动态心电图检测对冠状动脉供血不足患者的临床诊断价值

Clinical diagnostic value of dynamic ECG to patients with coronary insufficiency

目的探讨24h动态心电图检测对冠状动脉供血不足患者的临床诊断价值。方法刈84例冠心病患者进行24h动态心电图检测分析。结果本组患者共出现心肌缺血表现945阵次，发作持续时间2min-40min，发作时心率（81147）次·min，发作时间主要位于6：0012：00时间段，占56．51％，其中ST段改变以6：0020：00为界限，昼夜心率、起搏心电剧、低频与高频功率的比值、ST段变化差异有极显著性（P〈0.01）。结论24h动态心电图检测能明确诊断冠状动脉供血不足患者的心肌缺血状况，能为冠心病患者的心肌缺血诊断和治疗提供客观依据。

Objective To explore the clinical diagnostic value of 24h dynamic ECG to patients with coro nary insufficiency. Methods 24h dynamic ECG monitoring and analyses were performed in 84 patients with coronary heart disease （CHD）. Results The patients developed 945 paroxysms times of myocardial ischemia, paroxysm durations were 2-40 minutes, heart rates （HR） 81-147 times/minute when parox. ysm, paroxysms emerged in 6：00-12：00 mainly, which made up 56.51%, ST changes emerged in 6：00- 20：00, and there were very significant differences in circadian HR, pacemaker ECG, the ratio of low and high frequency power and ST changes （P〈0.01）. Conclusion 24h dynamic ECG monitoring could finally diagnose myocardial ischemia of patients with coronary insufficiency and provide objective basis for diagno sis and treatment of myocardial ischemia.