Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort

Background. Autoimmune encephalitis (AE) is a rapidly progressive encephalopathy caused by antibodies targeting neurons in the central nervous system generating specific immune responses. It is increasingly recognized in children. Objective. To describe clinical, neuroimaging, and laboratory feature...

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Main Authors: Bissene Douma, Thouraya Ben Younes, Hanene Benrhouma, Zouhour Miladi, Imen Zamali, Aida Rouissi, Hedia Klaa, Ichraf Kraoua, Melika Ben Ahmed, Ilhem Ben Youssef Turki
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Journal of Immunology Research
Online Access:http://dx.doi.org/10.1155/2021/6666117
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author Bissene Douma
Thouraya Ben Younes
Hanene Benrhouma
Zouhour Miladi
Imen Zamali
Aida Rouissi
Hedia Klaa
Ichraf Kraoua
Melika Ben Ahmed
Ilhem Ben Youssef Turki
author_facet Bissene Douma
Thouraya Ben Younes
Hanene Benrhouma
Zouhour Miladi
Imen Zamali
Aida Rouissi
Hedia Klaa
Ichraf Kraoua
Melika Ben Ahmed
Ilhem Ben Youssef Turki
author_sort Bissene Douma
collection DOAJ
description Background. Autoimmune encephalitis (AE) is a rapidly progressive encephalopathy caused by antibodies targeting neurons in the central nervous system generating specific immune responses. It is increasingly recognized in children. Objective. To describe clinical, neuroimaging, and laboratory features, treatment, and outcome in a cohort of Tunisian children with AE. Methods. We conducted a retrospective review of the medical records of all children attending the Department of Child and Adolescent Neurology (Tunis) with autoimmune encephalitis between 2004 and 2020. Clinical, neuroimaging, laboratory features, therapeutic data, and outcome were analyzed. Results. Nineteen children were included in the study (12 girls and 7 boys). The median age at diagnosis was 7.68 years (range: 10 months-13 years). The most frequent manifestations were seizures and behavioral disorders. Eleven cases were diagnosed with anti-NMDA receptor encephalitis, 4 cases with anti-Ma2 encephalitis, 3 cases with anti-GAD encephalitis, and 1 case with anti-SOX1 encephalitis. Brain MRI showed increased T2 and fluid-attenuated inversion recovery (FLAIR) signal of the temporal lobe in 5 patients. Eighteen patients showed improvement following first-line immunotherapy (high-dose corticosteroids, intravenous immunoglobulin). One patient with anti-GAD encephalitis died despite escalating immunotherapy. Conclusion. Diagnosis of autoimmune encephalitis is challenging in children, because of misleading presentations. An early and accurate diagnosis is important to enable proper therapeutic interventions.
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spelling doaj-art-e41b602af7574fbea3fbf76cd741638d2025-08-20T03:26:33ZengWileyJournal of Immunology Research2314-88612314-71562021-01-01202110.1155/2021/66661176666117Autoimmune Encephalitis in Tunisia: Report of a Pediatric CohortBissene Douma0Thouraya Ben Younes1Hanene Benrhouma2Zouhour Miladi3Imen Zamali4Aida Rouissi5Hedia Klaa6Ichraf Kraoua7Melika Ben Ahmed8Ilhem Ben Youssef Turki9Research Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaUniversité de Tunis El Manar, Faculté de Médecine de Tunis, 1007 Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaUniversité de Tunis El Manar, Faculté de Médecine de Tunis, 1007 Tunis, TunisiaResearch Laboratory LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis, TunisiaBackground. Autoimmune encephalitis (AE) is a rapidly progressive encephalopathy caused by antibodies targeting neurons in the central nervous system generating specific immune responses. It is increasingly recognized in children. Objective. To describe clinical, neuroimaging, and laboratory features, treatment, and outcome in a cohort of Tunisian children with AE. Methods. We conducted a retrospective review of the medical records of all children attending the Department of Child and Adolescent Neurology (Tunis) with autoimmune encephalitis between 2004 and 2020. Clinical, neuroimaging, laboratory features, therapeutic data, and outcome were analyzed. Results. Nineteen children were included in the study (12 girls and 7 boys). The median age at diagnosis was 7.68 years (range: 10 months-13 years). The most frequent manifestations were seizures and behavioral disorders. Eleven cases were diagnosed with anti-NMDA receptor encephalitis, 4 cases with anti-Ma2 encephalitis, 3 cases with anti-GAD encephalitis, and 1 case with anti-SOX1 encephalitis. Brain MRI showed increased T2 and fluid-attenuated inversion recovery (FLAIR) signal of the temporal lobe in 5 patients. Eighteen patients showed improvement following first-line immunotherapy (high-dose corticosteroids, intravenous immunoglobulin). One patient with anti-GAD encephalitis died despite escalating immunotherapy. Conclusion. Diagnosis of autoimmune encephalitis is challenging in children, because of misleading presentations. An early and accurate diagnosis is important to enable proper therapeutic interventions.http://dx.doi.org/10.1155/2021/6666117
spellingShingle Bissene Douma
Thouraya Ben Younes
Hanene Benrhouma
Zouhour Miladi
Imen Zamali
Aida Rouissi
Hedia Klaa
Ichraf Kraoua
Melika Ben Ahmed
Ilhem Ben Youssef Turki
Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort
Journal of Immunology Research
title Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort
title_full Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort
title_fullStr Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort
title_full_unstemmed Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort
title_short Autoimmune Encephalitis in Tunisia: Report of a Pediatric Cohort
title_sort autoimmune encephalitis in tunisia report of a pediatric cohort
url http://dx.doi.org/10.1155/2021/6666117
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