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为了正确评价高频心电图对冠心病早期诊断的价值,我们对31名正常人和33名经冠状动脉造影证实的冠心病患者的结果作了分析比较。六导法以切迹>3为阳性,九导法以切迹>6为阳性,十二导法以切迹>8为阳性。结果表明:高频心电图检查中度以上冠脉狭窄的灵敏度均在90％以上,特异度为70～80％,总符合率为85～91％;4例PTCA前后高频切迹数相比,术后明显减少,以T_6为例,从4、4、3、12减为1、0、0、8个切迹。可见高频心电图在诊断中度以上冠状动脉狭窄比常规心电图要灵敏的多。
In order to correctly evaluate the value of high-frequency electrocardiogram in the early diagnosis of coronary heart disease, we compared the results of 31 normal subjects and 33 coronary artery disease patients confirmed by coronary angiography. Six guide method to notch> 3 is positive, nine guide method to notch> 6 is positive, twelve guide method to notch> 8 is positive. The results showed that the sensitivity of high-frequency electrocardiogram in more than moderate coronary artery stenosis were above 90%, the specificity was 70-80%, the total coincidence rate was 85-91% Significantly reduced after surgery to T_6, for example, from 4,4,3,12 reduced to 1,0,0,8 notch. Visible high-frequency electrocardiogram in the diagnosis of moderate coronary artery stenosis than conventional ECG to be more sensitive.