Steinthorsson G, Sumpio B
Department of Vascular Surgery, Yale University School of Medicine, USA.
Acta Chir Belg. 1999 Dec;99(6):282-8.
Since a significant number of patients do not have suitable autologous saphenous vein for femorodistal bypass, the search for alternative graft material continues. The most commonly used prosthetic material is Polytetrafluoroethylene, however because of the poor patency of these grafts in the below knee position, a variety of techniques have been tried to improve their patency. A series of studies utilizing venous cuffs at the distal anastomosis have showed improved patency of PTFE grafts. We have reviewed the biological basis for graft failure and the literature for possible mechanical explanations.
由于大量患者没有适合用于股腘动脉搭桥的自体大隐静脉，因此对替代移植材料的探索仍在继续。最常用的人工合成材料是聚四氟乙烯，然而，由于这些移植物在膝下位置的通畅率较低，人们尝试了各种技术来提高其通畅率。一系列在远端吻合处使用静脉袖套的研究表明，聚四氟乙烯移植物的通畅率有所提高。我们回顾了移植物失败的生物学基础以及可能的机械学解释的相关文献。
