Optimal Revascularization Threshold of Fractional Flow Reserve and its Effect on Outcomes: Perspectives From a High-Volume Center in China

摘要

This study aimed to investigate the favorable revascularization threshold for fractional flow reserve (FFR) in daily practice. Between March 2013 and March 2017 in a high-volume center in China, 903 patients with 1210 lesions underwent coronary intervention with adjunctive FFR and were consecutively enrolled. The mean FFR was 0.80 +/- 0.11, revascularization was deferred for 68% of lesions, and the median follow-up period was 21 months. For lesions with an FFR > 0.80, deferral of revascularization appeared safe. In contrast, for lesions with an FFR = 0.86] 3.35, 95% CI 1.13-9.97, P = .030; HR [FFR 0.76-0.80 vs FFR >= 0.86] 4.01, 95% CI 1.73-9.31, P = .001) or continuous (HR 0.004, 95% CI 0.00-0.13, P = .002). Thus, an FFR value of 0.80 appears to be the optimal threshold for decision-making regarding revascularization and risk stratification.