title: Vessel length following laparoscopic donor nephrectomy: impact of vascular ligation technique on allograft vessel length.
abstract: OBJECTIVE
  A variety of techniques have been used to secure the renal artery and vein during laparoscopic donor nephrectomy. The purpose of this study is to compare the amount of vessel length lost when the artery and vein are secured with four different techniques.
  
  
  METHODS
  A model was constructed to simulate a left laparoscopic donor nephrectomy. In this model vessel length lost was determined when veins were secured using polymer locking (PL) clips, the endo-GIA stapling device, and the endo-TA stapling device. Arterial length lost was determined for the same three techniques, as well as securing the artery with titanium (Ti) clips.
  
  
  RESULTS
  The mean arterial length lost for the PL clips, Ti clips, endo-TA, and endo-GIA stapling devices was 6.2, 6.3, 9.8, and 10.0 mm, respectively. Both clip types produced less loss of arterial length than both types of stapling devices (P<0.001), and there was no difference between the two types of stapling devices (P=0.73) or clips (P=0.85). The mean venous length lost for the PL clip, endo-GIA, and endo-TA stapling devices was 5.7, 10.1, and 9.4 mm, respectively. The PL clips resulted in significantly less vessel loss compared to both stapling devices (P<0.001), and there was no difference between the two stapling devices (P=0.40).
  
  
  CONCLUSIONS
  Both types of clips resulted in longer graft arterial lengths compared to both stapling devices. PL clips resulted in longer graft vein length compared to the two stapling devices. The endo-TA stapling device was limited in this model by its inability to articulate.
authors.affiliation: Division of Urology and Transplantation, Loma Linda University Medical Center, Loma Linda, California 92354, USA.
authors.forename: Forrest C
authors.initials: FC
authors.lastname: Jellison
authors.forename: Satyan K
authors.initials: SK
authors.lastname: Shah
authors.forename: Joe W
authors.initials: JW
authors.lastname: Mashni
authors.forename: Lesli I
authors.initials: LI
authors.lastname: Nicolay
authors.forename: Okechukwu K
authors.initials: OK
authors.lastname: Ojogho
authors.forename: D Duane
authors.initials: DD
authors.lastname: Baldwin
mesh_terms: D000818:Animals; D006488:Hemostasis, Surgical / Q000295:instrumentation*; D006801:Humans; D016030:Kidney Transplantation; D010535:Laparoscopy; D008026:Ligation / Q000379:methods; D008954:Models, Biological; D009392:Nephrectomy; D012077:Renal Artery / Q000473:pathology / Q000601:surgery*; D012082:Renal Veins / Q000473:pathology / Q000601:surgery*; D013525:Surgical Instruments; D013528:Surgical Staplers; D014184:Transplantation, Homologous