title: Horizontal mattress technique for anastomosis of size-mismatched vessels.
abstract: OBJECTIVE
  To evaluate the horizontal mattress technique in microvascular anastomosis for size-mismatched vessels.
  
  
  METHODS
  The present study involved cadaveric simulation using size-mismatched (1.5:1) Thiel-embalmed cadaveric arteries. The authors performed horizontal mattress anastomoses using 9-0 nylon suture and recorded the procedure. Vessel patency was evaluated by saline infusion. Vessels were cut open and photographed; histological slides were prepared and stained with hematoxylin and eosin.
  
  
  RESULTS
  Four anastomoses were performed. Vessels were found to be patent in all cases, with grade 0 leaks. Intima-on-intima apposition with no intraluminal exposure of muscularis nor adventitia were observed.
  
  
  CONCLUSIONS
  The present cadaveric study supports the technical feasibility of using horizontal mattress sutures in size-mismatched end-toend anastomoses.
authors.affiliation: Plastic and Reconstructive Surgery Service;
authors.forename: Andrei
authors.initials: A
authors.lastname: Odobescu
authors.affiliation: Otolaryngology-Head and Neck Surgery Service, Notre-Dame Hospital, University of Montréal Hospital Center (CHUM);
authors.forename: Sami P
authors.initials: SP
authors.lastname: Moubayed
authors.affiliation: Department of Anatomy, McGill University, Montreal, Quebec.
authors.forename: Eugene
authors.initials: E
authors.lastname: Daniels
authors.affiliation: Plastic and Reconstructive Surgery Service;
authors.forename: Michel Alain
authors.initials: MA
authors.lastname: Danino
keywords: Horizontal mattress; Microvascular; Mismatch; Thiel