Omental torsion in a captive polar bear (Ursus maritimus).

Citation data:

Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, ISSN: 1042-7260, Vol: 45, Issue: 1, Page: 169-72

Publication Year:
2014
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PMID:
24712179
DOI:
10.1638/2013-0077r.1
Author(s):
Mendez-Angulo, Jose L, Funes, Francisco J, Trent, Ava M, Willette, Michelle, Woodhouse, Kerry, Renier, Anna C
Publisher(s):
American Association of Zoo Veterinarians
Tags:
Agricultural and Biological Sciences, Veterinary
article description
This is the first case report of an omental torsion in a polar bear (Ursus maritimus). A captive, 23-yr-old, 250-kg, intact female polar bear presented to the University of Minnesota Veterinary Medical Center with a 2-day history of lethargy, depression, and vomiting. Abdominal ultrasound identified large amounts of hyperechoic free peritoneal fluid. Ultrasound-guided abdominocentesis was performed and yielded thick serosanguinous fluid compatible with a hemoabdomen. An exploratory laparotomy revealed a large amount of malodorous, serosanguineous fluid and multiple necrotic blood clots associated with a torsion of the greater omentum and rupture of a branch of the omental artery. A partial omentectomy was performed to remove the necrotic tissue and the abdomen was copiously lavaged. The polar bear recovered successfully and is reported to be clinically well 6 mo later. This condition should be considered as a differential in bears with clinical signs of intestinal obstruction and hemoabdomen.

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