Scientific publications

Hyperammonemic encephalopathy related to valproate, phenobarbital, and topiramate synergism

Gomez-Ibañez A, Urrestarazu-Bolumburu E [SP], Viteri-Torres C [SP].
Department of Neurology, Clinica Universidad de Navarra, Pamplona, Spain

Magazine: Epilepsy & Behavior

Date: Jun 21, 2011

Neurophysiology [SP] Neurology [SP]

We present a woman with epilepsy secondary to a lesion in the left frontal lobe. She developed episodes of disorientation and behavioral changes. She was taking valproic acid (1500mg/day), topiramate (200mg/day), and phenobarbital (100mg/day). During an episode, the EEG revealed moderate encephalopathy and ammonia levels were increased (195?g/dL, reference range: 11-60?g/dL). Episodes ceased after withdrawal of valproic acid.

CITATION  Epilepsy Behav. 2011 Jun 21

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