Predictive value of pathologic Q waves in leads Ⅱ,Ⅲ and a VF for multivessel coronary artery disease

AIM: To evaluate the clinical value of pathologic Q waves in leads II,III and a VF of ECG for predicting multivessel coronary artery disease( CAD). METHODS: Included in the study were 311 patients with myocardial infarction admitted to the Cardiology Department of our hospital from March 2006 to April 2014. According to electrocardiogram,patients were divided into two groups: 207 cases with anterior myocardial infarction and 104 cases with inferior wall myocardial infarction. Coronary angiography results of patients were analyzed. RESULTS: The rate of one-vessel CAD in anterior myocardial infarction patients was significantly higher than in patients with inferior wall myocardial infarction( 43 cases,21%vs. 6 cases,6%; P < 0. 05). The rate of two-vessel CAD in patients with anterior myocardial infarction was higher than in patients with inferior wall myocardial infarction( 67 cases,33% vs. 26 cases,26%)but without a statistically significant difference. The rate of three-vessel coronary artery disease in patients with anterior myocardial infarction was significantly lower than in patients with inferior wall myocardial infarction( 94 cases,46% vs. 69 cases,68%; P < 0. 05). CONCLUSION: Pathologic Q waves in leads II,III and a VF of ECG indicate multivessel CAD.