The electrocardiogram in unstable angina

Abstract

While Troponin determination will document loss of myocardial tissue in unstable angina the standard 12 lead ECG gives important information about the site and extent of ischemia. It is possible to identify high risk situations such as unstable angina due to a proximal LAD lesion or caused by either 3 vessel disease or left main stem stenosis. Recognizing these entities is important for decision making to restore adequate patency in the culprit vessel(s).