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Second Arterial Conduit Improves Survival After Coronary Artery Bypass Grafting: Presented at STS By Charlene Laino FORT LAUDERDALE, Fla -- January 27, 2010 -- The use of a second arterial conduit, the radial artery, improves long-term survival after coronary artery bypass grafting (CABG) using the left internal thoracic artery and saphenous vein, according to a retrospective study presented here at the Society of Thoracic Surgeons (STS) 46th Annual Meeting. “The use of 2 arterial conduits offers a clear and lasting survival advantage, suggesting that radial artery conduits should be more widely utilised during CABG,” said Robert F. Tranbaugh, MD, Cardiac Surgery, Beth Israel Medical Center, New York, New York, on January 26. The researchers compared 14-year outcomes in 1,820 propensity-matched patients undergoing isolated, primary CABG using the left internal thoracic artery, the radial artery, and the saphenous vein (radial artery arm, n = 910) or the left internal thoracic artery and the saphenous vein alone (saphenous vein arm, n = 910). The average age of the patients was 60 years, 78% were male, 39% had diabetes, and the average ejection fraction was 48%. Patients had an average of 3.7 grafts each. The in-hospital mortality rate was 0.1% for the patients in the radial artery group versus 0.2% for the patients in whom a second arterial conduit was not used (P = NS). The 10-year survival rate was 84% in the radial artery group, compared with 73% for the saphenous vein group (P < .0001). In a Cox proportional hazards models, patients in the radial artery group were 40% less likely to die from any cause then patients in the saphenous vein arm (P < .0005). There was no significant difference in the incidence of myocardial infarction, stroke, renal failure, sternal infection, and reoperations for bleeding between the 2 arms. [Presentation title: Radial Artery Conduits Improve Long-Term Survival After Coronary Artery Bypass Surgery. Abstract 24] E-mail this page to a friend or colleague! To print, use this version