Early graft dysfunction due to preservation/reperfusion injury still represents a notable issue after kidney transplantation, affecting long term prognosis of graft viability. One trigger of postischemic cell dysfunction could be recognized in the abrupt temperature shift from hypo- to normothermia, leading to mitochondrial dysfunction and proapoptotic signal transduction. Here we propose a technique to cope with this "rewarming injury" by interposing a period of gentle warming up by hypo- to subnormothermic machine perfusion of the isolated graft prior to warm reperfusion.
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