Abstract
The functioning of non-heart-beating (NHB) donor kidneys upon transplantation is often delayed. To evaluate the effect of preservation by machine perfusion (MP) on early post-transplant function, 37 NHB donor kidneys were compared to 74 matched heart-beating (HB) donor kidneys preserved by cold storage (CS). The NHB donor kidneys were subject to 49 +/- 34 min of warm ischemia. Delayed function (DF) and primary nonfunction (PNF) rates were significantly higher for NHB than for HB donor kidneys (49% and 19% vs 34% and 7%, respectively). Consequently, renal function was impaired but recovered within 6 months. MP could not eliminate the differences in DF rate between NHB and HB donor kidneys. However, NHB donor kidneys preserved by MP showed less DF than that reported in kidneys preserved by CS. This suggests that MP has a beneficial effect on ischemically damaged kidneys. The similar results observed with category 2 and category 3 NHB donors also suggest this effect. The high PNF rate emphasizes the need for viability tests that prevent the transplantation of nonviable organs. We conclude that MP alone is not sufficient to reduce DF and PNF rates in NHB donor kidneys.
Published Version
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