ABSTRACT
Objective: To determine the diagnostic accuracy of echocardiography in left anterior descending artery occlusion proximal to first diagonal [Dl] branch in acute anterior wall myocardial infarction [AWMI] by comparing it with angiography
Study Design: Cross sectional validation study
Place and Duration of Study: Department of cardiology, Pakistan Institutes of Medical Sciences [PIMS], Islamabad from May 2011 to Nov 2011
Material and Methods: This was a cross sectional study which included 200 patients with left anterior descending myocardial infarction [LADMI]. All the patients had 12-lead ECG followed by coronary angiography [gold standard] for the detection of LAD occlusion proximal to Dl. Diagnostic accuracy of 12-lead ECG was detected by determining sensitivity, specificity and accuracy
Results: The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of 12-lead ECG for diagnosis of LAD occlusion proximal to Dl was 91%, 70.45%, 91.61%, 68.88% and 86.50%, respectively
Conclusion: Twelve-lead ECG is a reliable test for detection of LAD occlusion proximal to Dl and should be done in every patient with AWMI