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Results of surgery for extratemporal partial epilepsy that began in childhood
1Department of Surgery, (Neurosurgery), Stanford University Medical School, Calif.
Insights
Early surgery for childhood epilepsy can be effective, even for seizures outside the temporal lobe. This study shows significant seizure reduction and behavioral improvement in young epilepsy patients without invasive monitoring.
Area of Science:
- Pediatric Neurology
- Epilepsy Surgery
Background:
- Intractable epilepsy in children often requires surgical intervention.
- Extratemporal seizure foci present unique diagnostic and surgical challenges.
Purpose of the Study:
- To evaluate the efficacy of surgical intervention for intractable extratemporal seizures in children.
- To assess seizure control and behavioral outcomes without invasive preoperative monitoring.
Main Methods:
- Retrospective analysis of 35 consecutive pediatric patients undergoing extratemporal epilepsy surgery.
- Patient selection based on clinical criteria, neuroimaging, and electroencephalography (EEG) with sphenoidal electrodes and long-term monitoring.
- Exclusion of invasive preoperative monitoring.
Main Results:
- 63% of patients achieved seizure freedom or at least a 75% reduction in seizure frequency.
- Outcomes were comparable to series utilizing invasive monitoring for patient selection.
- Significant behavioral improvements were observed post-surgery.
Conclusions:
- Surgery is a viable option for children with intractable extratemporal epilepsy.
- Non-invasive EEG monitoring is sufficient for selecting surgical candidates.
- Early surgical intervention may improve long-term outcomes in pediatric epilepsy.
Abstract:
Thirty-five consecutive patients who underwent surgery for intractable extratemporal seizures originating in childhood are described. Candidates for surgery were selected on the basis of clinical criteria, neurodiagnostic imaging, and an electroencephalographic investigation that included the use of sphenoidal electrodes and long-term monitoring. Invasive preoperative monitoring was not used. Our results, with respect to the control of seizures and behavioral improvement, are comparable with series in which data from invasive recordings were used in the selection process. Sixty-three percent of the 35 patients (76.5% of those operated on after the introduction of long-term electroencephalographic monitoring) became either seizure free or experienced a reduction in their frequency of seizures by at least 75%. The favorable outcome in this group of patients strengthens the argument for early operation in children with intractable epilepsy, even when the seizure focus is outside the temporal lobe.