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  • Clinical Study of Long-term Patency Rate of Great Saphenous Veins Transplanted by Coronary Artery Bypass Grafting

    ObjectiveTo summarize the experience of 4 patients with a great saphenous venous graft patency after 15 years of postoperitive great saphenous venous sequential aortic coronary artery bypass grafting. MethodWe retrospectively analyzed the clinical data of 4 patients accepted great saphenous vein aortic coronary artery bypass graft under moderate hypothermia cardiopulmonary bypass from November 1989 to December 1992 year. There were 3 males and 1 female with a mean age of 48.3 years ranging from 40-58 years. We harvested great saphenous vein under groin 45-50 cm. The proximal and distal anastomoses were performed with parachute technique under two clamps technique. Coronary artery bypass graft was performed by two sequential grafts routinely. Aspirin was given through nasal tube 6 hours after operation. The risk factors of arteriosclerosis were controlled by patients themselves after discharge. ResultFour patients received coronary angiography in 15, 16, 18, and 21 years after surgery and the grafts and both proximal and distal anastomoses were patent. The patients lived about 20 years without angina. Conclusioncarefully dealing with the vein graft, taking sequential bypass grafting to guarantee parabolic curve and meticulous anastomosis are preconditional and necessary for long-term patency.

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