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  • The Role of Ex Situ Hypothe...
    Dondossola, Daniele; Ravaioli, Matteo; Lonati, Caterina; Maroni, Lorenzo; Pini, Alessia; Accardo, Caterina; Germinario, Giuliana; Antonelli, Barbara; Odaldi, Federica; Zanella, Alberto; Siniscalchi, Antonio; Cescon, Matteo; Rossi, Giorgio

    Liver transplantation, August 2021, 2021-08-00, 20210801, Letnik: 27, Številka: 8
    Journal Article

    Hypothermic oxygenated machine perfusion (HOPE) has the potential to counterbalance the detrimental consequences of cold and warm ischemia time (WIT) in both donation after brain death (DBD) and donation after circulatory death (DCD). Herein we investigated the protective effects of HOPE in extended criteria donor (ECD) DBD and overextended WIT DCD grafts. The present retrospective case series included 50 livers subjected to end‐ischemic HOPE or dual DHOPE in 2 liver transplantation (LT) centers from January 2018 to December 2019. All DCD donors were subjected to normothermic regional perfusion before organ procurement. Results are expressed as median (interquartile range IQR). In the study period, 21 grafts were derived from overextended WIT DCD donors (total WIT 54 IQR, 40‐60 minutes and 75% classified as futile), whereas 29 were from ECD DBD. A total of 3 biliary complications and 1 case of ischemia‐type biliary lesion were diagnosed. The rate of early allograft dysfunction (EAD) was 20%, and those patients had higher Comprehensive Complication Index scores. Through a changing point analysis, cold preservation time >9 hours was associated with prolonged hospital stays (P = 0.02), higher rates of EAD (P = 0.009), and worst post‐LT complications (P = 0.02). Logistic regression analyses indicated a significant relationship between cold preservation time and EAD. No differences were shown in terms of the early post‐LT results between LTs performed with DCD and DBD. Overall, our data are fully comparable with benchmark criteria in LT. In conclusion, the application of DHOPE obtained satisfactory and promising results using ECD‐DBD and overextended DCD grafts. Our findings indicate the need to reduce cold preservation time also in the setting of DHOPE, particularly for grafts showing poor quality.