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Hill等曾提出,诊断下壁心肌梗塞最有意义的心电图标准是:在aVF导联Q波时间>30毫秒(QaVF>30毫秒)作者近年来查阅了大量下壁心肌梗塞的心电图表现及临床资料,发现诊断下壁心肌梗塞QaVF>20毫秒即有较高的敏感性(92%),且特异性与QaVF>30毫秒接近。同时还根据Ⅲ、aVF导联上Q波与R波振幅的比例,推荐Ⅲ导联
Hill et al. Have suggested that the most useful ECG criteria for the diagnosis of inferior myocardial infarction are:> 30 milliseconds (QaVF> 30 milliseconds) in aVF leads Q-wave in recent years The authors reviewed a large number of ECG findings and clinical data of inferior myocardial infarction Found to have a higher sensitivity (92%) in diagnosing inferior wall myocardial infarction QaVF> 20 milliseconds and a specificity close to QaVF> 30 milliseconds. At the same time also based on Ⅲ, aVF lead Q wave and R wave amplitude ratio, the recommended lead III