A Retrospective Analysis of the Long-Term Outcome of Drug-Resistant Epilepsy in Children Treated in Urban India

OBJECTIVE: To study the outcome of childhood-onset drug-resistant epilepsy. METHODS: Fifty-five patients with drug-resistant epilepsy, meeting inclusion criteria, were identified from the Pediatric Neurology Clinic database with seizure onset less than age 13 years and a minimum follow-up of 5 years. Seizure remission was defined as no more than 1 seizure/year. Kaplan-Meier analysis was used to calculate the annual probability of seizure remission. Chi-square/Kruskal-Wallis tests were used to detect differences in predictors between those with seizure remission, ≥75% improvement and <75% improvement based on caregiver reports. RESULTS: Median follow-up was 11 years. Of 55, 22 (40%) were in seizure remission at last contact; 14 (25.4%) improved by ≥75%; 19 (34.5%) experienced <75% improvement. Annual remission probability was 3% in IQ ≥70 group and 2.48% in IQ <70 group (P = .126). CONCLUSION: This study shows patients with drug-resistant epilepsy treated in urban India can expect an overall remission rate of 2% per year starting from the third year of follow-up.