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  • Title: Intrahepatic anastomosis formation between the hepatic veins in the graft liver of the living related liver transplantation: observation by Doppler ultrasonography.
    Author: Kaneko T, Kaneko K, Sugimoto H, Inoue S, Hatsuno T, Sawada K, Ando H, Nakao A.
    Journal: Transplantation; 2000 Sep 27; 70(6):982-5. PubMed ID: 11014654.
    Abstract:
    In living related liver transplantation, the right lobe has come to be used as a graft to meet the metabolic demands of adult or adolescent recipients. In harvesting the right lobe as a graft, however, there is controversy as to whether or not the middle hepatic vein (MHV) should be included and reconstructed. Anatomical intrahepatic anastomosis between the right hepatic vein (RHV) and MHV is considered to exist, but the formation process of this functional anastomosis has not been demonstrated by Doppler ultrasonography (US). In our case, a right lobe including a right branch of the MHV was used as a graft. In implanting, the RHV was anastomosed to the inferior vena cava and the right branch of the MHV was ligated. Using Doppler US, we checked the blood flow in the hepatic vein after transplantation. Within 3 days of surgery, no flow was detected in the right branch of the MHV. A flow around the right branch of the MHV was observed at postoperative day 6. At postoperative day 9, a reverse flow was detected in which the right branch of the MHV drained into the RHV via the anastomosis between them. Based on our results, it appears that a functional intrahepatic anastomosis between hepatic veins formed gradually within 10 days of ligation of an afferent branch, during which time the graft function did not deteriorate.
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