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Disconnective hemispherectomy for hemispheric dysplasia.
Jean Guy Villemure1, Kathleen Meagher-Villemure, Jose Luis Montes
1Neurosurgery Department, Lausanne University Hospital, Switzerland. jean-guy.villemure@chuv.hospvd.ch
Epileptic Disorders : International Epilepsy Journal with Videotape
|November 18, 2003
Summary
Disconnective hemispherectomy significantly improved seizure control in children with extensive hemispheric brain dysplasia. This surgical approach offers a favorable outcome for intractable epilepsy, reducing complication rates.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Epileptology
Background:
- Intractable epilepsy in children often presents with diffuse hemispheric dysplastic pathology.
- Surgical intervention is considered for severe cases unresponsive to medical management.
Purpose of the Study:
- To evaluate the efficacy and safety of disconnective hemispherectomy for intractable epilepsy due to extensive hemispheric dysplasia.
- To assess seizure outcome and complication rates associated with these surgical techniques.
Main Methods:
- Retrospective analysis of 12 pediatric patients with intractable epilepsy and hemispheric dysplasia.
- Surgical treatment involved functional hemispherectomy or peri-insular hemispherotomy.
- Presurgical evaluation guided the selection of disconnective hemispherectomy.
Main Results:
- Over 70% of patients achieved Engel's seizure outcome class I post-surgery.
- An additional 18% experienced satisfactory seizure control.
- One case of unexplained death and one of early hydrocephalus were reported.
Conclusions:
- Disconnective hemispherectomy is a viable surgical option for improving seizure control in pediatric patients with extensive hemispheric dysplastic pathology.
- These disconnective techniques appear to lower complication rates compared to traditional hemispherectomy for this specific condition.