The preliminary prediction of the occlusion site of left anterior descending branch through electrocardiogram in anterior acute myocardial infarction / 重庆医学

ABSTRACT

Objective To investigate the orientation relationship between the infarct related artery (IRA)and the change of the electrocardiogram (ECG)of the patients with anterior wall and extensive anterior wall acute myocardial infarction (AMI) .Methods ECG and coronary artery angiography (CAG)were compared and analyzed retrospectively through 171 patients(selected from January 1 ,2008 to March 31 ,2013)who were divided into anterior wall of LAD group and extensive anterior wall of LAD group .Re‐sults It was prompted that the IRA of the extensive anterior was the proximal occlusion of the left anterior descending (LAD) rather than distal occlusion (P<0 .05)if ST‐segment elevated in lead I ,aVL and aVR or ST‐segment depressed in lead Ⅱ ,Ⅲ and aVF in case of anterior wall and extensive anterior wall AMI .Conclusion Analyzing valuable ECG index could help us to prelimina‐rily infer IRA and the occlusion site in anterior wall and extensive anterior wall AMI .