Use of a double-J stent during ex vivo normothermic machine perfusion of human kidneys.

Ex vivo normothermic machine perfusion (NMP) was introduced into clinical practice recently (1) and there is ongoing interest in its utility in renal transplantation. In a pilot series, 1 hour of NMP after a period of static cold storage reduced delayed graft function when compared to static cold storage alone (2). This led to the establishment of the first multi-centre randomised clinical trial of NMP, which is ongoing (3).