Meta-Analysis Comparing Fractional Flow Reserve and Angiography-Guided Complete Revascularization of Nonculprit Artery for ST-Elevation Myocardial Infarction.

This study aimed to compare complete revascularization (CR) guided by angiography with a fractional flow reserve (FFR)-guided strategy in patients presenting with ST-segment elevation myocardial infarction (STEMI) and multivessel disease (MVD). CR is preferred to culprit-only revascularization for patients with STEMI and MVD. However, whether FFR-guided CR is superior to angiography-guided CR is unclear in patients presenting with STEMI who have MVD. Randomized controlled trials comparing CR with an FFR- or angiography-guided strategy to culprit-only revascularization in patients with STEMI and MVD were systematically identified. A random-effects network meta-analysis was performed comparing clinical outcomes in the 3 arms. A total of 13 studies with a total of 8,927 patients were included in our analysis. Compared with culprit-only revascularization, angiography-guided CR was associated with a significantly decreased risk of myocardial infarction (MI) (hazard ratio [HR] 0.55, 95% confidence interval [CI] 0.37 to 0.82), all-cause death (HR 0.69, 95% CI 0.49 to 0.97), and cardiovascular death (HR 0.54, 95% CI 0.34 to 0.85) but FFR-guided CR was not (MI: HR 0.77, 95% CI 0.53 to 1.12; cardiovascular death: HR 0.89, 95% CI 0.64 to 1.24; all-cause death: HR 0.93, 95% CI 0.72 to 1.18). The network meta-analysis comparison of angiography- versus FFR-guided CR showed an HR of 0.75 (95% CI 0.50 to 1.11) for all-cause death and an HR of 0.71 (95% CI 0.54 to 1.17) for MI. In conclusion, for patients with MVD presenting with STEMI, angiography-guided CR may provide additional benefits compared with FFR-guided CR.

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