Hepatic vein plasty for reconstructing graft outflow in Piggy-backy liver transplantation        WANG Meng-long, LU Shi-chun, CHI Ping, et al. Liver Transplantation Center, Beijing You'an Hospital, Capital University of Medical Sciences, Beijing 100069, China
Corresponding author：WANG Meng-long,E-mail: mlwangwangml2000@yahoo.com
Abstract　Objective　To investigate the effect of the hepatic vein plasty on the graft outflow in piggy-back liver transplantation. Methods    303  orthotopic liver transplants were performed between June 2004 and November 2008. Piggy-back technique with hepatic vein plasty was used in 84 cases. Results    Inferior caval vein  pressures were significantly increased less in piggy-back liver transplantation than those in conventional technique without venovenous bypass , but comparable to those with venovenous bypass during anhepatic phase. No hepatic venous outflow obstruction was encountered after piggy back liver transplantation with hepatic vein plasty, and no acute renal failure developed because of this technique. Conclusion    Hepatic vein plasty in piggy back liver transplantation is especially applicable to the patients with serious liver diseases requiring stable systemic hemodynamics, and with no worry about graft outflow obstruation.