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Intraoperative electrocorticography in children with medically intractable epilepsy
T Tanaka1, K Hashizume, M Kunimoto
1Department of Neurosurgery, Asahikawa Medical College, Hokkaido.
Neurologia Medico-Chirurgica
|July 1, 1996
Summary
Intraoperative electrocorticography (ECoG) effectively located epileptic foci in children, improving surgical outcomes for intractable epilepsy. This technique helps identify seizure origins, leading to better seizure control and reduced medication needs.
Area of Science:
- Pediatric Neurology
- Neurosurgery
- Epileptology
Background:
- Intractable epilepsy in children often requires surgical intervention.
- Accurate localization of epileptic foci is crucial for successful surgical outcomes.
- Intraoperative electrocorticography (ECoG) is a tool used to guide epilepsy surgery.
Observation:
- ECoG was performed on 20 children undergoing epilepsy surgery.
- Seventeen patients demonstrated epileptiform discharges on preresection ECoG.
- Hyperventilation induced or enhanced epileptiform activity in 17 patients and provoked seizures in 10.
Findings:
- Resection of foci in non-eloquent areas led to seizure freedom or improvement in 15 out of 17 patients.
- Two patients with foci in eloquent areas experienced persistent seizures.
- Intraoperative ECoG successfully localized epileptic foci for resection.
Implications:
- Intraoperative ECoG enhances the success rate of epilepsy surgery in pediatric patients.
- This method aids in achieving seizure control and improving quality of life.
- ECoG is a valuable tool for optimizing surgical planning in complex epilepsy cases.