Korean J Transplant.  2022 Nov;36(Supple 1):S6. 10.4285/ATW2022.F-0779.

Pretransplant mycophenolate mofetil reduces intrahepatic cholangiopathy related to laparoscopic donor hepatectomy in ABO-incompatible liver transplantation

Affiliations
  • 1Department of Surgery, Samsung Medical Center, Seoul, Korea

Abstract

Background
Intrahepatic cholangiopathy is a rare but life-threatening sequela of ABO-incompatible liver transplantation. This study analyzed the clinical impact of using pretransplant mycophenolate mofetil for reducing intrahepatic cholangiopathy in ABO-incompatible liver transplantation.
Methods
Patients who underwent living donor liver transplantation at Samsung Medical Center between 2010 and April, 2022 were included. Pretransplant mycophenolate mofetil was started since November, 2020. Comparison between ABO-compatible and ABO-incompatible transplantation was performed. Among ABO-incompatible transplantation, groups were divided into open donor surgery, laparoscopic donor surgery without pretransplant mycophenolate mofetil and laparoscopic donor surgery with pretransplant mycophenolate mofetil. Cox regression analyses on risk factors for intrahepatic cholangiopathy was performed.
Results
A total of 1,037 transplantations, 802 ABO-compatible and 234 ABO-incompatible transplantations were included. The intrahepatic cholangiopathy rate in ABO-incompatible transplantation with laparoscopic donor surgery (13/143, 9.1%) was sig-nificantly higher than that of ABO-compatible transplantation. (1/419, 0.2%; P<0.001) Multivariable analysis showed that lapa-roscopic donor surgery without pretransplant mycophenolate mofetil of recipients were at higher risk of intrahepatic cholangi-opathy (hazard ratio [HR], 13.449; confidence interval [CI], 1.710–05.800; P=0.014) compared to open donor surgery group, while laparoscopic donor surgery with pretransplant mycophenolate mofetil showed no increased risk. (HR, 5.307; CI, 0.315–89.366; P=0.247).
Conclusions
Laparoscopic donor surgery was a risk factor for intrahepatic cholangiopathy in ABO-incompatible liver trans-plantation and pretransplant mycophenolate mofetil can reduce the risk if intrahepatic cholangiopathy.

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