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Endovascular closure of a hemiportocaval shunt after small‐for‐size adult‐to‐adult left lobe living donor liver transplantation

Adult‐to‐adult living donor liver transplantation is an accepted treatment option for patients with end‐stage liver disease. It is generally acknowledged that a graft weight to recipient body weight ratio > 0.8 is required in order to prevent the development of small‐for‐size syndrome. Size mismatch, however, is not the only factor responsible for the syndrome; instead, it results from a combination of factors, including the size, recipient status, and degree of portal hypertension. The ability to modulate the portal venous inflow has sparked renewed interest in the left lobe graft. We have used the hemiportocaval shunt, as described by Troisi et al. (Am J Transplant 2005;5:1397‐1404), in left lobe living donor liver transplants in order to prevent small‐for‐size syndrome while enhancing the safety of the donor operation. In this report, we describe a novel technique for occluding a hemiportocaval shunt in a patient who developed hepatic encephalopathy after receiving a small‐for‐size left lobe liver allograft from a living donor. Liver Transpl 15:1671–1675, 2009. © 2009 AASLD.