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Transportable normothermic kidney perfusion for 24 hours or longer could enable viability assessment of marginal grafts, increased organ use, and improved transplant logistics. Eleven clinically declined kidneys were perfused normothermically, with 6 being from donors after brain death (median cold ischemia time 33 ± 36.9 hours) and 5 being from donors after circulatory death (36.2 ± 38.3 hours). Three kidneys were perfused using Ringer's lactate to replace excreted urine volume, and 8 kidneys were perfused using urine recirculation to maintain perfusate volume without fluid replenishment. In all cases, normothermic perfusion either maintained or slightly improved the histopathologically assessed tubular condition, and there was effective urine production in kidneys from both donors after brain death and donors after circulatory death (2367 ± 1798 mL vs 744.4 ± 198.4 mL, respectively; P = .44). Biomarkers, neutrophil gelatinase-associated lipocalin, and kidney injury molecule-1 were successfully detected and quantified in the perfusate. All kidneys with urine recirculation were readily perfused for 24 hours (n = 8) and exhibited physiological perfusate sodium levels (140.7 ± 1.2 mmol/L), while kidneys without urine recirculation (n = 3) achieved a reduced normothermic perfusion time of 7.7 ± 1.5 hours and significantly higher perfusate sodium levels (159.6 ± 4.63 mmol/:, P 

Original publication

DOI

10.1111/ajt.14932

Type

Journal article

Journal

Am J Transplant

Publication Date

01/2019

Volume

19

Pages

178 - 192

Keywords

clinical research/practice, kidney (native) function/dysfunction, kidney transplantation/nephrology, organ perfusion and preservation, translational research/science, Aged, Biomarkers, Cold Ischemia, Female, Glucose, Hemodynamics, Humans, Kidney, Kidney Transplantation, Lactic Acid, Lipocalin-2, Male, Middle Aged, Organ Preservation, Perfusion, Urine