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Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
Published on: September 20, 2024
Refractory epilepsy in preschool children with tuberous sclerosis complex: Early surgical treatment and outcome
Martine Fohlen1, Delphine Taussig1, Sarah Ferrand-Sorbets1
1Pediatric Neurosurgery Unit, Rothschild Foundation Hospital, Paris, France.
Insights
Early epilepsy surgery for tuberous sclerosis complex (TSC) significantly improves seizure control and development. Prompt surgical intervention, particularly before 20 months, offers the best outcomes for children with catastrophic epilepsy.
Area of Science:
- Pediatric Neurology
- Neurosurgery
- Epileptology
Background:
- Tuberous sclerosis complex (TSC) frequently causes focal epilepsy.
- Epilepsy surgery is a recognized treatment for drug-resistant epilepsy in TSC.
- Early intervention may impact neurodevelopmental outcomes.
Purpose of the Study:
- To evaluate the efficacy of early epilepsy surgery in TSC.
- To assess the impact of surgical timing on seizure frequency.
- To analyze developmental outcomes following early surgical management.
Main Methods:
- Retrospective study of 15 pediatric patients (<6 years) undergoing resective epilepsy surgery for TSC.
- Invasive monitoring (EEG) used in 14 patients; corticography in one.
- Analysis of seizure outcomes (Engel classification) and neurodevelopmental status.
Main Results:
- All patients had epilepsy onset before 5 months.
- 86% achieved significant seizure reduction (Engel I-II), with 60% seizure-free (Engel IA).
- In patients operated on before 20 months with catastrophic epilepsy, 77% were Engel IA, 23% Engel II; none developed autism, and 44% achieved normal development.
Conclusions:
- Early epilepsy surgery is highly effective for TSC-associated epilepsy.
- Timely surgical intervention correlates with better seizure control and developmental progress.
- Invasive monitoring aids successful surgical outcomes; multicenter studies are needed.
Purpose:
Epilepsy surgery has been shown to be effective in treating focal epilepsy related to tuberous sclerosis complex (TSC). We analyzed the advantage of early surgical management in terms of seizure frequency and development.
Method:
We retrospectively studied the 15 patients younger than 6 years who underwent resective surgery between 2006 and 2016. Fourteen of them had invasive monitoring while the 15th was operated on under corticography.
Results:
Epilepsy began before 5 months of age in all patients. Overall 13 patients (86%) had a dramatic improvement of epilepsy after surgery (Engel 1 and 2) including 9 patients (60%) seizure free (Engel 1 A). In the group of 9 patients younger than 20 months at the time of surgery who presented with catastrophic epilepsies, 77% are Engel 1 A and the other 23% Engel 2. In this subpopulation, no one developed autism and four (44%) regained normal development.
Conclusions:
In early onset epilepsies associated with TSC, surgical treatment is highly effective, in particular when performed early. Invasive monitoring contributes to the successful outcome. Those data have to be confirmed by multicentric studies including quantitative analyses of the recordings.
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