Compound Effect of Kidney Donor Profile Index and Cold Ischemic Time on 1-Year Kidney Transplant Recipient Outcomes.

Abstract:

OBJECTIVE:Kidney Donor Profile Index (KDPI) and cold ischemic time (CIT) independently influence recipient outcomes after kidney transplantation; however, the compound effect of these variables on posttransplant outcomes is unknown. DESIGN:The Scientific Registry of Transplant Recipients database of deceased-donor kidney transplant recipients between January 2012 and December 2016 was reviewed. Recipients were stratified based on their KDPI (0%-20%, 21%-85%, 86%-100%) and then based on CIT (0-12, 13-24, 25-30, 31-36, ≥ 37 hours). The primary outcome is 1-year allograft loss. Secondary outcomes include primary nonfunction, delayed graft function, biopsy-proven rejection, and 1-year recipient mortality. RESULTS:Allograft loss was not affected by CIT for KDPI 0% to 20% (P = .898) or KDPI 86% to 100% (P = .731), but was significantly different for KDPI 21% to 85% (P < .001). The KDPI 21% to 85% group was the only group with a significant difference in primary nonfunction, demonstrating a linear rise with increasing CIT (P < .001). CIT did not affect recipient mortality for any KDPI group (KDPI 0%-20%, P = .306; KDPI 21%-85%, P = .098; KDPI 86%-100%, P = .774). Incidence of delayed graft function was greater for each KDPI group (P < .001) with increased CIT. Biopsy-proven rejection was not affected by CIT for KDPI 21% to 85% (P = .244) or KDPI 86% to 100% (P = .946). For KDPI 0% to 20%, there was a significant difference (P = .024); however, the incidence was not linear with increasing CIT. For the KDPI 86% to 100% group, incidence of mortality, allograft loss, primary nonfunction, and biopsy-proven rejection did not differ between CIT groups. CONCLUSIONS:Extended CIT alone should not hinder utilization of higher KDPI organs.

journal_name

Transplant Proc

authors

Kutzler HL,Martin ST,O'Sullivan DM,Rochon C

doi

10.1016/j.transproceed.2019.08.040

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

3244-3251

issue

10

eissn

0041-1345

issn

1873-2623

pii

S0041-1345(19)30885-1

journal_volume

51

pub_type

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