Vascular Injury Associated with Naturally Occurring Strangulating Obstructions of the Equine Large Colon
Article first published online: 29 FEB 2008
Volume 19, Issue 6, pages 446–455, November 1990
How to Cite
SNYDER, J. R., PASCOE, J. R., OLANDER, H. J., HINDS, D. M., YOUNG, R. and TYLER, W. S. (1990), Vascular Injury Associated with Naturally Occurring Strangulating Obstructions of the Equine Large Colon. Veterinary Surgery, 19: 446–455. doi: 10.1111/j.1532-950X.1990.tb01232.x
- Issue published online: 29 FEB 2008
- Article first published online: 29 FEB 2008
Ten horses were euthanatized before, during, or after surgery to correct severe volvulus of the large colon. At surgery, the colonic serosa changed from blue-gray, blue or purple toward a more normal pink in seven horses after the volvulus was corrected. The mucosa consistently remained black or dark red. Results of postmortem colonic microangiography revealed perfusion of the serosa and the circular and longitudinal muscle layers, but mucosal perfusion was limited by thrombosis in the muscularis mucosae and submucosa. There was evidence of thrombosis of the mesenteric colic vessels in six horses. Damage to the colonic vascular system, especially thromboembolism in the submucosa, may be an important limitation to colonic viability after surgical correction of volvulus of the large colon.