Abstract:Objective To explore the factors influencing cognitive impairment after treatment of generalized tonic-clonic seizures in children with sodium valproate.Methods Eighty children admitted to our hospital for generalized tonic-clonic seizures from January 2017 to May 2019 were enrolled as subjects. All the children were treated with sodium valproate. The patients were divided into normal group (≥ 80) and cognitive impairment group (<80) according to intelligence quotient (IQ) scores of the Wechsler Intelligence Scale for Children-China Revised. The influencing factors were analyzed for cognitive impairment after 3 months of treatment with sodium valproate.Results There were significant differences in age of onset, frequency of onset per month, therapeutic dose, and duration of treatment between the two groups (P<0.05). According to the results of regression analysis, onset before age 5 years, no less than 3 times of onset per month, a therapeutic dose of ≥ 35 mg/(kg·d), and no less than 6 months of treatment were risk factors for cognitive impairment after treatment of generalized tonic-clonic seizures in children with sodium valproate (P<0.05). In the cognitive impairment group treated with sodium valproate for 3 months, verbal IQ, performance IQ, and full-scale IQ scores were positively correlated with age of onset (P<0.05) but negatively correlated with frequency of onset per month, therapeutic dose, and duration of treatment (P<0.05).Conclusions Onset before age 5 years, no less than 3 times of onset per month, a therapeutic dose of ≥ 35 mg/(kg·d), and no less than 6 months of treatment are risk factors for cognitive impairment after treatment of generalized tonic-clonic seizures in children with sodium valproate.