Attrition Rate of Aorta-to-Coronary Artery Saphenous Vein Grafts After One Year

摘要: Abstract Angiographic studies were carried out one year after operation in 96 consecutive patients who had undergone aorta-to-coronary artery vein grafting and shown, an early postoperative study, patency of their grafts. On the late 30 133 initially patent grafts occluded. Severe diffuse or localized narrowing (> 80%) occurred 6 Factors which influenced (1) favorable blood flow measurements at time operation, (2) caliber recipient coronary arteries, (3) distal runoff. Mean intraoperative averaged 74.8 ml. per minute, compared to 44.4 minute became occluded operation. Late occlusion 15 81 arteries with a diameter 2 mm. more 40 1.5 less. Size, length graft, graft-to-coronary ratio did not affect patency. Early graft stenosis site anastomosis was noted 9 become Following this several changes made surgical technique should contribute lower failure rate saphenous