动态心电图在冠心病临床诊断中的应用观察

目的研究动态心电图在冠心病临床诊断中的应用价值。方法 82例拟诊冠心病患者随机均分成两组,观察组进行动态心电图诊断,对照组则进行常规心电图诊断。对比两组症状检出率以及ST段下移持续时间。结果观察组发现心肌缺血性ST段下移464次,其中SMI发作392次,有症状缺血发作72次,均显著高于对照组(P<0.05)。观察组SMI持续时间(14.6±3.5)min/次,有症状性心肌缺血持续时间(31.2±9.8)min/次,均显著高于对照组(P<0.05)。观察组ST段下移发作高峰时间6～12时为198阵次,12～18共84阵次,18～24时共57阵次,0～6时共47阵次,均显著高于对照组(P<0.05)。结论临床中对于冠心病患者采取动态心电图的诊断,提高了对冠心病临床诊断的检出率,安全性较高,值得临床推荐应用。

Observation on Dynamic Electrocardiogram in the Clinical Diagnosis of Coronary Artery Disease

Objective To study the application of dynamic electrocardiogram （ECG） in the clinical diagnosis of coronary artery disease. Methods 82 patients with suspected coronary heart disease were randomly divided into two groups. 41 cases of the observation group received dynamic ECG diagnosis, while 41 cases of the control group received routine ECG. The detection rates and ST segment depression duration were compared between two groups. Results 464 times of ST segment depression duration were found in the observation group, including 392 times of SMI attack, and 72 times of symptomatic ischemic attack, all of the above were significantly higher than those of the control group （P〈0.05）. The SMI duration and symptomatic myocardial ischemia duration of the observation group were （14.6±3.5） min/time and （31.2±9.8） min/time respectively, significantly higher than those of the control group （P〈0.05）. According to ST segment depression measured by the number of SMI, the observation group had 198 times from 6：00 to 12：00, 84 times from 12：00 to 18：00, 57 times from 18：00 to 24：00, and 47 times from 0：00 to 6：00, all were significantly higher than those of the control group （P〈0.05）. Conclusions In the clinical diagnosis of coronary artery disease, dynamic ECG can improve the detection rate with high safety, which is worthy of clinical application.