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Electrophoretic Delivery of γ-aminobutyric Acid GABA into Epileptic Focus Prevents Seizures in Mice
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Focal Epilepsy in Children With Tuberous Sclerosis Complex: Does Vigabatrin Control Focal Seizures?

Sufang Lin1,2,3, Jianxiang Liao2, Xia Zhao2

  • 1Department of Pediatrics, The First Affiliated Hospital 162698Jinan University, Guangzhou, Guangdong, China.

Journal of Child Neurology
|March 24, 2022
PubMed

Insights

Vigabatrin effectively treats focal epilepsy in tuberous sclerosis complex. Seizure freedom is more likely in children with later seizure onset and no tuber calcification.

Area of Science:

  • Neurology
  • Pediatric Epilepsy
  • Pharmacology

Background:

  • Tuberous sclerosis complex (TSC) is a genetic disorder that can cause epilepsy.
  • Focal epilepsy is a common manifestation of TSC, often requiring pharmacological intervention.
  • Vigabatrin is an anti-epileptic drug with established efficacy in certain epilepsy syndromes.

Purpose of the Study:

  • To evaluate the efficacy and safety of vigabatrin in pediatric patients with focal epilepsy and TSC.
  • To identify predictors of positive treatment response to vigabatrin in this specific patient population.

Main Methods:

  • Retrospective review of 85 patients with focal epilepsy and TSC treated with vigabatrin.
  • Analysis of seizure outcomes, including seizure freedom and responder rates (≥50% seizure reduction).
  • Assessment of patient demographics, including age at seizure onset and presence of tuber calcification.

Main Results:

  • 23.5% of patients achieved seizure freedom (>12 months), and 52.9% were responders.
  • Patients achieving seizure freedom had a higher median age at seizure onset (15 months) compared to responders (5 months) and non-responders (6 months).
  • Fewer seizure-free patients had calcification in their largest tubers, suggesting a potential predictive factor.

Conclusions:

  • Vigabatrin is an effective treatment option for focal epilepsy in children with TSC.
  • Later infantile onset of focal seizures and absence of calcification in the largest tubers are associated with a higher likelihood of seizure freedom with vigabatrin.
  • These findings can aid in optimizing treatment strategies for pediatric epilepsy in TSC.

Keywords:
childfocal seizurestuber calcificationtuberous sclerosis complexvigabatrin

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