title: Triphasic waves and spike wave stupor.
abstract: Triphasic waves are usually thought of as indicating a metabolic encephalopathy. Recent investigations have added nonmetabolic etiologies to the differential diagnosis of triphasic waves. Seizures are not generally thought of as associated with triphasic waves. Similarities in the appearance of records with encephalopathies and continuous triphasic waves and those of some patients with the Lennox-Gastaut syndrome have been noted. We presented a case which suggests that the presence of TW in a patient with a metabolic encephalopathy might suggest petit mal status epilepticus.
authors.affiliation: Department of Neurology, University of South Alabama, Mobile 36617.
authors.forename: W J
authors.initials: WJ
authors.lastname: Nowack
authors.forename: J A
authors.initials: JA
authors.lastname: King
mesh_terms: D000368:Aged; D001418:Baclofen / Q000008:administration & dosage / Q000009:adverse effects*; D002540:Cerebral Cortex / Q000187:drug effects / Q000503:physiopathology; D003244:Consciousness Disorders / Q000139:chemically induced* / Q000503:physiopathology; D004569:Electroencephalography / Q000187:drug effects*; D005071:Evoked Potentials / Q000187:drug effects / Q000502:physiology; D005260:Female; D006801:Humans; D009120:Muscle Cramp / Q000188:drug therapy* / Q000503:physiopathology; D009460:Neurologic Examination; D010634:Phenobarbital / Q000008:administration & dosage
chemical_list: D001418:Baclofen; D010634:Phenobarbital