Clinical & Experimental Cardiology
Open Access
ISSN: 2155-9880
+44 1300 500008
ISSN: 2155-9880
+44 1300 500008
Pejman Mansouri, Hamid Sanei and Mohammad Hadi Mansouri
Tehran University of Medical Sciences, Iran
Isfahan University of Medical Sciences, Iran
Posters & Accepted Abstracts: J Clin Exp Cardiology
This hypothesis is still unknown that if upright T wave in lead V1 is a predictor for significant coronary artery disease (CAD) or not, in patients without ECG abnormality in rest condition. This study aimed to evaluate diagnostic value of positive T wave in lead V1 in diagnosis of significant CAD in patients undergoing coronary angiography. This study is a cross sectional study on patients who underwent angiography from 2015 to 2017. Patients�?? ECGs in their medical records were assessed by two different physicians who blinded for this study. Angiography records were assessed for presence of significant CAD defined as presence of �?�70% of internal diameter stenosis in at least one of major epicardial coronary artery or more than 50% stenosis in left main artery. Three hundred and eighty-four (384) patients participated in this study with mean age of 63.6±10.2 years (40-89 years). Chi-squared test showed that prevalence of significant CAD is more in those with positive T wave in lead V1 in comparison to those without this finding (OR:2.74, P-value <0.001). Mann-Whitney U test showed significant correlation between number of coronary arteries involved in CAD and presence of positive T wave in lead V1 (P-value <0.001). Most of the patients with significant CAD had remarkably higher T wave amplitude in lead V1 in comparison to lead V6 (OR: 6.22, P-value <0.001). In conclusion, positive T wave in TV1 and TV1>TV6 can be considered as a criteria for predisposing significant CAD in patients without other ECG findings.