Dahl B T, Lorentzen J E
Rigshospitalet, København, karkirurgisk afdeling RK.
Ugeskr Laeger. 1991 Jan 21;153(4):260-3.
During the past 15 years, PTFE vascular prostheses have been employed as an alternative graft material in patients with peripheral arteriosclerosis of the lower extremity and no suitable autogenous saphenous vein for employment as a bypass route. PTFE is a porous polymer of teflon which becomes incorporated into the tissue by invasion of fibroblasts into the material after implantation. The result of the operation as indicated by the patency of the prosthesis depends on the length of the bypassed occluded arterial segment, the quality of the artery where the distal anastomosis is made, the preoperative fall in pressure in the extremity, coagulopathy and the development of intimal hyperplasia. The results after short bypass operations are insignificantly different from the results after the use of autologous saphenous vein. The use of PTFE in infrainguinal bypass operations is an acceptable alternative to autogenous saphenous vein.
在过去15年中，聚四氟乙烯血管假体已被用作下肢外周动脉硬化患者的替代移植材料，这些患者没有合适的自体大隐静脉作为旁路途径。聚四氟乙烯是一种多孔的聚四氟乙烯聚合物，植入后成纤维细胞侵入该材料，使其融入组织。假体通畅情况所显示的手术结果取决于旁路闭塞动脉段的长度、进行远端吻合的动脉质量、术前肢体压力下降情况、凝血功能障碍以及内膜增生的发展。短旁路手术的结果与使用自体大隐静脉后的结果差异不显著。在腹股沟下旁路手术中使用聚四氟乙烯是自体大隐静脉的可接受替代方案。
