title: Patency of Wallstents placed across the venous anastomosis of hemodialysis grafts after percutaneous recanalization.
abstract: OBJECTIVE
  To determine the patency of Wallstents placed across the venous anastomosis of prosthetic bridge grafts after percutaneous graft recanalization.
  
  
  METHODS
  Wallstents were placed across 26 lesions at the venous anastomosis of polytetrafluoroethylene (PTFE) grafts in 25 patients (11 men, 14 women; age range, 29-83 years; mean age, 65.4 years) after pulse-spray pharmacomechanical thrombolysis. Indications for stent deployment included acute angioplasty failure, rapid restenosis, and vessel perforation.
  
  
  RESULTS
  The initial success rate was 100%. The mean primary graft patency rates (+/- standard error) at 3 and 6 months were 34% +/- 9 and 27% +/- 9, respectively. Secondary patency rates were 77% +/- 8 at 3 months, 72% +/- 9 at 6 months, and 50% +/- 10 at 12 months. Eight of the 26 grafts continued to be used for hemodialysis at the end of follow-up.
  
  
  CONCLUSIONS
  After angioplasty failure or vessel perforation, Wallstent placement at the venous anastomosis of recanalized PTFE grafts can salvage hemodialysis access function. The results of this study indicate that the 1-year secondary patency rate of these grafts is 50%, which approaches the reported rates of patency after balloon dilation as part of percutaneous graft recanalization.
authors.affiliation: Department of Radiology, St Luke's-Roosevelt Hospital Center, New York, NY, USA.
authors.forename: R I
authors.initials: RI
authors.lastname: Patel
authors.forename: S H
authors.initials: SH
authors.lastname: Peck
authors.forename: S G
authors.initials: SG
authors.lastname: Cooper
authors.forename: D M
authors.initials: DM
authors.lastname: Epstein
authors.forename: C T
authors.initials: CT
authors.lastname: Sofocleous
authors.forename: I
authors.initials: I
authors.lastname: Schur
authors.forename: A
authors.initials: A
authors.lastname: Falk
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical; D000800:Angioplasty, Balloon; D001807:Blood Vessel Prosthesis; D005260:Female; D005343:Fibrinolytic Agents / Q000008:administration & dosage; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000628:therapy*; D006493:Heparin / Q000008:administration & dosage; D006801:Humans; D008297:Male; D011138:Polytetrafluoroethylene; D006435:Renal Dialysis; D015607:Stents; D015912:Thrombolytic Therapy; D013997:Time Factors; D014568:Urokinase-Type Plasminogen Activator / Q000008:administration & dosage; D014654:Vascular Patency
chemical_list: D005343:Fibrinolytic Agents; D011138:Polytetrafluoroethylene; D006493:Heparin; D014568:Urokinase-Type Plasminogen Activator