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Updated: Jul 16, 2026

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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
A randomized, controlled trial of surgery for temporal-lobe epilepsy
S Wiebe1, W T Blume, J P Girvin
1Department of Clinical Neurological Sciences, University of Western Ontario, and London Health Sciences Centre, Canada. swiebe@uwo.ca
The New England Journal of Medicine
|August 4, 2001
Summary
Epilepsy surgery significantly improves seizure freedom and quality of life compared to antiepileptic drugs in temporal-lobe epilepsy patients. This randomized trial demonstrates surgery
Area of Science:
- Neurology
- Neurosurgery
- Clinical Trials
Background:
- Randomized trials for epilepsy surgery are challenging but crucial.
- Lack of evidence hinders strong recommendations for surgical interventions.
- This study addresses the need for efficacy and safety data on epilepsy surgery.
Purpose of the Study:
- To assess the efficacy and safety of surgery for temporal-lobe epilepsy.
- To compare surgical outcomes with prolonged antiepileptic drug therapy.
- To evaluate the feasibility of conducting randomized trials for epilepsy surgery.
Main Methods:
- A randomized controlled trial involving 80 patients with temporal-lobe epilepsy.
- Patients were assigned to either surgery (40) or antiepileptic drug treatment (40) for one year.
- Primary outcome: freedom from seizures impairing awareness; secondary outcomes: seizure frequency, quality of life, disability, and mortality.
Main Results:
- 58% of surgical patients were seizure-free versus 8% in the medical group (P<0.001).
- Surgery led to significantly fewer impairing seizures and improved quality of life (P<0.001).
- Adverse effects occurred in 10% of surgical patients; one medical patient died.
Conclusions:
- Surgery is demonstrably superior to prolonged medical therapy for temporal-lobe epilepsy.
- Randomized trials for epilepsy surgery are feasible and provide reliable treatment effect estimates.
- Findings support surgical intervention for select epilepsy patients.

