title: Evaluation of the effect of onlay mesenteric flaps on end-to-end jejunojejunostomy healing in horses.
abstract: OBJECTIVE
  To evaluate the effect of onlay mesenteric flaps (MFs) with end-to-end jejunojejunostomy on stomal diameter, length of jejunum with reduced stomal diameter, abdominal adhesion formation, and healing.
  
  
  METHODS
  Experimental study.
  
  
  METHODS
  Healthy adult horses (n = 6).
  
  
  METHODS
  Two hand sewn end-to-end jejunal anastomoses using a 1 layer simple continuous serosubmucosal suture pattern were performed in each horse ∼ 2 and 5 m oral to the ileocecal fold. Using a random design for selection anastomosis location (oral or aboral), 1 anastomosis was covered with 2 adjacent onlay MFs secured with interrupted sutures and cyanoacrylate glue. Two weeks later, adhesion formation, stomal diameter, length of reduced jejunal stomal diameter, and healing were evaluated.
  
  
  RESULTS
  Use of onlay MFs decreased stomal diameter (P = .05), increased length of reduced peristomal jejunal diameter (P = .05), surgical time (P = .003), and serosal fibrosis (P = .05). No difference was evident for adhesion formation, and degree of inflammation between techniques.
  
  
  CONCLUSIONS
  End-to-end jejunojejunostomy covered with 2 onlay MFs is not recommended because this technique results in luminal reduction.
authors.affiliation: Departamento de Médicina Veterinária, Universidade Federal de Viçosa, Viçosa, MG, Brazil.
authors.forename: Fabio A
authors.initials: FA
authors.lastname: Aristizabal
authors.forename: Marco Aurélio
authors.initials: MA
authors.lastname: Lopes
authors.forename: Adriana
authors.initials: A
authors.lastname: Silva
authors.forename: Marcel Ferreira
authors.initials: MF
authors.lastname: Avanza
authors.forename: Jorge E
authors.initials: JE
authors.lastname: Nieto
mesh_terms: D000818:Animals; D005260:Female; D006736:Horses; D007582:Jejunostomy / Q000379:methods / Q000662:veterinary*; D008297:Male; D008643:Mesentery / Q000601:surgery*; D011183:Postoperative Complications / Q000473:pathology / Q000662:veterinary; D013524:Surgical Flaps / Q000662:veterinary*; D013536:Suture Techniques / Q000662:veterinary; D014945:Wound Healing / Q000502:physiology*