Effects of hypertonic saline replacement on colonic anastomosis in experimental hemorrhagic shock model in rats

Ulus Travma Acil Cerrahi Derg. 2021 Nov;27(6):613-618. doi: 10.14744/tjtes.2020.00268.

Abstract

Background: Inadequate intestinal perfusion resulting from hemorrhagic shock negatively affects wound healing. In this experimental study, we aimed to evaluate the effects of resuscitation with hypertonic saline on colonic anastomosis in rats with controlled hemorrhagic shock.

Methods: A total of 24 male Wistar albino rats weighing between 200 and 250 g were used in this study. The rats were divided into four groups as: Control, hypotonic, isotonic, and hypertonic. Median laparotomy, colon resection, and colocolonic anastomosis were performed to the rats in the control group. After creating controlled hemorrhagic shock to rats in other three groups, resuscitation was achieved with hypotonic, isotonic, and hypertonic saline. After resuscitation, median laparotomy, colon resection, and colocolonic anastomosis were performed on rats in these three groups. On the 5th post-operative day, a median laparotomy was applied to the rats in all groups and anastomosis lines were evaluated. Anastomotic bursting pressure, tissue hydroxyproline level, and tissue fibrosis degree were compared between the groups.

Results: There was no statistically significant difference between the groups in terms of anastomotic bursting pressure, tissue hydroxyproline level, and tissue fibrosis degree (respectively; p=0.320, p=0.537, p>0.05).

Conclusion: In rats with controlled hemorrhagic shock, resuscitation with hypertonic saline does not differ significantly from isotonic or hypotonic saline in terms of healing of colonic anastomosis.

MeSH terms

  • Anastomosis, Surgical
  • Animals
  • Colon / surgery
  • Hydroxyproline
  • Male
  • Rats
  • Rats, Wistar
  • Saline Solution, Hypertonic
  • Shock, Hemorrhagic* / therapy

Substances

  • Saline Solution, Hypertonic
  • Hydroxyproline