Remission of West syndrome associated with valproate hepatotoxicity

A 6-month-old girl developed West syndrome and it remitted in association with valproate-induced hepatic dysfunction. Plasma β-alanine elevated after valproate hepatotoxicity, which seemed to be a possible cause of remission. The patient has been seizure-free with normal electroencephalogram for 12 months without any anticonvulsants. Her developmental milestones were within normal limits at the age of 18 months