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目的评估动态心电图诊断冠心病心肌缺血的价值。方法 98例冠心病心肌缺血患者,随机分为观察组和对照组,每组49例。观察组采用动态心电图检查,对照组采用心电图平板运动试验。比较诊断符合率,敏感度和特异度。结果观察组诊断符合率为77.6%,高于对照组的55.1%,差异有统计学意义(P<0.05)。观察组诊断敏感度为85.7%,特异度为57.1%;对照组诊断敏感度为61.5%,特异度为47.8%;观察组诊断敏感度高于对照组(P<0.05);观察组诊断特异度低于对照组,但差异无统计学意义(P>0.05)。结论动态心电图不但对冠心病心肌缺血的诊断准确性较高,而且具有较高的特异性和敏感性,值得临床应用推广。
Objective To evaluate the value of dynamic electrocardiogram in diagnosis of myocardial ischemia in patients with coronary heart disease. Methods 98 cases of coronary heart disease patients with myocardial ischemia were randomly divided into observation group and control group, 49 cases in each group. The observation group used dynamic electrocardiogram examination, the control group with electrocardiogram treadmill exercise test. Comparison of diagnostic coincidence rate, sensitivity and specificity. Results The coincidence rate of the observation group was 77.6%, which was higher than that of the control group (55.1%), the difference was statistically significant (P <0.05). The sensitivity of the observation group was 85.7% and the specificity was 57.1%. The sensitivity and specificity of the control group were 61.5% and 47.8% respectively. The sensitivity of the observation group was higher than that of the control group (P <0.05) Lower than the control group, but the difference was not statistically significant (P> 0.05). Conclusion The dynamic electrocardiogram not only has high diagnostic accuracy for myocardial ischemia of coronary heart disease, but also has high specificity and sensitivity and is worthy of clinical application.