1
|
Verma K, Hardy D. Two Cases of Pediatric Leucine-Rich Glioma-Inactivated Protein-1 Encephalitis: Clinical Course, Challenges, and Implications. Pediatr Neurol 2024; 157:96-99. [PMID: 38905745 DOI: 10.1016/j.pediatrneurol.2024.04.031] [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: 03/10/2024] [Revised: 04/23/2024] [Accepted: 04/30/2024] [Indexed: 06/23/2024]
Abstract
BACKGROUND Leucine-rich glioma-inactivated protein 1 (LGI-1) encephalitis is a rare form of autoimmune limbic encephalitis. Although relatively well documented in adults, pediatric cases are rare and remain poorly understood. METHODS We reviewed two pediatric cases of LGI-1 encephalitis from a single tertiary care facility retrospectively. The detailed analysis included assessment of the initial presentation, clinical progression, diagnostic challenges, treatments, and outcome. To contextualize the differences between pediatric and adult manifestations of disease, we compared these findings with existing literature. RESULTS Both cases illustrate the diagnostic challenges faced at initial presentation due to the rarity of this diagnosis in children and the absence of characteristic faciobrachial dystonic seizures, which is common in adults. The constellation of neuropsychiatric symptoms and refractory focal seizures led to a high clinical suspicion for autoimmune encephalitis, therefore, both cases were treated empirically with intravenous methylprednisolone. The diagnosis in both cases was confirmed with positive serum antibody testing, reinforcing that LGI-1 antibodies are more sensitive in the serum rather than the cerebrospinal fluid (CSF). Seizure control and improvement in cognitive symptoms was achieved through a combination of immunotherapy and antiseizure medications. CONCLUSIONS This case series underscores the significance of considering LGI-1 encephalitis in the differential diagnosis of pediatric patients exhibiting unexplained neuropsychiatric symptoms and focal seizures and emphasizes the importance of performing both serum and CSF antibody testing. It is necessary to conduct further research to identify the full range of pediatric presentations and to determine the optimal treatment protocol.
Collapse
Affiliation(s)
- Khushboo Verma
- Department of Neurology, Dell Medical School at UT Austin, Austin Texas.
| | - Duriel Hardy
- Department of Neurology, Dell Medical School at UT Austin, Austin Texas
| |
Collapse
|
2
|
Nair P, Iype T, Panicker P. Painful Itch in a Fidgety Girl. Ann Indian Acad Neurol 2024; 27:208-209. [PMID: 38751911 PMCID: PMC11093180 DOI: 10.4103/aian.aian_651_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/01/2023] [Accepted: 12/17/2023] [Indexed: 05/18/2024] Open
Affiliation(s)
- Poornima Nair
- Department of Neurology, Government Medical College, Thiruvananthapuram, Kerala, India
| | - Thomas Iype
- Department of Neurology, Government Medical College, Thiruvananthapuram, Kerala, India
| | - Praveen Panicker
- Department of Neurology, Government Medical College, Thiruvananthapuram, Kerala, India
| |
Collapse
|
3
|
Andzelm MM, Stredny CM. Mechanisms and Emerging Therapies for Treatment of Seizures in Pediatric Autoimmune Encephalitis and Autoinflammatory/Autoimmune-Associated Epilepsy. Rheum Dis Clin North Am 2023; 49:875-893. [PMID: 37821201 DOI: 10.1016/j.rdc.2023.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
There has been increasing understanding of the role of inflammation in seizures and epilepsy, as well as targeted immunomodulatory treatments. In children, immune-mediated seizures often present acutely in the setting of autoimmune encephalitis and are very responsive to immunotherapy with low rates of subsequent epilepsy. Conversely, seizures in autoimmune-associated epilepsies, such as Rasmussen syndrome, can remain refractory to multimodal therapy, including immunomodulation. In this review, the authors discuss the presentations of immune-mediated seizures in children, underlying mechanisms, and emerging therapies.
Collapse
Affiliation(s)
- Milena M Andzelm
- Program in Neuroimmunology, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Coral M Stredny
- Program in Neuroimmunology, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA; Division of Epilepsy and Neurophysiology, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
4
|
de Freitas Dias B, Fieni Toso F, Slhessarenko Fraife Barreto ME, de Araújo Gleizer R, Dellavance A, Kowacs PA, Teive H, Spitz M, Freire Borges Juliano A, Januzi de Almeida Rocha L, Braga-Neto P, Ribeiro Nóbrega P, Oliveira-Filho J, Maciel Dias R, de Oliveira Godeiro Júnior C, Martins Maia F, Barbosa Thomaz R, Santos ML, Sousa de Melo E, da Nóbrega Júnior AW, Lin K, Graziani Povoas Barsottini O, Endmayr V, Coelho Andrade LE, Höftberger R, Almeida Dutra L. Brazilian autoimmune encephalitis network (BrAIN): antibody profile and clinical characteristics from a multicenter study. Front Immunol 2023; 14:1256480. [PMID: 37954587 PMCID: PMC10634608 DOI: 10.3389/fimmu.2023.1256480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/04/2023] [Indexed: 11/14/2023] Open
Abstract
Background The frequency of antibodies in autoimmune encephalitis (AIE) may vary in different populations, however, data from developing countries are lacking. To describe the clinical profile of AIE in Brazil, and to evaluate seasonality and predictors of AIE in adult and pediatric patients. Methods We evaluated patients with possible AIE from 17 centers of the Brazilian Autoimmune Encephalitis Network (BrAIN) between 2018 and 2022. CSF and serum were tested with TBAs and CBAs. Data on clinical presentation, complementary investigation, and treatment were compiled. Seasonality and predictors of AIE in adult and pediatric populations were analyzed. Results Of the 564 patients, 145 (25.7%) were confirmed as seropositive, 69 (12.23%) were seronegative according to Graus, and 58% received immunotherapy. The median delay to diagnosis confirmation was 5.97 ± 10.3 months. No seasonality variation was observed after 55 months of enrolment. The following antibodies were found: anti-NMDAR (n=79, 54%), anti-MOG (n=14, 9%), anti-LGI1(n=12, 8%), anti-GAD (n=11, 7%), anti-GlyR (n=7, 4%), anti-Caspr2 (n=6, 4%), anti-AMPAR (n=4, 2%), anti-GABA-BR (n=4, 2%), anti-GABA-AR (n=2, 1%), anti-IgLON5 (n=1, 1%), and others (n=5, 3%). Predictors of seropositive AIE in the pediatric population (n=42) were decreased level of consciousness (p=0.04), and chorea (p=0.002). Among adults (n=103), predictors of seropositive AIE were movement disorders (p=0.0001), seizures (p=0.0001), autonomic instability (p=0.026), and memory impairment (p=0.001). Conclusion Most common antibodies in Brazilian patients are anti-NMDAR, followed by anti-MOG and anti-LGI1. Only 26% of the possible AIE patients harbor antibodies, and 12% were seronegative AIE. Patients had a 6-month delay in diagnosis and no seasonality was found. Findings highlight the barriers to treating AIE in developing countries and indicate an opportunity for cost-effect analysis. In this scenario, some clinical manifestations help predict seropositive AIE such as decreased level of consciousness, chorea, and dystonia among children, and movement disorders and memory impairment among adults.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Helio Teive
- Hospital Universitário da Universidade Federal do Paraná, Curitiba, Brazil
| | - Mariana Spitz
- Hospital Universitário Pedro Ernesto da Universidade Estadual do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Pedro Braga-Neto
- Division of Neurology, Department of Clinical Medicine, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Paulo Ribeiro Nóbrega
- Division of Neurology, Department of Clinical Medicine, Universidade Federal do Ceará, Fortaleza, Brazil
| | | | | | | | | | | | | | | | | | - Katia Lin
- Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | | | - Verena Endmayr
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | | | - Romana Höftberger
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | | |
Collapse
|
5
|
Cheng YK, Ling YZ, Yang CF, Li YM. Contactin-associated protein-like 2 antibody-associated autoimmune encephalitis in children: case reports and systematic review of literature. Acta Neurol Belg 2023; 123:1663-1678. [PMID: 36662402 PMCID: PMC9857898 DOI: 10.1007/s13760-023-02174-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/05/2023] [Indexed: 01/21/2023]
Abstract
OBJECTIVES To ascertain the clinical characteristics of pediatric patients with contactin-associated protein-like 2 (CASPR2) antibody-associated autoimmune encephalitis (AEs). METHODS Two cases of CASPR2 antibody-associated AEs have been reported. In addition, a systematic search of literature published between January 2010 and March 2022 through six online databases was conducted to identify the pediatric patients with CASPR2 antibody-associated AEs. Data on demographics, clinical symptoms, laboratory examinations, imaging, treatment, and outcome were collected. RESULTS Our updated literature search yielded 1,837 publications, of which 21 were selected, and 40 patients in this study met the diagnostic criteria for AE. There were 25 males and 15 females with a mean age of 9.2 years. The most common presenting symptoms are psychiatric symptoms (72.5%), sleep changes (62.5%), and movement disorders (60%). The psychiatric symptoms included mood changes (39.1%), behavior changes (25%), and hallucination (7.5%). In total, 23 cases (57.5%) combined with autonomic dysfunction, such as gastrointestinal dysmotility, cardiovascular-related symptoms, and sweating. No tumors were observed in children. Thirty-eight patients received first-line immunotherapy, and eight received first-line and second-line immunotherapy. All patients had a good clinical response to immune therapy. Mean mRS at onset was 3.4; It was 0.88 at the last follow-up. There was no recurrence during follow-up. CONCLUSION Psychiatric symptoms, sleep disorders, movement disorders, and cardiovascular-related symptoms are the most common presentation in pediatric patients with CASPR2 antibody-associated AEs. Tumor, particularly with thymoma, is uncommon in children diagnosed with CASPR2 antibody-associated AEs. In addition, prompt diagnosis and immunotherapy can relieve symptoms and improve the prognosis.
Collapse
Affiliation(s)
- Yong-kang Cheng
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, No. 1 Xinmin Street, Changchun, 130021 Jilin China
| | - Yao-zheng Ling
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, No. 1 Xinmin Street, Changchun, 130021 Jilin China
| | - Chun-feng Yang
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, No. 1 Xinmin Street, Changchun, 130021 Jilin China
| | - Yu-mei Li
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, No. 1 Xinmin Street, Changchun, 130021 Jilin China
| |
Collapse
|
6
|
Chen L, Su T, Liu Y. Clinical characteristics of Leucine-rich glioma-inactivated protein 1 antibody-mediated autoimmune encephalitis in a 6-year-old girl: case report and literature reviews. BMC Neurol 2023; 23:253. [PMID: 37391712 DOI: 10.1186/s12883-023-03299-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 06/16/2023] [Indexed: 07/02/2023] Open
Abstract
BACKGROUND Autoimmune encephalitis related to the leucine-rich glioma-inactivated protein 1(LGI1) antibody is the most prevalent in older adults, manifesting as seizures, faciobrachial dystonic seizures (FBDS), cognitive impairment, memory disturbance, hyponatremia and neuropsychiatric disorders. However the data pertaining to children affected by the disease is still limited. CASE PRESENTATION AND LITERATURE REVIEWS This study presents a detailed report of a 6-year-old Chinese girl who experienced nose aches and faciobrachial dystonic seizures (FBDS). Electrolyte testing revealed that she had hyponatremia and brain MRI showed an abnormality in the left temporal pole. Additionally, anti-LGI1 antibodies were detected in both her serum (1:100) and CSF (1:30). The patient was treated with immunotherapy and symptom management, which proved effective. Furthermore, we provide a summary of 25 pediatric cases of anti-LGI1 encephalitis. Pediatric patients rarely exhibited FBDS and hyponatremia, and some cases presented with isolated syndromes. But the therapeutic outcomes of pediatric patients were generally good. CONCLUSIONS In this report, we describe a patient who developed a rare symptom of nose aches possibly as one of symptoms of anti-LGI1 encephalitis, which highlights the possibility of atypical symptoms in children that may be misdiagnosed. Reviewing the literature, the clinical features differed between pediatric and adult cases. Therefore, it is crucial to collect and analyze data from more cases to promote accurate diagnosis and timely treatment.
Collapse
Affiliation(s)
- Liqing Chen
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tangfeng Su
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Liu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
7
|
Hu W, Wang E, Fang H, Li L, Yi J, Liu Q, Qing W, Guo D, Tan Q, Liao H. Clinical spectrum of contactin-associated protein 2 autoimmune encephalitis in children. Front Neurosci 2023; 17:1106214. [PMID: 37274200 PMCID: PMC10232858 DOI: 10.3389/fnins.2023.1106214] [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: 11/23/2022] [Accepted: 04/03/2023] [Indexed: 06/06/2023] Open
Abstract
Objective Anti-contactin-associated protein 2 (CASPR2)-related autoimmune encephalitis (AE) is more common in adults than in children. Clinical understanding of anti-CASPR2-antibody (Ab)-related AE, diagnosis and treatment standards are lacking in children. Therefore, this retrospective study on clinical symptoms and treatment outcomes in children with anti-CASPR2-Ab-related AE was conducted, to improve the clinical understanding of the disease, its diagnosis and treatment. Methods This study retrospectively assessed children with anti-CASPR2-Ab-related AE from January 1, 2020, to June 30, 2022, in the Department of Neurology at Hunan Children's Hospital. Data regarding demographics, clinical symptoms, laboratory examinations, electroencephalography (EEG), imaging, and curative were collected. Results Thirteen patients were positive for serum anti-CASPR2-Ab (age at manifestation, 25 months to 13 years old; median, 8.1 years old; male-to-female ratio, 8/5). One patient (P1) had dual Abs, including anti-CASPR2 and anti-N-methyl-D-aspartate receptor Abs; his symptoms were more severe than those of children with anti-CASPR2 Abs alone. The clinical symptoms of the 13 patients with anti-CASPR2 Ab were movement disorders (9/13), consciousness disorders (9/13), abnormal demeanor (8/13), seizures (7/13), language disorders (6/13), fever (6/13), pain (4/13), involuntary exercise (4/13), poor diet (4/13), vomiting (3/13), sleep disorders (3/13), mood disorders (3/13), eczema/itching/redness (2/13), sweating (P8), urinary disorders (P13), and cognitive disorders (P9). No tumors were found in any patient. Additionally, EEG results of six patients were abnormal and imaging findings such as abnormal signals were found in 10 patients. Moreover, all except one patient recovered well after treatment; P1 with overlapping syndrome underwent recovery for more than 2 years. None of the patients who recovered have had a relapse. Discussion and conclusion Anti-CASPR2-Ab-related AE has several clinical manifestations. Anti-CASPR2-Ab levels were higher in male patients than in female patients. Moreover, related tumors are relatively rare. Most patients benefit from immunotherapy and have a lower chance of recurrence in the short term. Furthermore, different from patients who had anti-CASPR2-Ab AE alone, those with overlapping syndrome had a severe and complex condition requiring lengthy treatment and rehabilitation. Additional studies are needed to evaluate the long-term prognosis of these patients.
Collapse
Affiliation(s)
- Wenjing Hu
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Enhui Wang
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Hongjun Fang
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Li Li
- Department of Radiology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Jurong Yi
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Qingqing Liu
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Wei Qing
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Danni Guo
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Qianqian Tan
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Hongmei Liao
- Department of Neurology, Hunan Children’s Hospital, Changsha, Hunan, China
| |
Collapse
|
8
|
Ramanathan S, Brilot F, Irani SR, Dale RC. Origins and immunopathogenesis of autoimmune central nervous system disorders. Nat Rev Neurol 2023; 19:172-190. [PMID: 36788293 DOI: 10.1038/s41582-023-00776-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2023] [Indexed: 02/16/2023]
Abstract
The field of autoimmune neurology is rapidly evolving, and recent discoveries have advanced our understanding of disease aetiologies. In this article, we review the key pathogenic mechanisms underlying the development of CNS autoimmunity. First, we review non-modifiable risk factors, such as age, sex and ethnicity, as well as genetic factors such as monogenic variants, common variants in vulnerability genes and emerging HLA associations. Second, we highlight how interactions between environmental factors and epigenetics can modify disease onset and severity. Third, we review possible disease mechanisms underlying triggers that are associated with the loss of immune tolerance with consequent recognition of self-antigens; these triggers include infections, tumours and immune-checkpoint inhibitor therapies. Fourth, we outline how advances in our understanding of the anatomy of lymphatic drainage and neuroimmune interfaces are challenging long-held notions of CNS immune privilege, with direct relevance to CNS autoimmunity, and how disruption of B cell and T cell tolerance and the passage of immune cells between the peripheral and intrathecal compartments have key roles in initiating disease activity. Last, we consider novel therapeutic approaches based on our knowledge of the immunopathogenesis of autoimmune CNS disorders.
Collapse
Affiliation(s)
- Sudarshini Ramanathan
- Translational Neuroimmunology Group, Kids Neuroscience Centre, Children's Hospital at Westmead, Sydney, New South Wales, Australia
- Sydney Medical School, Faculty of Medicine and Health and Brain and Mind Centre, University of Sydney, Sydney, New South Wales, Australia
- Department of Neurology, Concord Hospital, Sydney, New South Wales, Australia
| | - Fabienne Brilot
- Translational Neuroimmunology Group, Kids Neuroscience Centre, Children's Hospital at Westmead, Sydney, New South Wales, Australia
- School of Medical Science, Faculty of Medicine and Health and Brain and Mind Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Sarosh R Irani
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Russell C Dale
- Translational Neuroimmunology Group, Kids Neuroscience Centre, Children's Hospital at Westmead, Sydney, New South Wales, Australia.
- Sydney Medical School, Faculty of Medicine and Health and Brain and Mind Centre, University of Sydney, Sydney, New South Wales, Australia.
- TY Nelson Department of Paediatric Neurology, Children's Hospital Westmead, Sydney, New South Wales, Australia.
| |
Collapse
|
9
|
Jang S, Kim SY, Kim WJ, Chae JH, Kim KJ, Lim BC. A case of pediatric anti-leucine-rich glioma inactivated 1 encephalitis with faciobrachial dystonic seizure. Brain Dev 2023; 45:348-353. [PMID: 36858863 DOI: 10.1016/j.braindev.2023.02.003] [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: 09/14/2022] [Revised: 02/05/2023] [Accepted: 02/13/2023] [Indexed: 03/03/2023]
Abstract
BACKGROUND Anti-leucine-rich glioma-inactivated 1 (LGI1) encephalitis is a rare type of autoimmune encephalitis. A characteristic faciobrachial dystonic seizure (FBDS) is also frequently associated with this disease. Although primarily reported in the adult population, reports of its occurrence in the pediatric population are rare. Here, we describe a case of a 6-year-old girl diagnosed with anti-LGI1 encephalitis that presented with cognitive decline and FBDS. CASE PRESENTATION The girl was referred to a pediatric neurology department for uncontrolled seizures and dyskinesia. She initially presented with a memory deficit, abnormal movement of the limbs and trunk, and ataxia. Her cerebrospinal fluid exam was unremarkable, but her brain MRI showed focal T2 high signal intensity in the left anterior putamen and right caudate nucleus. In addition, there were refractory episodes of brief tonic or dystonic movement of the face and arms that were suggestive of FBDS. She was initially treated with intravenous methylprednisolone and phenobarbital, then given another pulse of methylprednisolone and intravenous immunoglobulin as her symptoms persisted. Tests for neuronal autoantibodies revealed the presence of anti-LGI1 antibodies. Subsequent human leukocyte antigen (HLA) typing resulted in the identification of HLA-DRB1 DR7(*07:01 g) DR9(*09:01 g). Screening for thymoma and other neoplasms showed no signs of a tumor. She was treated with rituximab, tocilizumab, and antiseizure medications, including oxcarbazepine, valproic acid, and lamotrigine. Her FBDS and cognitive symptoms showed substantial improvements. CONCLUSION While it is known that anti-LGI1 encephalitis responds well to immunotherapy, our patient showed an incomplete response, requiring further therapy. This is the first report of a pediatric patient with anti-LGI1 encephalitis treated with tocilizumab.
Collapse
Affiliation(s)
- Seoyun Jang
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Soo Yeon Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Woo Joong Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Jong-Hee Chae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea; Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Ki Joong Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea; Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Byung Chan Lim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea; Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea.
| |
Collapse
|
10
|
Wu L, Cai F, Zhuo Z, Wu D, Zhang T, Yang H, Fang H, Xiao Z. CASPR2 antibody associated neurological syndromes in children. Sci Rep 2023; 13:2073. [PMID: 36747031 PMCID: PMC9902610 DOI: 10.1038/s41598-023-28268-x] [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: 07/10/2022] [Accepted: 01/16/2023] [Indexed: 02/08/2023] Open
Abstract
To strengthen the understanding of the clinical features for CASPR2 neurological autoimmunity in children. A multicenter retrospective and prospective analysis of CASPR2 autoimmunity was conducted. Twenty-six patients were enrolled, including 25 with serum positivity and 3 with cerebrospinal fluid (CSF) positivity; 5 patients were co-positive with anti-NMDAR or anti-GABABR antibodies. Eleven patients (who manifested with refractory epilepsy, psychobehavioral abnormalities or germinoma) presented with low antibody titers, relatively normal MRI/EEG/CSF examinations, and poor response to immunotherapy and were thus considered false positive (42.3%). Fifteen patients were diagnosed with autoimmune encephalitis/ encephalopathy/ cerebellitis (including 1 whose condition was secondary to Japanese encephalitis). The most common symptoms included disorders of consciousness (10/15), fever (8/15), psychological symptoms/abnormal behaviors (8/15), sleep disorders (8/15), seizures (7/15), movement disorders (5/15), autonomic symptoms (5/15). Brain MRI revealed abnormalities in 10 patients (66.7%). Electroencephalography (EEG) recordings revealed a slow wave background in 13 patients (86.7%). Five patients showed elevated WBCs in CSF, and 4 patients showed elevated protein levels in the CSF. Thirteen patients received immunotherapy (rituximab was adopted in 2 cases) and recovered well. Two patients received symptomatic treatment, and the recovery was slow and accompanied by emotional abnormalities and developmental delay. Autoimmune encephalitis is the most common clinical phenotype; it can be secondary to Japanese encephalitis. Rituximab can be used in patients who respond poorly to conventional immunotherapy. The high false-positive rate of anti-CASPR2 in refractory epilepsy and the psychobehavioral abnormalities needs to be explored further.
Collapse
Affiliation(s)
- Liwen Wu
- Neurology department, Hunan Children's Hospital, The School of Pediatrics, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Fang Cai
- Neurology department, Chenzhou Children's Hospital, Chengzhou, Hunan, China
| | - Zhihong Zhuo
- Pediatric Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Dejun Wu
- Longshan People's Hospital, Xiangxi Autonomous Prefecture, Hunan, China
| | | | - Haiyang Yang
- Neurology department, Hunan Children's Hospital, The School of Pediatrics, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Hongjun Fang
- Neurology department, Hunan Children's Hospital, The School of Pediatrics, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Zhenghui Xiao
- Hunan Key Laboratory of Pediatric Emergency Medicine, Hunan Children's Hospital, The School of Pediatrics, Hengyang Medical School, University of South China, Changsha, Hunan, China.
| |
Collapse
|
11
|
Alotaibi W, Bashir S, Mir A. Faciobrachial Dystonic Seizures as a Sign of Relapse in a Child with LGI-1 Encephalitis. Child Neurol Open 2022; 9:2329048X221105960. [PMID: 35677210 PMCID: PMC9168855 DOI: 10.1177/2329048x221105960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/16/2022] [Accepted: 05/20/2022] [Indexed: 11/26/2022] Open
Abstract
We report an interesting case of a young girl with LGI1-antibody encephalitis who
presented at 7 years old with very frequent seizures and severe neurocognitive decline.
She responded very well to high dose corticosteroids and intravenous immunoglobulin (IVIG)
initially but relapsed after 7 months. The relapse included frequent faciobrachial
dystonic seizures (FBDS) that were successfully treated with rituximab. This case report
highlights a few important points about LGI1-antibody encephalitis in children to help
clinicians recognize this condition early and start prompt treatment with
immunosuppressants. Data is lacking about LGI1-antibody encephalitis in children as it is
mostly reported in adults. Our patient presented with frequent drug-resistant seizures
including FBDS, along with amnesia, confusion, medial temporal lobe involvement, and
hyponatremia similar to the presentation in adults. In contrast, none of the patients in
the recent systematic review had FBDS or hyponatremia, making our case unique and
suggesting variability in clinical presentation in children similar to adults. To our
knowledge, FBDS have never been reported in children and our patient was initially
misdiagnosed as having Childhood Epilepsy with Centrotemporal spikes. Since receiving
rituximab, our patient is seizure-free for 1 year and 9 months and was successfully weaned
of topiramate. She is going to school and has normal attention, concentration, memory, and
mood. We propose early consideration of rituximab to accelerate recovery and prevent
relapse.
Collapse
Affiliation(s)
- Wajd Alotaibi
- Pediatric Neurology Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Shahid Bashir
- Neuroscience Center, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Ali Mir
- Pediatric Neurology Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| |
Collapse
|
12
|
Garrido Sanabria ER, Zahid A, Britton J, Kraus GJ, López-Chiriboga AS, Zekeridou A, Flanagan EP, McKeon A, Mills JR, Pittock SJ, Dubey D. CASPR2-IgG-associated autoimmune seizures. Epilepsia 2022; 63:709-722. [PMID: 35032032 DOI: 10.1111/epi.17164] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/26/2021] [Accepted: 12/28/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVE This study was undertaken to report clinical presentations and outcomes of CASPR2-IgG-associated seizures. METHODS Mayo Clinic Neuroimmunology database was queried to identify CASPR2-IgG-seropositive (CASPR2-IgG+) patients evaluated at our institution (2009-2019). RESULTS Of the 53 CASPR2-IgG+ patients (titer ≥ 1:10), 20 had seizures (38%). All seizure patients were male, with median onset age of 68 years. Eighteen (90%) had seizures at initial presentation. One patient was found to have malignancy (colon adenocarcinoma). Two patients had coexisting LGI1-IgG. Twelve patients had archived sera, which on titration had CASPR2-IgG titers ≥ 1:100. Fifteen patients (75%) met criteria for autoimmune encephalitis. Patients most commonly presented with focal onset, nonmotor seizures with impaired awareness (n = 14, 70%). Eleven patients also had focal motor and/or sensory seizures as one of the seizure semiologies. The majority of patients (n = 11, 55%) developed generalized tonic-clonic seizures during their disease course. Seizure clusters occurred in 12 patients. In addition to seizures, patients developed cognitive disturbance (n = 16, 80%), episodic emotional lability (n = 13, 65%), paroxysmal dizziness (n = 9, 45%), episodic ataxia (n = 6, 30%), and chronic ataxia (n = 9, 45%). Only three patients (15%) had coexisting peripheral nervous system involvement. Frontotemporal or temporal ictal and/or interictal electroencephalographic abnormalities were present among nine patients, and three had multifocal epileptiform abnormalities. Eight patients (40%) had medial temporal T2/fluid-attenuated inversion recovery hyperintensity on brain magnetic resonance imaging. Elevated cerebrospinal fluid protein and/or lymphocytic pleocytosis was present in most cases (13/14, 93%). Thirteen patients reached seizure freedom following initiation of antiseizure medication (ASM; n = 4) or a combination of immunotherapy and ASM (n = 9). Median duration of follow-up was 25 months (range = 2-136 months). SIGNIFICANCE CASPR2-IgG evaluation should be considered among older male patients with new onset focal seizures and impaired awareness often occurring in clusters with/without features of encephalitis. Coexisting neurological manifestations, including episodic emotional lability, ataxia, and paroxysmal dizziness, also aid in the diagnosis.
Collapse
Affiliation(s)
| | - Anza Zahid
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jeffrey Britton
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Gregory J Kraus
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Anastasia Zekeridou
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Eoin P Flanagan
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Andrew McKeon
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - John R Mills
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Sean J Pittock
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Divyanshu Dubey
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
13
|
Jiang Y, Tan C, Li T, Song X, Ma J, Yao Z, Hong S, Li X, Jiang L, Luo Y. Phenotypic Spectrum of CASPR2 and LGI1 Antibodies Associated Neurological Disorders in Children. Front Pediatr 2022; 10:815976. [PMID: 35463890 PMCID: PMC9021408 DOI: 10.3389/fped.2022.815976] [Citation(s) in RCA: 2] [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: 11/16/2021] [Accepted: 03/11/2022] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES The clinical data of patients with double-positive for leucine-rich glioma-inactivated protein 1 (LGI1) and contactin-associated protein-like 2 (CASPR2) antibodies is limited, particularly for children. This study aimed to investigate and summarize the clinical features and long-term prognosis of children's LGI1 and CASPR2 antibodies related to neurological disorders. METHODS We collected the clinical data and prognosis of patients with dual positive antibodies of CASPR2 and LGI1, hospitalized in the Department of Neurology, Children's Hospital of Chongqing Medical University. Furthermore, we summarized the clinical phenotypes of this disorder in children by reviewing the published literature. RESULTS Two patients presenting with variable neurological symptoms including pain, hypertension, profuse sweating, irritability, and dyssomnia from Children's Hospital of Chongqing Medical University were enrolled in this study. Together with the two patients, we identified 17 children with dual CASPR2 and LGI1 antibodies, including 12 males and 5 females. At the onset, the median age was 4.1 years (range 1-16, interquartile range 2.5-13.5), with 9 children younger than 5 years and 6 adolescents. Of the 17 patients, 11 were diagnosed with Morvan syndrome, 4 with acquired neuromyotonia, 1 with Guillain-Barré syndrome, and 1 with Guillain-Barré syndrome combined with Morvan syndrome. Dysautonomia (14/17, 82.3%), pain (13/17, 76.4%), sleep disorders (13/17, 76.4%), encephalopathy (12/17, 70.5%), and weight loss (10/17, 58.8%) were the most frequently described symptoms overall. No tumors were identified. Of the 17 patients, 13 received immunotherapy comprising IVIG combination of IVMP during the acute symptomatic phase followed by oral prednisolone to maintain remission (n = 7), the combination of IVIG, IVMP, oral prednisolone and methotrexate (n = 1), the combination of IVIG, IVMP, and mycophenolate mofetil (n = 1), the combination of IVIG, IVMP, oral prednisolone, and rituximab (n = 1), IVIG only (n = 2), IVMP only (n = 1). Median modified Rankin Scale (mRS) scores in the acute phase were 3 (range 1-4) and improved gradually. Over the follow-up (median 8.6 months, range 1-36 months), 52.9% (9/17) of the patients recovered completely; one patient relapsed and showed immunotherapy-dependent. CONCLUSION LGI1 and CASPR2 double-positive antibodies associated with the neurological diseases can occur in children of all ages and involve multiple nervous systems. Morvan syndrome is the most common phenotype of this disorder. The long-term outcomes are mostly favorable upon immunotherapy.
Collapse
Affiliation(s)
- Yan Jiang
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Chengbing Tan
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Tingsong Li
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Xiaojie Song
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Jiannan Ma
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Zhengxiong Yao
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Siqi Hong
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Xiujuan Li
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Li Jiang
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Yuanyuan Luo
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| |
Collapse
|
14
|
Wang Y, Zhang WH, Wang Y. Case Report: Isolated Epileptic Seizures Associated With Anti-LGI1 Antibodies in a 7-Year-Old Girl With Literature Review. Front Pediatr 2022; 10:856775. [PMID: 35712617 PMCID: PMC9194368 DOI: 10.3389/fped.2022.856775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/09/2022] [Indexed: 12/20/2022] Open
Abstract
We describe the case of a 7-year-old girl with anti-leucine-rich glioma-inactivated 1 (anti-LGI1) antibodies (Abs) who presented with isolated epileptic seizures. Her refractory focal seizures did not respond to anti-seizure medicines but responded rapidly to immunotherapy. She remained seizure-free at 2 years follow-up. Reviewing the literature, isolated epileptic seizures have not been reported as the phenotype of anti-LGI1 autoimmunity in children. Our study indicated that screening for anti-LGI1 Abs is necessary for children with severe and/or drug-resistant new-onset focal epileptic seizures.
Collapse
Affiliation(s)
- Ying Wang
- Department of Neurology, Henan Children's Hospital, Zhengzhou Children's Hospital, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Wei-Hua Zhang
- National Centre for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Yuan Wang
- Department of Neurology, Henan Children's Hospital, Zhengzhou Children's Hospital, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| |
Collapse
|
15
|
Abstract
Limbic encephalitis (LE) is a clinical syndrome defined by subacutely evolving limbic signs and symptoms with structural and functional evidence of mediotemporal damage in the absence of a better explanation than an autoimmune (or paraneoplastic) cause. There are features common to all forms of LE. In recent years, antibody(ab)-defined subtypes have been established. They are distinct regarding underlying pathophysiologic processes, clinical and magnetic resonance imaging courses, cerebrospinal fluid signatures, treatment responsivity, and likelihood of a chronic course. With immunotherapy, LE with abs against surface antigens has a better outcome than LE with abs to intracellular antigens. Diagnostic and treatment challenges are, on the one hand, to avoid overlooking and undertreatment and, on the other hand, to avoid overdiagnoses and overtreatment. LE can be conceptualized as a model disease for the consequences of new onset mediotemporal damage by different mechanisms in adult life. It may be studied as an example of mediotemporal epileptogenesis.
Collapse
Affiliation(s)
- Christian G Bien
- Department of Epileptology (Krankenhaus Mara), Bielefeld University, Bielefeld, Germany; Laboratory Krone, Bad Salzuflen, Germany.
| |
Collapse
|
16
|
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.
Collapse
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
| |
Collapse
|
17
|
Dziadkowiak E, Moreira H, Buska-Mach K, Szmyrka M, Budrewicz S, Barg E, Janik M, Pokryszko-Dragan A. Occult Autoimmune Background for Epilepsy-The Preliminary Study on Antibodies Against Neuronal Surface Antigens. Front Neurol 2021; 12:660126. [PMID: 34744955 PMCID: PMC8567837 DOI: 10.3389/fneur.2021.660126] [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: 01/28/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: The objective of the study was to determine the incidence of antibodies against neuronal surface antigens (NSA-ab) in patients with different types of epilepsy, in comparison with the subjects diagnosed with immune-mediated disorders. Methods: Forty patients with drug-resistant epilepsy (DRE) of unknown origin, 16 with post-stroke epilepsy, and 23 with systemic autoimmune disorders (SAD) with CNS involvement were included. NSA-ab were sought in serum using indirect immunofluorescence method. Relationships were analyzed between presence of NSA-ab and clinical presentation. Results: NSA-ab was detected in the sera from five patients: anti-DPPX in one patient, anti-AMPAR1/R2 in two, anti-LGI1 in one and, in one case, both anti-CASPR2 and DPPX IgG. Out of these five patients, three represented the SAD subgroup and two the DRE subgroup. None of the patients with post-stroke epilepsy was positive for NSA-ab. Significance: Autoimmune etiology is worth considering in patients with drug-resistant epilepsy of unknown origin. The presence of NSA-ab in patients with systemic autoimmune disorders may be caused by unspecifically enhanced autoimmune reactivity. NSA-ab seem not to be related to epilepsy resulting from ischemic brain injury.
Collapse
Affiliation(s)
- Edyta Dziadkowiak
- Department of Neurology, Wroclaw Medical University, Wroclaw, Poland
| | - Helena Moreira
- Department of Basic Medical Sciences, Wroclaw Medical University, Wroclaw, Poland
| | | | - Magdalena Szmyrka
- Department of Rheumatology, Wroclaw Medical University, Wroclaw, Poland
| | | | - Ewa Barg
- Department of Basic Medical Sciences, Wroclaw Medical University, Wroclaw, Poland
| | | | | |
Collapse
|
18
|
Tanguturi YC, Hanzlik E, Pagano L, Cundiff AW, Graham TB, Fuchs DC. Anti-NMDAR Encephalitis: Multidisciplinary Development of a Clinical Practice Guideline. Hosp Pediatr 2021; 11:1295-1302. [PMID: 34642216 DOI: 10.1542/hpeds.2021-005882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Yasas C Tanguturi
- Division of Child and Adolescent Psychiatry, Department of Psychiatry and Behavioral Sciences
| | | | | | - Allyson Witters Cundiff
- Division of Child and Adolescent Psychiatry, Department of Psychiatry and Behavioral Sciences
| | | | - D Catherine Fuchs
- Division of Child and Adolescent Psychiatry, Departments of Psychiatry and Behavioral Sciences and Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
| |
Collapse
|
19
|
Abstract
PURPOSE OF REVIEW To provide an update on recent developments regarding acquired, antibody-mediated, neuromuscular hyperexcitability syndromes, including Isaac's and Morvan's syndromes, cramp-fasciculation syndrome and rippling muscle disease, and their genetic differential diagnoses. RECENT FINDINGS Antibodies in auto-immune peripheral nerve hyperexcitability syndromes (PNHS) are directed against CASPR2 and LGI1, proteins of the voltage-gated potassium channel (VGKC) complex. We discuss the significance of 'double-negative' VGKC antibodies in PNHS and the rationale for ceasing VGKC antibody testing (but testing CASPR2 and LGI1 antibodies instead) in clinical practice. Recent case reports also expand the possible clinical phenotypes related to CASPR2/LGI1 antibodies, but the interpretation of these findings is complicated by the frequent association of antibody-mediated neuromuscular hyperexcitability syndromes with other auto-immune disorders (e.g. myasthenia gravis).Finally, a hereditary origin of neuromuscular hyperexcitability should always be considered, even in non-VGKC-related genes, as evidenced by the recently discovered high frequency of HINT1 mutations in people of Slavic origin. SUMMARY This review provides an update on recent clinical, immunological and genetic developments in neuromuscular hyperexcitability syndromes. We also provide a guide for the clinician for diagnosing and managing these disorders in clinical practice, with a special focus on the main differential diagnoses.
Collapse
|
20
|
Moseley N, King J, Van Dort B, Williams S, Rodriguez-Casero V, Ramachandran S, Choo S, Cole T, McLean-Tooke A. Anti-voltage-Gated Potassium Channel (VGKC) Antibodies and Acquired Neuromyotonia in Patients with Immune Dysregulation, Polyendocrinopathy, Enteropathy X-Lined (IPEX) Syndrome. J Clin Immunol 2021; 41:1972-1974. [PMID: 34478044 DOI: 10.1007/s10875-021-01128-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/24/2021] [Indexed: 11/26/2022]
MESH Headings
- Adolescent
- Autoantibodies/blood
- Child
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/congenital
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/therapy
- Diarrhea/blood
- Diarrhea/genetics
- Diarrhea/immunology
- Diarrhea/therapy
- Forkhead Transcription Factors/genetics
- Genetic Diseases, X-Linked/blood
- Genetic Diseases, X-Linked/genetics
- Genetic Diseases, X-Linked/immunology
- Genetic Diseases, X-Linked/therapy
- Hematopoietic Stem Cell Transplantation
- Humans
- Immune System Diseases/blood
- Immune System Diseases/congenital
- Immune System Diseases/genetics
- Immune System Diseases/immunology
- Immune System Diseases/therapy
- Infant, Newborn
- Isaacs Syndrome/blood
- Isaacs Syndrome/genetics
- Isaacs Syndrome/immunology
- Isaacs Syndrome/therapy
- Male
- Mutation
- Potassium Channels, Voltage-Gated/immunology
Collapse
Affiliation(s)
- Natasha Moseley
- Department of Paediatric Immunology, Perth Children's Hospital, Nedlands, WA, Australia
| | - Jovanka King
- Department of Paediatric Immunology, Perth Children's Hospital, Nedlands, WA, Australia
- Department of Immunology, PP Block, PathWest, QEII, Nedlands, WA, 6008, Australia
| | - Ben Van Dort
- Department of Paediatric Immunology, Children's Cancer Centre, The Royal Children's Hospital Melbourne, VIC, Australia
| | - Simon Williams
- Department of Neurology, Perth Children's Hospital, Nedlands, WA, Australia
| | | | - Shanti Ramachandran
- Department of Oncology, Haematology, Blood and Marrow Transplantation, Perth Children's Hospital, Nedlands, WA, Australia
- School of Paediatrics, University of Western Australia, Perth, WA, Australia
| | - Sharon Choo
- Department of Paediatric Immunology, Children's Cancer Centre, The Royal Children's Hospital Melbourne, VIC, Australia
- Immunology Laboratory, The Royal Children's Hospital, Melbourne, VIC, Australia
| | - Theresa Cole
- Department of Paediatric Immunology, Children's Cancer Centre, The Royal Children's Hospital Melbourne, VIC, Australia
| | - Andrew McLean-Tooke
- Department of Paediatric Immunology, Perth Children's Hospital, Nedlands, WA, Australia.
- Department of Immunology, PP Block, PathWest, QEII, Nedlands, WA, 6008, Australia.
| |
Collapse
|
21
|
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.
Collapse
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
| |
Collapse
|
22
|
Pediatric LGI1 and CASPR2 autoimmunity associated with COVID 19: Morvan syndrome. J Neurol 2021; 268:4492-4494. [PMID: 34003371 PMCID: PMC8129962 DOI: 10.1007/s00415-021-10614-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 11/27/2022]
|
23
|
Tan C, Jiang Y, Zhong M, Hu Y, Hong S, Li X, Jiang L. Clinical Features and Outcomes in Pediatric Autoimmune Encephalitis Associated With CASPR2 Antibody. Front Pediatr 2021; 9:736035. [PMID: 34660491 PMCID: PMC8518709 DOI: 10.3389/fped.2021.736035] [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: 07/04/2021] [Accepted: 08/30/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Contactin-associated protein-like 2 (CASPR2) neurological autoimmunity has been associated with various clinical syndromes involving central and peripheral nervous system. CASPR2 antibody-associated autoimmune encephalitis is mostly reported in adults. Analysis of the clinical presentation and prognostic data of CASPR2 antibody-associated autoimmune encephalitis in children remains important. Methods: A single-center retrospective review of children diagnosed with CASPR2 antibody-associated autoimmune encephalitis from June 1st, 2018 to October 31st, 2020. Results: Six patients were identified. The median age was 12 years (range 1.8-14), with an overall male predominance of 83% (5/6). Commonest clinical features were psychiatric symptoms (6/6), movement disorders (4/6), altered consciousness (3/6), sleep disorders (3/6), and headache (3/6). Four patients (4/6) received first-line therapy alone (steroids combined with intravenous immunoglobulins), and two patients (2/6) received second-line therapy (rituximab, mycophenolate mofetil, or cyclophosphamide). All patients showed no peripheral nervous system involvement. One patient had comorbidities with systemic lupus erythematosus. No evidence of neoplastic disease was found in the whole cohort. All patients had favorable outcomes (modified Rankin Score 0-2) with recurrence rate at 0%, respectively. Conclusion: CASPR2 antibody-associated autoimmune encephalitis is rare in children. Our findings suggest that this type of encephalitis seems to occur more frequently in older children. Patients respond well to immunotherapy and usually demonstrate a favorable clinical outcome. Associated tumors are extremely rare.
Collapse
Affiliation(s)
- Chengbing Tan
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Yan Jiang
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Min Zhong
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Yue Hu
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Siqi Hong
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Xiujuan Li
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| | - Li Jiang
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China
| |
Collapse
|
24
|
Abstract
Both the onset of various malignancies as well as the treatment of cancer can lead to neurologic symptoms which can be difficult to diagnose. In this review, we highlight the varied ways in which neurologic sequelae of cancer and its treatment manifest in children. Initial neurologic presentation may be secondary to mass effect or to immune-mediated paraneoplastic syndromes. Treatment effects on the nervous system may arise from surgery, chemotherapy, radiation, or bone marrow transplantation. In addition, the rapidly expanding field of immunotherapies for cancer has generated numerous new approaches to eradicating cancer including monoclonal antibodies, checkpoint inhibitors, and chimeric antigen receptor T cells (CAR-T cells), which have neurologic side effects mediated by immune responses that are also being recognized. Here we review common consult questions to the neurologist and our general approach to these scenarios including altered mental status, headaches, seizures, and sensorimotor complaints, considering the multifactorial nature of each.
Collapse
Affiliation(s)
- Caren Armstrong
- Department of Neurology, Johns Hopkins Hospital, 200 N Wolfe St Suite 2158, Baltimore, MD, 21287, USA
| | - Lisa R Sun
- Department of Neurology, Johns Hopkins Hospital, 200 N Wolfe St Suite 2158, Baltimore, MD, 21287, USA.
| |
Collapse
|
25
|
Clinical characteristics of patients double positive for CASPR2 and LGI1-antibodies. Clin Neurol Neurosurg 2020; 197:106187. [PMID: 32911250 DOI: 10.1016/j.clineuro.2020.106187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVES This study described the clinical characteristics of autoimmune neurological diseases with dual seropositive antibodies of CASPR2 and LGI1. PATIENTS AND METHODS Three patients, with antibodies targeting both CASPR2 and LGI1 (EUROIMMUN, FA 112d-1, Germany), hospitalized in Department of Neurology, Xuanwu Hospital, Capital Medical University from June 2016 to June 2019 were collected in this study. We summarized the clinical characteristics of patients with CASPR2 and LGI1 antibodies from a targeted literature review. RESULTS Three patients reported were all middle-aged and elderly male with diverse neurological symptoms, including seizures, psychological abnormalities, limb weakness and hyperhidrosis. Interestingly, three patients displayed three different clinical syndromes (isolated epilepsy, Morvan syndrome and limbic encephalitis, respectively). White blood cell and glucose in Cerebrospinal fluid (CSF) were normal and CSF for protein was slightly elevated. Electromyography (EMG) showed abnormal spontaneous firing in case 2. Brain magnetic resonance imaging (MRI) revealed bilateral hyper-intensity of the temporal lobe on T2 and FLAIR sequence in case 3. Cancer screening program of patient 2 showed thymoma. Cell based assay was positive in serum for both LGI1 and CASPR2 antibodies, while these antibodies were negative in CSF. They were treated with glucocorticoid or intravenous immunoglobulin (IVIG). Followed up for 6 months to 1 year, all patients got remission to different extent. CONCLUSION Through the detailed analysis of three patients, the combination of both antibodies contributes to a broad spectrum of neurological symptoms in the central, peripheral, and autonomic nervous systems. The patients with same antibodies can have different clinical syndromes. Early tumor screening and immunotherapy will improve the prognosis of the disease.
Collapse
|
26
|
|
27
|
Dale RC, Rostásy K. Autoimmune pediatric neuropsychiatric symptoms with pain and hypertension: CASPR2 antibody. Neurology 2020; 94:953-954. [PMID: 32424052 DOI: 10.1212/wnl.0000000000009521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Russell C Dale
- From the Kids Neuroscience Centre (R.C.D.), Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, Australia; and Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany.
| | - Kevin Rostásy
- From the Kids Neuroscience Centre (R.C.D.), Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, Australia; and Department of Pediatric Neurology (K.R.), Children's Hospital Datteln, University Witten/Herdecke, Germany
| |
Collapse
|
28
|
Syrbe S, Stettner GM, Bally J, Borggraefe I, Bien CI, Ferfoglia RI, Huppke P, Kern J, Polster T, Probst-Müller E, Schmid S, Steinfeld R, Strozzi S, Weichselbaum A, Weitz M, Ziegler A, Wandinger KP, Leypoldt F, Bien CG. CASPR2 autoimmunity in children expanding to mild encephalopathy with hypertension. Neurology 2020; 94:e2290-e2301. [PMID: 32424051 DOI: 10.1212/wnl.0000000000009523] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 12/12/2019] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To delineate autoimmune disease in association with contactin-associated protein 2 (CASPR2) antibodies in childhood, we reviewed the clinical phenotype of children with CASPR2 antibodies. METHODS Retrospective assessment of patients recruited through laboratories specialized in autoimmune CNS disease. RESULTS Ten children with serum CASPR2 antibodies were identified (age at manifestation 18 months to 17 years). Eight children with CASPR2 antibody titers from ≥1:160 to 1:5,120 had complex autoimmune diseases with an age-dependent clinical phenotype. Two children with structural epilepsy due to CNS malformations harbored nonspecific low-titer CASPR2 antibodies (serum titers 1:80). The clinical symptoms of the 8 children with high-titer CASPR2 antibodies were general weakness (8/8), sleep dysregulation (8/8), dysautonomia (8/8) encephalopathy (7/8), neuropathic pain (7/8), neuromyotonia (3/8), and flaccid paresis (3/8). Adolescents (3/8) showed pain, neuromyotonia, and encephalopathy, whereas younger children (5/8) displayed severe hypertension, encephalopathy, and hormonal dysfunction mimicking a systemic disease. No tumors were identified. Motor symptoms remitted with immunotherapy. Mild behavioral changes persisted in 1 child, and autism spectrum disorder was diagnosed during follow-up in a young boy. CONCLUSION High-titer CASPR2 antibodies are associated with Morvan syndrome in children as young as 2 years. However, CASPR2 autoimmunity mimics systemic disease and hypertensive encephalopathy in children younger than 7 years. The outcome following immunotherapy was mostly favorable; long-term behavioral impairment may occur in younger children.
Collapse
Affiliation(s)
- Steffen Syrbe
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany.
| | - Georg M Stettner
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Julien Bally
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Ingo Borggraefe
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Corinna I Bien
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Ruxandra Iancu Ferfoglia
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Peter Huppke
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Jan Kern
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Tilman Polster
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Elisabeth Probst-Müller
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Silvia Schmid
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Robert Steinfeld
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Susi Strozzi
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Annette Weichselbaum
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Marcus Weitz
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Andreas Ziegler
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Klaus-Peter Wandinger
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Frank Leypoldt
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| | - Christian G Bien
- From the Division of Pediatric Epileptology (S. Syrbe), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, Germany; Division of Pediatric Neurology (G.M.S., R.S.), University Children's Hospital Zurich; Department of Neurology (J.B., R.I.F.), University & University Hospitals of Geneva, Switzerland; Division of Pediatric Neurology (I.B.), Developmental Neurology and Social Pediatrics, Department of Pediatrics and Epilepsy Center for Children, Adolescents and Adults, University Hospital LMU Munich; Laboratory Krone (C.I.B., C.G.B.), Bad Salzuflen; Department of Pediatrics and Pediatric Neurology (P.H.), Faculty of Medicine, Georg August University, Goettingen; Department of Child Neurology (J.K., A.W.), University Children's Hospital, Tuebingen; Epilepsy Center Bethel (T.P., C.G.B.), Krankenhaus Mara, Bielefeld, Germany; Clinic of Immunology (E.P.-M.), University Hospital Zurich; Kantonsspital Graubünden (S. Schmid, S. Strozzi), Chur; Pediatric Nephrology Unit (M.W.), University Children's Hospital Zurich, Switzerland; Division of Child Neurology and Metabolic Medicine (A.Z.), Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg; Institute of Clinical Chemistry (K.-P.W., F.L.), Neuroimmunology Section, University Hospital Schleswig-Holstein Kiel/Lübeck; Department of Neurology (K.-P.W.), University of Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-University Kiel, Germany
| |
Collapse
|
29
|
Wegener-Panzer A, Cleaveland R, Wendel EM, Baumann M, Bertolini A, Häusler M, Knierim E, Reiter-Fink E, Breu M, Sönmez Ö, Della Marina A, Peters R, Lechner C, Piepkorn M, Roll C, Höftberger R, Leypoldt F, Reindl M, Rostásy K. Clinical and imaging features of children with autoimmune encephalitis and MOG antibodies. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2020; 7:7/4/e731. [PMID: 32358225 PMCID: PMC7217659 DOI: 10.1212/nxi.0000000000000731] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/25/2020] [Indexed: 12/14/2022]
Abstract
Objective To describe the presentations, radiologic features, and outcomes of children with autoimmune encephalitis associated with myelin oligodendrocyte glycoprotein antibodies (MOG abs). Methods Identification of children fulfilling the diagnostic criteria for possible autoimmune encephalitis (AE) and testing positive for serum MOG abs. Chart review and comprehensive analysis of serum MOG abs using live cell assays and rat brain immunohistochemistry. Results Ten children (4 girls, 6 boys) with AE and serum MOG abs were identified. The median age at onset was 8.0 years (range: 4–16 years). Children presented with a combination of encephalopathy (10/10), headache (7/10), focal neurologic signs (7/10), or seizures (6/10). CSF pleocytosis was common (9/10, median 80 white cell count/μL, range: 21–256). Imaging showed cortical and deep gray matter involvement in all in addition to juxtacortical signal alterations in 6/10 children. No involvement of other white matter structures or contrast enhancement was noted. MOG abs were detected in all children (median titer 1:640; range: 1:320–1:10,540). Nine children had a favorable outcome at discharge (modified Rankin scale of < 2). Five of 10 children had up to 3 additional demyelinating relapses associated with persisting MOG abs. One child had NMDA receptor (NMDAR) abs at initial presentation. A second child had a third demyelinating episode with MOG abs with overlapping NMDAR encephalitis. Discussion AE associated with serum MOG abs represents a distinct form of autoantibody-mediated encephalitis in children. We therefore recommend including MOG abs testing in the workup of children with suspected AE.
Collapse
Affiliation(s)
- Andreas Wegener-Panzer
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Robert Cleaveland
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Eva-Maria Wendel
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Matthias Baumann
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Annikki Bertolini
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Martin Häusler
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Ellen Knierim
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Edith Reiter-Fink
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Markus Breu
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Özcan Sönmez
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Adela Della Marina
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Renate Peters
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Christian Lechner
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Martin Piepkorn
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Claudia Roll
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Romana Höftberger
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Frank Leypoldt
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Markus Reindl
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria
| | - Kevin Rostásy
- From the Department of Radiology (A.W.-P., R.C.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (E.-M.W.), Olgahospital, Klinikum Stuttgart, Germany; Division of Pediatric Neurology (M. Baumann, C.L.), Department of Pediatrics I, Medical University of Innsbruck, Austria; Department of Pediatric Neurology (A.B., K.R.), Children's Hospital Datteln, University Witten/Herdecke; Department of Pediatrics (M.H.), Division of Neuropediatrics and Social Pediatrics, Medical University RWTH Aachen, Germany; Charité-Universitätsmedizin Berlin (E.K.), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Germany; Department of Neuropediatrics (E.K.), Berlin, Germany; Department of Pediatrics and Adolescent Medicine (E.R.-F., M. Breu), Medical University of Vienna; St. Anna Children´s Hospital (E.R.-F.), Vienna, Austria; Klinik für Kinder und Jugendmedizin (Ö.S.), Evangelisches Krankenhaus Hamm, Germany; Department of Neuropediatrics (A.D.M.), Developmental Neurology and Social Pediatrics, Children's Hospital, University of Duisburg-Essen, Germany; Department of Pediatrics (R.P.), Christliches Kinderhospital Osnabrück, Germany; Department of Pediatric Neurology (M.P.), Children's Hospital Auf der Bult, Hannover Germany; Department of Neonatology (C.R.), Pediatric Intensive Care, Sleep Medicine, Children's Hospital Datteln, University Witten/Herdecke, Germany; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Neuroimmunology (F.L.), Institute of Clinical Chemistry and Department of Neurology, Christian-Albrechts-University Kiel and Medical University Hospital Schleswig-Holstein, Germany; and Clinical Department of Neurology (M.R.), Medical University of Innsbruck, Austria.
| |
Collapse
|
30
|
Possible clinical role of MOG antibody testing in children presenting with acute neurological symptoms. Neurol Sci 2020; 41:2553-2559. [PMID: 32242290 DOI: 10.1007/s10072-020-04379-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
Abstract
The differential diagnosis between acquired inflammatory demyelinating syndromes of the central nervous system (CNS), such as multiple sclerosis (MS), neuromyelitis optica spectrum disorders (NMOSD) and acute disseminated encephalomyelitis (ADEM) can be very challenging at onset. Apart from cerebrospinal fluid oligoclonal bands and anti-aquaporin-4 antibodies (AQP4-Ab), definite diagnostic biomarkers are lacking. Anti-myelin oligodendrocyte glycoprotein antibodies (MOG-Abs) have been increasingly described in children with AQP4-seronegative NMOSD, ADEM and other inflammatory demyelinating CND syndromes; despite partial overlaps with AQP4-Ab disease, a novel "MOG-Ab-disorder" phenotype has been suggested. In this study, we tested the presence of MOG-Ab and AQP4-Ab in 57 children at first onset of acute neurological symptoms; three clinical subgroups were identified: 12 patients had acquired inflammatory demyelinating CNS syndromes, 11 had other autoimmune/immune-mediated disorders of the central and peripheral nervous system and 34 had non-immune-mediated CNS disorders. MOG-Abs were found positive only in a subset of cases in the subgroup with acquired inflammatory demyelinating CNS syndromes (in 2/12 patients, both with non-MS phenotype) and in none of the patients with other autoimmune and immune-mediated disorders of the central and peripheral nervous system or with non-immune-mediated disorders of the CNS.Data from the literature review support clinical and analytical observations.
Collapse
|
31
|
Bien CG, Bien CI, Dogan Onugoren M, De Simoni D, Eigler V, Haensch CA, Holtkamp M, Ismail FS, Kurthen M, Melzer N, Mayer K, von Podewils F, Rauschka H, Rossetti AO, Schäbitz WR, Simova O, Witt K, Höftberger R, May TW. Routine diagnostics for neural antibodies, clinical correlates, treatment and functional outcome. J Neurol 2020; 267:2101-2114. [PMID: 32246252 PMCID: PMC8213550 DOI: 10.1007/s00415-020-09814-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/28/2020] [Accepted: 03/28/2020] [Indexed: 12/12/2022]
Abstract
Objective To determine frequencies, interlaboratory reproducibility, clinical ratings, and prognostic implications of neural antibodies in a routine laboratory setting in patients with suspected neuropsychiatric autoimmune conditions. Methods Earliest available samples from 10,919 patients were tested for a broad panel of neural antibodies. Sera that reacted with leucine-rich glioma-inactivated protein 1 (LGI1), contactin-associated protein-2 (CASPR2), or the voltage-gated potassium channel (VGKC) complex were retested for LGI1 and CASPR2 antibodies by another laboratory. Physicians in charge of patients with positive antibody results retrospectively reported on clinical, treatment, and outcome parameters. Results Positive results were obtained for 576 patients (5.3%). Median disease duration was 6 months (interquartile range 0.6–46 months). In most patients, antibodies were detected both in CSF and serum. However, in 16 (28%) patients with N-methyl-d-aspartate receptor (NMDAR) antibodies, this diagnosis could be made only in cerebrospinal fluid (CSF). The two laboratories agreed largely on LGI1 and CASPR2 antibody diagnoses (κ = 0.95). The clinicians (413 responses, 71.7%) rated two-thirds of the antibody-positive patients as autoimmune. Antibodies against the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR), NMDAR (CSF or high serum titer), γ-aminobutyric acid-B receptor (GABABR), and LGI1 had ≥ 90% positive ratings, whereas antibodies against the glycine receptor, VGKC complex, or otherwise unspecified neuropil had ≤ 40% positive ratings. Of the patients with surface antibodies, 64% improved after ≥ 3 months, mostly with ≥ 1 immunotherapy intervention. Conclusions This novel approach starting from routine diagnostics in a dedicated laboratory provides reliable and useful results with therapeutic implications. Counseling should consider clinical presentation, demographic features, and antibody titers of the individual patient. Electronic supplementary material The online version of this article (10.1007/s00415-020-09814-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Christian G Bien
- Epilepsy Center Bethel, Krankenhaus Mara, Maraweg 17-21, 33617, Bielefeld, Germany.
| | | | - Müjgan Dogan Onugoren
- Department of Neurology, Epilepsy Center, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Germany
| | - Desiree De Simoni
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.,Department of Neurology, University Hospital St. Poelten, St. Poelten, Austria
| | - Verena Eigler
- Department of Neurology, Städtisches Klinikum Ludwigshafen Am Rhein, Ludwigshafen, Germany
| | - Carl-Albrecht Haensch
- Department of Neurology, Kliniken Maria Hilf Moenchengladbach, Faculty of Health, University of Witten/Herdecke, Moenchengladbach, Germany
| | - Martin Holtkamp
- Epilepsy-Center Berlin-Brandenburg, Institute for Diagnostics of Epilepsy, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany
| | - Fatme S Ismail
- Department of Neurology, University Hospital Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | | | - Nico Melzer
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Kristina Mayer
- Department of Neurology, University Hospital of Augsburg, Augsburg, Germany
| | - Felix von Podewils
- Department of Neurology, University Medicine Greifswald, Greifswald, Germany
| | - Helmut Rauschka
- Department of Neurology and Karl Landsteiner Institute for Neuroimmunological and Neurodegenerative Disorders, Sozialmedizinisches Zentrum Ost, Donauspital, Vienna, Austria
| | - Andrea O Rossetti
- Department of Clinical Neurosciences, University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | | | - Olga Simova
- Protestant Hospital Alsterdorf, Epilepsy Center Hamburg, Hamburg, Germany
| | - Karsten Witt
- Department of Neurology and Research Centre of Neurosensory Sciences, Carl Von Ossietzky University, Oldenburg, Germany
| | - Romana Höftberger
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
| | | |
Collapse
|
32
|
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.
Collapse
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
| |
Collapse
|
33
|
Matricardi S, Farello G, Savasta S, Verrotti A. Understanding Childhood Neuroimmune Diseases of the Central Nervous System. Front Pediatr 2019; 7:511. [PMID: 31921724 PMCID: PMC6930888 DOI: 10.3389/fped.2019.00511] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 11/25/2019] [Indexed: 12/18/2022] Open
Abstract
Immune-mediated diseases of the central nervous system (CNS) in childhood are a heterogeneous group of rare conditions sharing the inflammatory involvement of the CNS. This review highlights the growing knowledge of childhood neuroimmune diseases that primarily affect the CNS, outlining the clinical and diagnostic features, the pathobiological mechanisms and genetics, current treatment options, and emerging challenges. The clinical spectrum of these conditions is increasingly expanded, and the underlying mechanisms of dysregulation of the immune system could vary widely. Cell-mediated and antibody-mediated disorders, infection-triggered and paraneoplastic conditions, and genetically defined mechanisms can occur in previously healthy children and can contribute to different stages of the disease. The careful evaluation of the clinical presentation and temporal course of symptoms, the specific neuroimaging and immunological findings, and the exclusion of alternative causes are mandatory in clinical practice for the syndromic diagnosis. A common feature of these conditions is that immunotherapeutic agents could modulate the clinical course and outcomes of the disease. Furthermore, specific symptomatic treatments and comprehensive multidisciplinary care are needed in the overall management. We focus on recent advances on immune-mediated demyelinating CNS disorders, autoimmune encephalitis, interferonopathies, and possible neuroimmune disorders as Rasmussen encephalitis. Better knowledge of these conditions could allow prompt diagnosis and targeted immunotherapy, to decrease morbidity and mortality as well as to improve clinical outcomes, reducing the burden of the disease due to possible long-term neuropsychiatric sequelae. Persisting controversies remain in the rigorous characterization of each specific clinical entity because of the relative rarity in children; moreover, in a large proportion of suspected neuroimmune diseases, the immune "signature" remains unidentified; treatment guidelines are mostly based on retrospective cohort studies and expert opinions; then advances in specific molecular therapies are required. In the future, a better characterization of specific immunological biomarkers may provide a useful understanding of the underlying pathobiological mechanisms of these conditions in order to individualize more tailored therapeutic options and paradigms. Multicenter collaborative research on homogeneous groups of patients who may undergo immunological studies and therapeutic trials could improve the characterization of the underlying mechanisms, the specific phenotypes, and tailored management.
Collapse
Affiliation(s)
- Sara Matricardi
- Department of Neuropsychiatry, Children's Hospital "G. Salesi", Ospedali Riuniti Ancona, Ancona, Italy
| | - Giovanni Farello
- Pediatric Clinic, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Salvatore Savasta
- Department of Pediatrics, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Alberto Verrotti
- Department of Pediatrics, University of L'Aquila, L'Aquila, Italy
| |
Collapse
|