Early predictors of medical intractability in childhood epilepsy
2003
The goal of this study is identify early predictors of intractability in childhood epilepsy. A cohort of epileptic children living in the northwest sector of Hong Kong was prospectively identified and monitored. Treatment effect was analyzed at the last follow-up before July 1, 2000. Cases were patients who had an average of at least one unprovoked seizure per month during an observational period of at least 2 years. Controls were children having achieved at least 2 seizure-free years. Strong univariate association was observed between intractability and the following factors: high initial seizure frequency, remote symptomatic etiology, infantile spasms and mixed seizure types, abnormal neurologic status, history of status epilepticus, neonatal seizures, and early breakthrough attacks after treatment initiation. Independent predictors of intractability with multiple regression were abnormal neurodevelopmental status, symptomatic etiology, and more than three seizures in the second 6 months after treatment. Our study suggested that risk of developing intractable epilepsy might be predicted, to some extent, at the early course of illness in children with abnormal neurologic status and lack of early response to treatment.
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