title: Suture-free technique for canine ureteral resection-anastomosis using a microvascular anastomotic system: a cadaveric study.
abstract: OBJECTIVE
  To describe a suture-free technique for canine ureteral resection-anastomosis using a microvascular anastomotic system (MAS) and to compare surgical time and burst pressure of hand-sewn (HS) ureteral end-to-end anastomosis with the MAS technique.
  
  
  METHODS
  Experimental ex vivo study.
  
  
  METHODS
  Canine cadavers (n = 8).
  
  
  METHODS
  For each cadaver, 1 ureter was randomly assigned to undergo HS anastomosis and the contralateral ureter had MAS anastomosis. The first 3 cadavers (6 ureters) were used to refine the MAS technique. In the other 5 dogs, surgical time and ureteral burst pressure were compared between groups (n = 5 ureters/group).
  
  
  RESULTS
  Preliminary procedures showed that selective impaling of the mucosa and submucosa (without muscularis and adventitia) is necessary to allow complete mechanical interlock of the anastomotic rings for the MAS technique. Median anastomotic time was significantly shorter for MAS (7.6 min) than HS (16.6 min; p = .029) and burst pressure higher for MAS (393 cm H2 O) than HS (180 cm H2 O; p = .012).
  
  
  CONCLUSIONS
  This study demonstrated the feasibility of a suture-free technique of canine ureteral resection-anastomosis using a commercially available MAS. The MAS anastomosis was faster and had higher burst strength compared with the HS anastomosis.
authors.affiliation: Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, Columbus, Ohio.
authors.forename: Vincent
authors.initials: V
authors.lastname: Wavreille
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Adin
authors.forename: Johnattan
authors.initials: J
authors.lastname: Arango
authors.forename: Kathleen L
authors.initials: KL
authors.lastname: Ham
authors.forename: Julie K
authors.initials: JK
authors.lastname: Byron
authors.forename: Mary A
authors.initials: MA
authors.lastname: McLoughlin
mesh_terms: D000714:Anastomosis, Surgical / Q000379:methods / Q000662:veterinary*; D000818:Animals; D002102:Cadaver; D004285:Dogs; D011897:Random Allocation; D013536:Suture Techniques / Q000662:veterinary*; D014513:Ureter / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods / Q000662:veterinary*