Source:Brain and Development
Author(s): Masahiro Nishiyama, Hiroaki Nagase, Masaaki Matsumoto, Kazumi Tomioka, Hiroyuki Awano, Tsukasa Tanaka, Daisaku Toyoshima, Kyoko Fujita, Azusa Maruyama, Yoshinobu Oyazato, Keisuke Saeki, Kazuhiro Shiraishi, Satoshi Takada, Kimihiko Kaneko, Toshiyuki Takahashi, Ichiro Nakashima, Kazumoto Iijima
BackgroundThe clinical features of patients with very early-onset acquired demyelinating syndrome (ADS) with the anti-myelin oligodendrocyte glycoprotein (MOG) antibody are unknown. We investigated the clinical characteristics and described detailed treatment of weekly intramuscular interferon β-1a (IFNβ-1a) in children aged <4years with ADS and the anti-MOG antibody.MethodsWe conducted a retrospective chart review of patients with anti-MOG positivity who were diagnosed as having multiple sclerosis (MS) at <4years of age.ResultsSubjects comprised 2 boys and 2 girls. Initial symptoms included ataxia, facial paresis, status epilepticus, and encephalopathy. Abnormal lesions on magnetic resonance imaging scans were often detected in the brainstem and cerebellum as well as the cerebrum. All patients started receiving IFNβ-1a at age 3.1–3.5years. The initial doses ranged from 3 to 6μg, which were 1/10–1/5 doses, respectively, for adults. During 0.6–4.3years of IFNβ-1a administration, all patients had flu-like symptoms, and 1 patient had an increased liver enzyme level. Although 1 patient discontinued IFNβ-1a therapy because of frequent relapses, no patient discontinued therapy due to severe adverse events.ConclusionsThis case series adds novel information regarding the clinical features of children <4years old with ADS and the anti-MOG antibody.
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