动态心电图与常规心电图诊断无症状心肌缺血的相关分析

Comparative analysis of DCG and ECG in the diagnosis of silent myocardial ischemia

目的:探讨动态心电图与常规心电图对无症状心肌缺血的诊断价值。方法:经冠状动脉造影确诊冠心病患者156例行12导联动态心电图和常规心电图检查,比较2种方法无症状心肌缺血的检出率。结果:符合动态心电图24h心肌缺血发作要求者156例,其中有症状心肌缺血45例,占28.85%(45/156),无症状心肌缺血111例,占71.15%(111/156)。符合常规心电图心肌缺血发作要求者76例,占48.72%(76/156),其中有症状心肌缺血42例,占26.92%(42/156),无症状心肌缺血34例,占21.80%(34/156)。2种检查方法无症状心肌缺血的检出率比较差异有统计学意义(P<0.05)。结论:无症状心肌缺血冠心病患者常见,动态心电图可提高心肌缺血,尤其是无症状心肌缺血检出率。

Objective To investigate DCG and ECG in the diagnosis of silent myocardial ischemia. Methods One hundred and fifty-six cases of coronary heart disease diagnosed with coronary angiography were performed 12-lead DCG monitoring and normal ECG to compare the detective rates for the silent myocardial ischemia. Results All 156 cases were in accordance with myocardial ischemic attack by DCG, in which 45 cases（28. 85%） had symptoms of myocardial ischemia and 111 cases （71.15%） were silent myocardial ischemia. And 76 cases （48. 72%） were accordance with the myocardial ischemic attack by ECG myocardial ischemic attack, 76 cases accounting for 48. 720% of the total cases were suitable, in which 42 cases（26.92%） had symptoms of myocardial ischemia and 34 cases（21.80%） were silent myocardial ischemia. There was a statistic difference between DCG and ECG for the diagnosis of silent myocardial ischemia （P〈0.05）. Conclusion Silent myocardial ischemia is very common in patients with coronary heart disease. Application of dynamic electrocardiogram can improve detective rate for myocardial ischemia, especially for silent myocardial ischemia.