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Impact of Bifurcation Lesions on Outcomes After FFR-Guided PCI or CABG.
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Impact of Bifurcation Lesions on Outcomes After FFR-Guided PCI or CABG. Circulation. Cardiovascular interventions Dillen, D. M., Otsuki, H., Takahashi, K., Kobayashi, Y., Piroth, Z., Noiseux, N., Nakadi, B. E., Kalinauskas, G., Szekely, L., Davidavicius, G., Teeuwen, K., Tonino, P. A., Pijls, N. H., De Bruyne, B., Fearon, W. F., Zimmermann, F. M. 2024: e014610Abstract
In the era of first-generation drug-eluting stents and angiography-guided percutaneous coronary intervention (PCI), the presence of a bifurcation lesion was associated with adverse outcomes after PCI. In contrast, the presence of a bifurcation lesion had no impact on outcomes following coronary artery bypass grafting (CABG). Therefore, the presence of a coronary bifurcation lesion requires special attention when choosing between CABG and PCI. The aim of this study is to assess whether the presence of a bifurcation lesion still influences clinical outcomes after contemporary PCI using second-generation drug-eluting stent and fractional flow reserve (FFR) guidance versus CABG.The randomized FAME 3 trial (Fractional Flow Reserve Versus Angiography for Multivessel Evaluation) compared FFR-guided PCI using current drug-eluting stents with CABG in patients with 3-vessel coronary artery disease. The prespecified key end point at 3-year follow-up was the composite of death, myocardial infarction, or stroke. In this substudy, the impact of bifurcation lesions on outcomes after FFR-guided PCI and CABG was investigated.The FAME 3 trial enrolled 1500 patients and 653 (45.2%) patients had at least 1 true bifurcation lesion. There was no difference in the composite of death, myocardial infarction, or stroke at the 3-year follow-up between patients with or without at least 1 true bifurcation lesion (11.6% versus 10.0%; hazard ratio, 1.17 [95% CI, 0.86-1.61]; P=0.32), regardless of revascularization strategy. The composite end point was not statistically different between FFR-guided PCI and CABG in patients with at least 1 true bifurcation lesion (hazard ratio, 1.27 [95% CI, 0.80-2.00]) or without a true bifurcation lesion (hazard ratio, 1.36 [95% CI, 0.87-2.12]), with no significant interaction (Pinteraction=0.81).In patients with 3-vessel coronary artery disease, the presence of a true bifurcation lesion was not associated with a different treatment effect after FFR-guided PCI with contemporary drug-eluting stent versus CABG.
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