ABSTRACT
The simultaneous presentation of acute myocardial infarction (AMI) in the right and left coronary arteriesis rare. Diabetes mellitus (DM), thrombus due to multivessel spasm, AMI with hypercoagulation,and hypoperfusion of other coronary arteries after an AMI may cause the simultaneous occurrence of right and left coronary artery infarctions. If emergency coronary revascularization (percutaneous coronary intervention, thrombolysis, and coronary artery bypass surgery) is not performed immediately, the mortality rate is very high due to the development of cardiogenic shock and ventricular arrhythmia. Here, we report a number of cases involving the simultaneous development of AMIin two coronary arteries and discuss the importance of rapid revascularization.