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Published on: September 20, 2024
Effect of topiramate on intractable seizures in Taiwanese children
Sung-Tse Li1, Ein-Yiao Shen, Nan-Chang Chiu
1Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan.
Insights
Topiramate effectively reduced seizures in Taiwanese children with difficult-to-treat epilepsy. This adjunctive therapy showed promise for both partial and generalized epilepsy, with a good safety profile.
Area of Science:
- Pediatric Neurology
- Clinical Pharmacology
- Epileptology
Background:
- Intractable epilepsy in children poses significant treatment challenges.
- Existing antiepileptic drug (AED) regimens are often insufficient for severe cases.
- Need for effective adjunctive therapies in pediatric epilepsy populations.
Purpose of the Study:
- To prospectively evaluate topiramate as an adjunctive therapy for intractable epilepsy in Taiwanese children.
- To assess the efficacy and safety of topiramate in pediatric patients with partial and generalized epilepsy.
- To determine seizure reduction rates and identify adverse effects associated with topiramate treatment.
Main Methods:
- Prospective study involving 30 Taiwanese children (2-16 years) with intractable epilepsy.
- Topiramate initiated at 1 mg/kg/day, titrated up to 10 mg/kg/day over 4+ weeks.
- Patients received stable background AEDs; seizure frequency monitored pre- and post-treatment.
Main Results:
- In partial epilepsy (n=18): 33.3% achieved ≥50% seizure frequency reduction; 44.4% became seizure-free.
- In generalized epilepsy (n=12): 33.3% achieved ≥50% seizure frequency reduction; 41.7% became seizure-free.
- Most common adverse effect was poor appetite (10.0%); no idiosyncratic reactions observed.
Conclusions:
- Topiramate demonstrates efficacy as an adjunctive treatment for intractable partial and generalized epilepsy in Taiwanese children.
- The drug is generally well-tolerated, with a favorable safety profile in this pediatric cohort.
- Topiramate represents a viable therapeutic option for children with refractory epilepsy.
Abstract:
We performed a prospective study to evaluate the effect of topiramate as an adjunctive therapy in Taiwanese children with intractable partial epilepsy and generalized epilepsy. Thirty children aged from 2 to 16 years (8.5 +/- 3.8 years) were enrolled in this study. Eighteen children (60.0%) had partial epilepsy, and 12 children (40.0%) had generalized epilepsy. These children were experiencing more than one seizure per month even under a stable antiepileptic regimen treatment. Topiramate was begun at 1 mg/kg x day, and the dosage was raised by 1 mg/kg x day each week. Titration continued for 4 weeks or more. The maximal dosage was 10 mg/kg x day. In children with partial epilepsy, six children (33.3%) achieved > or = 50% frequency reduction, while eight children (44.4%) achieved a seizure-free state. In children with generalized epilepsy, including infantile spasms, four children (33.3%) achieved > or = 50% frequency reduction, while five children (41.7%) achieved a seizure-free state. The most common adverse effect was poor appetite (10.0%). No idiosyncratic reactions to topiramate were found. Only one patient discontinued topiramate because of central hyperventilation. Topiramate can be used as an adjunctive antiepileptic drug for intractable epileptic children in Taiwan.
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