Morphology of congenital portosystemic shunts involving the left colic vein in dogs and cats

White, Robert N.; Parry, A.T.

Abstract

OBJECTIVE
To describe the anatomy of congenital portosystemic shunts involving the left colic vein in dogs and cats.

METHODS
Retrospective review of a consecutive series of dogs and cats managed for congenital portosystemic shunts. For inclusion a shunt involving the left colic vein with recorded intraoperative mesenteric portovenography or computed tomography angiography along with direct gross surgical observations at the time of surgery was required.

RESULTS
Six dogs and three cats met the inclusion criteria. All cases had a shunt which involved a distended left colic vein. The final communication with a systemic vein was variable; in seven cases (five dogs, two cats) it was via the caudal vena cava, in one cat it was via the common iliac vein and in the remaining dog it was via the internal iliac vein. In addition, two cats showed caudal vena cava duplication.

CLINICAL SIGNIFICANCE
The morphology of this shunt type appeared to be a result of an abnormal communication between either the left colic vein or the cranial rectal vein and a pelvic systemic vein (caudal vena cava, common iliac vein or internal iliac vein). This information may help with surgical planning in cases undergoing shunt closure surgery.

Citation

White, R. N., & Parry, A. (in press). Morphology of congenital portosystemic shunts involving the left colic vein in dogs and cats. Journal of Small Animal Practice, 57(5), https://doi.org/10.1111/jsap.12454

• Journal Article Type: Article
• Acceptance Date: Jan 22, 2016
• Online Publication Date: Mar 7, 2016
• Deposit Date: Jul 12, 2017
• Publicly Available Date: Jul 12, 2017
• Journal: Journal of Small Animal Practice
• Print ISSN: 0022-4510
• Electronic ISSN: 1748-5827
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 57
• Issue: 5
• DOI: https://doi.org/10.1111/jsap.12454
• Public URL: https://nottingham-repository.worktribe.com/output/781273
• Publisher URL: http://onlinelibrary.wiley.com/doi/10.1111/jsap.12454/abstract
• Additional Information: This is the peer reviewed version of the following article: White, R. N. and Parry, A. T. (2016), Morphology of congenital portosystemic shunts involving the left colic vein in dogs and cats. Journal of Small Animal Practice, 57: 247–254. doi: 10.1111/jsap.12454, which has been published in final form at http://dx.doi.org/10.1111/jsap.12454 ; This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
• Contract Date: Jul 12, 2017