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目的：探讨左卡尼汀联合步长稳心颗粒治疗冠心病室性早搏的疗效。方法室性早搏患者214例随机分成两组，治疗组(107例)口服步长稳心颗粒9g，每日3次，同时静脉滴注0.9%ns 100ml+左卡尼汀3g qd×12d，继续服用步长稳心颗粒9g，每日3次共4周对照组(107例)单服步长稳心颗粒9g，每日3次共四周。两组治疗4周前后观察24 h动态心电图的变化及症状改善情况。结果联合组总有效率为93.46%，对照组79.44%，两组差异有统计学意义(P<0.05)治疗组症状改善总有效率为98.13%，对照组为86.91%( P<0.05)。结论左卡尼汀联合步长稳心颗粒治疗冠心病室性早搏疗效优于单用步长稳心颗粒。疗效满意，不良反应少，具有明确的临床意义。“,”Objective To evaluate the therapeutic effect on ventricular of coronary heart disease with Levocarnitine for injection and BuchangWenxin granule.Methods 214 patients suffered from ventricular of coronary heart disease were randomly divided into the therapy group (107patients) and the control groups(107patients).the therapy group were given Levocarnitine for injection and BuchangWenxin granule:0.9%ns 100ml+Levocarnitine for injection 3g ivgtt qd×12d , Buchangwenxin granule 9g tid×4w. the control groups Buchangwenxin granule 9g tid×4w. 215 patients were analyzed with 24 hour electrocardiographic monitoring and observation on the improvement of symptoms before and after treatment. Results After 4 weeks′clinical treatment,the rates of effective power of the therapy group were93.46%, the control groups 79.44%.has a statistical significance with comparison the control groups (P<0.05).the rates of symptoms improvement of the therapy group were98.13%,the control groups 86.91%(P<0.05) Conclusion The treatment with BuchangWenxin granule and Levocarnitine for injection on ventricular of coronary heart disease,wel of curative effect and fewer adverse effect,had a definite clinical significance.