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Surgical management of epilepsy
J R Smith1, H F Flanigin, D W King
1Department of Surgery (Neurosurgery), Medical College of Georgia, Augusta.
Southern Medical Journal
|June 1, 1989
Summary
Epilepsy surgery, including ablative surgery and corpus callosotomy, offers significant seizure reduction for eligible patients. Despite many candidates, surgical treatment for epilepsy remains underutilized.
Area of Science:
- Neurology
- Neurosurgery
Background:
- Approximately 300,000 individuals in the U.S. have medically uncontrolled focal epilepsy.
- An estimated 40,000 of these patients are surgical candidates, yet only 1% undergo surgery, indicating significant underuse of epilepsy surgery.
Purpose of the Study:
- To review the efficacy of different surgical interventions for medically uncontrolled focal epilepsy.
- To highlight the underutilization of epilepsy surgery despite patient candidacy.
Main Methods:
- Review of surgical candidacy criteria for ablative surgery (seizure focus localization via electrode recordings).
- Review of candidacy criteria for corpus callosotomy (multiple seizure types, nonfocal EEG abnormalities).
- Inclusion of outcomes for physiologic hemispherectomy in patients with infantile hemiplegia and seizures.
Main Results:
- Nearly two-thirds of patients undergoing ablative surgery achieve seizure freedom or rare seizures.
- Approximately half of patients undergoing corpus callosotomy experience at least a 50% reduction in seizure frequency.
- Physiologic hemispherectomy can lead to marked seizure control improvement in specific pediatric cases.
Conclusions:
- Epilepsy surgery, including ablative procedures and corpus callosotomy, provides substantial seizure control benefits for carefully selected patients.
- Addressing the underuse of epilepsy surgery is crucial to improve outcomes for the large population of eligible individuals.