摘要
目的探讨缺血性心肌病(ICM)患者的动态心电图特征及其心源性死亡的危险因素。方法回顾性分析68例ICM住院患者的临床资料和动态心电图结果。结果①动态心电图显示:可见各种类型心律失常,以室性心律失常最常见(94.1%);ST-T呈广泛持续性改变(93.7%);心率变异性(HRV)降低的发生率高(90.7%);②心源性死亡与HRV中-重度降低密切相关(t=3.344,p<0.002),且后者与左室射血分数(LVEF)显著下降呈正相关(r=0.69,p<0.05),心源性死亡与室性心律失常程度(x2=0.0007,p>0.05)和房颤(x2=0.06,p>0.05)无关。结论 HRV中-重度降低结合LVEF显著下降可做为ICM患者心源性死亡的预警指标。
Objective To investigate the characteristics of dynamic electrocardiogram（DCG） and the risk factors of cardiac death in patients with ischemic cardiomyopathy（ICM）.Methods Review and analysis clinical and DCG data on 68 in-patients with ICM.Results ①It was showed by DCG that all kinds of arrhythmia were observed and ventricular arrhythmia was the most common（94.1%） one;the changes of ST-T were extensive and continuous;the incidence of heart rate variability（HRV） decline was high（90.7%）;②The cardiac death was closely correlated to moderate-severe decline of HRV（t=3.344,p0.002）,the latter was positive correlation to the significant decrease of LVEF（r=0.69,p〈0.05）;the cardiac death was nothing to do with ventricular arrhythmia（x2=0.0007,p〈0.05） and atrial fibrillation（x2=0.06,p〈0.05）.Conclusion Combining moderate-severe lowing of HRV with significant lowing of LVEF can be a pre-warning index of cardiac death in patients with ICM.
出处
《临床心电学杂志》
2011年第6期425-427,共3页
Journal of Clinical Electrocardiology
关键词
缺血性心肌病
动态心电图
心率变异性
ischemic cardiomyopathy
dynamic electrocardiogram
heart rate variability
