Progressive encephalopathy with edema, hypsarrhythmia, and optic atrophy (PEHO syndrome)

Abstract

Progressive encephalopathy with edema, hypsarrhythmia, and optic atrophy syndrome is a recently described rare disorder of infantile regression, intractable seizures, and cerebellar atrophy that occurs almost exclusively in the Finnish population. We report the first North American child with this condition.