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Early and late graft occlusion remains a significant complication of coronary artery bypass grafting. Transit time flowmetry is the most commonly used imaging technique to assess graft patency intraoperatively. Although the value of transit time flowmetry for intraoperative quality control of coronary anastomosis is well established, its standard variables for predicting eventual graft failure remain controversial. This review readdresses the issue of intraoperative transit time flowmetry, with a particular emphasis on defining cutoff values for standard variables and correlating them with the ability to predict midterm and long-term graft patency for arterial and venous conduits. Further research is warranted to support clinically useful recommendations on the intraoperative application and interpretation of transit time flowmetry.

Original publication

DOI

10.1016/j.athoracsur.2015.10.101

Type

Journal article

Journal

Ann Thorac Surg

Publication Date

05/2016

Volume

101

Pages

1996 - 2006

Keywords

Coronary Angiography, Coronary Artery Bypass, Coronary Restenosis, Graft Occlusion, Vascular, Humans, Intraoperative Care, Pulse Wave Analysis, Rheology, Treatment Outcome, Vascular Patency