title: A reversible cause of coma in epilepsy.
abstract: A 13-year-old girl presented to our emergency department in a comatose state with history of epilepsy. Evaluation of the common causes of altered sensorium in the setting of background epilepsy turned out to be negative. Ultimately she was diagnosed to be having reversible coma due to valproate-induced hyperammonaemia.
authors.affiliation: Department of Neurology,  Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh,  India.
authors.forename: Praveen
authors.initials: P
authors.lastname: Kesav
authors.forename: Vishnu
authors.initials: V
authors.lastname: V Y
authors.forename: Dheeraj
authors.initials: D
authors.lastname: Khurana
mesh_terms: D000293:Adolescent; D000927:Anticonvulsants / Q000009:adverse effects*; D003128:Coma / Q000139:chemically induced*; D004827:Epilepsy / Q000188:drug therapy*; D005260:Female; D006801:Humans; D022124:Hyperammonemia / Q000139:chemically induced* / Q000150:complications*; D014635:Valproic Acid / Q000009:adverse effects*
chemical_list: D000927:Anticonvulsants; D014635:Valproic Acid