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Intestinal anastomotic healing in the absence of suture material: an experimental study in rats

  • W. J. B. Mastboom
  • T. Hendriks
  • H. H. M. de Boer
Original Articles

Abstract

In order to investigate the influence of sutures on intestinal anastomotic healing, 48 rats underwent both ileal and colonic resection. In 24 rats all intestinal sutures were removed 30 min after anastomotic construction (group 1), while in the remaining animals (group 2) the sutures were left in place. Bursting pressures and collagen (hydroxyproline) levels in anastomotic segments were measured 1, 3, and 7 days after operation. Two lethal ileal dehiscences and 9 anastomotic abscesses (5 ileal and 4 colonic) occurred in group 1, while in group 2 there were 3 ileal anastomotic abscesses. On the first day after operation, bursting pressures were significantly lower in sutureless ileal and colonic than in sutured anastomoses. During the post-operative course, changes in collagen concentrations in ileal and colonic segments did not differ between the groups. Thus, sutures are only essential in providing anastomotic strength during the immediate post-operative period, but do not seem to affect post-operative collagen metabolism.

Keywords

Collagen Ileal Hydroxyproline Colonic Resection Suture Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Dans le but d'étudier l'influence des sutures sur la cicatrisation des anastomoses intestinales, 48 rats ont subi une résection à la fois iléale et colique. 24 rats ont eu une résection de leur suture intestinale 30 minutes après la réalisation de l'anastomose, tandis que chez les animaux restants les sutures étaient laissé en place. 3 à 7 jours après l'opération la pression de rupture et les taux de collagène dans les segments anastomotiques ont été mesurés. Des fistules iléales mortelles et 9 abcés anastomotiques (5 iléaux et 4 coliques) sont survenus dans le groupe expℰimental contre trois abcés anastomotiques dans le groupe de contrôle. La pression de rupture était significativement plus basse au niveau des anastomoses à la fois iléales et coliques sans suture mais seulement le premier jour après l'opération. Les modifications postopératoires des concentrations de collagène dans les segments iléaux ou coliques ne différaient pas entre les deux groupes. Ainsi les sutures ont seulement un rôle essentiel en renforçant l'anastomose durant la période post-opératoire tout à fait initiale mais ne semblent pas affecter le métabolisme post-opératoire du collagène.

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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • W. J. B. Mastboom
    • 1
  • T. Hendriks
    • 1
  • H. H. M. de Boer
    • 1
  1. 1.Department of General SurgerySt. Radboud University HospitalNijmegenThe Netherlands

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