[Role of surgery in the treatment of acute ischemic syndromes].

The acute coronary syndromes, like unstable angina and acute myocardial infarction without S-T segment elevation, still common manifestation in coronary disease. The difference between these two entities is the symptoms severity, mainly expressed by Troponins elevation as a biochemical marker of myocardial necrosis. These acute coronary syndromes required, first of all, an aggressive medical treatment in order to stabilise a control the symptoms. Coronary artery bypass surgery has, so far, a similar indication based on the obstructive coronary artery lesion; all of them considered of high risk.