Atypical Benign Partial Epilepsy of Childhood

Abstract
Seven children with an unusual epileptic syndrome are reported. The main clinical features in each patient included onset between 2.5-6 yr of age, the occurrence of several types of seizure (especially partial motor fits, atypical absences and myo-atonic seizures), and the persistance of normal neurological and mental function throughout the course. The EEG picture was characterized by a striking contrast between waking records, which usually displayed focal paroxysms, and sleep tracings which showed an almost continuous, diffuse, slow spike-wave activity. Although the electroclinical features suggested the diagnosis of Lennox-Gastaut syndrome or myoclonic epilepsy, the seizures remitted spontaneously in the 5 oldest patients and could well do so in the 2 youngest ones. The clinical and electroencephalographic features that permit these cases of atypical benign partial epilepsy to be distinguished from the more severe myoatonic epileptic syndromes of childhood are discussed.