title: A pitfall of fractional flow reserve associated with the presence of collateral circulation.
abstract: An 82-year-old man had a severe stenosis in the proximal left anterior descending artery (LAD) and an intermediate stenosis in the distal right coronary artery (RCA). The territory of mid to distal LAD was perfused via an angiographically well-developed collateral circulation from the distal RCA. Fractional flow reserve (FFR) in the distal RCA was 0.84. After successful coronary intervention for the proximal LAD, repeat FFR in the distal RCA was 0.96. In this case, the severity of the stenosis in the donor artery was overestimated by using FFR due to the presence of well-developed collateral circulation.
authors.affiliation: Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical Sciences, Japan. skurisu@nifty.com
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kurisu
authors.forename: Naoya
authors.initials: N
authors.lastname: Mitsuba
authors.forename: Ken
authors.initials: K
authors.lastname: Ishibashi
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Kato
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Dohi
authors.forename: Kenji
authors.initials: K
authors.lastname: Nishioka
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Kihara
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003097:Collateral Circulation / Q000502:physiology*; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology* / Q000601:surgery; D003331:Coronary Vessels / Q000503:physiopathology; D054855:Drug-Eluting Stents; D053805:Fractional Flow Reserve, Myocardial / Q000502:physiology*; D006801:Humans; D008297:Male; D009204:Myocardial Revascularization