Arch Surg. 1988 Apr;123(4):434-8. doi: 10.1001/archsurg.1988.01400280040008.
In 1983, the Veterans Administration initiated a cooperative study in 18 medical centers to perform a prospective comparative evaluation of vascular grafts. Five hundred ninety-six patients have had femoropopliteal below-knee or femorotibial-peroneal (polytetrafluoroethylene, umbilical vein, in situ, or reversed saphenous vein) bypasses. Patency evaluation at two years revealed that for femoropopliteal below-knee reconstruction, the vein patency (76%) was better than prosthetic patency (64%). For femorotibial-peroneal reconstructions, the two-year patency for vein bypasses (73%) was significantly better than for prosthetic bypass grafts (30%). In general, the site of the distal anastomosis did not affect vein patency, but, with prosthetic bypasses, patency at two years progressively decreased with a more distal anastomosis. In situ and reversed saphenous vein bypasses had similar two-year patency for both femoropopliteal below-knee and femorotibial reconstructions.
1983年，退伍军人管理局在18个医疗中心发起了一项合作研究，对血管移植物进行前瞻性比较评估。596例患者接受了膝下股腘或股胫腓（聚四氟乙烯、脐静脉、原位或反转大隐静脉）旁路移植术。两年时的通畅性评估显示，对于膝下股腘重建，静脉通畅率（76%）优于人工血管通畅率（64%）。对于股胫腓重建，静脉旁路移植术的两年通畅率（73%）显著优于人工血管旁路移植术（30%）。一般来说，远端吻合部位不影响静脉通畅性，但对于人工血管旁路移植术，随着吻合部位更靠近远端，两年时的通畅率逐渐降低。原位和反转大隐静脉旁路移植术在膝下股腘和股胫重建中的两年通畅率相似。
