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  • Title: Techniques for overcoming atretic changes of the portal vein in living donor liver transplantation.
    Author: Lee JM, Lee KW.
    Journal: Hepatobiliary Pancreat Dis Int; 2020 Aug; 19(4):311-317. PubMed ID: 32636060.
    Abstract:
    BACKGROUND: Spontaneous diversion of the portal flow through collateral vessels into the systemic circulation is frequently observed in liver transplant recipients with severe portal hypertension. This induces main portal vein atretic change and modifies flow into the collateral even after donor graft implantation. These atretic changes make liver transplantation challenging. In this article we described several methods for overcoming this challenge by appropriate surgical techniques. METHODS: Three anastomotic techniques for living donor liver transplantation were performed in patients with atretic changes in the portal vein. RESULTS: The three techniques were (1) venoplasty to widen the diameter by using the recipient's portal vein, and the diameter of the recipient's portal vein was enlarged using their own portal vein stump patch; (2) conduit with cryopreserved vessels, and we dissected around the superior mesenteric vein and splenic vein junction and a conduit was built using the cryopreserved vessels; and (3) left gastric varix to portal vein anastomosis, if the recipients had large gastric varix and variceal wall was sufficiently thick for anastomosis. CONCLUSIONS: Selection of optimal methods for portal vein anastomosis is essential in patients with atrophic change on the portal vein. If these methods are used aptly, they can be considered as favorable methods for overcoming each situation.
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