Indications for coronary angioplasty in acute myocardial ischemic syndromes.

The role of coronary angioplasty for the treatment of patients with evolving myocardial infarction, unstable angina, and early postinfarction unstable angina is discussed. It has been shown that coronary angioplasty in patients with an evolving myocardial infarction is feasible and can be performed with a high initial success rate. The most beneficial timing of dilatation is still unclear, and acute reocclusion following coronary angioplasty remains a problem. Current data suggest that the left ventricular function is greater improved and peri-infarction ischemia is less with angioplasty when compared with sole thrombolytic treatment. Coronary angioplasty for unstable angina and early post-infarction unstable angina can be performed with a high initial success rate, but at an increased risk of major complications. Thus, coronary angioplasty has nowadays obtained a definitive place in the treatment of acute myocardial ischemic syndromes. Further research is needed to improve the initial and late results of coronary angioplasty, and additional randomized clinical studies are necessary to more accurately define the indications and timing of dilatation in these acutely ill patients.