Background: The purpose of the study was to measure the blood flow in coronary artery bypass grafting conduits on-pump and off-pump and to estimate the total conduit flow.
Methods: In a 3.5-year period, 120 patients having coronary artery bypass grafting on-pump and 97 patients having coronary artery bypass grafting off-pump with the left internal mammary artery anastomosed to the left anterior descending artery and saphenous vein grafts to the remaining diseased coronary arteries were included in the study.