Suzanne G. Stewart, Janet K. Johnston, Eric J. Parente
Case Description—An 8-year-old multiparous Thoroughbred broodmare was admitted for evaluation of a rectal tear sustained during parturition.
Clinical Findings—On initial evaluation, the mare had mild signs of abdominal discomfort. A full-thickness rectal tear located 30 cm cranial to the anus and extending approximately 15 cm longitudinally along the surface of the small colon between the 4 and 6 o'clock positions, when viewed from behind, was diagnosed on examination per rectum.
Treatment and Outcome—Laparoscopic evaluation of the abdomen was performed to assess the tear and extent of peritoneal contamination. A hand-assisted repair via a flank incision was performed. The tear was closed in a single-layer, simple continuous pattern with size-0 polydioxanone with a handheld needle holder. Subsequently, a ventral midline celiotomy was performed, and intestinal contents were evacuated via a pelvic flexure enterotomy and a typhlotomy. Following surgery, the mare was managed with IV fluid therapy, partial parenteral nutrition, antimicrobials, and NSAIDs for 5 to 7 days before being gradually reintroduced to a complete pelleted feed and alfalfa hay. Prior to discharge, examination per rectum revealed no stricture formation associated with repair. The mare was discharged from the hospital and performed successfully as a broodmare, with the delivery of a live foal 1 year after surgery.
Clinical Relevance—Successful repair with an excellent outcome was achieved in this mare. Hand-assisted laparoscopic repair should be considered as a possible treatment option in horses with grade IV rectal tears.
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