title: Normal fractional flow reserve with a critical stenosis supplying viable myocardium.
abstract: A high-grade stenosis to viable myocardium typically produces a positive fractional flow reserve. In the present report, a case of subtotal occlusion of a saphenous vein graft to a viable myocardial territory with normal fractional flow reserve is described, and a possible explanation for this observation is discussed.
authors.affiliation: Central Arkansas Veterans Health System, Little Rock, Arkansas, USA.
authors.forename: Sandeep
authors.initials: S
authors.lastname: Singla
authors.forename: Rajesh
authors.initials: R
authors.lastname: Sachdeva
authors.forename: Barry F
authors.initials: BF
authors.lastname: Uretsky
keywords: Coronary artery bypass surgery; Fractional flow reserve; Myocardial viability; Percutaneous coronary intervention