Fractional Flow Reserve-Guided PCI as Compared with Coronary Bypass Surgery

William F Fearon, Frederik M Zimmermann, Bernard De Bruyne, Zsolt Piroth, Albert H M van Straten, Laszlo Szekely, Giedrius Davidavičius, Gintaras Kalinauskas, Samer Mansour, Rajesh Kharbanda, Nikolaos Östlund-Papadogeorgos, Adel Aminian, Keith G Oldroyd, Nawwar Al-Attar, Nikola Jagic, Jan-Henk E Dambrink, Petr Kala, Oskar Angerås, Philip MacCarthy, Olaf WendlerFilip Casselman, Nils Witt, Kreton Mavromatis, Steven E S Miner, Jaydeep Sarma, Thomas Engstrøm, Evald H Christiansen, Pim A L Tonino, Michael J Reardon, Di Lu, Victoria Y Ding, Yuhei Kobayashi, Mark A Hlatky, Kenneth W Mahaffey, Manisha Desai, Y Joseph Woo, Alan C Yeung, Nico H J Pijls, FAME 3 Investigators

Abstract

BACKGROUND: Patients with three-vessel coronary artery disease have been found to have better outcomes with coronary-artery bypass grafting (CABG) than with percutaneous coronary intervention (PCI), but studies in which PCI is guided by measurement of fractional flow reserve (FFR) have been lacking.

METHODS: In this multicenter, international, noninferiority trial, patients with three-vessel coronary artery disease were randomly assigned to undergo CABG or FFR-guided PCI with current-generation zotarolimus-eluting stents. The primary end point was the occurrence within 1 year of a major adverse cardiac or cerebrovascular event, defined as death from any cause, myocardial infarction, stroke, or repeat revascularization. Noninferiority of FFR-guided PCI to CABG was prespecified as an upper boundary of less than 1.65 for the 95% confidence interval of the hazard ratio. Secondary end points included a composite of death, myocardial infarction, or stroke; safety was also assessed.

RESULTS: A total of 1500 patients underwent randomization at 48 centers. Patients assigned to undergo PCI received a mean (±SD) of 3.7±1.9 stents, and those assigned to undergo CABG received 3.4±1.0 distal anastomoses. The 1-year incidence of the composite primary end point was 10.6% among patients randomly assigned to undergo FFR-guided PCI and 6.9% among those assigned to undergo CABG (hazard ratio, 1.5; 95% confidence interval [CI], 1.1 to 2.2), findings that were not consistent with noninferiority of FFR-guided PCI (P = 0.35 for noninferiority). The incidence of death, myocardial infarction, or stroke was 7.3% in the FFR-guided PCI group and 5.2% in the CABG group (hazard ratio, 1.4; 95% CI, 0.9 to 2.1). The incidences of major bleeding, arrhythmia, and acute kidney injury were higher in the CABG group than in the FFR-guided PCI group.

CONCLUSIONS: In patients with three-vessel coronary artery disease, FFR-guided PCI was not found to be noninferior to CABG with respect to the incidence of a composite of death, myocardial infarction, stroke, or repeat revascularization at 1 year. (Funded by Medtronic and Abbott Vascular; FAME 3 ClinicalTrials.gov number, NCT02100722.).

Original languageEnglish
JournalThe New England journal of medicine
Volume386
Issue number2
Pages (from-to)128-137
Number of pages10
ISSN0028-4793
DOIs
Publication statusPublished - 13 Jan 2022

Keywords

  • Aged
  • Cardiovascular Diseases/epidemiology
  • Coronary Artery Bypass/adverse effects
  • Coronary Stenosis/mortality
  • Female
  • Fractional Flow Reserve, Myocardial
  • Humans
  • Kaplan-Meier Estimate
  • Length of Stay
  • Male
  • Middle Aged
  • Operative Time
  • Percutaneous Coronary Intervention/adverse effects
  • Reoperation
  • Stents

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