Participants
side branch, stenosis
STENOSIS, COMPLICATIONS
Patients over the age of 18, presenting with a first STEMI, had a successful primary PCI, and had a significant stenosis (≥ 70% diameter stenosis) in at least one non-infarct-related coronary artery, or major side branch (≥ 2.5 mm diameter), were eligible to participate. We excluded patients with ≥ 50% stenosis of the left main coronary artery, or had TIMI flow < 3 in a stenosed non-culprit vessel, or had complex lesion anatomy (as judged by the treating interventionist) that would preclude complete revascularisation. We also excluded patients who were hemodynamically unstable, had mechanical complications, or had prior revascularisation with PCI or CABG.