Longterm results of liver transplantation from donation after circulatory death

Joris J Blok1, Olivier Detry2, Hein Putter3

  • 1Department of Surgery, Division of Transplantation, Leiden University Medical Center, Leiden University, Leiden, the Netherlands.

Insights

Donation after circulatory death (DCD) liver transplantation (LT) shows decreased graft survival compared to donation after brain death (DBD) LT, particularly with warm ischemia time over 25 minutes. Patient survival remains similar between DCD and DBD liver transplants.

Area of Science:

  • Hepatology and Transplant Surgery
  • Organ Donation and Transplantation

Background:

  • Donation after circulatory death (DCD) liver transplantation (LT) carries potential risks for reduced graft survival due to complications like primary nonfunction and ischemic-type biliary lesions.
  • Previous reports suggest comparable survival rates between DCD and donation after brain death (DBD) LT, necessitating further long-term outcome analysis.

Purpose of the Study:

  • To evaluate the long-term outcomes of DCD LT within the Eurotransplant region.
  • To assess DCD LT outcomes, adjusted for the Eurotransplant donor risk index (ET-DRI).

Main Methods:

  • Retrospective analysis of adult DCD and DBD liver transplants performed in Belgium and the Netherlands between January 1, 2003, and December 31, 2007.
  • Graft failure defined as recipient death or retransplantation (death-uncensored graft survival).
  • Kaplan-Meier survival analysis and multivariate Cox regression, accounting for ET-DRI and recipient factors. Warm ischemia time (WIT) was analyzed.

Main Results:

  • Kaplan-Meier analysis revealed significantly lower graft survival for DCD LT at 5 years (54.4%) compared to DBD LT (65.6%) (P=0.02).
  • Multivariate Cox regression indicated a 1.7-fold increased hazard ratio for DCD LT (P < 0.001).
  • First warm ischemia time (WIT) exceeding 25 minutes was associated with lower graft survival in DCD transplants (P=0.002). Patient survival did not differ significantly between DCD and DBD LT (P=0.59).

Conclusions:

  • DCD LT is associated with an increased risk of diminished graft survival compared to DBD LT.
  • Patient survival rates are comparable between DCD and DBD liver transplantation.
  • DCD allografts with a first warm ischemia time (WIT) greater than 25 minutes face a higher risk of graft survival reduction.