FFR-guided Complete versus Culprit-Only Revascularization in Patients with Myocardial Infarction: A Systematic Review...

In patients with myocardial infarctions (MI) and multivessel coronary artery disease (CAD), the effect of fractional flow-reserve (FFR)-guided complete revascularization during index hospitalization versus culprit-only revascularization remains unclear. Our objective is to determine whether FFR-guided complete revascularization during index hospitalization reduces major adverse cardiac events (MACE) among patients with MI and multivessel CAD. We systematically searched MEDLINE, EMBASE, and the Cochrane Library for randomized controlled trials (RCTs) comparing FFR-guided complete versus culprit-only revascularization in patients with MI and multivessel CAD. The primary outcome was MACE, as defined by a composite endpoint of all-cause death, MI or unplanned revascularization, at a minimum one-year follow-up. Count data were pooled across trials using random-effects models to estimate risk ratios (RRs) and 95% confidence intervals (CIs). A total of 3 RCTs (n=3,054) were included. The majority (77.5%) of participants were male. The pooled RR of MACE for FFR-guide complete versus culprit-only revascularization was 0.63 (95% CI: 0.37-1.05; I² = 90%). FFR-guided complete revascularization was associated with reduced unplanned revascularization events, with a pooled RR 0.43 (95% CI: 0.21-0.87; I² = 88%). There was no significant difference in the risk of recurrent MI (RR: 0.9; 95% CI: 0.61-1.33; I² =30%). The risk of major bleeding was low in both FFR-guided complete (23/1373) and culprit-only (29/1681) revascularization groups across the 3 trials. In conclusion, in patients with MI and multivessel CAD, FFR-guided complete revascularization during the index hospitalization reduces the risk of unplanned revascularizations and may reduce the risk of MACE compared to culprit-only revascularization.