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目的:观察心脏再同步起搏治疗对慢性心力衰竭的临床疗效。方法:31例慢性心力衰竭合并室内传导阻滞患者行心脏再同步起搏治疗,全部患者成功经冠状静脉植入左心室导线,分别于3月和6月随访,观察QRS波宽度,左心室收缩、舒张末内径,左心室射血分数。结果:心脏再同步治疗后患者QRS时限由术前的(160±32)ms减少到术后的(118±21)ms,P<0.05。术后的第3月和第6月,患者LVEDD由术前(74.5±14.1)mm减少到(66.2±9.5)mm、(64.3±11.2)mm,P<0.01;患者LVESD由术前(65.2±10.2)mm减少到(57.3±9.2)mm、(56.2±10.9)mm,P<0.01;LVEF由术前的(0.24±0.09)增加到(0.36±0.11)、(0.38±0.14),P<0.01。结论心脏再同步化治疗是慢性心力衰竭治疗的有效方法。
Objective: To observe the clinical effect of cardiac resynchronization pacing in patients with chronic heart failure. Methods: Thirty-one patients with chronic heart failure complicated with conduction block were treated with cardiac resynchronization pacing. All patients were successfully implanted with left ventricular lead via coronary vein. The patients were followed up in March and June respectively. The QRS width, left ventricular , End-diastolic diameter, left ventricular ejection fraction. Results: The QRS duration decreased from (160 ± 32) ms preoperatively to (118 ± 21) ms post cardiac resynchronization therapy, P <0.05. The LVEDD decreased from (74.5 ± 14.1) mm to (66.2 ± 9.5) mm, (64.3 ± 11.2) mm, P <0.01 at the third month and the sixth month after operation. The LVEDD decreased from 65.2 ± P <0.01). The LVEF increased from (0.24 ± 0.09) to (0.36 ± 0.11), (0.38 ± 0.14), P <0.01 . Conclusions Cardiac resynchronization therapy is an effective method for the treatment of chronic heart failure.