动态心电图、高频心电图和运动试验诊断冠心病价值的比较

目的　比较动态心电图、高频心电图和运动试验在冠心病诊断中的意义。方法　对冠心病组(81例 )及对照组 (6 7例 )分别进行动态心电图、高频心电图、运动试验以及选择性冠状动脉造影检查 (2次检查间隔在 2周内 ) ,以至少一支冠脉直径狭窄≥ 5 0 %作为诊断冠心病的标准。结果　高频心电图诊断冠心病的敏感性高于动态心电图及运动试验 ,但特异性较这两种方法明显偏低 (P <0 .0 0 5 )。运动试验与动态心电图的敏感性无明显差异 (P >0 .0 5 ) ,但运动试验的特异性高于动态心电图 (P <0 .0 5 )。结论　动态心电图与运动试验是两种价值较高的冠心病诊断方法

Comparative Research on the Diagnosis Value among Holter Monitoring Electrocardiogram,High Frequency Electrocardiograph and Exercise Test for Coronary Artery Disease

Objective:To compare the diagnosis value among Holter monitoring electrocardiogram(Holter),high frequency electrocardiograph(HFECG) and exercise test for coronary artery disease(CAD).Methods:Each of CAD group(81 cases) and contrast group(67cases) underwent Holter,HFECG,exercise test and selected coronary angiography(the average interval was less than 2 weeks between two examinations),CAD was defined as the presence of one or more vessels with 50% luminal diameter narrow.Results:The sensitivity of HFECG was prior to that of Holter or exercise test,but its specificity was very inferior to Holter or exercise test(P<0.005). There was no significant difference between exercise test and Holter(P>0.05) but exercise test's specificity was prior to Holter's(P<0.05).Conclusion:Both Holter and exercise test are the highly valuable diagnosis mothods for CAD.