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A disease characterized by seizures appearing in the first days of life, subclinical epileptic status, and recognizable EEG patterns with bilateral, multifocal status epilepticus. Patients have profound or severe delayed development with lack of speech, and most patients do not acquire the ability to sit. Additional variable features include axial hypotonia, peripheral hypertonia, and abnormal involuntary movements such as dystonia and choreoathetosis.






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