title: Factors influencing patency of infrainguinal bypasses with polytetrafluoroethylene.
abstract: This retrospective study was undertaken to investigate the patency and limb salvage rates of 308 PTFE infrainguinal bypasses in 272 patients over a 5-year period. In addition a univariate analysis was performed to identify factors that could predict the outcome of these operations. Long-term survival was 83% and 50% at one and five years respectively. For the whole series the primary cumulative patency at one and five years was 70% and 41% respectively. Graft revision for failed or failing grafts resulted in secondary patency rates of 78% and 43% for the same periods. The limb salvage rates were 93% and 84% at one and five years. Patency rates showed no statistical significant difference for gender, age at operation or the use of a venous cuff at the distal anastomosis. Although there was a tendency towards better results for above the knee operations, this difference failed to achieve statistical significance. Only redo operations were associated with a significant worse outcome.
authors.affiliation: Department of Vascular Surgery, University Hospital Gasthuisberg, Leuven, Belgium.
authors.forename: B
authors.initials: B
authors.lastname: Thomas
authors.forename: H
authors.initials: H
authors.lastname: Lacroix
authors.forename: A
authors.initials: A
authors.lastname: Nevelsteen
authors.forename: R
authors.initials: R
authors.lastname: Suy
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001807:Blood Vessel Prosthesis; D005260:Female; D006083:Graft Occlusion, Vascular / Q000453:epidemiology*; D006801:Humans; D007264:Inguinal Canal / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D012086:Reoperation; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome
chemical_list: D011138:Polytetrafluoroethylene