Immunometabolism of Machine Perfusion Strategies

There are not enough donated livers for everybody who needs one, and as a result, thousands of patients worldwide are waiting for liver transplants, with many dying while waiting for a life-saving organ. One reason for this shortage is that some usable livers from donors who are considered of high risk are being thrown away out of concern that they might not work well after transplantation due to a problem called ischaemia reperfusion injury (IRI). The discarded organs are mostly those coming from donors who have died due to cardiac arrest (called 'donation after circulatory death' or DCD), with only 27% of them being used in the UK. The quality of these DCD organs could be improved by changing how they are preserved after being removed from the donor. The most commonly used strategy is still to remove the livers and put them in an icebox ('static cold storage' or SCS). The alternative approaches, which are more complex and expensive, but that can also improve the quality of the DCD livers, involve using machines to pump fluids through the livers ('machine perfusion' or MP). There are three MP methods being used in patients: 1) normothermic regional perfusion (NRP), which involves pumping the donor's blood through the liver after the donor has died but the liver is still in the donor's body; 2) normothermic machine perfusion (NMP), in which the liver is pumped with blood outside of the donor's body; and 3) hypothermic machine perfusion (HOPE), which is also used outside of …

This description comes directly from the study's public registry record.

Alberto Sanchez-Fueyo  ·  02078485883  ·  sanchez_fueyo@kcl.ac.uk

Jurate Wall  ·  07961780517  ·  jurate.wall@kcl.ac.uk

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