ISSN 2398-2977      

Colon: resection

pequis
Contributor(s):

Graham Munroe


Introduction

  • There are a number of indications for colon resection in the horse.
  • Up to 95% of the large colon is resectable but only lesions up to the level of the cecocolic ligament are exteriorisable from the ventral midline laparotomy   Abdomen: surgical approaches  .
  • Lesions in the terminal right dorsal colon and oral right ventral colon are not removable.
  • Horses in which 60% of the colon is removed experience adaptive changes and return to normal gut function within 5-6 months.
  • Resections > 60% partially adapt but require diets such as alfalfa hay to maintain weight.
  • Fecal bulk increases due to fecal water increase and subsequent increase in water consumption.
  • Localized lesions may be amenable to selective resection and end-to-end anastomosis by hand suturing .
  • Greater amounts of resection require a side-to-side anastomosis with closure of the ends of the dorsal and ventral colons - may be performed by hand suturing or surgical stapling techniques .

Uses

  • Strangulation obstruction of large colon usually due to colonic volvulus   Colon: torsion  .
  • Intramural lesions of the colon , eg eosinophilic granulomas, hematomas, fibrotic plaques, ulcerative lesions   →   persistent functional obstruction.
  • Focal strictures   Gastrointestinal: stricture  .
  • Mural devitalization due to long-standing obstructions eg impactions   Colon: impaction  , entero/fecoliths   Gastrointestinal: enterolith  .

Advantages

  • Stapling equipment considerably reduces time for resection and decreases contamination.

Disadvantages

  • Not all of large colon is exteriorisable or resectable.
  • Resection at cecocolic junction is feasible but involves considerable problems and risks.
  • Only small resections are amenable to end-to-end anastomosis.
  • Stapling equipment is expensive and does not work well with thickened tissues.

Requirements

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Preparation

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Procedure

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Outcomes

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Prognosis

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Debareiner, R M, Sullins, K E & Goodrich, L R (1996) Large colon resection for treatment of lymphosarcoma in two horses. J Am Vet Med Assoc 208 (6) 895-897 PubMed.
  • Rose P L, Bradley W M (1992) Resection and anastomosis for treatment of stangulating volvulus of the large colon of horses. JAVMA 201 (3), 454-457 PubMed.

Can’t find what you’re looking for?

We have an ever growing content library on Vetlexicon so if you ever find we haven't covered something that you need please fill in the form below and let us know!

 
 
 
 

To show you are not a Bot please can you enter the number showing adjacent to this field

 Security code