心电图对心肌梗塞的诊断,最有意义的是及时而精确地发现梗塞性Q波。 一、梗塞性Q波 早在1920年,Pardee就提出在标准心电图中如发现异常Q波可作为冠状动脉闭塞征象。1935年Wilson认为异常Q波是通过死亡心肌的“窗”,把左心室的负电势传出而产生。1971年Horan通过1184例尸检发现在416例心肌梗塞的病例中,253例有异常Q波,灵敏度为61％;768例无梗塞的病 ECG on the diagnosis of myocardial infarction, the most significant is the timely and accurate detection of infarction Q waves. First, the infarct Q wave As early as 1920, Pardee proposed in the standard ECG as found abnormal Q waves can be used as a sign of coronary artery occlusion. Wilson in 1935 that the abnormal Q wave is through the death of myocardial “window”, the negative potential of the left ventricular outcome. Horan in 1971 by 1184 autopsy found that in 416 cases of myocardial infarction, 253 patients had abnormal Q wave, the sensitivity was 61%; 768 cases of non-infarction disease