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Temporal lobectomy in early childhood
M Duchowny1, B Levin, P Jayakar
1Department of Neurology, Miami Children's Hospital, Florida 33155.
Insights
Temporal lobectomy in children under 12 with drug-resistant epilepsy offers significant seizure control. Tailored surgical approaches lead to positive outcomes, improving quality of life for young patients.
Area of Science:
- Pediatric Neurology
- Neurosurgery
Background:
- Medically intractable temporal lobe epilepsy in children can lead to severe psychosocial and medical issues.
- Early surgical intervention is crucial for long-term outcomes in pediatric epilepsy.
Purpose of the Study:
- To evaluate the efficacy of tailored temporal lobectomy in preadolescent children with refractory temporal lobe seizures.
- To assess the neurobiological underpinnings of epilepsy in this pediatric cohort.
Main Methods:
- Retrospective analysis of 16 children (mean age 7 years) undergoing anterior temporal lobectomy for intractable temporal lobe epilepsy.
- Surgical tailoring based on neuroimaging findings and epileptogenic zone mapping.
- Post-operative seizure outcome assessment and neuropathological examination.
Main Results:
- 11 out of 16 children became seizure-free.
- Three children showed 90% seizure improvement, one had 50% improvement, and one remained unchanged.
- Prenatal neurogenesis abnormalities were common; mesial temporal sclerosis was rare.
Conclusions:
- Tailored temporal lobectomy in children under 12 with refractory epilepsy is highly effective.
- Early surgical intervention can significantly improve seizure control and potentially mitigate long-term morbidity.
- Understanding neuropathological findings is key to optimizing surgical selection and outcomes.
Abstract:
Children with medically resistant temporal lobe seizures that persist into adolescence often experience psychosocial deterioration and medical morbidity. It is therefore especially important to evaluate the contribution of surgical therapy in preadolescent children. We describe our experience with temporal lobectomy in 16 children less than 12 years (mean age 7 years) who had intractable seizures of temporal lobe origin. Structural lesions were identified on neuroimaging studies in 11 patients. In all patients, the standard anterior temporal lobectomy was tailored according to the extent of the lesion and epileptogenic field. At follow-up, 11 children were seizure-free, three were 90% improved, one was 50% improved, and one was unchanged. Neuropathological abnormalities were identified in virtually all children. Prenatally acquired abnormalities of neurogenesis were the most common, whereas mesial temporal sclerosis was found in only two children. We conclude that tailored temporal lobectomy in the first decade of life is highly beneficial in carefully selected children with medically refractory seizures.