephalitis, who benefited from immune therapy.
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Affiliation(s)
- Xuejiao Dai
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,Department of Neurology, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Lilu Kuang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,Department of Neurology, Liuyang Jili Hospital, Changsha, China
| | - Li Feng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoping Yi
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
| | - Weiting Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Qiao Liao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyan Long
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Junling Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Jing Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Huan Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Bo Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Guoliang Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Si Chen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
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Shekunov J, Blacker CJ, Vande Voort JL, Tillema JM, Croarkin PE, Romanowicz M. Immune mediated pediatric encephalitis - need for comprehensive evaluation and consensus guidelines. BMC Neurol 2020; 20:44. [PMID: 32013931 PMCID: PMC6996166 DOI: 10.1186/s12883-020-1605-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 01/08/2020] [Indexed: 01/08/2023] Open
Abstract
Background Autoimmune encephalitis is characterized by neuropsychiatric symptoms associated with brain inflammation. The differential is usually broad and Psychiatry often collaborates with Neurology in diagnostic clarification and symptom management. At least 40% of neuroencephalitis cases are of unknown etiology which adds to difficulties in making the right diagnosis and deciding on the appropriate treatment (Granerod et al., Lancet Infect Dis 10:835-44, 2010). The aim of this case series was to present four cases with complicated psychiatric symptomatology and isolated neurologic signs and symptoms, evaluated at a large tertiary medical center and treated for suspected autoimmune encephalitis, demonstrating the complexity of diagnosis and treatment. Case presentation Four diagnostically challenging and heterogeneous cases displayed clinical symptomatology suggestive of autoimmune encephalitis. All cases presented with neurologic and psychiatric symptoms, but had negative autoantibody panels, normal or inconclusive magnetic resonance imaging results and non-specific cerebrospinal fluid changes. All were challenged with immunosuppressive/immunomodulatory treatments with overall poor response rates. Conclusions There is a heterogeneous presentation of autoimmune encephalitis in pediatric populations. In the absence of positive findings on testing, individuals who do not meet proposed criteria for seronegative encephalitis may be misdiagnosed, and/or may not respond adequately to treatment. In those cases, comprehensive evaluation and stringent application of consensus guidelines is necessary.
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Affiliation(s)
- Julia Shekunov
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | - Caren J Blacker
- Department of Psychiatry and Psychology, Mayo Clinic Health Systems, Austin, MN, USA
| | | | | | - Paul E Croarkin
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
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Powers JH, Mooneyham GC. Psychiatric Symptoms in Pediatric Patients With Myelin-Oligodendrocyte-Glycoprotein-Immunoglobulin G-Antibody Positive Autoimmune Encephalitis: A Case Series. PSYCHOSOMATICS 2020; 61:846-850. [PMID: 31980213 DOI: 10.1016/j.psym.2019.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 10/25/2022]
Affiliation(s)
- James H Powers
- Department of Psychiatry, Duke University School of Medicine, Durham, NC
| | - GenaLynne C Mooneyham
- Department of Psychiatry, Duke University School of Medicine, Durham, NC; Department of Pediatrics, Duke University School of Medicine, Durham, NC.
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40
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Bien CG, Bien CI. Autoimmune encephalitis in children and adolescents. Neurol Res Pract 2020; 2:4. [PMID: 33324910 PMCID: PMC7650092 DOI: 10.1186/s42466-019-0047-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/28/2019] [Indexed: 12/19/2022] Open
Abstract
Background Autoimmune encephalitides with neural and glial antibodies have become an attractive field in neurology because the antibodies are syndrome-specific, explain the pathogenesis, indicate the likelihood of an underlying tumor, and often predict a good response to immunotherapy. The relevance and the management of antibody-associated encephalitides in the pediatric age group are to be discussed. Main body Subacutely evolving, complex neuropsychiatric conditions that are otherwise unexplained should raise the suspicion of autoimmune encephalitis. Determination of autoantibodies is the key diagnostic step. It is recommended to study cerebrospinal fluid and serum in parallel to yield highest diagnostic sensitivity and specificity. The most frequently found antibodies are those against the N-methyl-D-asparate receptor, an antigen on the neural cell surface. The second most frequent antibody is directed against glutamic acid decarboxylase 65 kDa, an intracellular protein, often found in chronic conditions with questionable inflammatory activity. Immunotherapy is the mainstay of treatment in autoimmune encephalitides. Steroids, apheresis and intravenous immunoglobulin are first-line interventions. Rituximab or cyclophosphamide are given as second-line treatments. Patients with surface antibodies usually respond well to immunotherapy whereas cases with antibodies against intracellular antigens most often do not. Conclusion With few exceptions, the experience in adult patients with autoimmune encephalitides can be applied to patients in the pediatric age range.
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Affiliation(s)
- C G Bien
- Epilepsy Center Bethel, Krankenhaus Mara, Maraweg 17-21, 33617 Bielefeld, Germany.,Laboratory Krone, Bad Salzuflen, Germany
| | - C I Bien
- Laboratory Krone, Bad Salzuflen, Germany
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Shimasaki C, Frye RE, Trifiletti R, Cooperstock M, Kaplan G, Melamed I, Greenberg R, Katz A, Fier E, Kem D, Traver D, Dempsey T, Latimer ME, Cross A, Dunn JP, Bentley R, Alvarez K, Reim S, Appleman J. Evaluation of the Cunningham Panel™ in pediatric autoimmune neuropsychiatric disorder associated with streptococcal infection (PANDAS) and pediatric acute-onset neuropsychiatric syndrome (PANS): Changes in antineuronal antibody titers parallel changes in patient symptoms. J Neuroimmunol 2019; 339:577138. [PMID: 31884258 DOI: 10.1016/j.jneuroim.2019.577138] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/28/2019] [Accepted: 12/12/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE This retrospective study examined whether changes in patient pre- and post-treatment symptoms correlated with changes in anti-neuronal autoantibody titers and the neuronal cell stimulation assay in the Cunningham Panel in patients with Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcal Infection (PANDAS), and Pediatric Acute-onset Neuropsychiatric Syndrome (PANS). METHODS In an analysis of all tests consecutively performed in Moleculera Labs' clinical laboratory from April 22, 2013 to December 31, 2016, we identified 206 patients who were prescribed at least one panel prior to and following treatment, and who met the PANDAS/PANS diagnostic criteria. Patient follow-up was performed to collect symptoms and treatment or medical intervention. Of the 206 patients, 58 met the inclusion criteria of providing informed consent/assent and documented pre- and post-treatment symptoms. Clinician and parent-reported symptoms after treatment or medical intervention were categorized as "Improved/Resolved" (n = 34) or "Not-Improved/Worsened" (n = 24). These were analyzed for any association between changes in clinical status and changes in Cunningham panel test results. Clinical assay performance was also evaluated for reproducibility and reliability. RESULTS Comparison of pre- and post-treatment status revealed that the Cunningham Panel results correlated with changes in patient's neuropsychiatric symptoms. Based upon the change in the number of positive tests, the overall accuracy was 86%, the sensitivity and specificity were 88% and 83% respectively, and the Area Under the Curve (AUC) was 93.4%. When evaluated by changes in autoantibody levels, we observed an overall accuracy of 90%, a sensitivity of 88%, a specificity of 92% and an AUC of 95.7%. Assay reproducibility for the calcium/calmodulin-dependent protein kinase II (CaMKII) revealed a correlation coefficient of 0.90 (p < 1.67 × 10-6) and the ELISA assays demonstrated test-retest reproducibility comparable with other ELISA assays. CONCLUSION This study revealed a strong positive association between changes in neuropsychiatric symptoms and changes in the level of anti-neuronal antibodies and antibody-mediated CaMKII human neuronal cell activation. These results suggest there may be clinical utility in monitoring autoantibody levels and stimulatory activity against these five neuronal antigen targets as an aid in the diagnosis and treatment of infection-triggered autoimmune neuropsychiatric disorders. Future prospective studies should examine the feasibility of predicting antimicrobial and immunotherapy responses with the Cunningham Panel.
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Affiliation(s)
- Craig Shimasaki
- Moleculera Labs, Inc., 755 Research Parkway, Suite 410, Oklahoma City, OK 73104, United States of America.
| | - Richard E Frye
- Barrow Neurological Institute, Phoenix Children's Hospital, 1919 East Thomas Rd, Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, United States of America
| | - Rosario Trifiletti
- The PANS/PANDAS Institute, 545 Island Road, Suite 1D, Ramsey, NJ 07446, United States of America
| | - Michael Cooperstock
- Division of Infectious Diseases, University of Missouri School of Medicine, Columbia, MO, United States of America
| | - Gary Kaplan
- The Kaplan Center for Integrative Medicine, 6828 Elm Street, Suite 300, McLean, VA 22101, United States of America
| | - Isaac Melamed
- IMMUNOe Health and Research Centers, 6801 South Yosemite Street, Centennial, CO 80112, United States of America
| | - Rosalie Greenberg
- Medical Arts Psychotherapy Associates, P.A., 33 Overlook Road, Suite 406, Summit, NJ 07901, United States of America
| | - Amiram Katz
- Private Practice Neurology, 325 Boston Post Rd., Suite 1D, Orange, CT 06477, United States of America
| | - Eric Fier
- TherapyWorks ATL, 621 North Avenue NE, Atlanta, GA 30308, United States of America
| | - David Kem
- Section of Endocrinology and Diabetes, University of Oklahoma Department of Medicine, 1000 N Lincoln Blvd., Oklahoma City, OK 73104, United States of America
| | - David Traver
- 1261 E. Hillsdale Blvd., Foster City, CA 94404, United States of America
| | - Tania Dempsey
- Armonk Integrative Medicine, Private Practice, Pediatrics, 99 Business Park Drive, Armonk, NY 10504, United States of America
| | - M Elizabeth Latimer
- Latimer Neurology Center, 1101 30th Street NW Suite #320, Washington, DC 20007, United States of America
| | - Amy Cross
- Moleculera Labs, Inc., 755 Research Parkway, Suite 410, Oklahoma City, OK 73104, United States of America
| | - Joshua P Dunn
- Moleculera Labs, Inc., 755 Research Parkway, Suite 410, Oklahoma City, OK 73104, United States of America
| | - Rebecca Bentley
- Moleculera Labs, Inc., 755 Research Parkway, Suite 410, Oklahoma City, OK 73104, United States of America
| | - Kathy Alvarez
- Moleculera Labs, Inc., 755 Research Parkway, Suite 410, Oklahoma City, OK 73104, United States of America; The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, United States of America
| | - Sean Reim
- The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, United States of America
| | - James Appleman
- Moleculera Labs, Inc., 755 Research Parkway, Suite 410, Oklahoma City, OK 73104, United States of America
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Yılmaz Ü, Edizer S, Songür ÇY, Güzin Y, Durak FS. Atypical presentation of MOG-related disease: Slowly progressive behavioral and personality changes following a seizure. Mult Scler Relat Disord 2019; 36:101394. [PMID: 31525625 DOI: 10.1016/j.msard.2019.101394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/18/2019] [Accepted: 09/08/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND Myelin Oligodendrocyte Glycoprotein (MOG) antibodies-related disease is mainly presented with acute disseminated encephalomyelitis (ADEM), recurrent optic neuritis, and neuromyelitis optica spectrum disorders (NMOSDs), however the complete clinical spectrum has not yet been defined. We describe an unusual presentation of MOG- related disease. A previously well 10-year-old girl admitted with a focal onset seizure. Neurological examination, electroencephalography, and brain magnetic resonance imaging (MRI) were normal. Following seizure episode she developed gradually increased behavioral and personality changes during a period of 2.5 months. Neurological examination was unremarkable except for drowsiness and minimal ataxia on tandem walking. Repeated brain MRI revealed hazy and poorly demarcated lesions with gadolinium enhancement in the basal ganglia, supratentorial white matter, cerebral peduncles, cerebellum, and servical spinal cord. Cerebrospinal fluid analyses (CSF) revealed 10 lymphocytes /µL, normal protein concentration and IgG index, and negative oligoclonal bands. Auto-antibodies against N-methyl-d-aspartate receptor and CASPR2 in CSF, and antibodies against aquaporin 4 in serum were negative. Analysis with a cell-based assay identified high serum titer of MOG antibodies (1:320). Following IVIG therapy, the patient showed complete clinical recovery within a week with no further relaps for the following 6-month period. CONCLUSION Slowly progressive behavioral and personality changes following a seizure may be a manifestation of MOG-related disease in children.
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Affiliation(s)
- Ünsal Yılmaz
- University of Health Sciences, Dr. Behçet Uz Children's Education and Research Hospital, Department of Pediatric Neurology, Izmir, Turkey.
| | - Selvinaz Edizer
- University of Health Sciences, Dr. Behçet Uz Children's Education and Research Hospital, Department of Pediatric Neurology, Izmir, Turkey
| | - Çisel Yazan Songür
- University of Health Sciences, Dr. Behçet Uz Children's Education and Research Hospital, Department of Child and Adolescent Psychiatry, Izmir, Turkey
| | - Yiğithan Güzin
- University of Health Sciences, Dr. Behçet Uz Children's Education and Research Hospital, Department of Pediatric Neurology, Izmir, Turkey
| | - Fatma Sibel Durak
- University of Health Sciences, Dr. Behçet Uz Children's Education and Research Hospital, Department of Child and Adolescent Psychiatry, Izmir, Turkey
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Zhang J, Ji T, Chen Q, Jiang Y, Cheng H, Zheng P, Ma W, Lei T, Zhang Y, Jin Y, Wei C, Wu Y, Chang X, Bao X, Zhang Y, Xiong H, Ji X, Feng S, Ren H, Yang J, Jiang Y. Pediatric Autoimmune Encephalitis: Case Series From Two Chinese Tertiary Pediatric Neurology Centers. Front Neurol 2019; 10:906. [PMID: 31507515 PMCID: PMC6714292 DOI: 10.3389/fneur.2019.00906] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 08/05/2019] [Indexed: 12/15/2022] Open
Abstract
Background and purpose: We retrospectively analyzed the clinical characteristics of children with autoimmune encephalitis (AE) in two Chinese tertiary pediatric neurology centers. We also compared anti-NMDAR encephalitis with and without co-positive MOG antibody, as well as specific autoantibody-positive AE and autoantibody-negative but probable AE. Methods: A retrospective study of children (0-18 years old) with AE in Peking University First Hospital and Children's Hospital Affiliated to Capital Institute of Pediatrics was carried out from May 2012 to January 2017. Demographics, clinical features, laboratory, and imaging findings, outcome, and co-positivity with MOG antibody were analyzed. Results: A total of 103 children had AE, 89 (86.4%) had anti-NMDAR encephalitis, 2 (1.9%) had anti-LGI1 encephalitis, 1 (0.9%) had anti-CASPR2 encephalitis, and 11 (10.7%) were diagnosed as autoantibody-negative but probable AE. Among the 89 children with anti-NMDAR encephalitis, 35 were males and 54 were females. The follow-up time was 1-3 years. A total of 15 cases (15/89, 16.9%) with anti-NMDAR encephalitis had co-positive MOG antibody (serum or cerebrospinal fluid or both). These patients were more likely to experience relapse later in life (P = 0.014). We had two cases with anti-LGI1 encephalitis, that is, one with sleep disorder onset, and the other one with seizure onset, both of whom recovered after treatment. One case with anti-CASPR2 encephalitis was treated with an antiepileptic drug and fully recovered. There were 11 cases diagnosed as autoantibody-negative but probable AE who had relatively poorer outcome than those with autoantibody-positive AE (15.2%, 14/89). However, the difference was not significant (P = 0.08). Only one 12-year-old girl with NMDAR-antibody AE had ovarian teratoma. Conclusion: Most subjects with AE in our Chinese cohort had anti-NMDAR AE, which had relatively good prognosis. Children with anti-LGI1 or anti-CASPR2 encephalitis were rare and showed good response on immunotherapy. Co-positive MOG antibody was relatively common in anti-NMDAR encephalitis, which was related to high relapse rate. In our study, the prognosis of autoantibody-negative but probable AE seemed worse than that of specific autoantibody-positive AE.
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Affiliation(s)
- Jianzhao Zhang
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Taoyun Ji
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Qian Chen
- Department of Pediatric Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, Beijing, China
| | - Yanan Jiang
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Huan Cheng
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Ping Zheng
- Department of Pediatric Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, Beijing, China
| | - Wenqiang Ma
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Ting Lei
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Yao Zhang
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Yiwen Jin
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Cuijie Wei
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Ye Wu
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Xingzhi Chang
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Xinhua Bao
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Yuehua Zhang
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Hui Xiong
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
| | - Xinna Ji
- Department of Pediatric Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, Beijing, China
| | - Shuo Feng
- Department of Pediatric Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, Beijing, China
| | - Haitao Ren
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, China
| | - Jian Yang
- Department of Pediatric Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, Beijing, China
| | - Yuwu Jiang
- Division of Pediatric Neurology, Pediatrics Department, Peking University First Hospital, Beijing, China
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44
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López-Chiriboga AS, Klein C, Zekeridou A, McKeon A, Dubey D, Flanagan EP, Lennon VA, Tillema JM, Wirrell EC, Patterson MC, Gadoth A, Aaen JG, Brenton JN, Bui JD, Moen A, Otten C, Piquet A, Pittock SJ. LGI1 and CASPR2 neurological autoimmunity in children. Ann Neurol 2019; 84:473-480. [PMID: 30076629 DOI: 10.1002/ana.25310] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 01/19/2023]
Abstract
The clinical phenotype of leucine-rich glioma-inactivated protein 1 (LGI1) and contactin-associated proteinlike 2 (CASPR2) autoimmunity is well defined in adults. Data for children are limited (<10 cases). Among 13,319 pediatric patients serologically tested for autoimmune neurological disorders (2010-2017), 264 were seropositive for voltage-gated potassium channel-complex-IgG (radioimmunoprecipitation). Only 13 (4.9%) were positive by transfected cell-binding assay for LGI1-IgG (n = 7), CASPR2-IgG (n = 3), or both (n = 3). This is significantly less than in adults. Encephalopathy, seizures, and peripheral nerve hyperexcitability were common, as was coexisting autoimmunity. No faciobrachial dystonic seizures or cancers were identified. Functional neurologic disorders were frequently the initial diagnosis, and immunotherapy appeared beneficial. Ann Neurol 2018;84:473-480.
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Affiliation(s)
| | | | | | - Andrew McKeon
- Departments of Neurology.,Laboratory Medicine and Pathology
| | | | | | - Vanda A Lennon
- Departments of Neurology.,Laboratory Medicine and Pathology.,Immunology, Mayo Clinic, Rochester, MN
| | | | | | | | | | - J Gregory Aaen
- Department of Pediatrics and Neurology, Loma Linda University Children's Hospital, Loma Linda, CA
| | - J Nicholas Brenton
- Department of Neurology and Pediatrics, University of Virginia, Charlottesville, VA
| | - Jonathan D Bui
- Department of Neurosciences, University of California, San Diego and Division of Child Neurology, Rady Children's Hospital, San Diego, CA
| | - Amanda Moen
- Department of Pediatric Neurology, Gillette Children's Specialty Healthcare, St Paul, MN
| | - Catherine Otten
- Department of Pediatric Neurology, Seattle Children's Hospital, Seattle, WA
| | - Amanda Piquet
- Department of Neurology, University of Colorado, Aurora, CO
| | - Sean J Pittock
- Departments of Neurology.,Laboratory Medicine and Pathology
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45
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Management of antibody-mediated autoimmune encephalitis in adults and children: literature review and consensus-based practical recommendations. Neurol Sci 2019; 40:2017-2030. [PMID: 31161339 DOI: 10.1007/s10072-019-03930-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 05/09/2019] [Indexed: 12/24/2022]
Abstract
Autoimmune encephalitis associated with antibodies against neuronal surface targets (NSAE) are rare but still underrecognized conditions that affect adult and pediatric patients. Clinical guidelines have recently been published with the aim of providing diagnostic clues regardless of antibody status. These syndromes are potentially treatable but the choice of treatment and its timing, as well as differential diagnoses, long-term management, and clinical and paraclinical follow-up, remain major challenges. In the absence of evidence-based guidelines, management of these conditions is commonly based on single-center expertise.Taking into account different published expert recommendations in addition to the multicenter experience of the Italian Working Group on Autoimmune Encephalitis, both widely accepted and critical aspects of diagnosis, management and particularly of immunotherapy for NSAE have been reviewed and are discussed.Finally, we provide consensus-based practical advice for managing hospitalization and follow-up of patients with NSAE.
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Eyre M, Hacohen Y, Lamb K, Absoud M, Agrawal S, Gadian J, Gupta R, Kneen R, Milford DV, Philip S, Rose K, Smith M, Spinty S, Wassmer E, Lim M, Hemingway C. Utility and safety of plasma exchange in paediatric neuroimmune disorders. Dev Med Child Neurol 2019; 61:540-546. [PMID: 30659589 DOI: 10.1111/dmcn.14150] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/17/2018] [Indexed: 12/27/2022]
Abstract
AIM Our aim was to ascertain the indications, side effects, and outcomes in children receiving therapeutic plasma exchange (TPE) for neurological disorders. METHOD Medical records were retrospectively reviewed for 58 consecutive children (age ≤16y) undergoing 67 courses of TPE across four tertiary centres. Patient characteristics, treatment schedules, complications, and outcomes were analysed. RESULTS Median age at initiation of TPE was 9 years (range 1-15y). Indications included peripheral nervous system (PNS; n=18) and central nervous system (CNS; n=40) disorders. Courses comprised a median six exchanges (range 2-179) over 8 days (range 3-466). Forty-two out of 58 (73%) children were severely disabled (bedridden) at initiation and 24 out of 58 (41%) were admitted to intensive care units. Treating clinicians' impression of response was positive in 16 out of 18 of those with PNS disorders versus 22 out of 40 with CNS disorders (p=0.016). Improvements in disability (modified Rankin Scale) occurred in 13 out of 58 (22%) children by completion of TPE (p=0.003). Complications occurred in 40 out of 67 (60%) courses, of which 16 out of 67 (24%) were line related. Potentially life-threatening complications occurred in 2 out of 67 (3%) courses. INTERPRETATION This cohort study provides safety and efficacy information for clinicians and families and a basis for future prospective studies. WHAT THIS PAPER ADDS Disability scores for severe neuroimmune disorders remained stable or improved during therapeutic plasma exchange treatment. Complications occurred frequently but were typically mild and correctable.
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Affiliation(s)
- Michael Eyre
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, UK.,Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre, London, UK
| | - Yael Hacohen
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, UK.,Department of Neuroinflammation, Queen Square MS Centre, UCL Institute of Neurology, London, UK
| | - Kate Lamb
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, UK
| | - Michael Absoud
- Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Shakti Agrawal
- Department of Neurology, Birmingham Children's Hospital, Birmingham, UK
| | - Jonathan Gadian
- Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre, London, UK
| | - Rajat Gupta
- Department of Neurology, Birmingham Children's Hospital, Birmingham, UK
| | - Rachel Kneen
- Department of Neurology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK.,Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - David V Milford
- Department of Nephrology, Birmingham Children's Hospital, Birmingham, UK
| | - Sunny Philip
- Department of Neurology, Birmingham Children's Hospital, Birmingham, UK
| | - Katie Rose
- Department of Neurology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Martin Smith
- Department of Paediatric Neurology, Oxford Children's Hospital, Oxford, UK
| | - Stefan Spinty
- Department of Neurology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | | | - Ming Lim
- Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Cheryl Hemingway
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, UK
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Bjerin O, Wickström R. Standardised guidelines and reference networks for treating neuroinflammatory conditions in children are lacking. Acta Paediatr 2019; 108:694-698. [PMID: 30136380 DOI: 10.1111/apa.14549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/05/2018] [Accepted: 08/20/2018] [Indexed: 11/28/2022]
Abstract
AIM To investigate whether local or national guidelines are used in treating neuroinflammatory conditions in children and if there is a perceived need for more guidelines and forums of cooperation. METHODS A web-based questionnaire sent to all university hospitals in the Nordic countries (n = 21) between March and July 2015. RESULTS All 21 centres replied to the survey. Markers of neuronal or glial damage and markers of inflammation were used at varying rates. Neuronal antibodies were used at all sites except two. Only three hospitals collaborated with their laboratories in developing new assays for biomarkers. Although most centres used some form of guideline for neuroinflammatory conditions, no single disease had a guideline prevalence over 60%. For some diagnoses, access to guidelines was as low as 10%. Standardised follow-up programs were lacking in 50-95%. A clear majority of the centres perceived a need for more guidelines. Also, forums of cooperation were few. However, there was a great interest in developing paediatric neuroinflammatory guidelines and to create platforms for further consensus work and discussion. CONCLUSION There is a need for developing treatment guidelines within the field of paediatric neuroinflammation to aid in clinical decision-making, and to establish forums of cooperation.
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Affiliation(s)
- Olof Bjerin
- The Institution for Women's and Children's Health, Neuropediatric Unit, Karolinska Institute, Stockholm, Sweden
| | - Ronny Wickström
- The Institution for Women's and Children's Health, Neuropediatric Unit, Karolinska Institute, Stockholm, Sweden
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48
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Nosadini M, Gadian J, Lim M, Sartori S, Thomas T, Dale RC. Mycophenolate mofetil in paediatric autoimmune or immune-mediated diseases of the central nervous system: clinical experience and recommendations. Dev Med Child Neurol 2019; 61:458-468. [PMID: 30221751 DOI: 10.1111/dmcn.14020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/17/2018] [Indexed: 12/14/2022]
Abstract
AIM To gather data on mycophenolate mofetil (MMF) in paediatric autoimmune/immune-mediated central nervous system (CNS) conditions, focusing on safety and factors that may affect MMF efficacy. METHOD Retrospective, multicentre study based on four paediatric neurology centres. RESULTS Forty-four children were included (30 females, 14 males): 19 had proven/suspected autoimmune encephalitis, 14 had inflammatory demyelinating CNS diseases, and 11 had other autoimmune/immune-mediated CNS conditions. Before MMF, all received first-line immune therapies, and 17 had second-line rituximab and/or cyclophosphamide. MMF was started at a median of 9.5 months from disease onset (range 1-127mo) (median age 9y 4mo, range 1y 5mo-16y 5mo), and was used for median 18 months (range 0.3-73mo). On MMF, 31 patients were relapse-free, whereas eight relapsed (excluding patients with chronic-progressive course). Relapses on MMF were associated with medication weaning/cessation, or with suboptimal MMF dosage/duration. Adverse events of MMF occurred in eight patients: six moderate (gastrointestinal, movement disorder, dermatological) and two severe (infectious). INTERPRETATION MMF use in paediatric neuroimmunology is heterogeneous, although relatively safe. We have identified factors that may affect MMF efficacy and provide recommendations on MMF usage. WHAT THIS PAPER ADDS Mycophenolate mofetil (MMF) use was heterogeneous with relatively common adverse events, although mostly not severe. MMF treatment reduced median annualized relapse rate, although 20% of patients relapsed on MMF. A high relapse rate pre-MMF and late MMF start were associated with higher probability of relapsing on MMF. Most relapses were associated with suboptimal MMF dosage, short MMF duration, or concurrent medication weaning/discontinuation.
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Affiliation(s)
- Margherita Nosadini
- Neuroimmunology Group, Institute for Neuroscience and Muscle Research, Kids Research at the Children's Hospital at Westmead, University of Sydney, Westmead, Australia.,Paediatric Neurology and Neurophysiology Unit, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy
| | - Jonathan Gadian
- Children's Neurosciences Centre, Guy's & St Thomas' NHS Foundation Trust, Kings Health Partners Academic Health Science Centre, Evelina London Children's Hospital, London, UK.,Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Ming Lim
- Children's Neurosciences Centre, Guy's & St Thomas' NHS Foundation Trust, Kings Health Partners Academic Health Science Centre, Evelina London Children's Hospital, London, UK
| | - Stefano Sartori
- Paediatric Neurology and Neurophysiology Unit, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy
| | | | - Russell C Dale
- Neuroimmunology Group, Institute for Neuroscience and Muscle Research, Kids Research at the Children's Hospital at Westmead, University of Sydney, Westmead, Australia
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49
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Lu F, Lu H, Xie M, Li S, Zu Y, Zhou J, Yu J, Wang S, Ruan Y, Wen C, Xu Z. Limited preventive effect of prednisone on neuropsychiatric symptoms in murine systemic lupus erythematosus. Inflammopharmacology 2019; 27:511-520. [PMID: 30911862 DOI: 10.1007/s10787-019-00587-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 03/15/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To investigate whether glucocorticoids, the hallmark medication for systemic lupus erythematosus (SLE), could prevent the development of neuropsychiatric SLE (NPSLE). METHODS The protective effects of prednisone on NPSLE were tested using the open field, object recognition/placement, forced swim, tail suspension, and sucrose preference tests in MRL/lpr mice. Auto-antibody titres and the weight of lymph nodes were also measured. RESULTS MRL/lpr mice exhibited mild depression at the age of 8 weeks before progressing with spatial cognitive impairment and severe depression-like behaviour at the age of 16 weeks. Treating MRL/lpr mice with prednisone (5 mg/kg) from the age of 8 weeks decreased anti-cardiolipin and anti-N-methyl-D-aspartate (NMDA) receptor antibody titres in the brain, reduced the weight of lymph nodes, and prolonged the floating latency in the forced swim test. However, prednisone (3 or 5 mg/kg) had no preventive effect on the development of spatial cognitive impairment and other depression-like behaviours in MRL/lpr mice. The dose of prednisone had a positive correlation with the floating latency in the forced swim test, while it offered no effects on all other behavioural tests. CONCLUSION Our results provide evidence that early treatment with prednisone had a limited effect on the development of neuropsychiatric symptoms in MRL/lpr mice. Further work is needed in other models beyond NPSLE in MRL/lpr mice before any definitive conclusions are made on the efficacy of prednisone in human NPSLE.
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Affiliation(s)
- Feilong Lu
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Haimei Lu
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Meijuan Xie
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shan Li
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yunyun Zu
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jia Zhou
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jie Yu
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shuang Wang
- Epilepsy Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Yeping Ruan
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Chengping Wen
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Laboratory of Rheumatology, College of Basic Medical Science, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, 310053, China
| | - Zhenghao Xu
- Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China. .,Laboratory of Rheumatology, College of Basic Medical Science, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, 310053, China.
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18F-Flurodeoxyglucose positron emission tomography with computed tomography (FDG PET/CT) findings in children with encephalitis and comparison to conventional imaging. Eur J Nucl Med Mol Imaging 2019; 46:1309-1324. [DOI: 10.1007/s00259-019-04302-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 02/28/2019] [Indexed: 12/24/2022]
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