4 documents found, page 1 of 1
Changes in Surgical Revascularization Strategy After Fractional Flow Reserve
Fournier, S; Toth, G; De Bruyne, B; Kala, P; Ribichini, F; Casselman, F; Ramos, R; Piroth, Z; Piccoli, A; Penicka, M; Mates, M; Nemec, P; Van Praet, FAims: In the randomized GRAFFITI trial, surgeons drew their strategy based on coronary angiography. When patients were randomized to fractional flow reserve (FFR)-guidance, surgeons were informed of the FFR values and asked to redraw their strategy. The aim of this study was to investigate the changes induced by FFR knowledge. Methods and results: The intended and performed strategy (before and after FFR) were ...
Predictive factors of discordance between the instantaneous wave-free ratio and...
Dérimay, F; Johnson, N; Zimmermann, F; Adjedj, J; Witt, N; Hennigan, B; Koo, B; Barbato, E; Esposito, G; Trimarco, B; Rioufol, G; Baptista, SBOBJECTIVES: To identify clinical, angiographic and hemodynamic predictors of discordance between instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR). BACKGROUND: The iFR was found to be non-inferior to the gold-standard FFR for guiding coronary revascularization, although it is discordant with FFR in 20% of cases. A better understanding of the causes of discordance may enhance application of t...
Study Design of the Graft Patency After FFR-Guided Versus Angiography-Guided CA...
Toth, GG; De Bruyne, B; Kala, P; Ribichini, FL; Casselman, F; Ramos, R; Piroth, Z; Fournier, S; Van Mieghem, C; Penicka, M; Mates, M; Van Praet, FClinical benefit of invasive functionally guided revascularization has been mostly investigated and proven for percutaneous coronary intervention. It has never been prospectively evaluated whether a systematic fractional flow reserve (FFR) assessment is also beneficial in guiding coronary artery bypass graft surgery (CABG). The objective of the GRAft patency after FFR-guided versus angiography-guIded CABG (GRAF...
Continuum of Vasodilator Stress From Rest to Contrast Medium to Adenosine Hyper...
Johnson, N; Jeremias, A; Zimmermann, F; Adjedj, J; Witt, N; Hennigan, B; Koo, B; Maehara, A; Matsumura, M; Barbato, E; Esposito, G; Trimarco, BOBJECTIVES: This study compared the diagnostic performance with adenosine-derived fractional flow reserve (FFR) ≤0.8 of contrast-based FFR (cFFR), resting distal pressure (Pd)/aortic pressure (Pa), and the instantaneous wave-free ratio (iFR). BACKGROUND: FFR objectively identifies lesions that benefit from medical therapy versus revascularization. However, FFR requires maximal vasodilation, usually achieved wit...