摘要
目的探讨心电图在急性下壁心肌梗死(Acute inferior myocardial infarction,AIMI)患者右冠状动脉闭塞(Right coronaryartery,RCA)、左回旋支闭塞(Left circumflex artery,LCX)判断中的应用价值。方法 100例AIMI患者均于发病后6 h内做18导联心电图,并于2周内做冠状动脉造影检查,将心电图ST段变化情况与冠状动脉造影结果作比较。结果冠脉造影判定RCA82例,LCX18例。STⅢ↑/STⅡ↑>1.0,STaVL↓/STⅠ↓>1.0,STV3↓/STⅢ↑≤1.2提示为RCA的敏感性、特异性高于LCX;STⅢ↑/STⅡ↑≤1.0,STaVL↓/STⅠ↓≤1.0,STV3↓/STⅢ↑>1.2提示LCX的敏感性、特异性高于RCA,差异比较均具有统计学意义(P<0.01)。结论心电图判断AIMI相关动脉的准确性高,心电图ST段改变可作为AIMI相关动脉预测的可靠指标。
Objective To understand the clinical role of electrocardiogram in determining RCA or LCX resulting in acute inferior myocardial infarction（AIMI）. Method 100 patients with AIMI underwent 18-lead ECG 6hrs after onset and coronary angiography was conducted two weeks after onset. The ST-segment changes were compared with the results of coronary angiography. Findings Coronary angiography determined RCA 82 cases and LCX 18 cases. STⅢ↑/STⅡ↑1.0,STaVL↓/STⅠ↓ 1. 0,STV3↓/ STⅢ↑≤1.2 indicated that RCA＇s sensitivity and specificity were higher than those of LCX; STⅢ↑/STⅡ↑≤1.0,STaVL↓/STⅠ↓≤1.0,STV3↓/ STⅢ↑1.2 indicated that LCX＇s sensitivity and specificity was higher than that of RCA. The differences were statistically significant（P〈 0. 01）. Conclusion ECG has high accuracy in determining AIMI related artery.ECG ST-segment changes can serve as a reliable precursor of related artery of AIMI.
出处
《健康研究》
CAS
2014年第5期522-524,共3页
Health Research
关键词
急性下壁心肌梗死
心电图
右冠状动脉闭塞
左回旋支闭塞
acute inferior myocardial infarction
electrocardiogram
right coronary artery occlusion
left circumflex artery occlusion
