Assessment of left main artery stenosis with fractional flow reserve is affected by downstream stenosis in the left anterior descending artery

aDepartment of Cardiology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia bDivision of Cardiovascular Medicine, Stanford University Medical Center, Stanford, California, USA Correspondence to Andy S.C. Yong, MBBS, PhD, Department of Cardiology, Level 3 West, Concord Repatriation General Hospital, 1A Hospital Road, Concord, Sydney, NSW 2039, Australia Tel: +61 2 9767 5000; fax: +61 2 9767 8395; e-mail: [email protected]