Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients

Objectives Neutrophil-to-lymphocyte ratio (NLR) is a simple parameter implying the inflammatory status. We aimed to explore the association of brain-dead donor NLR change with delayed graft function (DGF) in kidney transplant recipients.Methods We retrospectively analyzed the data on 102 adult brain...

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Main Authors: Yongfang Zhang, Rumin Liu, Xiaolin Zhao, Zhiyu Ou, Shengnan Wang, Dongmei Wang, Kaibin Huang, Suyue Pan, Yongming Wu
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Renal Failure
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/0886022X.2022.2141646
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author Yongfang Zhang
Rumin Liu
Xiaolin Zhao
Zhiyu Ou
Shengnan Wang
Dongmei Wang
Kaibin Huang
Suyue Pan
Yongming Wu
author_facet Yongfang Zhang
Rumin Liu
Xiaolin Zhao
Zhiyu Ou
Shengnan Wang
Dongmei Wang
Kaibin Huang
Suyue Pan
Yongming Wu
author_sort Yongfang Zhang
collection DOAJ
description Objectives Neutrophil-to-lymphocyte ratio (NLR) is a simple parameter implying the inflammatory status. We aimed to explore the association of brain-dead donor NLR change with delayed graft function (DGF) in kidney transplant recipients.Methods We retrospectively analyzed the data on 102 adult brain-dead donors and their corresponding 199 kidney transplant recipients (2018 − 2021). We calculated ΔNLR by subtracting the NLR before evaluating brain death from the preoperative NLR. Increasing donor NLR was defined as ΔNLR > 0.Results Forty-four (22%) recipients developed DGF after transplantation. Increasing donor NLR was significantly associated with the development of DGF in recipients (OR 2.8, 95% CI 1.2 − 6.6; p = .018), and remained significant (OR 2.6, 95% CI 1.0 − 6.4; p = .040) after adjustment of confounders including BMI, hypertension, diabetes, and the occurrence of cardiac arrest. When acute kidney injury (AKI) was included in the multivariable analysis, increasing donor NLR lost its independent correlation with DGF, while AKI remained an independent risk factor of recipient DGF (OR 4.5, 95% CI 2.7 − 7.6; p < .001). The area under the curve of combined increasing NLR and AKI in donors (0.873) for predicting DGF was superior to increasing donor NLR (0.625, p = .015) and AKI alone (0.859, p < .001).Conclusions Dynamic changes of donor NLR are promising in predicting post-transplant DGF. It will assist clinicians in the early recognition and management of renal graft dysfunction. Validation of this new biomarker in a large study is needed.
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spelling doaj.art-1517837206594be39d787b64c53f48d12022-12-22T04:38:04ZengTaylor & Francis GroupRenal Failure0886-022X1525-60492022-12-014411897190310.1080/0886022X.2022.2141646Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipientsYongfang Zhang0Rumin Liu1Xiaolin Zhao2Zhiyu Ou3Shengnan Wang4Dongmei Wang5Kaibin Huang6Suyue Pan7Yongming Wu8Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Kidney Transplantation, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Kidney Transplantation, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaObjectives Neutrophil-to-lymphocyte ratio (NLR) is a simple parameter implying the inflammatory status. We aimed to explore the association of brain-dead donor NLR change with delayed graft function (DGF) in kidney transplant recipients.Methods We retrospectively analyzed the data on 102 adult brain-dead donors and their corresponding 199 kidney transplant recipients (2018 − 2021). We calculated ΔNLR by subtracting the NLR before evaluating brain death from the preoperative NLR. Increasing donor NLR was defined as ΔNLR > 0.Results Forty-four (22%) recipients developed DGF after transplantation. Increasing donor NLR was significantly associated with the development of DGF in recipients (OR 2.8, 95% CI 1.2 − 6.6; p = .018), and remained significant (OR 2.6, 95% CI 1.0 − 6.4; p = .040) after adjustment of confounders including BMI, hypertension, diabetes, and the occurrence of cardiac arrest. When acute kidney injury (AKI) was included in the multivariable analysis, increasing donor NLR lost its independent correlation with DGF, while AKI remained an independent risk factor of recipient DGF (OR 4.5, 95% CI 2.7 − 7.6; p < .001). The area under the curve of combined increasing NLR and AKI in donors (0.873) for predicting DGF was superior to increasing donor NLR (0.625, p = .015) and AKI alone (0.859, p < .001).Conclusions Dynamic changes of donor NLR are promising in predicting post-transplant DGF. It will assist clinicians in the early recognition and management of renal graft dysfunction. Validation of this new biomarker in a large study is needed.https://www.tandfonline.com/doi/10.1080/0886022X.2022.2141646Neutrophil-to-lymphocyte ratiobrain-dead donoracute kidney injurydelayed graft functionkidney transplantation
spellingShingle Yongfang Zhang
Rumin Liu
Xiaolin Zhao
Zhiyu Ou
Shengnan Wang
Dongmei Wang
Kaibin Huang
Suyue Pan
Yongming Wu
Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients
Renal Failure
Neutrophil-to-lymphocyte ratio
brain-dead donor
acute kidney injury
delayed graft function
kidney transplantation
title Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients
title_full Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients
title_fullStr Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients
title_full_unstemmed Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients
title_short Dynamic changes of neutrophil-to-lymphocyte ratio in brain-dead donors and delayed graft function in kidney transplant recipients
title_sort dynamic changes of neutrophil to lymphocyte ratio in brain dead donors and delayed graft function in kidney transplant recipients
topic Neutrophil-to-lymphocyte ratio
brain-dead donor
acute kidney injury
delayed graft function
kidney transplantation
url https://www.tandfonline.com/doi/10.1080/0886022X.2022.2141646
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