The effect of CTO recanalization on FFR of the donor artery.
This case illustrates that fractional flow reserve (FFR) in addition to the severity and length of the coronary stenosis is critically dependent on the extent of viable myocardium perfused. In the presented case, the left anterior descending artery (LAD) that had modest angiographic stenosis supplied collaterals to the entire left ventricle. After recanalization of chronic total occlusions (CTO) of the right and circumflex arteries, FFR in the LAD had normalized.
Sachdeva
Rajesh
R
Central Arkansas Veterans Healthcare System & University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA. rrsachdeva@gmail.com
Uretsky
Barry F
BF
D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation; D002908:Chronic Disease; D003097:Collateral Circulation; D017023:Coronary Angiography; D054059:Coronary Occlusion / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D053805:Fractional Flow Reserve, Myocardial; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D015607:Stents; D016896:Treatment Outcome; D019564:Unnecessary Procedures