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  • Title: Renoportal anastomosis as a rescue technique in postoperative portal thrombosis in liver transplantation.
    Author: González-Pinto IM, Miyar A, García-Bernardo C, Vázquez L, Barneo L, Cortés E, Díaz P, Gutiérrez N, Fernández L, Moreno M.
    Journal: Transplant Proc; 2009 Apr; 41(3):1057-9. PubMed ID: 19376426.
    Abstract:
    Renoportal anastomosis has been used as the primary portal revascularization technique in grade 4 portal thrombosis, but never after posttransplant portal thrombosis. A cirrhotic patient with hepatocellular carcinoma and partial portal thrombosis of two-thirds of the lumen was transplanted. The thrombus was removed and good portal flow obtained upon reperfusion (2.8 L/min). On the ninth postoperative day Doppler ultrasound revealed complete portal thrombosis extending from the splenomesenteric confluence. At emergency reoperation, we removed the newly formed thrombus. Portal vein branches were flushed with heparin and urokinase. After reconstruction of the anastomosis, we achieved a flow of 1.1 L/min. Rethrombosis occurred again on day 13. At reoperation, thrombus was removed again. However, this time portal flow was not recovered, due to hepatofugal flow associated with both the presence of collaterals and pancreatic edema. A left renoportal anastomosis was performed using an interposed iliac vein graft. A catheter was placed into the portal vein through a recanalization of the umbilical vein of the graft. After urokinase perfusion, portal inflow was 1.7 L/min. The postoperative course was satisfactory, with progressive normalization of liver tests and no further thrombosis. Persistent ascites improved with treatment. Angiography on day 41 showed good portal flow from the renal vein, with uniform distribution within the liver. A renoportal anastomosis can be useful for recovery of liver failure after posttransplant portal thrombosis, in the absence of portal flow.
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