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Initial outcomes in the Multicenter Study of Epilepsy Surgery.
S S Spencer1, A T Berg, B G Vickrey
1Department of Neurology, Yale University School of Medicine, New Haven, CT 06520-8018, USA. susan.spencer@yale.edu
Neurology
|December 25, 2003
Summary
Resective epilepsy surgery significantly reduces seizures, especially after medial temporal resection, and improves quality of life. Long-term follow-up is crucial for understanding ultimate outcomes.
Area of Science:
- Neurosurgery
- Epileptology
- Quality of Life Research
Background:
- Epilepsy surgery aims to improve seizure control and patient well-being.
- Prospective data on long-term outcomes of resective epilepsy surgery are essential.
Purpose of the Study:
- To prospectively evaluate seizure control, quality of life (QOL), anxiety, and depression after resective epilepsy surgery.
- To compare outcomes between medial temporal and neocortical resections.
Main Methods:
- Prospective cohort study of 396 patients undergoing resective epilepsy surgery.
- Yearly assessments of seizure outcome, QOL, anxiety, and depression using standardized instruments and interviews.
- Follow-up for at least 1 year for 355 patients.
Main Results:
- 75% of patients achieved 1-year seizure remission; medial temporal resections had higher remission rates (77%) than neocortical (56%).
- Quality of life, anxiety, and depression improved significantly within 3 months post-surgery.
- Seizure-free patients showed sustained QOL improvements, while those with ongoing seizures experienced declines over 24 months.
Conclusions:
- Resective epilepsy surgery is effective in reducing seizures, particularly with medial temporal resections.
- Surgery leads to gradual, lasting improvements in QOL, with less impact on anxiety and depression.
- Extended follow-up is necessary to fully ascertain the long-term seizure, QOL, and psychiatric effects of epilepsy surgery.