Long-term assessment of oxcarbazepine in a naturalistic setting: a retrospective study |
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Authors: | Seneviratne U D'Souza W Cook M |
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Institution: | Department of Clinical Neuroscience, St. Vincent's Hospital Melbourne, Fitzroy, Vic., Australia |
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Abstract: | Background – New antiepileptics seem to be better tolerated by patients. The retention rate of an antiepileptic would be a useful indicator of its practical usefulness. Aims – To assess the long-term outcome of oxcarbazepine (OXC) in a naturalistic setting by determining the retention rate. Methods – This is a retrospective study. All epilepsy patients treated with OXC at a tertiary care epilepsy center during a period of 3.5 years were included in this study. Retention rates of OXC at 1 and 3 years were estimated for each cohort group using Kaplan–Meier estimates and corresponding 95% confidence intervals. Results – A total of 98 patients were studied. OXC was used as monotherapy in 14 (14.3%) and as add-on therapy in 84 (85.7%). The mean daily dose was 947 ± 492 mg and 60% received ≤900 mg/day. Using the Kaplan–Meier survival analysis, the retention rates of OXC at 1 and 3 years were estimated to be 0.853 (0.749–0.956) and 0.737 (0.570–0.904), respectively. Conclusions – OXC is well tolerated by patients as both monotherapy and add-on therapy. |
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Keywords: | antiepileptics epilepsy oxcarbazepine retention rate |
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