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目的:分析左乙拉西坦(LEV)单药或联合用药治疗婴儿癫的长程保留率。方法回顾性分析2006年7月至2007年6月应用LEV治疗的婴儿癫患儿的临床资料。结果60例服用LEV的癫患儿,部分性发作20例,全面性发作19例,癫综合征21例,其中难治性癫21例。23例LEV单药治疗,37例以LEV作为添加药物联合治疗。LEV首剂量10 mg/kg · d,每日2次口服,每周加量10 mg/kg,加量调整直至取得最佳疗效和耐受性。LEV治疗6个月、1年、2年、3年及4年的保留率分别为95.0%、75.0%、60.0%、51.7%和38.3%。最主要停药原因为缺乏疗效(43.2%)。COX回归模型提示,病程>1个月(RR=2.91,95%CI:1.16~7.30)及难治性癫(RR=2.30,95%CI:1.22~4.32)是患儿停药的危险因素(P均<0.05)。患儿服药后发作频率较基线水平明显减少(P1 month (RR=2.91, 95%CI:1.16~7.30) and refractory epilepsy (RR=2.30, 95%CI:1.22~4.32) were risk factors of withdrawal (all P<0.05). After treatment, the seizure frequency signiifcantly reduced compared with baseline (P<0.01). To the end of the follow-up, the efifciency was 100%and the complete remission rate was 69.57%in 23 cases continued treatment. The main side effect were fatigue (56.0%), and sleep increased, irritability, and so on. Conclusions LEV monotherapy or combination therapy has well long-term retention rate, maintains well efifcacy and tolerability in infant epilepsy.