ISSN 2398-2977      

Colon: resection

pequis

Introduction

  • There are a number of indications for colon resection in the horse.
  • Much, but not all of the large colon is resectable, but only lesions up to the level of the cecocolic ligament are exteriorizable from the ventral midline laparotomy Abdomen: surgical approaches.
  • 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.
  • Removal of neoplasia.

Advantages

  • Stapling equipment considerably reduces time for resection and decreases contamination, but increases the cost of the procedure.

Disadvantages

  • Not all of large colon is exteriorizable or resectable.
  • Resection at cecocolic junction is feasible but involves considerable problems and risks.
  • Large resections are not 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

Aftercare

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.
  • Pezzanite L M & Hackett E S (2017) Technique-associated outcomes in horses following large colon resection. Vet Surg 46 (8), 1061-1067 PubMed.
  • Gonzalez L M, Fogle C A, Baker W T et al (2015) Operative factors associated with short-term outcome in horses with large colon volvulus: 47 cases from 2006 to 2013. Equine Vet J 47 (3), 279-84 PubMed.
  • Debareiner, R M, Sullins, K E & Goodrich, L R (1996) Large colon resection for treatment of lymphosarcoma in two horses. JAVMA 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.

Other sources of information

  • Southwood L L (2019) Large Colon. In: Equine Surgery. 5th edn. Eds: Auer J & Stick J. Saunders, USA. pp 591-621.

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