Prolonged Organ Extraction Time Negatively Impacts Kidney Transplantation Outcome

TRANSPLANT INTERNATIONAL(2022)

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摘要
Main Problem: Following cold aortic flush in a deceased organ donation procedure, kidneys never reach the intended 0-4 degrees C and stay ischemic at around 20 degrees C in the donor's body until actual surgical retrieval. Therefore, organ extraction time could have a detrimental influence on kidney transplant outcome.Materials and Methods: We analyzed the association between extraction time and kidney transplant outcome in multicenter data of 5,426 transplant procedures from the Dutch Organ Transplantation Registry (NOTR) and 15,849 transplant procedures from the United Network for Organ Sharing (UNOS).Results: Extraction time was grouped per 10-min increment. In the NOTR database, extraction time was independently associated with graft loss [HR 1.027 (1.004-1.050); p = 0.022] and with DGF [OR 1.043 (1.021-1.066); p < 0.005]. An extraction time >80 min was associated with a 27.4% higher hazard rate of graft failure [HR 1.274 (1.080-1.502); p = 0.004] and such kidneys had 43.8% higher odds of developing DGF [OR 1.438, (1.236-1.673); p < 0.005]. In the UNOS database, increasing extraction times in DCD donors were associated with DGF [OR 1.036 (1.016-1.055); p < 0.005]. An extraction time >30 min was associated with 14.5% higher odds of developing DGF [OR 1.145 (1.063-1.233); p < 0.005].Discussion: Prolonged kidney extraction time negatively influenced graft survival in Dutch donors and increased DGF risk in all deceased donor recipients.
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关键词
extraction, time, nephrectomy, kidney, transplantation outcome
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