Validation of the donor risk index in orthotopic liver transplantation within the Eurotransplant region

Authors


  • This study was partially presented at the American Transplant Congress (San Diego, CA, 2010) and at the Joint 6th European Liver and Intestine Transplant Association/European Liver Transplant Registry Annual Meeting and 5th International Meeting on Transplantation from Non-Heart Beating Donors (London, United Kingdom, 2010).

  • With respect to Organ Procurement and Transplantation Network data, this work was supported in part by the Health Resources and Services Administration (contract 234-2005-370011C). The contents of this article are the responsibility of the authors alone and do not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the US Government.

Abstract

In Eurotransplant, more than 50% of liver allografts come from extended criteria donors (ECDs). However, not every ECD is the same. The limits of their use are being explored. A continuous scoring system for analyzing donor risk has been developed within the Organ Procurement and Transplantation Network (OPTN), the Donor Risk Index (DRI). The objective of this study was the validation of this donor risk index (DRI) in Eurotransplant. The study was a database analysis of all 5939 liver transplants involving deceased donors and adult recipients from January 1, 2003 to December 31, 2007 in Eurotransplant. Data were analyzed with Kaplan-Meier and Cox regression models. Follow-up data were available for 5723 patients with a median follow up of 2.5 years. The mean DRI was remarkably higher in the Eurotransplant region versus OPTN (1.71 versus 1.45), and this indicated different donor populations. Nevertheless, we were able to validate the DRI for the Eurotransplant region. Kaplan-Meier curves per DRI category showed a significant correlation between the DRI and outcomes (P < 0.001). A multivariate analysis demonstrated that the DRI was the most significant factor influencing outcomes (P < 0.001). Among all donor, transplant, and recipient variables, the DRI was the strongest predictor of outcomes. Liver Transpl 18:113–120, 2012. © 2011 AASLD.

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