Postoperative Outcomes in 415 Patients Following Liver Transplantation Using Extended Donor Criteria: A Study from a Single Center in Germany

Background: Because of the massive organ shortage worldwide, marginal organs are increasingly being considered. The aim of this study was to present a comprehensive analysis of donor-related factors clinically supposed to influence the outcome after liver transplantation. This study from a single center in Germany aimed to evaluate postop-erative outcomes in 415 patients following liver transplantation using extended donor criteria.Material/Methods: Extended donor criteria (EDC) were considered according to the official guidelines issued through the German Medical Association. Other factors and the Eurotransplant Donor Risk Index (ET-DRI) were also considered. Correlation studies, logistic regression, and Kaplan-Meier-estimator were used to evaluate the outcome.Results: The postoperative outcomes with or without EDC were comparable. Other factors had an impact on early al-lograft failure (EAD), including male donors (c2=14.135, P=0.0001). Other donor-unrelated factors, like cold isch-emia time, also had an impact on EAD (r=0.135, P=0.010), especially in patients with model for end-stage liver disease (MELD) <25 (b=0.001, P=0.008). ET-DRI was a crucial factor in estimating overall and allograft survival after liver transplantation.Conclusions: The findings from this study support the possibility of liver transplantation using organs obtained by EDC. Other factors, like donor sex and cold ischemic time, are not part of the EDC, although they have an impact on EAD. Organs obtained by EDC continue to be an option to address the organ shortage.