Using a single-patient (n = 1) clinical trial, we studied a 7-year-old boy who presented with unsatisfactory progress in school and whose electroencephalogram had very active independent frontal spike discharges. He had not had clinical seizures. The patient was randomized to receive valproic acid, 125 mg twice daily, (four periods) or matching placebo (four periods) over 8 weeks. Primary endpoints were the Wechsler Intelligence Scale for Children-Revised Coding sub-test and a handwriting sample. Behavior was monitored using teacher's and parent's Conners questionnaires. His score on the Wechsler Intelligence Scale for Children-Revised Coding subtest was significantly improved while he was taking valproic acid (P = .03). His electroencephalogram improved from a pretreatment recording of 28 spike discharges per minute to a normal recording while on valproic acid. We conclude that in this patient, valproic acid had a cognitive enhancing effect, probably by reducing epileptiform discharges.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.