Compared Outcomes of ST-Segment–Elevation Myocardial Infarction Patients With Multivessel Disease Treated With Primary Percutaneous Coronary Intervention and Preserved Fractional Flow Reserve of Nonculprit Lesions Treated Conservatively and of Those With Low Fractional Flow Reserve Managed Invasively: Insights From the FLOWER-MI Trial

In patients with ST-segment-elevation myocardial infarction and multivessel disease, percutaneous coronary intervention (PCI) for nonculprit lesions guided by fractional flow reserve (FFR) is superior to treatment of the culprit lesion alone. Whether deferring nonculprit PCI is safe in this specific context is questionable. We aimed to assess clinical outcomes at 1 year in ST-segment-elevation myocardial infarction patients with multivessel...