Outcomes with transplanting kidneys offered through expedited allocation.

Abstract

Expedited out-of-sequence deceased donor kidney allocation is a strategy to avoid discards after early placement attempts have been unsuccessful. Our study aimed to assess outcomes and characteristics of these transplanted kidneys. KDPI matching was performed between expedited allocation (EA) and standard allocation (SA) deceased donor kidney transplants performed at our center. Between 2018 and 2021, there were 225 EA offers, and 189 (84%) were transplanted. EA recipients were older (p=.007) and had shorter dialysis vintage (p<.0001). EA kidneys were likely to be nationally allocated (p<.001), have AKI (p<.0001) and longer CIT (p<.0001). There were no differences in EA and SA time-zero kidney biopsies (ci, p=.07; ct, p=.89; cv, p=.95; ah, p=.79). EA kidneys had more DGF (p=.0006), but there were no differences in DGF duration (p=.83), hospital length of stay (p=.43), 1- and 2-year eGFR (p=.16, p=.99), patient (p=.34), or death-censored graft (p=.66) survival. During this study period, our center transplanted 189 kidneys through EA following local-regional declines. These kidneys often came from AKI donors and had more DGF but had similar outcomes to KDPI-matched SA kidneys. Although it has been suggested that EA has the potential to worsen transplant disparities, transplant center level decisions on organ acceptance contribute to these variations.