October 2009, Volume 39 Number 10 , p 63 - 63
WHEN A PATIENT has chest discomfort suggestive of myocardial ischemia or anginal equivalent symptoms, such as dyspnea, the 12-lead ECG and serum cardiac biomarkers are used, in conjunction with patient history, to help identify or rule out acute coronary syndromes (ACS). ACS is a spectrum of clinical syndromes that include unstable angina, non-ST-segment elevation myocardial infarction (NSTEMI), and ST-segment-elevation myocardial infarction (STEMI). 1 In this article, I'll explain the critical role of serum cardiac biomarkers in identifying acute myocardial infarction (AMI).
In AMI, damaged myocytes release enzymes and proteins normally ...