title: Vascular access for chronic hemodialysis: polytetrafluoroethylene (PTFE) versus bovine heterograft.
abstract: Between May 1975 and March 1977, 193 bovine heterografts and 184 polytetrafluoroethylene (PTFE) grafts (Impragrafts) have been placed for hemodialysis access. A comparison of these materials demonstrates that Impragrafts have significantly fewer late thromboses, increased resistance to infection, and comparable longevity, and they are easier to repair.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001132:Arm / Q000098:blood supply*; D001166:Arteriovenous Shunt, Surgical / Q000379:methods*; D002339:Carotid Arteries / Q000637:transplantation*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D006435:Renal Dialysis; D013536:Suture Techniques; D013997:Time Factors; D014183:Transplantation, Heterologous
chemical_list: D011138:Polytetrafluoroethylene