STEMI means ST segment elevation to diagnose myocardial infarction. Myocardial infarction is the most important disease for an anesthesiologist to diagnose intraoperatively so that quick diagnosis and treatment can be given and the patient can be survived. What are the diagnostic criteria for ST segment elevation?

Whether elevation of the st segment is different in different leads? How much elevation in which leads is the diagnostic of myocardial infarction?