Clinical Implications of Fractional Flow Reserve Measured Immediately After Percutaneous Coronary Intervention.

Csanádi, Bettina; Ferenci, Tamás; Fülöp, Gábor; Piróth, Zsolt

Purpose: The purpose of the present study was to find the independent predictors of Fractional Flow Reserve (FFR) measured immediately after percutaneous coronary intervention with drug-eluting stent implantation (post-PCI FFR) and investigate if applying vessel-specific post-PCI FFR cut-off values to predict target vessel failure (TVF), a composite of cardiac death (CD), non-fatal myocardial infarction (MI) and target vessel revascularization (TVR), or a composite of CD and MI ameliorated its predictive power. Methods: Consecutive patients with post-PCI FFR measurement at our center between 2009 and 2021 were included in this analysis. Results: A total of 434 patients with 500 vessels were included. Median pre-PCI FFR was 0.72 with no difference between LAD and non-LAD vessels. Median post-PCI FFR was 0.87. LAD location, male gender, smaller stent diameter, and lower pre-PCI FFR proved to be significant predictors of a lower post-PCI FFR. On a vessel-level, post-PCI FFR, stent length, and diabetes mellitus proved to be significant predictors of TVF and the composite of CD and MI. The best post-PCI FFR cut-off to predict TVF or a composite of CD and MI was 0.83 in the LAD and 0.91 in non-LAD vessels. Conclusion: LAD location is a predictor of a lower post-PCI FFR. Post-PCI FFR is an independent predictor of TVF as well as of the composite of CD and MI. No uniform target post-PCI FFR value exists; different cut-off values may have to be applied in LAD as opposed to non-LAD vessels.

PERCUTANEOUS coronary intervention; MYOCARDIAL infarction; DIABETES; GENDER

Cardiovascular Drugs & Therapy, 2024, Vol 38, Issue 5, p917

0920-3206

Academic Journal

10.1007/s10557-023-07437-0