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Nationwide Outcomes after Renal Transplantation from Kidney-Only versus Multiple-Organ Deceased Donors

To assess renal transplant outcomes after donation by kidney-only (KO) versus multiple-organ (MO) donors on a national scale. The United Network for Organ Sharing database was examined for patients undergoing isolated kidney transplant from a deceased donor from 2000 through 2016. Comparison was made between recipients of grafts from KO versus MO donors at baseline and in a cohort of KO and MO recipients matched via propensity scoring. Outcomes of interest included delayed graft function (DGF), patient survival, and the cumulative incidence of graft loss. There were 33,326 recipients in the KO cohort versus 144,690 in the MO cohort. Donation after cardiac death donors were more prevalent in the KO group (43.8% vs 5.3%; P < 0.001). DGF occurred in 36.1 per cent of the KO versus 22.7 per cent of the MO recipients (P < 0.001). Five-year survival was 79.5 per cent versus 83.4 per cent (P < 0.001) in the KO versus MO group. After propensity matching, DGF was still more common in the KO group (33.1% vs 30.1%; P < 0.001). Patient survival was similar (79.5% KO vs 80.1% MO; P = 0.117). Cumulative incidence of graft loss was higher in the KO group (17.8% vs 16.8%). Survival outcomes from KO donors are actually quite good and should not be considered as inferior to MO donors.