Tseng Y Z, Tseng C D, Lo H M, Hsu K L, Chiang F T, Lin F Y, Wu T L
Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, R.O.C.
J Formos Med Assoc. 1990 Jun;89(6):427-31.
Body surface potential maps (BSPMs) and the pathology of 32 dogs with coronary artery ligations were analyzed to research the application of BSPMs to acute myocardial infarction (AMI). The group consisted of 18 dogs with left anterior descending coronary artery (LAD) ligations, 8 with right coronary artery (RCA) ligations and 6 with left circumflex coronary artery (LCX) ligations. The abnormal distribution of negative potential and minimal potential were observed in all of the dogs. In dogs with RCA ligations, the abnormal negative potential displayed on the right-superior, right-inferior or right portion of the anterior thorax. In those with LAD ligations, the abnormal potential appeared on the left-superior, left-inferior, middle-superior or middle portion of the anterior thorax. In those with LCX ligations, the abnormal potential showed on the left-superior or left-middle portion of the thorax. A good correlation was observed between the area of myocardial lesion and the extent of abnormal negative potential distribution (r = 0.82, p less than 0.001). A close correlation was also found between the area of myocardial lesion and the duration of abnormal negative potential (r = 0.61, p less than 0.05). This study suggests that BSPMs are useful in the assessment of AMI in terms of diagnosis, location and extent of myocardial infarct.
分析了32只冠状动脉结扎犬的体表电位图（BSPM）及其病理学，以研究BSPM在急性心肌梗死（AMI）中的应用。该组包括18只左前降支冠状动脉（LAD）结扎犬、8只右冠状动脉（RCA）结扎犬和6只左旋支冠状动脉（LCX）结扎犬。所有犬均观察到负电位和最小电位的异常分布。在RCA结扎犬中，异常负电位出现在前胸的右上、右下或右侧部分。在LAD结扎犬中，异常电位出现在前胸的左上、左下、中上或中部。在LCX结扎犬中，异常电位出现在胸部的左上或左中部。观察到心肌病变面积与异常负电位分布范围之间存在良好的相关性（r = 0.82，p < 0.001）。还发现心肌病变面积与异常负电位持续时间之间存在密切相关性（r = 0.61，p < 0.05）。本研究表明，BSPM在评估AMI的心肌梗死诊断、定位和范围方面是有用的。
