title: Drop attacks: an ominous change in the evolution of partial epilepsy.
abstract: We studied 16 patients with partial epilepsy and drop attacks. The drop attacks appeared 1 to 29 years after onset of epilepsy; 15 patients had these attacks weekly or daily, despite therapy. After the appearance of drop attacks, 6 patients had severe mental disorders, and social life was disrupted in 13. There was a high rate of adversive seizures, atypical absences, and diffuse spike-wave discharges in the EEG, electroclinical features that suggest a frontal origin of epilepsy. Drop attacks are ominous because they occur so frequently, resist therapy, are physically dangerous, and portend personality change.
mesh_terms: D000293:Adolescent; D000328:Adult; D001921:Brain / Q000503:physiopathology; D004569:Electroencephalography; D004827:Epilepsy / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis / Q000503:physiopathology; D008875:Middle Aged