title: Effect of timing of thrombectomy on survival of thrombosed arteriovenous hemodialysis grafts.
abstract: BACKGROUND
  The use of an arteriovenous (AV) graft for hemodialysis is associated with a relatively high rate of thrombosis. Unfortunately, the urgent thrombectomy is not always readily available. Our aim was to investigate a possible association between the timing of thrombectomy and the patency rates of AV grafts.
  
  
  METHODS
  A retrospective single-center study on patients who underwent thrombectomy of clotted AV grafts was conducted. According to the time of thrombectomy, all patients were divided into 4 groups.
  
  
  RESULTS
  Primary graft patency at 6 months after thrombectomy was 28.3%, with no significant difference between the study groups (P = .161). Secondary graft patency at 6 months was significantly worse in the group that underwent thrombectomy between the third and fifth days than in the whole cohort: 15.4% versus 45.6% (P = .038).
  
  
  CONCLUSIONS
  Timing of thrombectomy of a clotted AV graft may have a significant impact on the graft survival.
authors: Department of Vascular Surgery, Assaf Harofeh Medical Center, Zerifin, Israel. igorrabin@asaf.health.gov.il
authors: Igor
authors: I
authors: Rabin
authors: Michal
authors: M
authors: Shani
authors: Jabir
authors: J
authors: Mursi
authors: Amir
authors: A
authors: Peer
authors: Ilia
authors: I
authors: Beberashvili
authors: Arie
authors: A
authors: Bass
authors: Leonid
authors: L
authors: Feldman
mesh_terms: D000368:Aged; D001166:Arteriovenous Shunt, Surgical / Q000009:adverse effects*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects*; D016009:Chi-Square Distribution; D005260:Female; D006083:Graft Occlusion, Vascular / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D006085:Graft Survival; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis; D012086:Reoperation; D012189:Retrospective Studies; D017131:Thrombectomy / Q000009:adverse effects; D013927:Thrombosis / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D013997:Time Factors; D016896:Treatment Outcome; D014654:Vascular Patency
keywords: arteriovenous graft; graft failure; hemodialysis; thrombosis; vascular access