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West syndrome, can topiramate be on top?
Raidah S Al-Baradie1, Maha A Elseed
1Neuroscience Center, King Fahd Specialist Hospital, PO Box 15215, Dammam 314444, Kingdom of Saudi Arabia. raidah_albaradie@hotmail.com
Insights
Topiramate effectively reduced infantile spasms and ancillary seizures in young patients, showing clinical improvement but not significant EEG changes. The treatment was generally well-tolerated with few side effects.
Area of Science:
- Pediatric Neurology
- Clinical Pharmacology
- Epileptology
Background:
- Infantile spasms, a severe epilepsy syndrome, require prompt and effective treatment.
- West syndrome is characterized by infantile spasms, hypsarrhythmia on EEG, and developmental delay.
- Identifying effective antiepileptic drugs for infantile spasms is crucial for improving patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of Topiramate in treating infantile spasms and associated ancillary seizures.
- To assess the impact of Topiramate on electroencephalogram (EEG) findings in patients with infantile spasms.
- To determine the tolerability and side effect profile of Topiramate in this pediatric population.
Main Methods:
- A retrospective study involving 18 patients diagnosed with infantile spasms.
- Patients were treated with Topiramate, with a maximum dosage of 12 mg/kg/day.
- Data on seizure control, EEG changes, and adverse events were collected and analyzed.
Main Results:
- Topiramate led to spasm freedom in 33% of patients and a ≥50% reduction in spasms in 44%.
- For ancillary seizures, 25% of patients became seizure-free, and 25% experienced a ≥50% reduction.
- While clinical seizure control was observed, EEG improvements were limited, with persistent hypsarrhythmia in 44% of cases. Minimal side effects were reported.
Conclusions:
- Topiramate demonstrates significant efficacy in managing the clinical manifestations of West syndrome.
- The drug's effect on EEG abnormalities in infantile spasms appears limited.
- Topiramate is a well-tolerated treatment option for infantile spasms with a favorable side effect profile.
Objective:
To determine Topiramate efficacy on treatment of infantile spasms and ancillary seizures, and whether there were any improvements on EEG.
Methods:
A retrospective study of 18 patients with infantile spasms recruited from the Pediatric Unit at King Fahd Hospital of the University, Dammam University, Saudi Arabia was carried out between January 2004 and December 2008. Topiramate was used as treatment in 7 males and 11 females aged 2-14 months. The maximum dose was 12 mg/kg/day.
Results:
The etiology in 9 (50%) patients was cryptogenic, 6 (33%) symptomatic, and 3 (17%) idiopathic. After Topiramate treatment 6 (33%) were spasm free, 8 (44%) had ≥50% reduction, 2 (11%) had no change, and one (6%) had worsening of their spasms. Eight patients had ancillary seizures, 2 (25%) were seizure free, 2 (25%) had ≥50% seizure reduction, and 4 (50%) had no change in the ancillary seizure. The EEG showed hypsarrhythmia in 14 (78%). Post Topiramate, the EEG was normal in one (5%), improved in 3 (17%), showed persistent hypsarrhythmia in 8 (44%), and evolved to other features in 3 (17%). Three patients developed side effects such as weight loss and irritability, for which 2 patients stopped the medication.
Conclusion:
Topiramate has a good effect on the clinical features of West syndrome, but not on the EEG. It was tolerated with minimal side effects.
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