کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5632916 | 1581253 | 2017 | 4 صفحه PDF | دانلود رایگان |
BackgroundValproic acid may induce hyperammonemic encephalopathy. Various electroencephalogram (EEG) abnormalities have been documented in association with this condition, but not burst suppression, an abnormal EEG pattern that is associated with severe encephalopathy.MethodsSerial EEGs, clinical observations, and laboratory findings were analyzed.Patient DescriptionThis 13-year-old girl with autism and intractable epilepsy experienced increased seizures; her valproic acid dose was increased and other antiepileptic drugs were administered. She became lethargic, and her EEG showed a burst suppression pattern. Her ammonia concentration was increased to 101 μmol/L and her valproic acid level was increased to 269.9 mg/L. Valproic acid was discontinued and carnitine was administered. Subsequently she became more alert, her ammonia concentration decreased, and her EEG changed from a burst suppression pattern to a continuous pattern. Within three days, she was back to her baseline level of functioning.ConclusionsValproic acid-induced hyperammonemic encephalopathy can produce a burst suppression EEG patternin the patient's.
Journal: Pediatric Neurology - Volume 73, August 2017, Pages 88-91