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  • Title: Clobazam as add-on therapy in children with epileptic encephalopathy.
    Author: Silva RC, Montenegro MA, Guerreiro CA, Guerreiro MM.
    Journal: Can J Neurol Sci; 2006 May; 33(2):209-13. PubMed ID: 16736732.
    Abstract:
    RATIONALE: Clobazam has been used successfully in adults and children with partial epilepsy. The purpose of this study was to evaluate the safety and efficacy of clobazam as add-on therapy in children with epileptic encephalopathy. METHODS: This was a retrospective study conducted at the pediatric epilepsy clinic of our university hospital. Children less than 18-years of age with epileptic encephalopathy were included in the study. Clobazam was introduced as add-on therapy, starting with 5 mg/Kg/day and increased in minimally effective doses, up to the maximum tolerated dose. Data were obtained from clinical files and follow-up visits. RESULTS: Ninety-seven patients were included in the study (39 girls), aged between 1 and 17-years-old (mean = 9.9). Twenty-six patients had Lennox-Gastaut syndrome, seven had myoclonic astatic epilepsy, nine had West syndrome and, in 57 patients, the type of epileptic encephalopathy could not be determined. Clobazam dosage ranged from 5 to 60 mg/day (mean = 37.5 mg/day). Forty (41%) patients presented with adverse events, most of which were mild and transitory, and clobazam needed to be withdrawn in only 11 patients. Nine (9.2%) patients were seizure-free after clobazam adjunctive therapy. In 11 (11.3%) patients seizure improvement was >75%, in 16 (16.5%) it was >50%, in 17 (17.5%) improvement was <50% and in 44 (45.5%) there was no change in seizure frequency. Three patients were lost to follow-up. In 85% of the patients with seizure improvement, the results lasted for more than one year. CONCLUSION: Clobazam is safe and effective in the treatment of epileptic encephalopathies of childhood.
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