Objective To explore the correlation difference between dynamic and routine electrocardiogram when used to diagnose asymptomatic myocardial ischemia.Methods Totally 92 coronary disease patients confirmed clinically from April 2014 to May 2016 were divided equally and randomly into an observation group and a control group.The patients in the control group underwent conventional ECG examination,and the ones in the observation group went through 24 h 12-lead dynamic ECG examination.The positive rates of asymptomatic myocardial ischemia were compared in the two groups,and the onset time and the patient state at that moment were analyzed in the observation group,Results The positive rates in the control group and observation group were 47.83％ and 84.78％ respectively,and there was significant difference between them (P＜0.05).The onset time was restrained within 6:00 and 12:00,when the patient was in the state of manual labor,brain work or excitement.Conclusion 24 h 12-lead dynamic ECG gains advantages in early and timely diagnosis of asymptomatic myocardial ischemia,and thus is worthy promoting clinically.%目的:探究动态心电图与常规心电图诊断无症状心肌缺血的相关差异性,以选择最适合临床上对无症状心肌缺血的检测方法.方法:选取2014年4月至2016年5月经临床明确诊断为冠心病的患者92例,随机分为观察组和对照组(每组46例),对照组患者给予常规心电图检查,观察组给予24 h十二导联动态心电图检查.比较2组患者的无症状心肌缺血阳性率,并对观察组心肌缺血患者的病情发作时间及患者发作时所处的情况进行比较分析.结果:在患者的无症状心肌缺血阳性率方面,对照组的阳性检出率为47.83％,观察组的阳性检出率为84.78％,2组数据之间的差异具有统计学意义(P＜0.05);且研究发现心肌缺血的发作时间段主要集中在6:00-12:00,具有显著的规律性,所处的状态主要为体力或脑力劳动及激动.结论:对无症状心肌缺血患者采取24 h十二导联动态心电图检查诊断率高,优势明显,能够对患者的病情进行早期、及时的有效诊断,为医护工作者开展临床工作提供有力的科学依据,适合临床推广.
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