摘要
目的 观察三腔双心室起搏治疗扩张型心肌病的临床效果 ,探讨三腔双心室起搏的治疗机制及目前存在的问题。方法 患者两例均为男性 ,平均年龄 5 7.5岁。诊断 :扩张型心肌病 ,完全性左束支传导阻滞 ,心功能Ⅲ～Ⅳ级 (NYHA)。两位患者均进行双心室起搏 ,左心室起搏通过冠状静脉窦植入 2 188导线 ,于其血管分支内进行左心室起搏。左、右心室的导线通过Y型转换器与双腔起搏器连接。术前、术后一周及术后 6个月应用十二导联心电图、超声心动图及活动耐量 (6分钟步行距离 )进行评价 ,观察双心室起搏的临床效果。结果 双心室起搏后 ,患者心功能得到明显改善 ,左室射血分数从 0 .2 3提高至 0 .48,左室充盈时间延长 ,心功能改善至Ⅱ级。结论 临床效果观察提示 。
Objective To observe the effect of biventricular pacing in treating dilated cardiomyopathy, and try to study the theory of treatment and the existing problems of biventricular pacing.Methods The patients, 2 male, 57.5 years old on average, with dilated cardiomyopathy and left bundle branch block, received biventricular pacing and the 2188 coronary vein lead was insert into the branch of coronary sinus to pace left ventricle. The patients were studied by ECG, echography and the distance of 6 minutes in the time before pacing, 1 week after pacing and 6 months after pacing, respectively.Results After biventricular pacing, the cardiac function was significantly improved. The LVEF was increased from 23% to 48%. The left ventricular filling time increased. The NYHA class of the patients improved from Ⅲ～Ⅳ to Ⅱ.Conclusion The biventricular pacing could improve hymodynamic effect in patients with dilated cardiomyopathy and left bundle branch block.
出处
《中国介入心脏病学杂志》
2001年第B12期34-36,共3页
Chinese Journal of Interventional Cardiology
