Yotsukura M, Toyofuku M, Tajino K, Yoshino H, Ishikawa K
Second Department of Internal Medicine, Kyorin University School of Medicine, Mitaka, Tokyo, Japan.
J Electrocardiol. 1999 Jan;32(1):15-20. doi: 10.1016/s0022-0736(99)90017-1.
We investigated the relationship between the disappearance of septal Q waves after myocardial infarction (MI) and the location of the culprit lesion. We studied 82 patients following their first anteroseptal MI who had an electrocardiogram performed before the MI. Septal Q waves were detectable before MI in 56 patients and disappeared after MI in 17 of those patients. The culprit lesion was located proximal to the origin of the first septal branch (S1) in 13 patients (76%). Disappearance of septal Q waves following MI predicted that the culprit lesion was proximal to the origin of S1 (sensitivity, 42%; specificity, 84%; predictive value, 76%; and accuracy, 61%). If septal Q waves that were detected before MI disappeared after MI, the culprit lesion was located proximal to the origin of S1 in 76% of the patients. This finding may be clinically useful in caring for patients following MI.
我们研究了心肌梗死（MI）后间隔Q波消失与罪犯病变位置之间的关系。我们对82例首次发生前间隔心肌梗死且在心肌梗死前进行过心电图检查的患者进行了研究。56例患者在心肌梗死前可检测到间隔Q波，其中17例在心肌梗死后间隔Q波消失。13例患者（76%）的罪犯病变位于第一间隔支（S1）起始部近端。心肌梗死后间隔Q波消失提示罪犯病变位于S1起始部近端（敏感性42%；特异性84%；预测值76%；准确性61%）。如果心肌梗死前检测到的间隔Q波在心肌梗死后消失，76%的患者罪犯病变位于S1起始部近端。这一发现可能对心肌梗死后患者的护理具有临床实用价值。
