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Hacohen Y. Pediatric Autoimmune Neurologic Disorders. Continuum (Minneap Minn) 2024; 30:1160-1188. [PMID: 39088292 DOI: 10.1212/con.0000000000001464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
OBJECTIVE This article discusses common principles in diagnosing and managing autoimmune neurologic conditions in children. LATEST DEVELOPMENTS The key to improving outcomes in all patients with autoimmune neurologic diseases is making an early diagnosis, promptly initiating treatment, and identifying patients who will benefit from long-term maintenance treatment. Some neuroinflammatory syndromes can be diagnosed with an antibody biomarker (eg, aquaporin-4 antibodies, N-methyl-d-aspartate [NMDA] receptor antibodies), whereas others require clinical diagnostic criteria (eg, multiple sclerosis, opsoclonus-myoclonus syndrome). A proportion of children will be labeled as seronegative, and further investigations for other inflammatory or monogenetic etiologies need to be carried out in parallel with treating the central nervous system inflammation. Time to treatment and treatment escalation were shown to correlate with outcomes in many patients with these disorders. The choice and duration of treatment should be evaluated considering side effects and risks in the short and long terms. The presence of a highly inflammatory disease process in children supports the use of highly effective disease-modifying therapies in pediatrics. ESSENTIAL POINTS The phenotypes of pediatric autoimmune neurologic conditions may change across different age groups, as the brain is still actively developing. In general, the presentation in children is more inflammatory, but overall disability is lower, likely because of better neuroplasticity and repair. Convincing evidence has increasingly emerged to support the biological rationale that effective immunosuppressive therapies used in adult neuroimmunology are equally effective in children.
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Bergman K, Fowler Å, Ygberg S, Lovio R, Wickström R. Neurocognitive outcome in children and adolescents following infectious encephalitis. Child Neuropsychol 2024; 30:882-899. [PMID: 37970642 DOI: 10.1080/09297049.2023.2281688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 11/03/2023] [Indexed: 11/17/2023]
Abstract
Infectious encephalitis in children is fairly uncommon, but unfavorable outcomes are seen in many survivors. The aim of this study was to prospectively describe the long-term neurocognitive consequences following infectious encephalitis in childhood. Children admitted to a primary and tertiary hospital in Sweden between 2011 and 2016 were asked to participate. Fifty-nine children were assessed at a median time of 18 months (IQR 18-20) after hospitalization. Follow-up included measures of intellectual functioning, attention, working memory, and executive functions. Caregiver ratings of executive functioning and behavioral - emotional symptoms were assessed with standardized questionnaires. Neurocognitive outcome and measures of executive functions and behavioral-emotional symptoms varied greatly among participants. Basic auditory attention, working memory, and mental processing speed were affected and significantly lower compared to a standardized mean. Other domains identified as areas of vulnerability included executive functions, sustained attention, and the exert of self-control. Behavioral-emotional symptoms were less common; however, somatic complaints and behaviors related to conduct problems were seen in about one-third of individuals. This study highlights the importance of a comprehensive neurocognitive examination to identify children with unfavorable outcomes.
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Affiliation(s)
- Kristian Bergman
- Neuropediatric Unit, Department of Women´s and Children´s Health, Karolinska Institutet, Stockholm, Sweden
| | - Åsa Fowler
- Pediatric Emergency Department, Karolinska University Hospital, Stockholm, Sweden
| | - Sofia Ygberg
- Neuropediatric Unit, Karolinska University Hospital, Stockholm, Sweden
| | - Riikka Lovio
- Women´s Health and Allied Health Professionals Theme, Department of Medical Psychology, Karolinska University Hospital, Stockholm, Sweden
| | - Ronny Wickström
- Neuropediatric Unit, Department of Women´s and Children´s Health, Karolinska Institutet, Stockholm, Sweden
- Neuropediatric Unit, Karolinska University Hospital, Stockholm, Sweden
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Yamada N, Inoue T, Kuki I, Yamamoto N, Fukuoka M, Nukui M, Okuno H, Ishikawa J, Amo K, Togawa M, Sakuma H, Okazaki S. Higher incidence of acute symptomatic seizures in probable antibody-negative pediatric autoimmune encephalitis than in major antibody-positive autoimmune encephalitis. Front Neurol 2024; 15:1418083. [PMID: 39099783 PMCID: PMC11294254 DOI: 10.3389/fneur.2024.1418083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Purpose To delineate the characteristics of probable antibody-negative pediatric autoimmune encephalitis (probable Ab-negative AE), we compared the clinical features of probable Ab-negative AE to those of major antibody-positive AE. Methods We retrospectively reviewed the clinical features of 18 patients with probable Ab-negative AE, 13 with anti-N-methyl-D-aspartate receptor encephalitis (NMDARE), and 13 with myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Clinical characteristics, neuroimaging findings, treatments, and outcomes were analyzed. Results The age of onset and length of hospital stay were significantly higher in the NMDARE group than in the other groups (p = 0.02 and p < 0.01). Regarding initial neurological symptoms, acute symptomatic seizures in the probable Ab-negative AE group (67%) were significantly more frequent than in the NMDARE (15%) and MOGAD (23%) groups (p < 0.01). Paraclinical evidence of neuroinflammation within 1 month of disease onset revealed that single-photon emission computed tomography (SPECT) detected abnormal alterations in 14/14 (100%), cerebrospinal fluid (CSF) analysis in 15/18 (83%), and magnetic resonance imaging (MRI) in 11/18 (61%) in patients with probable Ab-negative AE. In the probable Ab-negative AE group, seven patients (39%) developed autoimmune-associated epilepsy, whereas one patient (8%) had both NMDARE and MOGAD (not statistically significant, p = 0.07). Conclusion Patients with probable Ab-negative AE exhibited acute symptomatic seizures as initial neurological symptoms significantly more frequently. They developed autoimmune-associated epilepsy more frequently than those with NMDARE and MOGAD, which was not statistically significant. SPECT within 1 month of disease onset might be a valuable surrogate marker of ongoing neuroinflammation and neuronal dysfunction, even in patients with negative MRI findings.
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Affiliation(s)
- Naoki Yamada
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Takeshi Inoue
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Ichiro Kuki
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Naohiro Yamamoto
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Masataka Fukuoka
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Megumi Nukui
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
| | - Hideo Okuno
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Junichi Ishikawa
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Kiyoko Amo
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Masao Togawa
- Department of Pediatric Emergency, Infectious Disease Internal Medicine, Osaka City General Hospital, Osaka, Japan
| | - Hiroshi Sakuma
- Department of Brain and Neuroscience, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Shin Okazaki
- Department of Pediatric Neurology and Logopedics, Osaka City General Hospital, Osaka, Japan
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Rossor T, Lim M. Immune-mediated encephalitis. Dev Med Child Neurol 2024; 66:307-316. [PMID: 37438863 DOI: 10.1111/dmcn.15694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 07/14/2023]
Abstract
A neurological deterioration in a child presents a significant worry to the family and often a diagnostic challenge to the clinician. A dysregulated immune response is implicated in a wide and growing spectrum of neurological conditions. In this review we consider the current paradigms in which immune-mediated encephalopathies are considered; the development of paediatric specific diagnostic criteria that facilitate early consideration and treatment of immune-mediated conditions and the limitations and potential developments in diagnostic testing. We consider the expanding phenotype of myelin oligodendrocyte glycoprotein antibody, the spectrum of virus-associated encephalopathy syndromes, and the strategies that have been employed to build an evidence base for the management of these rare conditions. Looking forward we explore the potential for advanced molecular investigations to improve our understanding of immune-mediated encephalitides and guide future treatment strategies. Recently characterized immune-mediated central nervous system disorders include new antibodies causing previously recognized phenotypes. Aggregation of conditions with similar clinical triggers, and characterization of unique imaging features in virus-associated encephalopathy syndromes. Immune treatment iscurrently guided by meta-analysis of individualized patient data and/or multi-national consensus.
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Affiliation(s)
- Thomas Rossor
- Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Ming Lim
- Children's Neurosciences, Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, London, UK
- Department Women and Children's Health, School of Life Course Sciences, King's College London, UK
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Wagner JN. Anticonvulsive treatment in autoimmune encephalitis: a systematic literature review. Wien Med Wochenschr 2024; 174:22-29. [PMID: 36648700 DOI: 10.1007/s10354-022-00998-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/09/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND Epileptic seizures are a common manifestation of autoimmune encephalitis (AIE). Immunosuppression (IT) is an efficient therapeutic approach, particularly in AIE associated with antibodies against extracellular structures. The role of antiseizure medication (ASM) is less clear. However, it may be beneficial in disease refractory to IT or in chronic post-AIE epilepsy. METHODS We conducted a systematic review assessing the PubMed and Cochrane databases to identify all reports on patients with epileptic seizures due to AIE in whom ASM was used and report it according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards. We included case series (minimum 3 eligible patients), retrospective and prospective observational studies, and randomized controlled trials. The main outcome assessed was therapeutic efficacy of ASM. Secondary outcomes comprise number, type, and adverse effects of ASM. Descriptive statistics were used. The level of evidence was assessed according to the Centre for Evidence-Based Medicine. RESULTS We screened a total of 3371 studies and included 30 (7 prospective, 23 retrospective). The reports cover a total of 708 patients, the majority (72.5%) suffering from AIE with antibodies against extracellular structures. Type of AIE, seizure frequency, and number and type of ASM used were heterogenous. While most patients profited from IT and/or ASM, the effect of ASM could rarely be isolated. Nine studies report on patients who received ASM monotherapy or were on ASM for a relevant length of time before IT initiation or after IT failure. One study reports a significant association between seizure freedom and use of sodium channel inhibitors. However, levels of evidence were generally low. CONCLUSION Few robust data exist on the particular efficacy of ASM in autoimmune epileptic seizures. While these patients generally seem to respond less well to ASM or surgical interventions, sodium channel blockers may have an additional benefit compared to other substances. However, levels of evidence are low and early IT remains the mainstay of AIE therapy. Future trials should address optimal ASM selection and dosing in AIE.
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Affiliation(s)
- Judith N Wagner
- Department of Neurology, Evangelisches Klinikum Gelsenkirchen, Academic Hospital, University Essen-Duisburg, Munckelstr. 27, 45879, Gelsenkirchen, Germany.
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Abbatemarco JR, Vedeler CA, Greenlee JE. Paraneoplastic cerebellar and brainstem disorders. HANDBOOK OF CLINICAL NEUROLOGY 2024; 200:173-191. [PMID: 38494276 DOI: 10.1016/b978-0-12-823912-4.00030-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Paraneoplastic cerebellar and brainstem disorders are a heterogeneous group that requires prompt recognition and treatment to help prevent irreversible neurologic injury. Paraneoplastic cerebellar degeneration is best characterized by Yo antibodies in patients with breast or ovarian cancer. Tr (DNER) antibodies in patients with Hodgkin lymphoma can also present with a pure cerebellar syndrome and is one of the few paraneoplastic syndromes found with hematological malignancy. Opsoclonus-myoclonus-ataxia syndrome presents in both pediatric and adult patients with characteristic clinical findings. Other paraneoplastic brainstem syndromes are associated with Ma2 and Hu antibodies, which can cause widespread neurologic dysfunction. The differential for these disorders is broad and also includes pharmacological side effects, infection or postinfectious processes, and neurodegenerative diseases. Although these immune-mediated disorders have been known for many years, mechanisms of pathogenesis are still unclear, and optimal treatment has not been established.
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Affiliation(s)
- Justin R Abbatemarco
- Mellen Center for Multiple Sclerosis Treatment and Research, Neurological Institute, Cleveland Clinic Foundation, Cleveland, OH, United States.
| | - Christian A Vedeler
- Neuro-SysMed, Department of Neurology, Haukeland University Hospital, University of Bergen, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - John E Greenlee
- Neurology Service, George E. Wahlen Veterans Affairs Health Care System, Salt Lake City, UT, United States; Department of Neurology, University of Utah, Salt Lake City, UT, United States
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Cabreira V, Ferreira D, Melo C, Rebelo J, Fonseca J, Sousa R, Sampaio M. Child Neurology: Anti-Hu Encephalitis in an Adolescent With a Mediastinal Seminoma. Neurology 2023; 101:e1640-e1645. [PMID: 37527936 PMCID: PMC10585676 DOI: 10.1212/wnl.0000000000207673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 06/06/2023] [Indexed: 08/03/2023] Open
Abstract
Anti-Hu antibodies are associated with autoimmune syndromes, mainly limbic encephalitis, encephalomyelitis, and painful sensory polyneuropathy (Denny-Brown). We report the case of a 15-year-old boy presenting with epilepsia partialis continua (EPC) found to have a right middle frontal gyrus brain lesion without atrophy or contralateral involvement. After partial resection, neuropathology revealed neuronal loss, reactive gliosis and astrocytosis, and perivascular mononuclear inflammatory infiltrate and features of neuronophagia resembling Rasmussen encephalitis. Suboptimal response to antiseizure drugs and surgery prompted further workup with identification of positive serum anti-Hu antibodies and a mediastinal seminoma. The patient was treated with immunotherapy including steroids, IV immunoglobulin, azathioprine, rituximab, plasmapheresis, and mediastinal lesion resection. However, he continued to experience EPC and psychomotor impairment along with left hemiparesis and dysarthria. Given clinical progression with failure to respond to immunotherapy and antiseizure polytherapy, hemispherotomy was attempted and seizure freedom achieved. A review of the literature found only 16 cases of neurologic presentations associated with anti-Hu antibodies in children, confirming the rarity of EPC in these cases. Thus, this report provides a new observation of germ cell mediastinal tumor associated with anti-Hu antibodies in children, broadening the spectrum of anti-Hu-associated neurologic disorders in children and highlighting the importance of considering antineuronal antibody testing in children presenting with EPC and brain lesions suggestive of Rasmussen encephalitis.
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Affiliation(s)
- Veronica Cabreira
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal.
| | - Daniel Ferreira
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Cláudia Melo
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Joana Rebelo
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Jacinta Fonseca
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Raquel Sousa
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Mafalda Sampaio
- From the Neurology Department (V.C., D.F.), Centro Hospitalar Universitário de São João; Neurosciences and Mental Health Department (V.C., D.F.), Faculty of Medicine, University of Porto; Neuropediatrics Unit (C.M., J.F., R.S., M.S.), Pediatrics Department, Centro Hospitalar Universitário de São João; Department of Pediatrics and Gynecology-Obstetrics (C.M., J.F., R.S., M.S.), Faculty of Medicine, Universidade do Porto; and Pediatric Oncology Department (J.R.), Centro Hospitalar Universitário de São João, Porto, Portugal
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Hou JY, Liu HU, Kuo CY, Liu YH, Lin JJ, Hsieh MY, Hung PC, Cheng YT, Su IC, Wang HS, Chou IJ, Lin KL. The clinical relevance of anti-glutamic acid decarboxylase antibodies in children with encephalitis/encephalopathy. Front Neurosci 2023; 16:1081580. [PMID: 36817097 PMCID: PMC9932768 DOI: 10.3389/fnins.2022.1081580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/31/2022] [Indexed: 02/05/2023] Open
Abstract
Anti-glutamic acid decarboxylase (anti-GAD) antibodies are associated with different types of syndromes. However, few studies have investigated the correlation between anti-GAD antibody titers with clinical severity and outcomes in children with encephalitis/encephalopathy. In this single-center retrospective cohort study, we consecutively enrolled hospitalized children who had encephalitis and/or encephalopathy with positive anti-GAD antibodies in serum and/or cerebrospinal fluid (CSF) from February 2010 to October 2021. Thirty-seven patients were included and divided into high-titer and low-titer groups. The patients with high anti-GAD antibody titers were associated with initial symptoms of language difficulty and ataxia. The level of titers was not associated with severity or outcomes. Anti-GAD antibody titers decreased after immunotherapy, however, the clinical response to immunotherapy was variable. A transient elevation in anti-GAD antibody titers during immunotherapy was noted. Further studies are warranted to investigate the role of anti-GAD antibodies in the pathogenesis and immune mechanisms of encephalitis/encephalopathy.
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Affiliation(s)
- Ju-Yin Hou
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Hsin-Uei Liu
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Cheng-Yen Kuo
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Yi-Hsuan Liu
- Division of Pediatric Critical Care and Pediatric Neurocritical Care Center, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Jainn-Jim Lin
- College of Medicine, Chang Gung University, Taoyuan City, Taiwan,Division of Pediatric Critical Care and Pediatric Neurocritical Care Center, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Meng-Ying Hsieh
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan,College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - Po-Cheng Hung
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan,College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - Yi-Ting Cheng
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - I-Chen Su
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Huei-Shyong Wang
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan,College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - I-Jun Chou
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan,College of Medicine, Chang Gung University, Taoyuan City, Taiwan,I-Jun Chou,
| | - Kuang-Lin Lin
- Division of Pediatric Neurology, Department of Pediatric, Chang Gung Children’s Hospital and Chang Gung Memorial Hospital, Taoyuan City, Taiwan,College of Medicine, Chang Gung University, Taoyuan City, Taiwan,*Correspondence: Kuang-Lin Lin,
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Marion P, Chalus AD, Giorgi L, Bellesme C, Crétien P, Maurey H, Deiva K. Early and Aggressive Treatment May Modify Anti-Hu Associated Encephalitis Prognosis. Neuropediatrics 2023; 54:64-67. [PMID: 35817357 DOI: 10.1055/a-1896-6687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Anti-Hu encephalitis is a paraneoplastic syndrome in adults. In children, rare cases of anti-Hu encephalitis were reported mostly without underlying tumors and clinical outcome are usually severe. Here, we describe a 4-year-old girl who developed cerebellar syndrome with abnormal behavior. The brain magnetic resonance imaging showed several T2/fluid-attenuated inversion recovery bilateral brain lesions and autoimmune assessment showed positive anti-Hu antibodies. Computed tomography scan revealed ganglioneuroblastoma which was surgically removed 3 months after onset. Aggressive immunotherapy including dexamethasone, rituximab, and intravenous immunoglobulins were used and a marked neurological improvement soon after 9 months of onset was observed with the child being able to go back to school. The short delay between diagnosis and start of aggressive immunotherapy demonstrate the paramount importance of early diagnosis and early specific therapy after onset of symptoms.
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Affiliation(s)
- Perrine Marion
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France
| | - Aliénor De Chalus
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France
| | - Laetitia Giorgi
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France
| | - Céline Bellesme
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France
| | - Pascale Crétien
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France
| | - Hélène Maurey
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France.,Pediatric Neurologic Department, National Referral Center for Rare Brain and Spinal Diseases, Le Kremlin-Bicêtre, France
| | - Kumaran Deiva
- Pediatric Neurology Department, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Le Kremlin Bicêtre, France.,Pediatric Neurologic Department, National Referral Center for Rare Brain and Spinal Diseases, Le Kremlin-Bicêtre, France.,Inserm UMR 1184, Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France
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