期刊
AMERICAN JOURNAL OF TRANSPLANTATION
卷 18, 期 4, 页码 881-889出版社
WILEY
DOI: 10.1111/ajt.14526
关键词
clinical research; practice; donors and donation: donation after brain death (DBD); donors and donation: donation after circulatory death (DCD); graft survival; ischemia reperfusion injury (IRI); kidney transplantation; nephrology
资金
- Fonds Wetenschappelijk Onderzoek [11M9314N]
Circulatory death donor (DCD) kidney transplantations are steadily increasing. Consensus reports recommend limiting donor warm ischemia time (DWIT) in DCD donation, although an independent effect on graft outcome has not been demonstrated. We investigated death-censored graft survival in 18065 recipients of deceased-donor kidney transplants in the Eurotransplant region: 1059 DCD and 17006 brain-dead donor (DBD) kidney recipients. DWIT was defined as time from circulatory arrest until cold flush. DCD donation was an independent risk factor for graft failure (adjusted hazard ratio [HR] 1.28, 95% CI 1.10-1.46), due to an increased risk of primary nonfunction (62/1059 vs 560/17006; P<.0001). With DWIT in the model, DCD donation was no longer a risk factor, demonstrating that DWIT explains the inferior graft survival of DCD kidneys. Indeed, DCD transplants with short DWIT have graft survival comparable to that of standard-criteria DBD transplants (P=.59). DWIT also associated with graft failure in DCDs (adjusted HR 1.20 per 10-minute increase, 95% CI 1.03-1.42). At 5years after transplantation, graft failure occurred in 14 of 133 recipients (10.5%) with DWIT <10minutes, 139 of 555 recipients (25.0%) with DWIT between 10 and 19minutes, and 117 of 371 recipients (31.5%) with DWIT 20minutes. These findings support the expert opinion-based guidelines to limit DWIT. Asystolic donor warm ischemia time determines graft survival after circulatory-dead donor kidney transplantation.
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