Anti-GQ1b antibody syndrome encompasses Miller Fisher syndrome and its related disorders. We retrospectively identified 11 pediatric patients (5.4-18 years old) with anti-GQ1b antibody syndrome. Diagnoses of patients included acute ophthalmoparesis (n = 6), classical Miller Fisher syndrome (n = 2), Miller Fisher syndrome/Guillain-Barré syndrome (n = 1), acute ataxic neuropathy (n = 1), and pharyngeal-cervical-brachial weakness (n = 1). Nine patients (81.8%) fully recovered. Maturational change in GQ1b antigen expression and the accessibility of anti-GQ1b antibodies might be the cause of the difference of clinical manifestations in children with anti-GQ1b antibody syndrome.
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