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目的评价冠心病合并左心功能不全患者在常规治疗基础上加用左卡尼汀对左心室射血分数(LVEF)的影响。方法120例冠心病合并左心功能不全(LVEF<40%)的患者进入本项试验。所有患者在常规治疗的基础上加用左卡尼汀3 g/d,静脉滴注治疗半个月,观察患者临床情况及超声心动图指标的变化。结果120例患者无药物相关不良事件发生。LVEF由(32.3±6.2)%上升至(42.1±10.7)%(P<0.001),运动耐量(NYHA分级)明显改善。结论冠心病合并左心功能不全的患者在常规治疗基础上加用左卡尼汀是安全的,能明显提高左室射血分数和改善运动耐量。
Objective To evaluate the effect of levocarnitine on left ventricular ejection fraction (LVEF) in patients with coronary heart disease complicated with left ventricular dysfunction. Methods One hundred and twenty patients with coronary heart disease and left ventricular dysfunction (LVEF <40%) entered this study. All patients on the basis of conventional therapy plus levocarnitine 3g / d, intravenous infusion for half a month to observe the clinical status of patients and echocardiographic changes. Results 120 patients without drug-related adverse events. LVEF increased from (32.3 ± 6.2)% to (42.1 ± 10.7)% (P <0.001), and exercise tolerance (NYHA classification) improved significantly. Conclusions Patients with coronary heart disease complicated with left ventricular dysfunction are safe on the basis of routine treatment with L-carnitine, which can significantly improve left ventricular ejection fraction and improve exercise tolerance.