Saphenous Vein Grafts With Multiple Versus Single Distal Targets in Patients Undergoing Coronary Artery Bypass Surgery One-Year Graft Failure and Five-Year Outcomes From the Project of Ex-Vivo Vein Graft Engineering via Transfection (PREVENT) IV Trial CIRCULATION Mehta, R. H., Ferguson, T. B., Lopes, R. D., Hafley, G. E., Mack, M. J., Kouchoukos, N. T., Gibson, C. M., Harrington, R. A., Califf, R. M., Peterson, E. D., Alexander, J. H. 2011; 124 (3): 280-288


Limited information exists on the intermediate-term graft patency and 5-year clinical outcomes of patients receiving saphenous vein grafts with multiple (m-SVG) versus single distal targets (s-SVG) during coronary artery bypass graft (CABG) surgery in the current era.We studied the association of the use of m-SVG versus s-SVG conduits with 1-year SVG failure (defined as =75% angiographic stenosis) and 5-year clinical events (death; death or myocardial infarction [MI]; and death, MI, or revascularization) in 3014 patients undergoing their first CABG surgery enrolled in the Project of Ex-vivo Vein Graft Engineering via Transfection (PREVENT) IV. Of 3014 patients enrolled in PREVENT IV, 1045 (34.7%) had =1 m-SVGs during CABG. Vein graft failure at 1-year was higher for m-SVG compared with s-SVG (adjusted odds ratio 1.24, 95% confidence interval 1.03 to 1.48). At 5 years, the adjusted composite of death, MI (including perioperative MI), or revascularization (hazard ratio 1.15, 95% confidence interval 1.00 to 1.31) and death or MI (hazard ratio 1.21, 95% confidence interval 1.03 to 1.43) were significantly higher in patients receiving m-SVGs.In patients undergoing first CABG surgery, the use of m-SVG was associated with a higher 1-year vein graft failure rate and trends toward worse clinical outcomes. Additional studies are needed to better understand the most appropriate conduit to improve long-term graft patency and clinical outcomes of patients undergoing CABG surgery. In the meantime, these data should encourage the use of s-SVG over m-SVG when feasible.

View details for DOI 10.1161/CIRCULATIONAHA.110.991299

View details for Web of Science ID 000292819300010

View details for PubMedID 21709060