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Post-temporary ligation intra-operative mesenteric portovenography: comparison with computed tomographic angiography for investigation of portosystemic shunts

Parry, Andrew; White, Robert N.

Authors

Andrew Parry

ROB WHITE Rob.White@nottingham.ac.uk
Professor of Practice



Abstract

Objectives: Comparison of pre-operative computed tomographic angiography and post-temporary full ligation intraoperative mesenteric portovenography for the documentation of the intrahepatic portal vasculature in patients with single extrahepatic portosystemic shunts.
Methods: Retrospective study of patients with extrahepatic portosystemic shunts that underwent preoperative computed tomographic angiography and intra-operative mesenteric portovenography after temporary full ligation of an identified shunt vessel. Studies were compared for appearance of the intrahepatic portal vasculature.
Results: Fourteen dogs and five cats were included in the study with various single congenital extrahepatic portosystemic shunts variations. With the exception of those shunts involving the right gastric vein, the identification of the intrahepatic arborisation was similar on both modalities. Subjectively, however, there was improved contrast enhancement, as well as slight enlargement of the intrahepatic portal vasculature, on portovenography compared to computed tomographic angiography.
Clinical significance: This paper shows that computed tomographic angiography cannot replace intraoperative mesenteric portovenography after temporary full ligation, which provides
information regarding the development of intrahepatic portal vascularity. It is a practical and dynamic procedure providing results which are instantaneously available at the time of surgery. In addition, TFL-IOMP confirmed both that the shunting vessel had been recognised and only one vessel was present.

Citation

Parry, A., & White, R. N. (2018). Post-temporary ligation intra-operative mesenteric portovenography: comparison with computed tomographic angiography for investigation of portosystemic shunts. Journal of Small Animal Practice, 59(2), https://doi.org/10.1111/jsap.12786

Journal Article Type Article
Acceptance Date Sep 28, 2017
Online Publication Date Nov 24, 2017
Publication Date Feb 2, 2018
Deposit Date Oct 3, 2017
Publicly Available Date Nov 25, 2018
Journal Journal of Small Animal Practice
Print ISSN 0022-4510
Electronic ISSN 1748-5827
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 59
Issue 2
DOI https://doi.org/10.1111/jsap.12786
Keywords Intraoperative mesenteric portovenography (IOMP), computed tomographic angiography (CTA), portosystemic shunt
Public URL http://eprints.nottingham.ac.uk/id/eprint/46902
Publisher URL http://onlinelibrary.wiley.com/doi/10.1111/jsap.12786/abstract
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This is the peer reviewed version of the following article: Parry, A. T. and White, R. N. (2018), Post-temporary ligation intraoperative mesenteric portovenography: comparison with CT angiography for investigation of portosystemic shunts. J Small Anim Pract, 59: 106–111. doi:10.1111/jsap.12786
which has been published in final form at http://onlinelibrary.wi...11/jsap.12786/abstract. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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