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Outcome after epilepsy surgery for cortical dysplasia in children
1Section of Pediatric Epilepsy, Epilepsy Center, Department of Neurology, Neurological Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk S-51, Cleveland, OH, 44195, USA, naduvia@ccf.org.
Insights
Epilepsy surgery for children with cortical dysplasia offers a 40-73% seizure freedom rate. Complete removal of the seizure-causing area is key for successful outcomes in pediatric epilepsy surgery.
Area of Science:
- Pediatric Neurosurgery
- Epileptology
- Neurology
Background:
- Medically refractory epilepsy in children due to cortical dysplasia presents significant surgical challenges.
- Cortical dysplasia is a common cause of intractable childhood epilepsy.
- Surgical intervention is often considered for severe cases.
Purpose of the Study:
- To review the literature on outcomes of epilepsy surgery in children with cortical dysplasia.
- To critically evaluate predictors of successful seizure control after surgery.
- To understand the specific challenges in resecting epileptogenic zones in pediatric cortical dysplasia.
Main Methods:
- Comprehensive literature review.
- Focused analysis of pediatric series and meta-analyses on cortical dysplasia surgery.
- Evaluation of prognostic factors for seizure freedom.
Main Results:
- Seizure freedom rates after surgery range from 40% to 73% at approximately 2 years.
- A success rate of 50-55% is commonly reported in studies.
- Complete resection of the epileptogenic lesion/zone is the primary predictor of seizure freedom.
Conclusions:
- Epilepsy surgery can achieve significant seizure reduction in children with cortical dysplasia.
- The success of surgery is highly dependent on the extent of resection of the epileptogenic zone.
- Unique features of cortical dysplasia can complicate complete lesion removal, impacting surgical outcomes.
Background And Purpose:
Epilepsy surgery for medically refractory epilepsy secondary to cortical dysplasia in children poses special challenges. We aim to review the current available literature on the outcome after epilepsy surgery for cortical dysplasia in children and critically evaluate the prognostic predictors of outcome.
Methods:
A comprehensive review of the literature was performed focusing on the outcome after epilepsy surgery for cortical dysplasia in children. Two large recent meta-analyses that included children and adults and several pediatric series of cortical dysplasia in children were reviewed.
Results And Conclusions:
The overall seizure freedom rates range from 40 to 73 %, at about 2 years after surgery; most studies report 50-55% success rate. Complete resection of the epileptogenic lesion/zone remains the most important variable predictive of postoperative seizure freedom. Features unique to cortical dysplasia that limits our ability to ensure complete resection of the epileptogenic zone are reviewed.
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