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背景冠状动脉旁路移植术目前仍是冠心病患者的最佳手术方法,能最大程度改善患者生存率.由于获取方便、长度足够、管径大等优势,大隐静脉(great saphenous vein,GSV)仍是目前全球各大中心最常用的桥血管移植物.大隐静脉的远期通畅率偏低一直是妨碍其发展的重要原因.术中获取的牵拉损伤、静脉保存液的选择、手术方法等都会影响其近期和远期的通畅率.研究进展近5年,许多临床研究结果均从不同角度反映了GSV的近期或远期通畅率,给临床工作提供了一些新的证据及线索.内容本文将综述影响大隐静脉在冠状动脉旁路移植术中近期及远期通畅率的因素.“,”Coronary artery bypass grafting(CABG) is still the optimal surgical treatment for patients with coronary heart disease(CHD),as it can improve patients' survival rates to the large extent.Great saphenous vein(GSV) is still the most common grafts available in all cardiac centers around the world because of advantages of convenient harvesting,sufficient length and perfect matched runoff diameter.However,the relatively low late patency of GSV hinders its development for quite a long time.A lot of procedures will affect the patency of GSV,including:stretching during the harvesting,different use of preserving liquid,various ways of operation and so on.Research updates Over the past 5 years,data from some clinical trials,both retrospective and perspective ones,demonstrate some factors that can influence the late patency of GSV from different perspectives,which provide some new evidences for the clinic job.Contents This paper reviews some factors can influence the late patency of GSV in patients who have undergone the CABG.