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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
CASPR2 autoimmunity in children expanding to mild encephalopathy with hypertension
Neurology, Volume 94, No. 22, Year 2020
Notification
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Description
ObjectiveTo delineate autoimmune disease in association with contactin-associated protein 2 (CASPR2) antibodies in childhood, we reviewed the clinical phenotype of children with CASPR2 antibodies.MethodsRetrospective assessment of patients recruited through laboratories specialized in autoimmune CNS disease.ResultsTen 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.ConclusionHigh-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. © American Academy of Neurology.
Authors & Co-Authors
Syrbe, Steffen
Germany, Heidelberg
Universitätsklinikum Heidelberg
Stettner, Georg M.
Switzerland, Zurich
Kinderspital Zürich
Borggraefe, Ingo
Germany, Munich
Klinikum Der Universität München
Huppke, Peter
Germany, Gottingen
Georg-august-universität Göttingen
Kern, Jan
Germany, Heidelberg
Universitätsklinikum Heidelberg
Polster, Tilman
Germany, Tubingen
Universitätsklinikum Und Medizinische Fakultät Tübingen
Steinfeld, Robert
Germany, Heidelberg
Universitätsklinikum Heidelberg
Ziegler, Andreas E.
Germany, Heidelberg
Universitätsklinikum Heidelberg
Bien, Christian G.
Germany, Kiel
Christian-albrechts-universität zu Kiel
Statistics
Citations: 19
Authors: 9
Affiliations: 12
Identifiers
Doi:
10.1212/WNL.0000000000009523
ISSN:
00283878
Research Areas
Cancer
Disability
Maternal And Child Health
Noncommunicable Diseases
Study Design
Cohort Study
Participants Gender
Male