Capnometry levels as an indicator of renal graft evolution in uncontrolled non-heart beating donors

The capnometry values during resuscitation are an evolutive predictor of kidneys obtained from uncontrolled non-heart beating donors.

The study comprised a retrospective onset cohort of 37 non-heart beating donors and a validation cohort of 55 trasplanted kidneys in the period 2013-2017.

The population served by the emergency service and referred to Hospital Universitario Doce de Octubre (Madrid, Spain) as potential uncontrolled non-heart beating donors.

A total of 55 renal transplant patients subjected to hemodialysis and with grafts from uncontrolled non-heart beating donors.

Capnometry and capnography measurements in potential uncontrolled non-heart beating donors.

Capnometry values recorded initially and at transfer in hospital for comparison with the viability of the extracted kidneys; renal failure and delayed renal function.

A total of 55 out of 74 extracted kidneys were trasplanted (74.3%). The rest were ruled out due to poor perfusion or signs of ischemia. An association was observed (P=.016) between the capnometry values during resuscitation in the grafted kidneys (μ=22.8 mmHg) and in the kidneys discarded for transplantation (μ=17.35 mmHg).

Capnometry during resuscitation serves as a marker to be taken into account in relation to the viability of the trasplanted organs in uncontrolled non-heart beating donors.