心电图预测急性下壁心肌梗死相关血管的应用价值  

Role of electrocardiogram in predicting the infarct-related artery in acute inferior wall myocardial infarction

作　　者：陈晓敏[1] 任国庆[2] 

机构地区：[1]江苏大学附属医院心电图室,212001 [2]江苏大学附属医院急诊科,212001

出　　处：《江苏医药》2012年第18期2167-2169,共3页Jiangsu Medical Journal

摘　　要：目的探讨普通心电图(ECG)判断急性下壁心肌梗死(AIMI)相关血管的价值。方法根据冠状动脉造影(CAG)结果,将118例首发AIMI患者分为右冠状动脉(RCA)闭塞组(A组,83例)和左回旋支(LCX)闭塞组(B组,35例)。回顾性分析患者就诊2h内记录的18导联ECG。结果 A组:V4R导联ST段抬高的敏感度和特异度分别为7.23%和100.00%;Ⅰ导联ST段压低的敏感度和特异度分别为81.93%和85.71%;aVL导联ST段压低>Ⅰ导联的敏感度和特异度分别为73.49%和71.43%;Ⅱ导联ST段抬高<Ⅲ导联的敏感度和特异度分别为85.54%和80.00%。B组:Ⅰ导联ST段抬高的敏感度和特异度分别为20.00%和98.80%;Ⅱ导联ST段抬高≥Ⅲ导联的敏感度和特异度分别为80.00%和85.54%。结论普通ECG对预测AIMI相关血管有很高的临床应用价值。Objective To investigate the diagnostic value of electrocardiogram（ECG） in predicting the infarct-related artery in acute inferior wall myocardial infarction （AIMI）. Methods According to coronary artery angiography （CAG）, 118 patients with first AIMI were divided into two groups of A （83 cases,related to right coronary artery） and B （35 cases, related to left circumflex artery）. A retrospective analysis of 18-lead ECG recorded within 2 hours of coming to hospital was made. Results In group A, the sensitivity and specificity were 7.23% and 10G 00% with V4R ST-segment elevation, 81.93% and 85.71% with lead Ⅰ ST-segment depression, 73.49% and 71.43% with ST-segment depression when lead aVL was greater than lead Ⅰ ,85.54% and 80. 00% with ST-segment elevation when lead Ⅱ was lower than leadⅢ. In group B, the sensitivity and specificity were 20.00% and 98.80% with ST-segment elevation in lead Ⅰ , 80.00%and 85.54% with ST-segment elevation when lead Ⅱ was greater than or equal to lead Ⅲ. Conclusion Ordinary ECG has a high clinical value in predicting the infarct-related artery in the patients with AIMI.

关 键 词：心电图 急性下壁心肌梗死 冠状动脉造影 

分 类 号：R540[医药卫生—心血管疾病]