Donor information based prediction of early allograft dysfunction and outcome in liver transplantation

Liver Int. 2015 Jan;35(1):156-63. doi: 10.1111/liv.12443. Epub 2014 Jan 24.

Abstract

Background & aims: Poor initial graft function was recently newly defined as early allograft dysfunction (EAD) [Olthoff KM, Kulik L, Samstein B, et al. Validation of a current definition of early allograft dysfunction in liver transplant recipients and analysis of risk factors. Liver Transpl 2010; 16: 943]. Aim of this analysis was to evaluate predictive donor information for development of EAD.

Methods: Six hundred and seventy-eight consecutive adult patients (mean age 51.6 years; 60.3% men) who received a primary liver transplantation (LT) (09/2003-12/2011) were included. Standard donor data were correlated with EAD and outcome by univariable/multivariable logistic regression and Cox proportional hazards to identify prognostic donor factors after adjustment for recipient confounders. Estimates of relevant factors were utilized for construction of a new continuous risk index to develop EAD.

Results: 38.7% patients developed EAD. 30-day survival of grafts with and without EAD was 59.8% and 89.7% (P < 0.0001). 30-day survival of patients with and without EAD was 68.5% and 93.1% (P < 0.0001) respectively. Donor body mass index (P = 0.0112), gGT (P = 0.0471), macrosteatosis (P = 0.0006) and cold ischaemia time (CIT) (P = 0.0031) were predictors of EAD. Internal cross validation showed a high predictive value (c-index = 0.622).

Conclusions: Early allograft dysfunction correlates with early results of LT and can be predicted by donor data only. The newly introduced risk index potentially optimizes individual decisions to accept/decline high risk organs. Outcome of these organs might be improved by shortening CIT.

Keywords: donor risk factors; early allograft dysfunction; liver transplantation; multivariable analysis; scoring system.

Publication types

  • Validation Study

MeSH terms

  • Adult
  • Age Factors
  • Allografts / physiopathology*
  • Bilirubin / blood
  • Body Mass Index
  • Female
  • Humans
  • Kaplan-Meier Estimate
  • Liver Transplantation / adverse effects*
  • Liver Transplantation / statistics & numerical data
  • Logistic Models
  • Male
  • Middle Aged
  • Organ Dysfunction Scores*
  • Predictive Value of Tests
  • Risk Factors
  • Sex Factors
  • Tissue Donors / statistics & numerical data*

Substances

  • Bilirubin