Disconnective hemispherectomy for hemispheric dysplasia

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.