Although the use of cadaveric split or living donor liver transplantation is a valid option for liver transplants, they have several complications, being The "small-for-size syndrome" one of the most frequent. This entity is mainly due to the incapacity that the graft has to meet The blood drainage demands. We report a 61 year-old patient with sub-acute liver failure, transplanted with a partial liver graft who developed hyperbilirubinemia, ascites and liver function deterioration. A meso-caval shunt was performed, after which the ascites resolved, serum bilirubin normalized and the synthetic function of the liver improved, After one month, a follow-up CT scan showed the absence of blood flow in The shunt, possible due to The reduction of the hyper-perfusion of the liver The clinical and biochemical condition of the patient continued improving despite the lack of flow through the shunt (Rev Med Chile 2009; 137: 918-22).