Outcomes of primary percutaneous intervention of the unprotected left main coronary artery stenosis in myocardial infarction.

Objective: The aim of our study was to examine the 30-day and 1-year survival rate for patients undergoing percutaneous coronary artery intervention (PCI) of unprotected left main (ULM) stenosis by the presence (acute myocardial infarction [AMI] group) or absence (non-AMI group) of AMI at the time of hospital admission.

Methods: We retrospectively reviewed 64 patients undergoing PCI of ULM stenosis at our regional heart institute between 2000 and 2008. Patients had no history of coronary artery bypass grafting.