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Kim NY, Kim JE, Choi CH, Chung KH. Chronic kidney disease in postmenopausal women is associated with tooth loss. Menopause 2024; 31:663-668. [PMID: 38860929 DOI: 10.1097/gme.0000000000002375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
OBJECTIVE Menopause is characterized by changes in reproductive hormone levels that can negatively affect bone. Chronic kidney disease (CKD) and tooth loss are also important and common health issues after menopause. This study aimed to evaluate the association between CKD and tooth loss in postmenopausal women. METHODS The study evaluated 64,971 participants who participated in the Korean National Health and Nutrition Examination Survey (KNHANES) from 2010-2018, including postmenopausal women, aged 40 to 79 years. Participants were divided into two groups based on the number of teeth in their dentition (≥20 and <20). MAIN OUTCOME MEASURES The association between CKD and tooth loss was analyzed using multivariate logistic regression. Age, income, education, smoking, alcohol intake, body mass index, hypertension, diabetes, annual oral examination, toothbrushing, and the use of oral care products were considered. Subgroup analyses were further conducted according to age (40-65 yr and 66-79 yr). RESULTS After adjusting for covariates, CKD and estimated glomerular filtration rate were significantly associated with having ≥20 teeth (PT20; CKD: odds ratio [OR] 1.41, 95% confidence interval [CI] 1.04-1.90; estimated glomerular filtration rate (10 mL/min/1.73 m 2 ): OR 0.90, 95% CI 0.86-0.94). Importantly, the association between CKD and PT20 was significant in postmenopausal women, aged 66 to 79 years (OR 1.45, 95% CI 1.05-2.01). CONCLUSIONS In postmenopausal women, CKD and tooth loss may be associated. The association is significant in postmenopausal women, aged 66 to 79 years.
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Affiliation(s)
- Na-Yeong Kim
- From the Department of Preventive and Public Health Dentistry, Chonnam National University School of Dentistry, Gwangju, Republic of Korea
| | - Ji-Eun Kim
- From the Department of Preventive and Public Health Dentistry, Chonnam National University School of Dentistry, Gwangju, Republic of Korea
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Ofori EK, Nketiah-Dwomo I, Tagoe EA, Amponsah SK, Adams I, Nyarko ENY, Amanquah SD. Comparative Determination of Glomerular Filtration Rate Estimation Formulae in Type 2 Diabetic Patients: An Observational Study. BIOMED RESEARCH INTERNATIONAL 2024; 2024:9532236. [PMID: 38903148 PMCID: PMC11189678 DOI: 10.1155/2024/9532236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/02/2024] [Accepted: 05/02/2024] [Indexed: 06/22/2024]
Abstract
Assessing glomerular filtration rate (GFR) involves collecting timed urine samples for 24 hours, requiring significant time and resources in the clinical setting. Using predictive GFR formulae to assess renal function may be a better alternative. Our goal was to determine which predictive GFR formula had the highest level of concordance with the GFR that has been measured in a resource-poor setting. This is an observational study. We selected fifty (50) individuals diagnosed with type 2 diabetes (T2DM) in Kumasi, Ghana. The sociodemographic and clinical characteristics were obtained using a structured questionnaire. Urine was obtained from each subject over 24 hours. The levels of glucose (FBG) and creatinine in patients' blood, as well as the levels of creatinine in their urine, were measured after the patients had fasted overnight. Participants had a mean age of 57.4 ± 10.7 (years), BMI of 27.8 ± 4.1 (kg/m2), FBG of 9.0 ± 3.1 (mmol/L), and creatinine concentrations of 95.6 ± 29.1 (μmol/L). A Krouwer plot was used to compare the measured GFR with three formulae: Chronic Kidney Disease Epidemiology (CKD-EPI), Modification of Diet in Renal Disease (MDRD), and Cockroft-Gault (CG) for GFR prediction. Among the 3 estimates, CG showed nonsignificance (p > 0.05) with the measured GFR. The primary finding was that the GFR calculated using the CG formula was not different from the GFR measured, suggesting that CG is the most appropriate alternative GFR estimate among a cross-section of T2DM patients in Ghana.
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Affiliation(s)
| | | | | | | | - Ismaila Adams
- Department of Medical PharmacologyU.G.M.S.University of Ghana, Accra, Ghana
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3
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Luo WS, Qiang DR, Zhu WR, Kong XL, Xu WC. Haplotype analysis on association between C-reactive protein gene and susceptibility to type 2 diabetes mellitus in Chinese Han population : CRP gene and type 2 diabetes mellitus. Acta Diabetol 2024:10.1007/s00592-024-02309-x. [PMID: 38833006 DOI: 10.1007/s00592-024-02309-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/16/2024] [Indexed: 06/06/2024]
Abstract
AIMS We aimed to evaluate the impact of C-reactive protein (CRP) gene polymorphism, additional gene-gene interaction, and haplotypes on susceptibility to type 2 diabetes mellitus (T2DM). METHODS SNPstats online software ( https://www.snpstats.net/start.htm ) was employed to evaluate the association between CRP gene and T2DM risk. High-order interactions among SNPs was tested using generalized multifactor dimensionality reduction, and the testing balanced accuracy, training balanced accuracy and cross-validation consistency were calculated. The SHEsisPlus ( http://shesisplus.bio-x.cn/SHEsis.html ) online software was used for haplotype analysis. RESULTS A total of 730 T2DM patients and 765 controls were enrolled. The T allele of rs1205 is associated with increased susceptibility to T2DM, OR (95% CI) were 1.51 (1.13-2.01), 1.44 (1.10-1.89) and 1.25 (1.01-1.54) for codominant, dominant and over-dominant models, respectively. We also found that minor allele of rs2794521 is associated with decreased susceptibility to T2DM under codominant and recessive models, OR (95%CI) were 0.38 (0.18-0.79) and 0.37 (0.16-0.80) for codominant and recessive models, respectively. No significant gene-gene interaction existed among CRP gene SNPs, all interaction p- values were more than 0.05. Haplotype analyses suggested the CGCA haplotype containing rs1205-C, rs1130864-G, rs2794521- C and rs3093059- A allele was associated with decreased risk of T2DM, OR (95% CI) = 0.83 (0.68-0.98), P = 0.047. CONCLUSIONS Minor allele of rs1205 was associated with increased T2DM risk. Minor allele of rs2794521 and the CGCA haplotype were associated with decreased T2DM risk.
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Affiliation(s)
- Wen-Shu Luo
- Department of Chronic Non-Communicable Disease Control, Changzhou Center for Disease Control and Prevention, Changzhou Advanced Institute of Public Health, Nanjing Medical University, No. 203 Taishan Road, Xinbei District, Changzhou, 213022, Jiangsu, People's Republic of China
| | - De-Ren Qiang
- Department of Chronic Non-Communicable Disease Control, Changzhou Wujin District Disease Prevention and Control Center, Changzhou, 213164, Jiangsu, People's Republic of China
- Community Health Service Center of Xihu Street, Wujin District, Changzhou, 213149, Jiangsu, People's Republic of China
| | - Wen-Rong Zhu
- Community Health Service Center of Xihu Street, Wujin District, Changzhou, 213149, Jiangsu, People's Republic of China
| | - Xiao-Ling Kong
- Department of Chronic Non-Communicable Disease Control, Changzhou Wujin District Disease Prevention and Control Center, Changzhou, 213164, Jiangsu, People's Republic of China
| | - Wen-Chao Xu
- Department of Chronic Non-Communicable Disease Control, Changzhou Center for Disease Control and Prevention, Changzhou Advanced Institute of Public Health, Nanjing Medical University, No. 203 Taishan Road, Xinbei District, Changzhou, 213022, Jiangsu, People's Republic of China.
- The Affiliated Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu, People's Republic of China.
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Grosyeux C, Alla A, Barbé F, Dubourg LD, Chardon L, Guéant JL, Frimat L, Oussalah A, Vrillon I. The EKFC equation outperforms the CKD-EPI and CKiD equations for GFR estimation in adolescent and young adult kidney transplant patients. Nephrology (Carlton) 2024. [PMID: 38803085 DOI: 10.1111/nep.14328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/28/2024] [Accepted: 05/17/2024] [Indexed: 05/29/2024]
Abstract
AIM This study evaluated the bias and accuracy of the CKD-EPI/CKiD and EKFC equations compared with the reference exogenous tracer-based assessment of glomerular filtration rate (GFR) in adult and pediatric patients according to their renal transplant status. METHODS We assessed the bias and P30 accuracy of the CKD-EPI/CKiD and EKFC equations compared with iohexol-based GFR measurement. RESULTS In the overall population (n = 59), the median age was 29 years (IQR, 16.0-46.0) and the median measured GFR was 73.9 mL/min/1.73m2 (IQR, 57.3-84.6). Among non-kidney transplant patients, the median was 77.7 mL/min/1.73m2 (IQR, 59.3-86.5), while among kidney transplant patients, it was 60.5 mL/min/1.73m2 (IQR, 54.2-66.8). The bias associated with the EKFC and CKD-EPI/CKiD equations was significantly higher among kidney transplant patients than among non-kidney transplant patients, with a difference between medians (Hodges-Lehmann) of +10.4 mL/min/1.73m2 (95% CI, 2.2-18.9; p = .02) for the EKFC and +12.1 mL/min/1.73m2 (95% CI, 4.2-21.4; p = .006) for the CKD-EPI/CKiD equations. In multivariable analysis, kidney transplant status emerged as an independent factor associated with a bias of >3.4 mL/min/1.73m2 (odds ratio, 7.7; 95% CI, 1.4-43.3; p = .02) for the EKFC equation and a bias of >13.4 mL/min/1.73m2 (odds ratio, 15.0; 95% CI, 2.6-85.7; p = .002) for the CKD-EPI/CKiD equations. CONCLUSION In our study, which included adolescent and young adult kidney transplant patients, both the CKD-EPI/CKiD and EKFC equations tended to overestimate the measured glomerular filtration rate, with the EKFC equation exhibiting less bias. Renal transplant status significantly influenced the degree of estimation bias.
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Affiliation(s)
- Chloé Grosyeux
- Pediatric Nephrology Department, University Hospital of Nancy, Nancy, France
| | - Asma Alla
- Department of Nephrology, University of Lorraine, Nancy, France
| | - Françoise Barbé
- Department of Molecular Medicine, Division of Biochemistry, Molecular Biology, and Nutrition, University Hospital of Nancy, Nancy, France
- Reference Center for Inborn Errors of Metabolism (ORPHA67872), University Hospital of Nancy, Nancy, France
| | - Laurence Derain Dubourg
- Nephrology, Dialysis, Hypertension and Functional Renal Exploration, Edouard Herriot Hospital, Hospices Civils de Lyon and Université Lyon 1, Lyon, France
| | - Laurence Chardon
- Department of Biology and Hormonology, Lyon-Est Hospital, Bron, France
| | - Jean-Louis Guéant
- Department of Molecular Medicine, Division of Biochemistry, Molecular Biology, and Nutrition, University Hospital of Nancy, Nancy, France
- Reference Center for Inborn Errors of Metabolism (ORPHA67872), University Hospital of Nancy, Nancy, France
- INSERM UMR_S 1256, Nutrition, Genetics, and Environmental Risk Exposure (NGERE), Nancy, France
| | - Luc Frimat
- Department of Nephrology, University of Lorraine, Nancy, France
- INSERM CIC-EC CIE6, University of Lorraine, Nancy, France
| | - Abderrahim Oussalah
- Department of Molecular Medicine, Division of Biochemistry, Molecular Biology, and Nutrition, University Hospital of Nancy, Nancy, France
- Reference Center for Inborn Errors of Metabolism (ORPHA67872), University Hospital of Nancy, Nancy, France
- INSERM UMR_S 1256, Nutrition, Genetics, and Environmental Risk Exposure (NGERE), Nancy, France
| | - Isabelle Vrillon
- Pediatric Nephrology Department, University Hospital of Nancy, Nancy, France
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Silva BM, Macedo FH, Hayano EEM, Germano S, Ribeiro IF, Franco CA, Requião L, Medina-Pestana J, Goes MA. Relationship of hemoglobin levels with outcomes in deceased donor kidney transplant: a retrospective cohort study. J Bras Nefrol 2024; 46:e20230014. [PMID: 38284551 PMCID: PMC11210544 DOI: 10.1590/2175-8239-jbn-2023-0014en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 11/03/2023] [Indexed: 01/30/2024] Open
Abstract
INTRODUCTION Anemia is frequent in patients undergoing replacement therapy for kidney failure. Anemia in the pre- and post-transplantation period might be related to kidney transplant outcomes. The current study therefore sought to assess the relationship between anemia, delayed allograft function (DGF), chronic kidney allograft dysfunction (CAD), and death from any cause following kidney transplantation from a deceased donor. METHODS This was a retrospective study with 206 kidney transplant patients of deceased donors. We analyzed deceased donors' and kidney transplant patients' demographic data. Moreover, we compared biochemical parameters, anemia status, and medicines between DGF and non-DGF groups. Afterward, we performed a multivariate analysis. We also evaluated outcomes, such as CAD within one year and death in ten years. RESULTS We observed a lower frequency of pre-transplant hemoglobin concentration (Hb) but higher frequency of donor-serum creatinine and red blood transfusion within one week after transplantation in the group with DGF. In addition, there was an independent association between Hb concentration before transplantation and DGF [OR 0.252, 95%CI: 0.159-0.401; p < 0.001]. There was also an association between Hb concentration after six months of kidney transplantation and both CAD [OR 0.798, 95% CI: 0.687-0.926; p = 0.003] and death from any cause. CONCLUSION An association was found between pre-transplantation anemia and DGF and between anemia six months after transplantation and both CAD and death by any cause. Thus, anemia before or after transplantation affects the outcomes for patients who have undergone kidney transplantation from a deceased donor.
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Affiliation(s)
| | | | | | - Suzeli Germano
- Universidade Federal de São Paulo, Divisão de Nefrologia, São Paulo,
SP, Brazil
| | | | - Carolina Azze Franco
- Universidade Federal de São Paulo, Departamento de Medicina, São
Paulo, SP, Brazil
| | - Lucio Requião
- Universidade Federal de São Paulo, Divisão de Nefrologia, São Paulo,
SP, Brazil
- Universidade Federal de São Paulo, Hospital do Rim, São Paulo, SP,
Brazil
| | - José Medina-Pestana
- Universidade Federal de São Paulo, Divisão de Nefrologia, São Paulo,
SP, Brazil
- Universidade Federal de São Paulo, Hospital do Rim, São Paulo, SP,
Brazil
| | - Miguel Angelo Goes
- Universidade Federal de São Paulo, Divisão de Nefrologia, São Paulo,
SP, Brazil
- Universidade Federal de São Paulo, Hospital do Rim, São Paulo, SP,
Brazil
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Kosinski L, Frey E, Klein A, O'Doherty I, Romero K, Stegall M, Helanterä I, Gaber AO, Fitzsimmons WE, Aggarwal V. Longitudinal estimated glomerular filtration rate (eGFR) modeling in long-term renal function to inform clinical trial design in kidney transplantation. Clin Transl Sci 2023; 16:1680-1690. [PMID: 37350196 PMCID: PMC10499426 DOI: 10.1111/cts.13579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/10/2023] [Indexed: 06/24/2023] Open
Abstract
Kidney transplantation is the preferred treatment for individuals with end-stage kidney disease. From a modeling perspective, our understanding of kidney function trajectories after transplantation remains limited. Current modeling of kidney function post-transplantation is focused on linear slopes or percent decline and often excludes the highly variable early timepoints post-transplantation, where kidney function recovers and then stabilizes. Using estimated glomerular filtration rate (eGFR), a well-known biomarker of kidney function, from an aggregated dataset of 4904 kidney transplant patients including both observational studies and clinical trials, we developed a longitudinal model of kidney function trajectories from time of transplant to 6 years post-transplant. Our model is a nonlinear, mixed-effects model built in NONMEM that captured both the recovery phase after kidney transplantation, where the graft recovers function, and the long-term phase of stabilization and slow decline. Model fit was assessed using diagnostic plots and individual fits. Model performance, assessed via visual predictive checks, suggests accurate model predictions of eGFR at the median and lower 95% quantiles of eGFR, ranges which are of critical clinical importance for assessing loss of kidney function. Various clinically relevant covariates were also explored and found to improve the model. For example, transplant recipients of deceased donors recover function more slowly after transplantation and calcineurin inhibitor use promotes faster long-term decay. Our work provides a generalizable, nonlinear model of kidney allograft function that will be useful for estimating eGFR up to 6 years post-transplant in various clinically relevant populations.
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Affiliation(s)
| | - Eric Frey
- Critical Path InstituteTucsonArizonaUSA
| | | | | | | | - Mark Stegall
- Department of SurgeryMayo ClinicRochesterMinnesotaUSA
| | - Ilkka Helanterä
- Department of Transplantation and Liver SurgeryHelsinki University HospitalHelsinkiFinland
| | - Ahmed Osama Gaber
- Department of Surgery, Houston Methodist HospitalHoustonTexasUSA
- Weill Cornell MedicineNew YorkNew YorkUSA
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7
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Molinari P, Regalia A, Leoni A, Campise M, Cresseri D, Cicero E, Vettoretti S, Nardelli L, Brigati E, Favi E, Messa P, Castellano G, Alfieri CM. Impact of hyperparathyroidism and its different subtypes on long term graft outcome: a single Transplant Center cohort study. Front Med (Lausanne) 2023; 10:1221086. [PMID: 37636567 PMCID: PMC10449540 DOI: 10.3389/fmed.2023.1221086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/20/2023] [Indexed: 08/29/2023] Open
Abstract
Purpose We studied the association between parathormone (PTH) levels and long-term graft loss in RTx patients (RTx-p). Methods We retrospectively evaluated 871 RTx-p, transplanted in our unit from Jan-2004 to Dec-2020 assessing renal function and mineral metabolism parameters at 1, 6, and 12 months after RTx. Graft loss and death with functioning graft during follow-up (FU, 8.3[5.4-11.4] years) were checked. Results At month-1, 79% had HPT, of which 63% with secondary HPT (SHPT) and 16% tertiary HPT (THPT); at month-6, HPT prevalence was 80% of which SHPT 64% and THPT 16%; at month-12 HPT prevalence was 77% of which SHPT 62% and THPT 15%. A strong significant correlation was found between HPT type, PTH levels and graft loss at every time point. Mean PTH exposure remained strongly and independently associated to long term graft loss (OR 3.1 [1.4-7.1], p = 0.008). THPT was independently associated with graft loss at month-1 when compared to HPT absence and at every time point when compared to SHPT. No correlation was found with RTx-p death. Discriminatory analyses identified the best mean PTH cut-off to predict long-term graft loss to be between 88.6 and 89.9 pg/mL (AUC = 0.658). Cox regression analyses highlighted that THPT was strongly associated with shorter long-term graft survival at every time-point considered. Conclusion High PTH levels during 1st year of RTx seem to be associated with long term graft loss.
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Affiliation(s)
- Paolo Molinari
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Post-Graduate School of Specialization in Nephrology, University of Milano, Milan, Italy
| | - Anna Regalia
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Alessandro Leoni
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Mariarosaria Campise
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Donata Cresseri
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Elisa Cicero
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Post-Graduate School of Specialization in Nephrology, University of Milano, Milan, Italy
| | - Simone Vettoretti
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Luca Nardelli
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Emilietta Brigati
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Evaldo Favi
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
- General Surgery and Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Piergiorgio Messa
- Department of Nephrology, Dialysis and Kidney Transplants, IRCCS Ca’ Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
| | - Giuseppe Castellano
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Carlo M. Alfieri
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
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Masson G, Viva T, Huart J, Weekers L, Bonvoisin C, Bouquegneau A, Maweja S, Hamoir E, Seidel L, Pottel H, Lancellotti P, Jouret F. The Effect of Elective Ligation of the Arteriovenous Fistula on Cardiac and Renal Functions in Kidney Transplant Recipients. KIDNEY360 2023; 4:1130-1138. [PMID: 37357344 PMCID: PMC10476678 DOI: 10.34067/kid.0000000000000198] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/11/2023] [Indexed: 06/27/2023]
Abstract
Key Points Surgical AVF ligation in KTRs is associated with a significant increase in diastolic BP while systolic BP remains stable. AVF closure in KTRs leads to an improvement of LV and LA morphology and a decrease in serum NT-proBNP levels. There is no significant effect of AVF ligation on kidney allograft function: The eGFR remains stable over time. Background Kidney transplantation is considered as the best kidney replacement therapy, and arteriovenous fistula (AVF) is the preferred vascular access for hemodialysis. The systematic ligation of a functioning AVF in stable kidney transplant recipients (KTRs) remains debatable. Methods In this prospective study, we investigated the hemodynamic effect of the surgical closure of AVF in KTRs. Forty-three KTRs underwent an ambulatory BP monitoring before surgical closure of AVF (T0) and 12 months later (M12), as well as measurement of serum cardiac biomarkers (i.e. , soluble suppression of tumorigenicity 2, N-terminal pro b-type natriuretic peptide [NT-proBNP], and galectin-3). Serum tests were also performed 6 months after AVF closure (M6). An echocardiographic examination was performed at each time point. All serum creatinine values were collected to compare the individual eGFR slopes before versus after AVF closure. The latest measure of the AVF flow before kidney transplantation was recorded. Results Diastolic BP significantly rose from T0 to M12: +4.4±7.3 mm Hg (P = 0.0003) for 24h, +3.8±7.4 mm Hg (P = 0.0018) during the day, and +6.3±9.9 mm Hg (P = 0.0002) during the night, leading to an increased proportion of KTRs with European Society of Hypertension (ESH)-defined arterial hypertension after AVF ligation. No change was observed for systolic BP. NT-proBNP significantly dropped between T0 and M6 (345 [190; 553] to 230 [118; 458] pg/ml, P = 0.0001) and then remained stable from M6 to M12 while suppression of tumorigenicity 2 and galectin-3 levels did not change from T0 to M12. We observed a significant decrease in left ventricular (LV) end-diastolic volume, LV end-systolic volume, LV mass, interventricular septum diameter, left atrial volume, and tricuspid annular plane systolic excursion from T0 to M6 and then a stability from M6 to M12. LV ejection fraction and eGFR slope remained stable during the whole study. These observations remained unchanged after adjustment for AVF flow. Conclusion The closure of a patent AVF in KTRs is associated with elevation of diastolic BP, drop in serum NT-proBNP levels, reduction of left ventricular and atrial dimensions, and stability of eGFR slope.
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Affiliation(s)
- Grégoire Masson
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Tommaso Viva
- Division of Cardiology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Justine Huart
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
- Unit of Cardiovascular Sciences, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
| | - Laurent Weekers
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Catherine Bonvoisin
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Antoine Bouquegneau
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
- Unit of Cardiovascular Sciences, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
| | - Sylvie Maweja
- Division of Abdominal Surgery and Transplantation, Department of Surgery, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Etienne Hamoir
- Division of Abdominal Surgery and Transplantation, Department of Surgery, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Laurence Seidel
- Department of Biostatistics, University of Liège Hospital (ULiège CHU), Liège, Belgium
| | - Hans Pottel
- KU Leuven Kulak, Department of Public Health and Primary Care, University of Leuven, Kortrijk, Belgium
| | - Patrizio Lancellotti
- Unit of Cardiovascular Sciences, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
| | - François Jouret
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULiège CHU), Liège, Belgium
- Unit of Cardiovascular Sciences, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
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Raynaud M, Al-Awadhi S, Juric I, Divard G, Lombardi Y, Basic-Jukic N, Aubert O, Dubourg L, Masson I, Mariat C, Prié D, Pernin V, Le Quintrec M, Larson TS, Stegall MD, Bikbov B, Ruggenenti P, Mesnard L, Ibrahim HN, Nielsen MB, Matas AJ, Nankivell BJ, Benjamens S, Pol RA, Bakker SJL, Jouven X, Legendre C, Kamar N, Smith BH, Wadei HM, Durrbach A, Vincenti F, Remuzzi G, Lefaucheur C, Bentall AJ, Loupy A. Race-free estimated glomerular filtration rate equation in kidney transplant recipients: development and validation study. BMJ 2023; 381:e073654. [PMID: 37257905 PMCID: PMC10231444 DOI: 10.1136/bmj-2022-073654] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/17/2023] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To compare the performance of a newly developed race-free kidney recipient specific glomerular filtration rate (GFR) equation with the three current main equations for measuring GFR in kidney transplant recipients. DESIGN Development and validation study SETTING: 17 cohorts in Europe, the United States, and Australia (14 transplant centres, three clinical trials). PARTICIPANTS 15 489 adults (3622 in development cohort (Necker, Saint Louis, and Toulouse hospitals, France), 11 867 in multiple external validation cohorts) who received kidney transplants between 1 January 2000 and 1 January 2021. MAIN OUTCOME MEASURE The main outcome measure was GFR, measured according to local practice. Performance of the GFR equations was assessed using P30 (proportion of estimated GFR (eGFR) within 30% of measured GFR (mGFR)) and correct classification (agreement between eGFR and mGFR according to GFR stages). The race-free equation, based on creatinine level, age, and sex, was developed using additive and multiplicative linear regressions, and its performance was compared with the three current main GFR equations: Modification of Diet in Renal Disease (MDRD) equation, Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) 2009 equation, and race-free CKD-EPI 2021 equation. RESULTS The study included 15 489 participants, with 50 464 mGFR and eGFR values. The mean GFR was 53.18 mL/min/1.73m2 (SD 17.23) in the development cohort and 55.90 mL/min/1.73m2 (19.69) in the external validation cohorts. Among the current GFR equations, the race-free CKD-EPI 2021 equation showed the lowest performance compared with the MDRD and CKD-EPI 2009 equations. When race was included in the kidney recipient specific GFR equation, performance did not increase. The race-free kidney recipient specific GFR equation showed significantly improved performance compared with the race-free CKD-EPI 2021 equation and performed well in the external validation cohorts (P30 ranging from 73.0% to 91.3%). The race-free kidney recipient specific GFR equation performed well in several subpopulations of kidney transplant recipients stratified by race (P30 73.0-91.3%), sex (72.7-91.4%), age (70.3-92.0%), body mass index (64.5-100%), donor type (58.5-92.9%), donor age (68.3-94.3%), treatment (78.5-85.2%), creatinine level (72.8-91.3%), GFR measurement method (73.0-91.3%), and timing of GFR measurement post-transplant (72.9-95.5%). An online application was developed that estimates GFR based on recipient's creatinine level, age, and sex (https://transplant-prediction-system.shinyapps.io/eGFR_equation_KTX/). CONCLUSION A new race-free kidney recipient specific GFR equation was developed and validated using multiple, large, international cohorts of kidney transplant recipients. The equation showed high accuracy and outperformed the race-free CKD-EPI 2021 equation that was developed in individuals with native kidneys. TRIAL REGISTRATION ClinicalTrials.gov NCT05229939.
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Affiliation(s)
- Marc Raynaud
- Université de Paris Cité, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, F-75015 Paris, France
| | - Solaf Al-Awadhi
- Université de Paris Cité, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, F-75015 Paris, France
| | - Ivana Juric
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Gillian Divard
- Université de Paris Cité, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, F-75015 Paris, France
| | - Yannis Lombardi
- Department of Nephrology and Acute Kidney Intensive Care, Tenon Hospital, Paris, France
| | - Nikolina Basic-Jukic
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Olivier Aubert
- Université de Paris Cité, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, F-75015 Paris, France
- Department of Nephrology and Kidney Transplantation, Necker Hospital, Paris, France
| | - Laurence Dubourg
- Centre de Référence des Maladies Rénales Rares, Service de Néphrologie et Rhumatologie Pédiatriques, Hospices Civils de Lyon, Lyon, France
| | - Ingrid Masson
- Department of Nephrology, Dialysis and Renal Transplantation, Nord Hospital, Jean Monnet University, Saint-Etienne, France
| | - Christophe Mariat
- Department of Nephrology, Dialysis and Renal Transplantation, Nord Hospital, Jean Monnet University, Saint-Etienne, France
| | - Dominique Prié
- Department of Nephrology and Kidney Transplantation, Necker Hospital, Paris, France
| | - Vincent Pernin
- Department of Nephrology, University Hospital Centre, Montpellier, France
| | - Moglie Le Quintrec
- Department of Nephrology, University Hospital Centre, Montpellier, France
| | - Timothy S Larson
- William J von Liebig Centre for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark D Stegall
- William J von Liebig Centre for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA
| | - Boris Bikbov
- Department of Health Policy, Instituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Piero Ruggenenti
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases "Aldo e Cele Daccò": Instituto di Ricerche Farmacologiche Mario Negri IRCCS, Ranica, Bergamo, Italy
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Laurent Mesnard
- Department of Nephrology and Acute Kidney Intensive Care, Tenon Hospital, Paris, France
| | - Hassan N Ibrahim
- University of Texas Health Sciences Centre at Houston, Texas, USA
| | | | - Arthur J Matas
- Division of Transplantation, Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Stan Benjamens
- Department of Surgery, University of Groningen and University Medical Centre Groningen, Groningen, Netherlands
| | - Robert A Pol
- Department of Surgery, University of Groningen and University Medical Centre Groningen, Groningen, Netherlands
| | - Stephan J L Bakker
- Division of Nephrology, Department of Internal Medicine, University of Groningen and University Medical Centre Groningen, Groningen, Netherlands
| | - Xavier Jouven
- Université de Paris Cité, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, F-75015 Paris, France
| | - Christophe Legendre
- Department of Nephrology and Kidney Transplantation, Necker Hospital, Paris, France
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, Paul Sabatier University, INSERM, Toulouse, France
| | - Byron H Smith
- Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, Florida, USA
| | - Hani M Wadei
- Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, Florida, USA
| | - Antoine Durrbach
- Department of Nephrology and Renal Transplantation, Henri-Mondor Hospital, Paris-Saclay University, Creteil, France
| | - Flavio Vincenti
- Department of Surgery, Kidney Transplant Service, University of California San Francisco, San Francisco, California, USA
| | - Giuseppe Remuzzi
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases "Aldo e Cele Daccò": Instituto di Ricerche Farmacologiche Mario Negri IRCCS, Ranica, Bergamo, Italy
| | - Carmen Lefaucheur
- Department of Kidney Transplantation, Saint Louis University Hospital, Paris, France
| | - Andrew J Bentall
- William J von Liebig Centre for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA
| | - Alexandre Loupy
- Université de Paris Cité, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, F-75015 Paris, France
- Department of Nephrology and Kidney Transplantation, Necker Hospital, Paris, France
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10
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Burkhalter F, Holzmann Y, Georgalis A, Wehmeier C, Hirt-Minkowski P, Hoenger G, Hopfer H, Guerke L, Steiger J, Schaub S, Amico P. Excellent Clinical Long-Term Outcomes of Kidney Transplantation From Small Pediatric Donors (Age ≤ 5 Years) Despite Early Hyperfiltration Injury. Can J Kidney Health Dis 2023; 10:20543581231160004. [PMID: 37009424 PMCID: PMC10052475 DOI: 10.1177/20543581231160004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 01/13/2023] [Indexed: 03/30/2023] Open
Abstract
Background: The use of small pediatric donors (age ≤ 5 years and body weight < 20kg) for adult transplant recipients is still regarded controversially in terms of early complications, long-term outcomes, and development of hyperfiltration injury due to body size mismatch. Objective: To investigate long-term outcomes of adult renal allograft recipients receiving a kidney from small pediatric donor (SPD) in terms of kidney function and early features of hyperfiltration injury such as histological changes and proteinuria. Design: Retrospective, single center study. Settings: Transplant center of the University Hospital of Basel, Switzerland. Patients: Adult renal allograft recipients receiving a kidney from a small pediatric donor at our center between 2005 and 2017. Methods: The outcome of 47 transplants from SPD were compared with 153 kidney transplants from deceased-standard criteria donors (SCD) occurring during the same time period. Incidence of clinical signs of hyperfiltration injury (eg, proteinuria) was investigated. According to our policy, surveillance biopsies were taken at 3 and 6 months post-transplant and were evaluated in terms of signs of hyperfiltration injury. Results: At a median follow-up of 2.3 years post-transplant, death-censored graft survival of SPD was comparable to transplants from SCD (94% vs 93%; P = .54). Furthermore, allograft function at last follow-up (estimated glomerular filtration rate–Modification of Diet in Renal Disease) was significantly higher in pediatric transplant (80 vs 55 ml/min/1.73 m2, P = .002). We found histological signs of early hyperfiltration injury in 55% of SPD. There was an equally low proteinuria in both groups during follow-up. Limitations: It is a single center and retrospective observational study with small sample size. The outcomes were investigated in a well-selected population of recipients with low body mass index, low immunological risk, and well-controlled hypertension and was not compared with equal selected group of recipients. Conclusions: Early histological and clinical signs of hyperfiltration injury in SPD is frequent. Despite the hyperfiltration injury, there is an equal allograft survival and even superior allograft function in SPD compared with SCD during follow-up. This observation supports the concept of high adaptive capacity of pediatric donor kidneys.
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Affiliation(s)
- Felix Burkhalter
- Division of Nephrology, University Clinic of Medicine, Kantonsspital Baselland, Liestal, Switzerland
- Felix Burkhalter, Division of Nephrology, University Clinic of Medicine, Kantonsspital Baselland, Rheinstrasse 26, Liestal 4410, Switzerland.
| | - Yvonne Holzmann
- Division of Nephrology, University Clinic of Medicine, Kantonsspital Baselland, Liestal, Switzerland
| | - Argyrios Georgalis
- Transplantation Immunology & Nephrology, University Hospital Basel, Basel, Switzerland
| | - Caroline Wehmeier
- Transplantation Immunology & Nephrology, University Hospital Basel, Basel, Switzerland
| | | | - Gideon Hoenger
- Transplantation Immunology & Nephrology, University Hospital Basel, Basel, Switzerland
| | - Helmut Hopfer
- Institute for Pathology, University Hospital Basel, Basel, Switzerland
| | - Lorenz Guerke
- Department of Vascular and Transplant Surgery, University Hospital Basel, Basel, Switzerland
| | - Juerg Steiger
- Transplantation Immunology & Nephrology, University Hospital Basel, Basel, Switzerland
| | - Stefan Schaub
- Transplantation Immunology & Nephrology, University Hospital Basel, Basel, Switzerland
| | - Patrizia Amico
- Transplantation Immunology & Nephrology, University Hospital Basel, Basel, Switzerland
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11
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The New 2021 CKD-EPI Equation Without Race in a European Cohort of Renal Transplanted Patients. Transplantation 2022; 106:2443-2447. [PMID: 35915546 DOI: 10.1097/tp.0000000000004234] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Whether the new chronic kidney disease-epidemiology (CKD-EPI) equation without the race variable remains accurate enough for glomerular filtration rate (GFR) estimation in non-US kidney transplant recipients (KTRs) is unclear. We sought to compare the predictive performance between this equation and the classical CKD-EPI equation in a French cohort of KTRs. We also evaluated the performance of the European Kidney Function Consortium (EKFC) equation, an estimate that has proved very accurate in nontransplant patients and that does not include race variable. METHODS We retrospectively selected 489 KTRs for whom GFR was measured by inulin clearance. Performances of GFR equations were compared according to median bias, imprecision, and accuracy within 30% (P30) and 20% (P20). Differences in P20/P30 were tested using the exact McNemar test. RESULTS Although the 4 equations exhibited a similar level of imprecision, the bias of the new CKD-EPI equation was +5.5 (4.0; 6.6) mL/min/1.73 m², much higher than the bias of the classical CKD-EPI, EKFC, and Modified Diet in Renal Diseases (MDRD) equation (2.4 [1.7;3.5], 2.2 [1.1;3.1], and -0.5 [-1.5; 1.0] mL/min/1.73 m², respectively). The new CKD-EPI equation was significantly less accurate with a P30 of 68.3% as compared with 74.2%, 75.3%, and 77.1% for the classical CKD-EPI, EKFC, and MDRD equation, respectively. The EKFC equation outperformed both versions of the CKD-EPI equation in terms of P20. CONCLUSIONS The new CKD-EPI equation is suboptimal for the care and follow-up of European transplanted patients. The EKFC equation shows at least a similar performance to the MDRD and the classical CKD-EPI equation. Further validation of the EKFC equation in KTRs from a diverse ethnic background is needed.
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12
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Lin YW, Huang JL, Wei XB, Jiang M, Ran P, Li J, Qiu J, Zhong Q, Zhou YL, Chen JY, Yu DQ. Estimated glomerular filtration rate derived from different formulas and prognosis in acute coronary syndrome: Findings from the improving care for cardiovascular disease in China-acute coronary syndrome project. Am J Med Sci 2022; 364:565-574. [PMID: 35660542 DOI: 10.1016/j.amjms.2021.10.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 06/02/2021] [Accepted: 10/21/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND The optimal formula for the estimation of glomerular filtration rate (GFR) in patients with acute coronary syndrome (ACS) in terms of predicting in-hospital mortality and adverse events remains unclear. METHODS A nationwide registry study, Improving CCC (Care for Cardiovascular Disease in China) ACS project, was launched in 2014 as a collaborative study of the American Heart Association and Chinese Society of Cardiology. The Cockcroft-Gault, modification of diet in renal disease (MDRD) formula for Chinese (C-MDRD), Mayo, and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formulas were used to calculate estimated GFR in 61,545 ACS patients (38,734 with ST-segment elevation myocardial infarction [STEMI] and 22,811 with non-ST-segment-elevation ACS [NSTE-ACS]). RESULTS Prevalence of moderate to severe renal dysfunction was inconsistent among four formulas, ranging from 11.6% to 22.4% in NSTE-ACS and from 8.3% to 16.8% in STEMI, respectively. The in-hospital mortality rate in patients with ACS was inversely associated with estimated GFR. In STEMI, the Mayo-derived eGFR exhibited the highest predictive power for in-hospital death compared with the Cockcroft-Gault-derived eGFR (area under the curve [AUC]: 0.782 vs. 0.768, p=0.004), C-MDRD-derived eGFR (AUC: 0.782 vs. 0.740, p<0.001) and CKD-EPI-derived eGFR (AUC: 0.782 vs. 0.767, p<0.001). In NSTE-ACS, the Mayo-derived eGFR exhibited a similar predictive value with the Cockcroft-Gault (AUC: 0.781 vs. 0.787, p>0.05) and CKD-EPI-derived eGFR (AUC: 0.781 vs. 0.784, p>0.05). CONCLUSIONS The Mayo formula was superior to Cockcroft-Gault, C-MDRD, and CKD-EPI formulas for predicting in-hospital mortality in ACS patients, especially for STEMI. The Mayo-derived eGFR may serve as a risk-stratification tool for in-hospital adverse events in ACS patients. CLINICAL TRIAL REGISTRATION URL: http://www. CLINICALTRIALS gov. Unique identifier: NCT02306616.
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Affiliation(s)
- Ying-Wen Lin
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China; Shantou University Medical College, Shantou 515000, China
| | - Jie-Leng Huang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China; Southern Medical University, Guangzhou 510515, China
| | - Xue-Biao Wei
- Southern Medical University, Guangzhou 510515, China; Department of Critical Care Medicine, Guangdong Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Mei Jiang
- Southern Medical University, Guangzhou 510515, China; Department of Critical Care Medicine, Guangdong Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Peng Ran
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Jie Li
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Jia Qiu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Qi Zhong
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Ying-Ling Zhou
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Ji-Yan Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China.
| | - Dan-Qing Yu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China.
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13
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Letavernier E, Flamant M, Marsault C, Haymann JP, Müller G, Villa L, Cloutier J, Traxer O, Daudon M. Lateralization of uric acid stones on the left side. CR CHIM 2022. [DOI: 10.5802/crchim.91] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Trans JG, Krogstrup NV, Oltean M, Jespersen B, Nielsen MB, Birn H. A comparison of four established GFR formulas to estimate measured GFR and changes in GFR in adult kidney transplant recipients. Scand J Clin Lab Invest 2022; 82:296-303. [PMID: 35697079 DOI: 10.1080/00365513.2022.2084697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The accurate assessment of glomerular filtration rate (GFR) is important in the follow-up of kidney transplant recipients in order to identify graft dysfunction. A number of formulas have been proposed to calculate GFR from endogenous plasma markers such as creatinine or cystatin C since measuring GFR using exogenous markers is troublesome. This study compares and evaluates the ability of four different GFR formulas to estimate kidney graft function and to detect changes in GFR in kidney transplant recipients. The study included patients from the prospective, multicenter CONTEXT trial in kidney transplant recipients. GFR was measured using plasma clearance of 51Cr-EDTA and estimated using the MDRD, CKD-EPI Creatinine, CKD-EPI Cystatin C and CKD-EPI Cystatin C + Creatinine equations at three (n = 83) and twelve (n = 65) months post-transplantation. For each formula mean bias, precision, and accuracy were evaluated. The MDRD equation had the lowest mean bias (0.2 ml/min/1.73 m2), whereas the CKD-EPI Cystatin C + Creatinine equation had the highest precision (8 ml/min/1.73 m2). Accuracy at three months were similar for all equations (P30 > 80%) except for the CKD-EPI Cystatin C equation, which performed poorer (P30 = 55%). None of the formulas evaluated avoided misclassification of changes in GFR. The most optimal combination of precision and accuracy suggests the use of CKD-EPI Creatinine + Cystatin C equation in kidney transplant recipients.
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Affiliation(s)
| | - Nicoline V Krogstrup
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Nephrology, Copenhagen University Hospital, Kobenhavn, Denmark
| | - Mihai Oltean
- The Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Bente Jespersen
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Marie Bodilsen Nielsen
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Henrik Birn
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
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15
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Cheng J, Sun J, Zhao Y, Li X, Jiang Y, Lv R, Li H, Chen J. Cross-Sectional and Longitudinal Associations Between the Serum G\lobulin Level, and Renal Impairment and All-Cause Deaths in Chinese Patients With Newly Diagnosed Multiple Myeloma. Front Oncol 2022; 12:850961. [PMID: 35756671 PMCID: PMC9213688 DOI: 10.3389/fonc.2022.850961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 04/14/2022] [Indexed: 11/13/2022] Open
Abstract
Background A large number of studies have shown that serum globulin plays an important role in a variety of cancers; However, few studies have identified the association between serum globulin levels and end-stage renal disease (ESRD) and all-cause death in Chinese patients with multiple myeloma (MM). Methods A generalized additive model and smooth curve fitting were fitted to assess the cross-sectional relationship between the serum globulin levels and renal impairment (RI) at baseline. Multivariate-adjusted Cox regression models were performed to determine the associations between the baseline serum globulin levels and the onset of all-cause death and ESRD in patients with MM. Results 288 participants who were followed for > 3 months were eligible for the retrospective study. The median serum globulin level was 5.1 ± 2.6 mg/dL. The average follow-up time was 23.3 months. Thirty-two patients (11.5%) had ESRD and 24 patients (8.33%) died after diagnosis. In patients with a serum globulin level < 6.1 mg/dL, the serum globulin level had an independent, negative correlation with the occurrence of MM-related RI. Patients were divided into three groups on the basis of serum globulin tertiles: low (L group), 3.3 mg/dL; middle (M group), 3.3-6.0 mg/dL; and high (H group), 6.0 mg/dL. Cox regression analysis showed that low serum globulin levels may be independent risk factors for all-cause death and the occurrence of ESRD in patients with MM; however, an elevated baseline serum globulin can predict all-cause deaths in patients with MM, but cannot predict the onset of ESRD. Conclusions This observational study suggested that there was a non-linear relationship between the serum globulin level and the occurrence of RI in patients with MM. This finding showed that the serum globulin level had a U-shaped association with all-cause death and an L-shaped association with ESRD in patients with MM.
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Affiliation(s)
- Jun Cheng
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Jia Sun
- Department of Kidney Disease, First People's Hospital of Linping District, Hangzhou, China
| | - Yi Zhao
- Hematology, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Xiayu Li
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Yan Jiang
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Rong Lv
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Heng Li
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, China
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Acute kidney injury secondary to urinary tract infection in kidney transplant recipients. Sci Rep 2022; 12:10858. [PMID: 35760823 PMCID: PMC9237017 DOI: 10.1038/s41598-022-15035-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 06/16/2022] [Indexed: 12/29/2022] Open
Abstract
Acute kidney injury (AKI) in kidney transplant recipients (KTRs) is a common, yet poorly investigated, complication of urinary tract infections (UTI) and urosepsis. A retrospective comparative analysis was performed, recruiting 101 KTRs with urosepsis, 100 KTRs with UTI, and 100 KTRs without history of UTI or sepsis. The incidences of AKI in the urosepsis and UTI groups were 75.2% and 41%, respectively. The urosepsis group has also presented with a significantly higher prevalence of AKI stage 2 and 3 than the UTI group. The rates of recovery from AKI stages 1, 2 and 3, were 75,6%, 55% and 26.1%, respectively. Factors independently associated with renal recovery from AKI were: AKI severity grade (AKI stage 2 with OR = 0.25 and AKI stage 3 with OR = 0.1), transfusion of red blood cells (RBC) (OR = 0.22), and the use of steroid bolus in the acute phase of treatment (OR = 4). The septic status (urosepsis vs UTI) did not influence the rates of renal recovery from AKI after adjustment for the remaining variables. The dominant cause of RBC transfusions in the whole population was upper GI-bleeding. In multivariable analyses, the occurrence of AKI was also independently associated with a greater decline of eGFR at 1-year post-discharge and with a greater risk of graft loss. In KTRs with both urosepsis and UTI, the occurrence of AKI portends poor transplantation outcomes. The local transfusion policy, modulation of immunosuppression and stress ulcer prophylaxis (which is not routinely administered in KTRs) in the acute setting may be modifiable factors that significantly impact long-term transplantation outcomes.
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17
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Utility of Estimated Glomerular Filtration Rate Equations in Assessing Renal Allograft Function: Are They Accurate? Transplant Proc 2022; 54:329-334. [DOI: 10.1016/j.transproceed.2022.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 11/19/2022]
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Rasking L, Vanbrabant K, Bové H, Plusquin M, De Vusser K, Roels HA, Nawrot TS. Adverse Effects of fine particulate matter on human kidney functioning: a systematic review. Environ Health 2022; 21:24. [PMID: 35135544 PMCID: PMC8822715 DOI: 10.1186/s12940-021-00827-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 12/27/2021] [Indexed: 05/24/2023]
Abstract
BACKGROUND Ambient fine particulate matter (PM < 2.5 μm, PM2.5) is gaining increasing attention as an environmental risk factor for health. The kidneys are considered a particularly vulnerable target to the toxic effects that PM2.5 exerts. Alteration of kidney function may lead to a disrupted homeostasis, affecting disparate tissues in the body. This review intends to summarize all relevant knowledge published between January 2000 and December 2021 on the effects of ambient PM2.5 and the adverse effects on kidney function in adults (≥ 18 years). RESULTS AND DISCUSSION Studies published in peer-reviewed journals, written in English, regarding the effects of PM2.5 on kidney function and the development and/or exacerbation of kidney disease(s) were included. Of the 587 nonduplicate studies evaluated, 40 were included, comprising of studies on healthy or diagnosed with pre-existing disease (sub)populations. Most of the studies were cohort studies (n = 27), followed by 10 cross-sectional, 1 ecological and 2 time-series studies. One longitudinal study was considered intermediate risk of bias, the other included studies were considered low risk of bias. A large portion of the studies (n = 36) showed that PM2.5 exposure worsened kidney outcome(s) investigated; however, some studies show contradictory results. Measurement of the estimated glomerular filtration rate, for instance, was found to be positively associated (n = 8) as well as negatively associated (n = 4) with PM2.5. LIMITATIONS AND CONCLUSION The main limitations of the included studies include residual confounding (e.g., smoking) and lack of individual exposure levels. The majority of included studies focused on specific subpopulations, which may limit generalizability. Evidence of the detrimental effects that ambient PM2.5 may exert on kidney function is emerging. However, further investigations are required to determine how and to what extent air pollution, specifically PM2.5, exerts adverse effects on the kidney and alters its function. REGISTRATION The systematic review protocol was submitted and published by the International Prospective Register of Systematic Reviews (PROSPERO; CRD42020175615 ).
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Affiliation(s)
- Leen Rasking
- Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium
| | - Kenneth Vanbrabant
- Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium
| | - Hannelore Bové
- Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium
| | - Michelle Plusquin
- Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium
| | - Katrien De Vusser
- Nephrology and Kidney Transplantation, University Hospital Leuven, Leuven, Belgium
- Department of Microbiology, Immunology, and Transplantation, Leuven University, Leuven, Belgium
| | - Harry A Roels
- Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium
- Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium.
- Department of Public Health and Primary Care, Environment and Health Unit, Leuven University, Leuven, Belgium.
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Sise ME, Goldberg DS, Schaubel DE, Fontana RJ, Kort JJ, Alloway RR, Durand CM, Blumberg EA, Woodle ES, Sherman KE, Brown RS, Friedewald JJ, Desai NM, Sultan ST, Levitsky J, Lee MD, Strohbehn IA, Landis JR, Fernando M, Gustafson JL, Chung RT, Reese PP. One-Year Outcomes of the Multi-Center StudY to Transplant Hepatitis C-InfeCted kidneys (MYTHIC) Trial. Kidney Int Rep 2022; 7:241-250. [PMID: 35155863 PMCID: PMC8820987 DOI: 10.1016/j.ekir.2021.11.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/05/2021] [Accepted: 11/15/2021] [Indexed: 12/29/2022] Open
Abstract
Introduction Transplanting kidneys from hepatitis C virus (HCV) viremic donors into HCV-negative patients (HCV D-RNA-positive/R-negative) has evolved from experimental to “standard-of-care” at many centers. Nevertheless, most data derive from single centers and provide only short-term follow-up. Methods The Multicenter Study to Transplant Hepatitis C-Infected Kidneys (MYTHIC) study was a multicenter (7 sites) trial of HCV D-RNA-positive/R-negative kidney transplantation (KT) followed by 8 weeks of glecaprevir/pibrentasvir (G/P) initiated 2 to 5 days post-KT. Prespecified outcomes included probability of KT (vs. matched waitlist comparators) and 1-year safety outcomes, allograft function, and survival. Results Among 63 enrolled patients, 1-year cumulative incidence of KT was approximately 3.5-fold greater for the MYTHIC cohort versus 2055 matched United Network for Organ Sharing (UNOS) comparators who did not opt-in to receive a kidney from an HCV-viremic donor (68% vs. 19%, P < 0.0001). Of 30 HCV D-RNA-positive/R-negative KT recipients, all achieved HCV cure. None developed clinically significant liver disease or HCV-related kidney injury. Furthermore, 1-year survival was 93% and 1-year graft function was excellent (median creatinine 1.17; interquartile range [IQR]: 1.02–1.38 mg/dl). There were 4 cases of cytomegalovirus (CMV) disease among 10 CMV-negative patients transplanted with a kidney from an HCV-viremic/CMV-positive donor. Conclusion The 1-year findings from this multicenter trial suggest that opting-in for HCV-viremic KT offers can increase probability of KT with excellent 1-year outcomes. Trial Registration: NCT03781726
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Ke G, Xie Z, Xiao J, Zhang Y, Hu Y, Li B, Jiang N, Chen X, Liu S, Shi W. Comparison of 6 equations for estimating glomerular filtration rate in a Chinese benign hypertensive nephrosclerosis population. Medicine (Baltimore) 2021; 100:e28318. [PMID: 34941129 PMCID: PMC8701793 DOI: 10.1097/md.0000000000028318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/24/2021] [Indexed: 01/05/2023] Open
Abstract
Equations to estimate glomerular filtration rate (eGFR) are useful for monitoring tje renal status of benign hypertensive nephrosclerosis (BHN). This study aimed to compare the applicability of 6 equations (Cockcroft-Gault [CG] adjusted for body surface area, original modification of diet in renal disease [MDRD], American abbreviated MDRD, Chinese modified MDRD, Chinese abbreviated MDRD, and Chronic Kidney Disease Epidemiology [CKD-EPI]) to estimate GFR in a Chinese BHN population. A total of 179 patients diagnosed with BHN were enrolled. The GFR estimated by each equation was compared to the reference GFR (rGFR) measured using the dual plasma sampling technetium-labeled diethylenetriaminepentaacetic acid method. The Chinese modified and Chinese abbreviated MDRD equations overestimated the rGFR, while the CG, CG adjusted for body surface area, original MDRD, American abbreviated MDRD, and CKD-EPI equations underestimated the rGFR. The difference in performance between estimated GFR (eGFR) based on the American abbreviated MDRD equation and the rGFR was not statistically significant (P = .191), while differences in the others were statistically significant (P < .05). Furthermore, the advantages in deviation, absolute deviation, deviation degree, precision, and accuracy were also significantly different from those of the other equations. Our findings suggest that eGFR based on the American abbreviated MDRD equation is suitable for the Chinese BHN population.
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Affiliation(s)
- Guibao Ke
- Department of Nephrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
- Department of Nephrology, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, Sichuan, China
| | - Zhibin Xie
- Department of Nephrology, Zhongshan City People's Hospital, Zhongshan, Guangdong, China
| | - Jie Xiao
- Department of Nephrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yamei Zhang
- Department of Nephrology, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, Sichuan, China
| | - Yao Hu
- Department of Nephrology, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, Sichuan, China
| | - Bohou Li
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Nan Jiang
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Xueqin Chen
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Shuangxin Liu
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Wei Shi
- Department of Nephrology, Gaozhou City People's Hospital, Gaozhou, Guangdong, China
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21
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Ryu JH, Koo TY, Ro H, Cho JH, Kim MG, Huh KH, Park JB, Lee S, Han S, Kim J, Oh KH, Yang J. Better health-related quality of life in kidney transplant patients compared to chronic kidney disease patients with similar renal function. PLoS One 2021; 16:e0257981. [PMID: 34606505 PMCID: PMC8489710 DOI: 10.1371/journal.pone.0257981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/14/2021] [Indexed: 11/19/2022] Open
Abstract
Renal functional deterioration is associated with physical and mental burdens for kidney transplant (KT) and chronic kidney disease (CKD) patients. However, the change in health-related quality of life (HRQOL) over time in KT patients compared to that of native CKD patients has not been evaluated. We addressed this issue using KT patients registered in the KNOW-KT cohort study and patients at CKD stage 1–3 registered in the KNOW-CKD cohort study. HRQOL scores were assessed using the Kidney Disease Quality of Life Short Form at baseline, 2-, and 4-years follow-up in 842 KT patients and at baseline and 5-year follow-up in 1,355 CKD patients. SF-36 scores declined at the 4-year follow-up, whereas CKD-targeted scores showed no change in the KT group. In contrast, CKD-targeted scores as well as SF-36 scores were decreased at the 5-year follow-up in CKD patients. When prognostic factors were analyzed for longitudinal HRQOL data over time, renal functions, diabetes, cardiovascular and cerebrovascular diseases, hemoglobin level, marital status, income, employment, and health care were significant prognostic factors. Furthermore, KT was an independent prognostic factor for better HRQOL. These results highlight that KT can offer a better HRQOL than that of CKD patients, even when renal function is similar.
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Affiliation(s)
- Jung-Hwa Ryu
- Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
- Nephrology, Ewha Womans University Seoul Hospital, Seoul, Republic of Korea
| | - Tai Yeon Koo
- Nephrology, Seongnam Citizens Medical Center, Seongnam, Republic of Korea
| | - Han Ro
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jang-Hee Cho
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Myung-Gyu Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyu Ha Huh
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Berm Park
- Department of Surgery, Seoul Samsung Medical Center, Sungkyunkwan University, Seoul, Republic of Korea
| | - Sik Lee
- Department of Internal Medicine, Chonbuk National University Hospital, Jeonju, Republic of Korea
| | - Seungyeup Han
- Department of Internal Medicine, Keimyung University, Dongsan Medical Center, Daegu, Republic of Korea
| | - Jayoun Kim
- Medical Research Collaborating Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jaeseok Yang
- Division of Nephrology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- * E-mail: ,
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22
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Cheng J, Zhang W, Zhao Y, Li X, Lv R, Li H, Chen J. Association of serum calcium levels with renal impairment and all-cause death in Chinese patients with newly diagnosed multiple myeloma: a cross-sectional, longitudinal study. Nutr Metab (Lond) 2021; 18:19. [PMID: 33573678 PMCID: PMC7879693 DOI: 10.1186/s12986-020-00525-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 11/21/2020] [Indexed: 11/17/2022] Open
Abstract
Background More studies have shown that serum calcium has a crucial role in many types of cancers. However, few studies have determined the association between serum calcium levels and renal impairment (RI) and all-cause death in Chinese patients with multiple myeloma (MM).
Methods A total of 246 of 565 participants who were followed for > 6 months from a MM cohort at our institution were eligible for the retrospective study. A generalized additive model and smooth curve fitting were performed to investigate the cross-sectional relationship between the serum calcium level and RI at baseline. Multivariate-adjusted Cox regression models were fitted to assess the associations between baseline serum calcium levels and the onset of end-stage renal disease (ESRD) or death in patients with MM. Results A total of 172 of 565 patients (30.4%) with newly diagnosed MM presented with RI. The mean duration of follow-up was 26.64 months. Twenty-one patients (8.54%) died and 28 patients (11.52%) had ESRD. In patients with a serum calcium level > 2.30 mmol/L, the serum calcium level was independently associated with the occurrence of MM-related RI. Cox regression analysis showed that baseline serum calcium levels were consistently associated with a higher risk of all-cause death in the fully adjusted model, but were not associated with the occurrence of ESRD. When patients were categorized into two groups according to baseline mean serum calcium level, deaths occurred in 13 patients (15.1%) with a mean serum calcium level > 2.44 mmol/L compared to eight patients (5.0%) with a mean serum calcium level < 2.44 mmol/L (p < 0.05); Eighteen patients (11.46%) with a mean serum calcium level < 2.44 mmol/L progressed to ESRD compared to 13 patients (11.6%) with a serum calcium level > 2.44 mmol/L (p > 0.05).
Conclusions This observational study showed that there was a nonlinear relationship between the serum calcium level and the presence of RI in patients with MM. An elevated baseline calcium level predicted all-cause death, but did not predict the occurrence of ESRD in patients with MM followed for > 6 months.
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Affiliation(s)
- Jun Cheng
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, 310003, China
| | - Wen Zhang
- Department of Nephrology, The Yuhang District First People's Hospital, Hangzhou, China
| | - Yi Zhao
- Hematology Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, 310003, China
| | - Xiayu Li
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, 310003, China
| | - Rong Lv
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, 310003, China
| | - Heng Li
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, 310003, China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, Medical School of Zhejiang University, Hangzhou, 310003, China.
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23
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Li Y, Zhang Y, Shen X, Zhao F, Yan S. The Value of Ketone Bodies in the Evaluation of Kidney Function in Patients with Type 2 Diabetes Mellitus. J Diabetes Res 2021; 2021:5596125. [PMID: 33937415 PMCID: PMC8055418 DOI: 10.1155/2021/5596125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/30/2021] [Accepted: 04/05/2021] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVES Recent studies have shown that the slightly elevated circulating levels of ketone bodies (KBs) played a significant role in the treatment of various diseases. This study is aimed at investigating the association between different levels of KBs and kidney function in patients with type 2 diabetes mellitus (T2DM). METHODS A retrospective study of 955 patients with T2DM (426 women and 529 men) admitted to our hospital from December 2017 to September 2019 was conducted. Patients were divided into different groups in line with the levels of KBs (low-normal group: 0.02-0.04 mmol/L, middle-normal group: 0.05-0.08 mmol/L, high-normal group: 0.09-0.27 mmol/L, and slightly elevated group: >0.27 and <3.0 mmol/L). RESULTS In the present study, individuals with high-normal levels of KBs had the lowest risk of diabetic kidney disease (DKD) and increased peak systolic velocity (PSV); those with middle-normal levels of KBs had the lowest risk of increased renal arterial resistive index (RI), with a positive correlation between increased α1-microglobulin and KB concentration. In addition, the indicators of glomerulus, renal tubules, and renal arteries were all poor with slightly elevated circulating levels of KBs, and KB concentration lower than 0.09 mmol/L can be applied as the threshold for low risk of renal function damage. CONCLUSIONS In summary, slightly elevated circulating levels of ketone bodies are not of benefit for renal function in patients with type 2 diabetes mellitus.
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Affiliation(s)
- Yimei Li
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Yongze Zhang
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Ximei Shen
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Fengying Zhao
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Sunjie Yan
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
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AbdElhalim MS, Kenawy AS, Demellawy HHE, Azouz AA, Alghanem SS, Al-Otaibi T, Gheith O, ElMonem MA, Afifi MK, Hussein RRS. The impact of omeprazole on mycophenolate pharmacokinetics in kidney transplant recipients. Kidney Res Clin Pract 2020; 39:479-486. [PMID: 33214342 PMCID: PMC7770995 DOI: 10.23876/j.krcp.20.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/15/2020] [Accepted: 08/19/2020] [Indexed: 11/15/2022] Open
Abstract
Background The absorption rates of mycophenolate mofetil (MMF) and enteric-coated mycophenolate sodium (EC-MPS) may be influenced by the concomitant use of omeprazole. Methods One hundred kidney transplant patients were recruited during their outpatient visits, including 50 on MMF and 50 on EC-MPS. At the clinic, a predose mycophenolic acid (MPA) sample (C0) was collected; subsequently, the participants received the proton-pump inhibitor omeprazole along with either MMF or EC-MPS. Two more blood samples were collected at 1.5 and 3.5 hours and used to estimate an area under the curve (AUC) from zero to 12 hours [AUC (0-12)]. Results The mean number of months after transplant was 92 months. The median AUC (0-12) and C0 results were 62.2 mg·h/L and 2.0 mg/L for the MMF group and 71.9 mg·h/L and 1.8 mg/L for the EC-MPS group (P = 0.160 and 0.225, respectively). Interestingly, 54% of the MMF group and 62% of the EC-MPS group showed AUCs above the target values. The correlation between MPA C0 and the predicted AUC was poor in both groups. Conclusion Omeprazole can be safely co-administered with either MMF or EC-MPS, as it did not compromise the MPA exposure. Unexpectedly, however, a high percentage of patients presented MPA AUCs exceeding the target value, highlighting the importance of periodically assessing MPA level.
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Affiliation(s)
| | - Ahmed S Kenawy
- Hamed Al-Essa Organ Transplant Center, Ibn Sina Hospital, Kuwait City, Kuwait
| | - Heba H El Demellawy
- Department of Nephrology, Faculty of Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Amany A Azouz
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Sarah S Alghanem
- Department of Pharmacy Practice, Faculty of Pharmacy, Kuwait University, Kuwait City, Kuwait
| | - Torki Al-Otaibi
- Hamed Al-Essa Organ Transplant Center, Ibn Sina Hospital, Kuwait City, Kuwait
| | - Osama Gheith
- Hamed Al-Essa Organ Transplant Center, Ibn Sina Hospital, Kuwait City, Kuwait.,Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Mohamed Abd ElMonem
- Hamed Al-Essa Organ Transplant Center, Ibn Sina Hospital, Kuwait City, Kuwait
| | - Mohammed K Afifi
- Hamed Al-Essa Organ Transplant Center, Ibn Sina Hospital, Kuwait City, Kuwait
| | - Raghda R S Hussein
- Department of Clinical Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
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Delay A, Moranne O, Fafin C, Mariat C, Alamartine E, Delanaye P, Maillard N. Relationship between decline in estimated or measured glomerular filtration rate and 16-year postrenal transplant outcome. Clin Kidney J 2020; 14:1665-1672. [PMID: 34084462 PMCID: PMC8162849 DOI: 10.1093/ckj/sfaa203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 08/09/2020] [Indexed: 12/03/2022] Open
Abstract
Background Glomerular filtration rate (GFR) decline ≥30% over 2 years can substitute for the conventional ‘doubling of serum creatinine’ to predict end-stage renal disease in patients with native kidneys. While chronic kidney disease trajectory is less predictable in transplanted patients, recent data have suggested that similar GFR decline might be an acceptable surrogate for long-term transplant outcome. We sought (i) to confirm the prognostic value of an early GFR decline in kidney transplant recipients and (ii) to determine whether using direct measurement of GFR with inulin improves the performance of this surrogate. Methods We retrospectively analysed all recipients transplanted between 1989 and 2000 in our centre, with inulin-measured and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)-estimated GFR at 1 and 5 years post-transplant, and evaluated the performance [time-dependent area under the receiver operating characteristic curve (ROC AUC) and subdistribution hazard ratio (sdHR) with competing risk model] of GFR change to predict graft failure and all-cause mortality. Results Out of 417 kidney transplant recipients, 116 patients had lost their graft and 77 had died 16 years after transplantation. While being significantly associated with graft failure [sdHR = 2.37 (95% confidence interval 1.47–3.83)], CKD-EPI-GFR decline ≥30% failed to appropriately predict long-term graft survival (C-statistics of 0.63). Concordance between inulin-GFR and CKD-EPI-GFR to detect similar GFR change was only 53%. Inulin-GFR change was, however, not a better predictor (C-statistics of 0.59). Comparable results were observed for mortality. Conclusions Our data suggest that early GFR decline is a poor surrogate for long-term transplant outcome, even when change in GFR is directly measured by a reference method.
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Affiliation(s)
- Agnes Delay
- Service de Néphrologie, Dialyse, Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, EA 3065, Université Jean MONNET, Saint-Etienne, France
| | - Olivier Moranne
- Service de Néphrologie, Dialyse, Aphérèse, Hôpital Caremeau, CHU de Nîmes, France.,EA 2415, Faculté de Médecine, Université de Montpellier, Montpellier, France
| | - Coraline Fafin
- Service de Néphrologie, Dialyse, Aphérèse, Hôpital Caremeau, CHU de Nîmes, France
| | - Christophe Mariat
- Service de Néphrologie, Dialyse, Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, EA 3065, Université Jean MONNET, Saint-Etienne, France
| | - Eric Alamartine
- Service de Néphrologie, Dialyse, Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, EA 3065, Université Jean MONNET, Saint-Etienne, France
| | - Pierre Delanaye
- Service de Néphrologie, CHU Sart Tilman, Université de Liège, Liège, Belgium
| | - Nicolas Maillard
- Service de Néphrologie, Dialyse, Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, EA 3065, Université Jean MONNET, Saint-Etienne, France
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The failure of glomerular filtration rate estimating equations among obese population. PLoS One 2020; 15:e0242447. [PMID: 33206712 PMCID: PMC7673537 DOI: 10.1371/journal.pone.0242447] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 11/03/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Obesity is a major public health with increasing numbers of obese individuals are at risk for kidney disease. However, the validity of serum creatinine-based glomerular filtration rate (GFR) estimating equations in obese population is yet to be determined. METHODS We evaluated the performance of the reexpressed Modification of Diet in Renal Disease (MDRD), reexpressed MDRD with Thai racial factor, Thai estimated GFR (eGFR) as well as Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations among obese patients, defined as body mass index (BMI) ≥25 kg/m2 with the reference measured GFR (mGFR) determined by 99mTc-diethylene triamine penta-acetic acid (99mTc-DTPA) plasma clearance method. Serum creatinine levels were measured using standardized enzymatic method simultaneously with GFR measurement. The statistical methods in assessing agreement for continuous data including total deviation index (TDI), concordance correlation coefficient (CCC), and coverage probability (CP) for each estimating equation were compared with the reference mGFR. Accuracy within 10% representing the percentage of estimations falling within the range of ±10% of mGFR values for all equations were also tested. RESULTS A total of 240 Thai obese patients were finally recruited with mean BMI of 31.5 ± 5.8 kg/m2. In the total population, all eGFR equations underestimated the reference mGFR. The average TDI values were 55% indicating that 90% of the estimates falling within the range of -55 to +55% of the reference mGFR. The CP values averaged 0.23 and CCC scores ranged from 0.75 to 0.81, reflecting the low to moderate levels of agreement between each eGFR equation and the reference mGFR. The proportions of patients achieving accuracy 10% ranged from 23% for the reexpressed MDRD equation to 33% for the Thai eGFR formula. Among participants with BMI more than 35 kg/m2 (n = 48), the mean error of all equations was extremely wide and significantly higher for all equations compared with the lower BMI category. Also, the strength of agreement evaluated by TDI, CCC, and CP were low in the subset of patients with BMI ≥35 kg/m2. CONCLUSION Estimating equations generally underestimated the reference mGFR in subjects with obesity. The overall performance of GFR estimating equations demonstrated poor concordance with the reference mGFR among individuals with high BMI levels. In certain clinical settings such as decision for dialysis initiation, the direct measurements of GFR are required to establish real renal function among obese population.
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Deceased vs. living donor kidney transplantation in prediction of acute renal allograft rejection using Tc-99m DTPA renal scan. Ann Nucl Med 2020; 34:847-855. [PMID: 32918204 DOI: 10.1007/s12149-020-01511-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/16/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES No data are available regarding different prognostic values of Tc-99m diethylenetriaminepentaacetic acid (DTPA) renal scan in kidney transplantation (KT) recipients according to two distinct donor types: deceased donor KT (DDKT) and living donor KT (LDKT). We evaluated whether the interpretation of Tc-99m DTPA renal scan should be different by the donor type in predicting acute renal allograft rejection (AR). METHODS One hundred and seven KT recipients (61 DDKT and 46 LDKT) were included in this study. Tc-99m DTPA renal scan was performed 1 week after KT. AR was defined as pathological evidence of renal allograft rejection during the first 6 months of KT. Clinical factors and Tc-99m DTPA renal scan findings were compared between patients with and without AR. To further analyze the effect of the donor type, they were again compared within DDKT and LDKT recipients, respectively. RESULTS AR occurred in 15 patients (7 DDKT and 8 LDKT recipients). Among all patients, time to peak uptake (TTP) of the cortex (TTPCX) measured by Tc-99m DTPA renal scan was independently predictive of AR. Moreover, TTPKD (TTP of the whole transplanted kidney) and TTPCX were the only predictors of AR among DDKT recipients. The most accurate predictors were TTPCX and kidney area on renal scan for DDKT and LDKT, respectively. However, these parameters could not predict AR for the opposite donor type. CONCLUSIONS AR could be effectively predicted by Tc-99m DTPA renal scan obtained at 1 week post-KT. Different parameters should be applied according to the donor type in the prediction of AR.
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Sise ME, Goldberg DS, Kort JJ, Schaubel DE, Alloway RR, Durand CM, Fontana RJ, Brown RS, Friedewald JJ, Prenner S, Landis JR, Fernando M, Phillips CC, Woodle ES, Rike-Shields A, Sherman KE, Elias N, Williams WW, Gustafson JL, Desai NM, Barnaba B, Norman SP, Doshi M, Sultan ST, Aull MJ, Levitsky J, Belshe DS, Chung RT, Reese PP. Multicenter Study to Transplant Hepatitis C-Infected Kidneys (MYTHIC): An Open-Label Study of Combined Glecaprevir and Pibrentasvir to Treat Recipients of Transplanted Kidneys from Deceased Donors with Hepatitis C Virus Infection. J Am Soc Nephrol 2020; 31:2678-2687. [PMID: 32843477 DOI: 10.1681/asn.2020050686] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/06/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Single-center trials and retrospective case series have reported promising outcomes using kidneys from donors with hepatitis C virus (HCV) infection. However, multicenter trials are needed to determine if those findings are generalizable. METHODS We conducted a prospective trial at seven centers to transplant 30 kidneys from deceased donors with HCV viremia into HCV-uninfected recipients, followed by 8 weeks of once-daily coformulated glecaprevir and pibrentasvir, targeted to start 3 days posttransplant. Key outcomes included sustained virologic response (undetectable HCV RNA 12 weeks after completing treatment with glecaprevir and pibrentasvir), adverse events, and allograft function. RESULTS We screened 76 patients and enrolled 63 patients, of whom 30 underwent kidney transplantation from an HCV-viremic deceased donor (median kidney donor profile index, 53%) in May 2019 through October 2019. The median time between consent and transplantation of a kidney from an HCV-viremic donor was 6.3 weeks. All 30 recipients achieved a sustained virologic response. One recipient died of complications of sepsis 4 months after achieving a sustained virologic response. No severe adverse events in any patient were deemed likely related to HCV infection or treatment with glecaprevir and pibrentasvir. Three recipients developed acute cellular rejection, which was borderline in one case. Three recipients developed polyomavirus (BK) viremia near or >10,000 copies/ml that resolved after reduction of immunosuppression. All recipients had good allograft function, with a median creatinine of 1.2 mg/dl and median eGFR of 57 ml/min per 1.73 m2 at 6 months. CONCLUSIONS Our multicenter trial demonstrated safety and efficacy of transplantation of 30 HCV-viremic kidneys into HCV-negative recipients, followed by early initiation of an 8-week regimen of glecaprevir and pibrentasvir.
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Affiliation(s)
- Meghan E Sise
- Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - David S Goldberg
- Division of Digestive Health and Liver Diseases, University of Miami Miller School of Medicine, Miami, Florida
| | - Jens J Kort
- Global Medical Affairs Research and Development, AbbVie Inc., North Chicago, Illinois
| | - Douglas E Schaubel
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rita R Alloway
- Division of Nephrology, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Christine M Durand
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Robert J Fontana
- Division of Gastroenterology and Hepatology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Robert S Brown
- Division of Gastroenterology and Hepatology, Weill Cornell Medicine, New York, New York
| | - John J Friedewald
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Stacey Prenner
- Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - J Richard Landis
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Melissa Fernando
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Caitlin C Phillips
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - E Steve Woodle
- Division of Transplantation, Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Adele Rike-Shields
- Division of Transplantation, Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio.,The Christ Hospital, Cincinnati, Ohio
| | - Kenneth E Sherman
- Division of Digestive Disease, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Nahel Elias
- Transplant Center and Division of Transplant Surgery, Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Winfred W Williams
- Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Jenna L Gustafson
- Gastrointestinal Division, Department of Medicine, Liver Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Niraj M Desai
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Brittany Barnaba
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Silas P Norman
- Division of Nephrology, Michigan Medicine, Ann Arbor, Michigan
| | - Mona Doshi
- Division of Nephrology, Michigan Medicine, Ann Arbor, Michigan
| | - Samuel T Sultan
- Division of Transplant Surgery, New York-Presbyterian/Weill Cornell Medicine, New York, New York
| | - Meredith J Aull
- Division of Transplant Surgery, New York-Presbyterian/Weill Cornell Medicine, New York, New York
| | - Josh Levitsky
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Dianne S Belshe
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Raymond T Chung
- Gastrointestinal Division, Department of Medicine, Liver Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Peter P Reese
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Renal-Electrolyte and Hypertension Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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A Multicenter Application of the 2018 Banff Classification for BK Polyomavirus-associated Nephropathy in Renal Transplantation. Transplantation 2020; 103:2692-2700. [PMID: 30896679 DOI: 10.1097/tp.0000000000002712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND With current immunosuppressive regimens, BK polyomavirus-associated nephropathy (BKPyVAN) is still a matter of concern. Stratification of patients at risk for allograft loss is of uttermost importance to guide treatment choice and assess prognosis. In 2018, the Banff working group proposed a classification scheme for the prognosis of BKPyVAN, but external application on independent cohorts is yet to be performed. We investigated how the 2018 Banff classification would perform in a multicenter cohort comprising 50 cases of biopsy-proven BKPyVAN compared to previously published classification systems. METHODS We analyzed consecutive BKPyVAN cases from two Dutch university hospitals between 2002 and 2013, retrieved clinical data, and scored all biopsies according to the Banff 2018 classification, and as a comparison, 4 previously proposed BKPyVAN classification systems. We used estimated glomerular filtration rate trajectories and death-censored graft survival as primary endpoints. RESULTS The 2018 Banff classification did not associate with estimated glomerular filtration rate decline or graft failure and performed only slightly better than the 4 previously proposed classifiers. Anti-human leukocyte antigen donor-specific antibodies (DSAs), especially in combination with ongoing biopsy-proven BKPyVAN on follow-up, did correlate with graft function and survival. Patients who were DSA+/BKPyVAN+ on follow-up had more inflammation at the baseline biopsy, which by itself was not associated with graft outcomes. CONCLUSIONS Neither the 2018 Banff BKPyVAN classification nor previously published stratification systems could be applied to our multicenter patient cohort. Our data suggest that there might be a prognostic value for follow-up biopsies and DSA measurements to improve risk stratification after BKPyVAN, although prospective multicenter efforts with protocol measurements are needed to confirm this.
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Selistre LDS, Lemoine S, Dantec A, Buron F, de Souza VC, Bertoldo M, Poli-de-Figueiredo CE, Rimmelé T, Thaunat O, Badet L, Morelon E, Sicard A, Dubourg L. Comparison of creatinine-based equations for estimating glomerular filtration rate in deceased donor renal transplant recipients. PLoS One 2020; 15:e0231873. [PMID: 32343691 PMCID: PMC7188287 DOI: 10.1371/journal.pone.0231873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/26/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Estimating glomerular filtration rate (GFR) is important for clinical management in kidney transplantation recipients (KTR). However, very few studies have evaluated the performance of the new GFR estimating equations (Lund-Malmö Revised-LMR, and Full Age Spectrum-FAS) in KTR. METHODS GFR was estimated (eGFR) using CKD-EPI, MDRD, LMR, and FAS equations and compared to GFR measurement (mGFR) by reference methods (inuline urinary and iohexol plasma clearance) in 395 deceased-donor KTR without corticosteroids. The equations performance was assessed using bias (mean difference of eGFR and mGFR), precision (standard deviation of the difference), accuracy (concordance correlation coefficient-CCC), and agreements (total deviation index-TDI). The area under receiver operating characteristic curves (ROC) and the likelihood ratio for a positive result were calculated. RESULTS In the total population, the performance of the CKD-EPI, MDRD and FAS equations was significantly lower than the LMR equation regarding the mean [95%CI] difference in bias (-2.0 [-4.0; -1.5] versus 9.0 [7.5; 10.0], 5.0 [3.5; 6.0] and 10.0 [8.5; 11.0] mL/min/1.73m2, P<0.005) and TDI (17.10 [16.41; 17.88], 25.91 [24.66; 27.16], 21.23 [19.48; 23.13] and 25.84 [24.16; 27.57], respectively). Concerning the CCC, all equation had poor agreement (<0.800) without statically difference between them. However, all equations had excellent area under the ROC curve (>0.900), and LMR equation had the best ability to correctly predict KTR with mGFR<45 mL/min/1.73 m2 (positive likelihood ratio: 8.87 [5.79; 13.52]). CONCLUSION Among a referral group of subjects KTR, LMR equation had the best mean bias and TDI, but with no significant superiority in other agreement tools. Caveat is required in the use and interpretation of PCr-based equations in this specific population.
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Affiliation(s)
- Luciano da Silva Selistre
- Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France
- Universidade de Caxias do Sul—Programa de Pós-Graduação em Ciências da Saúde, Caxias do Sul, Brazil
- Hospital Geral de Caxias do Sul, Caxias do Sul, Brazil
| | - Sandrine Lemoine
- Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France
- Université Lyon 1, Lyon, France
- CarMeN: Cardiovasculaire, Métabolisme, Diabétologie & Nutrition-INSERM U1060/Lyon 1, Lyon, France
| | - Allyriane Dantec
- Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France
| | - Fanny Buron
- Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France
| | - Vandréa Carla de Souza
- Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France
- Universidade de Caxias do Sul—Programa de Pós-Graduação em Ciências da Saúde, Caxias do Sul, Brazil
- Hospital Geral de Caxias do Sul, Caxias do Sul, Brazil
| | - Mariana Bertoldo
- Universidade de Caxias do Sul—Programa de Pós-Graduação em Ciências da Saúde, Caxias do Sul, Brazil
| | | | - Thomas Rimmelé
- CarMeN: Cardiovasculaire, Métabolisme, Diabétologie & Nutrition-INSERM U1060/Lyon 1, Lyon, France
- Service d'anesthésie-réanimation, hôpital Edouard-Herriot, Lyon, France
| | - Olivier Thaunat
- Université Lyon 1, Lyon, France
- Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France
- Unité INSERM U1111, Lyon, France
| | - Lionel Badet
- Université Lyon 1, Lyon, France
- Service d’Urologie et Transplantation, Hôpital Edouard Herriot, Lyon, France
| | - Emmanuel Morelon
- Université Lyon 1, Lyon, France
- Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France
- Unité INSERM U1111, Lyon, France
| | - Antoine Sicard
- Université Lyon 1, Lyon, France
- Unité INSERM U1111, Lyon, France
| | - Laurence Dubourg
- Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France
- Université Lyon 1, Lyon, France
- Laboratoire de Biologie Tissulaire et d’ingénierie Thérapeutique (LBTI), UMR 5305 CNRS, Université Claude Bernard Lyon 1, Lyon, France
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Pottel H, Delay A, Maillard N, Mariat C, Delanaye P. 20-year longitudinal follow-up of measured and estimated glomerular filtration rate in kidney transplant patients. Clin Kidney J 2020; 14:909-916. [PMID: 33777374 PMCID: PMC7986444 DOI: 10.1093/ckj/sfaa034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 02/17/2020] [Indexed: 12/15/2022] Open
Abstract
Background The slopes of estimated glomerular filtration rate (eGFR) equations are used in the longitudinal follow-up of transplant patients. A 30% reduction in eGFR over 2 years is often used to predict the subsequent risk of mortality or end-stage renal disease. Whether, at the individual level, such changes in eGFR correspond to changes in measured GFR (mGFR) is actually unknown. Methods The performance of serum creatinine–based eGFR equations was compared with mGFR during the longitudinal follow-up of 20 years in a monocentric study of 417 transplanted patients. Results The accuracy within 30% for the eGFR equations varied between 70 and 75%. All eGFR equations showed a similar pattern, very like the mGFR time profiles. Individual changes (slopes) of mGFR or eGFR were predictive of graft loss in the next months or years, following the decline in GFR, with no evidence for a difference. However, although the tendency is the same as for mGFR, the percentage of transplant patients with a >30% GFR decrease in the last period before graft loss is significantly lower for eGFR than for mGFR, with discordant results from mGFR in ~25% of the cases. Conclusions All eGFR equations showed similar trends as mGFR, but eGFR predictions may not be very useful at the individual patient level.
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Affiliation(s)
- Hans Pottel
- Department of Public Health and Primary Care, KU Leuven Campus Kulak Kortrijk, Kortrijk, Belgium
| | - Agnès Delay
- Service de Néphrologie, Dialyse et Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, France
| | - Nicolas Maillard
- Service de Néphrologie, Dialyse et Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, France
| | - Christophe Mariat
- Service de Néphrologie, Dialyse et Transplantation Rénale, Hôpital Nord, CHU de Saint-Etienne, France
| | - Pierre Delanaye
- Department of Nephrology-Dialysis-Transplantation, University of Liège, CHU Sart Tilman, Liège, Belgium
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Riff C, Besombes J, Gatault P, Barbet C, Büchler M, Blasco H, Halimi JM, Barin-Le Guellec C, Benz-de Bretagne I. Assessment of the glomerular filtration rate (GFR) in kidney transplant recipients using Bayesian estimation of the iohexol clearance. Clin Chem Lab Med 2020; 58:577-587. [PMID: 31926067 DOI: 10.1515/cclm-2019-0904] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 11/17/2019] [Indexed: 11/15/2022]
Abstract
Background Plasma iohexol clearance (CLiohexol) is a reference technique for glomerular filtration rate (GFR) determination. In routine practice, CLiohexol is calculated using one of several formulas, which have never been evaluated in kidney transplant recipients. We aimed to model iohexol pharmacokinetics in this population, evaluate the predictive performance of three simplified formulas and evaluate whether a Bayesian algorithm improves CLiohexol estimation. Methods After administration of iohexol, six blood samples were drawn from 151 patients at various time points. The dataset was split into two groups, one to develop the population pharmacokinetic (POPPK) model (n = 103) and the other (n = 48) to estimate the predictive performances of the various GFR estimation methods. GFR reference values (GFRref) in the validation dataset were obtained by non-compartmental pharmacokinetic (PK) analysis. Predictive performances of each method were evaluated in terms of bias (ME), imprecision (root mean square error [RMSE]) and number of predictions out of the ±10% or 15% error interval around the GFRref. Results A two-compartment model best fitted the data. The Bayesian estimator with samples drawn at 30, 120 and 270 min allowed accurate prediction of GFRref (ME = 0.47%, RMSE = 3.42%), as did the Brøchner-Mortensen (BM) formula (ME = - 0.0425%, RMSE = 3.40%). With both methods, none of the CL estimates were outside the ±15% interval and only 2.4% were outside the ±10% for the BM formula (and none for the Bayesian estimator). In patients with GFR ≤30 mL/min/1.73 m2, the BM formula performed very well, while the Bayesian method could not be evaluated in depth due to too small a number of patients with adequate sampling times. Conclusions GFR can be estimated with acceptable accuracy in kidney transplant patients using the BM formula, but also using a Bayesian algorithm.
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Affiliation(s)
- Camille Riff
- Service de Pharmacologie et Toxicologie, CHU de Tours, Tours, France
| | - Joevin Besombes
- Laboratoire de Biochimie et de Biologie Moléculaire, CHU de Tours, Tours, France
| | - Philippe Gatault
- Service de Néphrologie, Transplantation rénale et Immunologie, CHU de Tours, Tours, France
- EA4245, Université de Tours, Tours, France
- FHU SUPPORT, Tours, France
| | - Christelle Barbet
- Service de Néphrologie, Transplantation rénale et Immunologie, CHU de Tours, Tours, France
| | - Matthias Büchler
- Service de Néphrologie, Transplantation rénale et Immunologie, CHU de Tours, Tours, France
- EA4245, Université de Tours, Tours, France
- FHU SUPPORT, Tours, France
| | - Hélène Blasco
- Laboratoire de Biochimie et de Biologie Moléculaire, CHU de Tours, Tours, France
- UMR INSERM U1253, Université de Tours, Tours, France
| | - Jean-Michel Halimi
- Service de Néphrologie, Transplantation rénale et Immunologie, CHU de Tours, Tours, France
- EA4245, Université de Tours, Tours, France
- FHU SUPPORT, Tours, France
| | - Chantal Barin-Le Guellec
- Laboratoire de Biochimie et de Biologie Moléculaire, CHU de Tours, Tours, France
- FHU SUPPORT, Tours, France
- INSERM U1248, IPPRITT, Université de Limoges, Limoges, France
| | - Isabelle Benz-de Bretagne
- Laboratoire de Biochimie et de Biologie Moléculaire, CHU de Tours, Tours, France
- UMR INSERM U1253, Université de Tours, Tours, France
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Naik AS, Afshinnia F, Aqeel J, Cibrik DM, Samaniego M, Wickman L, Wang SQ, Chowdhury M, Wiggins RC. Accelerated podocyte detachment early after kidney transplantation is related to long-term allograft loss of function. Nephrol Dial Transplant 2020; 34:1232-1239. [PMID: 30500951 DOI: 10.1093/ndt/gfy350] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Kidney allograft half-life has not improved despite excellent short-term survival. Recent long-term surveillance biopsy studies identify accumulating glomerulosclerosis (GS) to be associated with late allograft loss. While podocyte depletion is well known to drive proteinuria and GS in animal models and human glomerular diseases, its role in renal allograft loss of function is generally not recognized. METHODS To address these questions, we collected urine from 125 kidney allograft recipients in the first posttransplant year for urine pellet messenger RNA (mRNA) and protein analysis, with a median follow up of 4.5 years. RESULTS Using multivariable linear models adjusted for proteinuria, transplant, recipient and donor factors, we observed that the average urine pellet podocin mRNA normalized to urine creatinine (UPodCR) in the first posttransplant year was significantly associated with an estimated glomerular filtration rate (eGFR) decline (P = 0.001). The relationship between UPodCR and eGFR decline persisted even among recipients who were nonproteinuric and who had no recurrent or de novo glomerular disease identified on 1-year protocol biopsy. Finally, we identified recipient, donor and recipient:donor body surface area mismatch ratio to be independently associated with UPodCR early after transplantation. A larger donor was protective, while a larger recipient and increased recipient:donor size mismatch ratio were associated with increased UPodCR. CONCLUSIONS These findings support the concept that in kidney allografts, accelerated podocyte loss precedes proteinuria and is associated with inferior long-term allograft outcomes as measured by eGFR decline and may be initiated by recipient:donor size mismatch. Modulating factors driving early podocyte detachment after kidney transplantation may help improve long-term outcomes.
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Affiliation(s)
- Abhijit S Naik
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Farsad Afshinnia
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Jawad Aqeel
- College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, MI, USA
| | - Diane M Cibrik
- Department of Internal Medicine, University of Kansas, Kansas City, KS, USA
| | | | - Larysa Wickman
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, USA
| | - Su Q Wang
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Mahboob Chowdhury
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Roger C Wiggins
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
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Luis-Lima S, Escamilla-Cabrera B, Negrín-Mena N, Estupiñán S, Delgado-Mallén P, Marrero-Miranda D, González-Rinne A, Miquel-Rodríguez R, Cobo-Caso MÁ, Hernández-Guerra M, Oramas J, Batista N, Aldea-Perona A, Jorge-Pérez P, González-Alayón C, Moreno-Sanfiel M, González-Rodríguez JA, Henríquez L, Alonso-Pescoso R, Díaz-Martín L, González-Rinne F, Lavín-Gómez BA, Galindo-Hernández J, Sánchez-Gallego M, González-Delgado A, Jiménez-Sosa A, Torres A, Porrini E. Chronic kidney disease staging with cystatin C or creatinine-based formulas: flipping the coin. Nephrol Dial Transplant 2020; 34:287-294. [PMID: 29762739 DOI: 10.1093/ndt/gfy086] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/09/2018] [Indexed: 11/12/2022] Open
Abstract
Background Chronic kidney disease (CKD) affects 10-13% of the population worldwide. CKD classification stratifies patients in five stages of risk for progressive renal disease based on estimated glomerular filtration rate (eGFR) by formulas and albuminuria. However, the reliability of formulas to reflect real renal function is a matter of debate. The effect of the error of formulas in the CKD classification is unclear, particularly for cystatin C-based equations. Methods We evaluated the reliability of a large number of cystatin C and/or creatinine-based formulas in the definition of the stages of CKD in 882 subjects with different clinical situations over a wide range of glomerular filtration rates (GFRs) (4.2-173.7 mL/min). Results Misclassification was a constant for all 61 formulas evaluated and averaged 50% for creatinine-based and 35% for cystatin C-based equations. Most of the cases were misclassified as one stage higher or lower. However, in 10% of the subjects, one stage was skipped and patients were classified two stages above or below their real stage. No clinically relevant improvement was observed with cystatin C-based formulas compared with those based on creatinine. Conclusions The error in the classification of CKD stages by formulas was extremely common. Our study questions the reliability of both cystatin C and creatinine-based formulas to correctly classify CKD stages. Thus the correct classification of CKD stages based on estimated GFR is a matter of chance. This is a strong limitation in evaluating the severity of renal disease, the risk for progression and the evolution of renal dysfunction over time.
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Affiliation(s)
- Sergio Luis-Lima
- Research Unit Department, Hospital Universitario de Canarias, Tenerife, Spain
| | | | - Natalia Negrín-Mena
- Research Unit Department, Hospital Universitario de Canarias, Tenerife, Spain
| | - Sara Estupiñán
- Nephrology Department, Hospital Universitario de Canarias, Tenerife, Spain
| | | | | | - Ana González-Rinne
- Nephrology Department, Hospital Universitario de Canarias, Tenerife, Spain
| | | | | | | | - Juana Oramas
- Oncology Department, Hospital Universitario de Canarias, Tenerife, Spain
| | - Norberto Batista
- Oncology Department, Hospital Universitario de Canarias, Tenerife, Spain
| | - Ana Aldea-Perona
- Research Unit Department, Hospital Universitario de Canarias, Tenerife, Spain
| | - Pablo Jorge-Pérez
- Cardiology Department, Hospital Universitario de Canarias, Tenerife, Spain
| | | | | | | | - Laura Henríquez
- Endocrinology Department, Hospital Universitario de Canarias, Tenerife, Spain
| | | | - Laura Díaz-Martín
- Research Unit Department, Hospital Universitario de Canarias, Tenerife, Spain
| | | | | | | | | | | | | | - Armando Torres
- Nephrology Department, Hospital Universitario de Canarias, Tenerife, Spain.,Internal Medicine Department, Universidad de La Laguna, Tenerife, Spain
| | - Esteban Porrini
- Internal Medicine Department, Universidad de La Laguna, Tenerife, Spain
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Wu Q, Yang H, Bo H, Fu M, Zhong X, Liang G, Xu Y, Hu Z, Zhang Z, Jin X, Kang Y. Predictive role of estimated glomerular filtration rate prior to surgery in postsurgical acute kidney injury among very elderly patients: a retrospective cohort study. Ren Fail 2020; 41:866-874. [PMID: 31517563 PMCID: PMC6758700 DOI: 10.1080/0886022x.2019.1662440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Acute kidney injury (AKI) is a common complication after surgery. Because of unpredictable and variable age-dependent physical decline, the incidence, risk factor of postsurgical AKI and the predictive power of estimated glomerular filtration rate prior to surgery (eGFRpreSurg) has not been fully elucidated in very elderly patients. Methods: All discharged patients aged ≥80 years without chronic kidney disease who underwent surgery prior to intensive care unit (ICU) admission from 2017 through 2018 were included. Clinical, biological and surgical data were recorded. Mean of outpatient creatinine values from the year prior to ICU admission was used as the baseline value to determine the occurrence of AKI. Postoperative AKI was diagnosed according to Kidney Disease Improving Global Outcomes criteria. Results: Among 243 very elderly postoperative patients admitted during the study period, 48 had AKI during their ICU stay. The occurrence of postsurgical AKI was associated with longer ventilation times (p < .001) and higher mortality (p < .001). The eGFRpreSurg, which is calculated based on the Modification of Diet in Renal Disease study equation, was a risk factor for postoperative AKI (OR = 2.662, p = .010). The incidence of postoperative AKI was significantly higher among patients with lower eGFRpreSurg than among those with an eGFRpreSurg ≥ 70 mL/min/1.73 m2 (p = .003). Conclusion: Postsurgical AKI in very elderly patients has a high incidence and is a risk factor for mortality. Our study confirmed that eGFRpreSurg could be used as an index for AKI risk stratification.
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Affiliation(s)
- Qin Wu
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Hao Yang
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Hong Bo
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Min Fu
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Xi Zhong
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Guanlin Liang
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Yujun Xu
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Zhi Hu
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Zhongwei Zhang
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Xiaodong Jin
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
| | - Yan Kang
- Department of Critical Care Medicine, West China Hospital, Sichuan University , Chengdu , China
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Borrego Utiel FJ, Ramírez Navarro AM, Esteban de la Rosa R, Bravo Soto JA. Comparison of MDRD and the old CKD-EPI equations with the new CKD-EPI equations in kidney transplant patients when glomerular filtration rate is measured with 51Cr-EDTA. Nefrologia 2019; 40:53-64. [PMID: 31843209 DOI: 10.1016/j.nefro.2019.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 07/01/2019] [Accepted: 07/15/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND When estimating the glomerular filtration rate (GFR) in kidney transplant patients, significant differences have been found between MDRD and the 2009 CKD-EPI equations, and reference techniques. OBJECTIVE To analyse and compare the performance of MDRD and the 2009 and 2012 CKD-EPI equations against 51Cr-EDTA plasma clearance in measuring GFR in 270 kidney transplant patients after one year. RESULTS The mean measured GFR was 43.0±11.4 (18.2-79.4)ml/min/1.73m2, with creatinine levels of 1.42±0.46 (0.60-4.33)mg/dl and cystatin C levels of 1.45±0.53 (0.42-3.48)mg/l. This correlated moderately with creatinine (r=-0.61, P<.001) and cystatin C (r=-0.52, P<.001). Using linear regression techniques, it was found that creatinine, cystatin C, gender and age only explained 52% of GFR total variance. All equations overestimated GFR, with a mean bias of +11.1ml/min/1.73m2 for MDRD, +16.4ml/min/1.73m2 for 2009-CKD-EPI, +15ml/min/1.73m2 for CKD-EPI with cystatin C, and +14.1ml/min/1.73m2 for 2012-CKD-EPI with creatinine and cystatin C. eGFR by MDRD and the 2009 CKD-EPI equation correlated better with 51Cr-EDTA than CKD-EPI with creatinine and/or cystatin C. The overestimations were negatively correlated with creatinine and cystatin C levels, most significantly for CKD-EPI with creatinine and/or cystatin C when GFR was greater than 60ml/min/1.73m2. CONCLUSIONS The 2012 CKD-EPI equations with creatinine and/or cystatin C significantly overestimate GFR in stage 1 and 2 chronic kidney disease. The MDRD equations is therefore recommended in these cases. The reference method used to measure GFR seems to heavily influence the bias of the equations.
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Affiliation(s)
| | - Angel Miguel Ramírez Navarro
- Unidad de Gestión Clínica de Medicina Nuclear, Hospital Regional Universitario Virgen de las Nieves, Granada, España
| | - Rafael Esteban de la Rosa
- Unidad de Gestión Clínica de Nefrología, Hospital Regional Universitario Virgen de las Nieves, Granada, España
| | - Juan Antonio Bravo Soto
- Unidad de Gestión Clínica de Nefrología, Hospital Regional Universitario Virgen de las Nieves, Granada, España
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Abstract
Since 1957, over 70 equations based on creatinine and/or cystatin C levels have been developed to estimate glomerular filtration rate (GFR). However, whether these equations accurately reflect renal function is debated. In this Perspectives article, we discuss >70 studies that compared estimated GFR (eGFR) with measured GFR (mGFR), involving ~40,000 renal transplant recipients and patients with chronic kidney disease (CKD), type 2 diabetes mellitus or polycystic kidney disease. Their results show that eGFR often differed from mGFR by ±30% or more, that eGFR values incorrectly staged CKD in 30-60% of patients, and that eGFR and mGFR gave different rates of GFR decline. Errors were unpredictable, and comparable for equations based on creatinine and/or cystatin C. We argue, therefore, that the persistence of these errors (despite intensive research) suggests that the problem lies with using creatinine and/or cystatin C as markers of renal function, rather than with the mathematical methods used for GFR estimation.
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Hu XJ, Zheng J, Li Y, Tian XH, Tian PX, Xiang HL, Pan XM, Ding CG, Ding XM, Xue WJ. Prediction of kidney transplant outcome based on different DGF definitions in Chinese deceased donation. BMC Nephrol 2019; 20:409. [PMID: 31722677 PMCID: PMC6854725 DOI: 10.1186/s12882-019-1557-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/09/2019] [Indexed: 12/03/2022] Open
Abstract
Background Delayed graft function (DGF) is an important complication of kidney transplantation and can be diagnosed according to different definitions. DGF has been suggested to be associated with the long-term outcome of kidney transplantation surgery. However, the best DGF definition for predicting renal transplant outcomes in Chinese donations after cardiac death (DCDs) remains to be determined. Method A total of 372 DCD kidney transplant recipients from June 2013 to July 2017 in the First Affiliated Hospital of Xi’an Jiaotong University were included in this retrospective study to compare 6 different DGF definitions. The relationships of the DGF definitions with transplant outcome were analyzed, including graft loss (GL) and death-censored graft loss (death-censored GL). Renal function indicators, including one-year estimated glomerular filtration rate (eGFR) and three-year eGFR, and were compared between different DGF groups. Results The incidence of DGF varied from 4.19 to 35.22% according to the different DGF diagnoses. All DGF definitions were significantly associated with three-year GL as well as death-censored GL. DGF based on requirement of hemodialysis within the first week had the best predictive value for GL (AUC 0.77), and DGF based on sCr variation during the first 3 days post-transplant had the best predictive value for three-year death-censored GL (AUC 0.79). Combination of the 48-h sCr reduction ratio and classical DGF can improve the AUC for GL (AUC 0.85) as well as the predictive accuracy for death-censored GL (83.3%). Conclusion DGF was an independent risk factor for poor transplant outcome. The combination of need for hemodialysis within the first week and the 48-h serum creatinine reduction rate has a better predictive value for patient and poor graft outcome.
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Affiliation(s)
- Xiao-Jun Hu
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Jin Zheng
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Yang Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xiao-Hui Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Pu-Xun Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - He-Li Xiang
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xiao-Ming Pan
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Chen-Guang Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xiao-Ming Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Wu-Jun Xue
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China. .,Institute of Organ Transplantation, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
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Lam JKJ, Tan SY, Chong KT. Is partial nephrectomy worth performing compared to radical nephrectomy for small, localised renal cortical tumours in geriatric patients? Singapore Med J 2019; 61:190-193. [PMID: 31680178 DOI: 10.11622/smedj.2019136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION This study aimed to evaluate the likelihood of progression to chronic kidney disease (CKD) in a cohort of geriatric Asian patients who underwent either partial nephrectomy (PN) or radical nephrectomy (RN) for localised pT1 kidney tumours. METHODS Geriatric patients aged > 65 years who underwent PN or RN from 2005 to 2014 for localised kidney masses < 7 cm at a single institution were reviewed retrospectively. Preoperative and postoperative estimated glomerular filtration rates (eGFRs) were calculated using the Modification of Diet in Renal Disease Study equation. Clinicopathological data was analysed for new-onset CKD after at least five years of follow-up. Postoperative complications were measured using the modified Clavien classification system. RESULTS Among 67 patients, 36.4% had diabetes mellitus and 80.3% had hypertension. Pre-existing CKD with eGFR ≤ 60 mL/min/1.73 m2 was present in 23.3% of PN and 43.2% of RN patients. RN and PN patients had similar postoperative morbidity. Those who underwent PN had immediate decline followed by gradual improvement of kidney function at six months after surgery. This improvement was sustained even for patients with four years of clinical follow-up. Among patients with normal preoperative kidney function, new-onset CKD after surgery was found in 20.0% and 52.9% of PN and RN patients, respectively (p = 0.007). CONCLUSION In our study, geriatric patients who underwent PN for localised kidney mass < 7 cm had immediate decline but gradual and sustained improvement in kidney function. PN also resulted in less new-onset CKD through a five-year follow-up period.
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Anglicheau D, Tinel C, Canaud G, Loupy A, Zuber J, Delville M, Rabaté C, Scemla A, Snanoudj R, Sberro-Soussan R, Mamzer-Bruneel MF, Bererhi L, Martinez F, Timsit MO, Rabant M, Correas JM, Bienaimé F, Duong JP, Hélénon O, Prié D, Méjean A, Legendre C. [Renal transplantation: Procedure and early follow-up]. Nephrol Ther 2019; 15:469-484. [PMID: 31640943 DOI: 10.1016/j.nephro.2019.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
More than fifty years after the success of the two first renal transplantations in Boston and in Necker hospital in Paris, renal transplantation became the treatment of choice of end stage renal failure, because it improves not only the quality of life of the patients but also their long-term survival. In France, more than 3,700 kidney transplantations are performed every year and more than 40,000 patients are living with a functioning kidney allograft. This treatment of end stage renal disease requires a fine-tuned pre-transplant evaluation and a multidisciplinary post-transplant care in order to prevent, to detect and to treat comorbidities and complications of immunosuppression. The ambition of this manuscript is not to describe in an exhaustive way all the aspects of renal transplantation but starting from the experience of a team, recently published data, and national and international guidelines, to try to provide a synthetic and chronological view of the early post-transplant monitoring.
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Affiliation(s)
- Dany Anglicheau
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France.
| | - Claire Tinel
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Guillaume Canaud
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Alexandre Loupy
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Julien Zuber
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Marianne Delville
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Clémentine Rabaté
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Anne Scemla
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France
| | - Renaud Snanoudj
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France
| | - Rébecca Sberro-Soussan
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France
| | | | - Lynda Bererhi
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France
| | - Frank Martinez
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France
| | - Marc-Olivier Timsit
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service d'urologie, hôpital européen Georges-Pompidou, AP-HP, 20, rue Leblanc, 75015 Paris, France
| | - Marion Rabant
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service d'anatomie pathologique, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Jean-Michel Correas
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de radiologie adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Frank Bienaimé
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service d'exploration fonctionnelle, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Jean-Paul Duong
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service d'anatomie pathologique, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Olivier Hélénon
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de radiologie adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Dominique Prié
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service d'exploration fonctionnelle, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Arnaud Méjean
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service d'urologie, hôpital européen Georges-Pompidou, AP-HP, 20, rue Leblanc, 75015 Paris, France
| | - Christophe Legendre
- Faculté de médecine, université Paris-Descartes, Université de Paris, 75006 Paris, France; Service de néphrologie et transplantation adulte, hôpital Necker, AP-HP, 149, rue de Sèvres, 75015 Paris, France
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Lehner LJ, Kleinsteuber A, Halleck F, Khadzhynov D, Schrezenmeier E, Duerr M, Eckardt KU, Budde K, Staeck O. Assessment of the Kidney Donor Profile Index in a European cohort. Nephrol Dial Transplant 2019; 33:1465-1472. [PMID: 29617898 DOI: 10.1093/ndt/gfy030] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/23/2018] [Indexed: 12/26/2022] Open
Abstract
Background Recently, transplant societies have had to change their allocation policies to counter global organ shortages. However, strategies differ significantly and long-term outcomes and cross-regional applicability remain to be evaluated. Methods Therefore, we retrospectively analysed the Kidney Donor Profile Index (KDPI) of 987 adult kidney transplants at our centre using data from the Organ Procurement and Transplantation Network (OPTN) as a reference. Results In our cohort, the median KDPI was 66%, with a higher proportion of >85% KDPI kidneys compared with the US cohort (32.3% versus 9.2%). Among elderly patients (≥65 years of age), 62% received >95% KDPI kidneys, which were primarily allocated within the Eurotransplant Senior Program (ESP). After 10 years, the rate of death-censored graft survival was 70.5%. Recipients of >85% KDPI kidneys were significantly older, demonstrating higher mortality, poorer graft survival and lower estimated glomerular filtration rate. Patients receiving ≥99% KDPI kidneys had a satisfactory 5-year death-censored graft survival (72.9%). The 5-year survival rate of patients living with a functioning graft exceeded the matched OPTN data in the whole KDPI range, despite a higher proportion of elderly recipients. Multivariate analysis revealed KDPI as an independent risk factor for graft loss (hazard ratio 1.14/10%, P < 0.001), although C-statistics of 0.62 indicated limited discriminative ability for individuals. Conclusion The analysis demonstrated KDPI as a potentially useful tool for donor quality assessment in a European cohort. Most importantly, our analysis revealed acceptable outcomes even for very high KDPI kidneys.
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Affiliation(s)
- Lukas Johannes Lehner
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Kleinsteuber
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Fabian Halleck
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Dmytro Khadzhynov
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Eva Schrezenmeier
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Duerr
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Kai-Uwe Eckardt
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Oliver Staeck
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
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Paquot F, Weekers L, Bonvoisin C, Pottel H, Jouret F. "Acute kidney dysfunction with no rejection" is associated with poor renal outcomes at 2 years post kidney transplantation. BMC Nephrol 2019; 20:249. [PMID: 31288762 PMCID: PMC6617570 DOI: 10.1186/s12882-019-1444-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 07/01/2019] [Indexed: 01/08/2023] Open
Abstract
Background “Acute kidney dysfunction with no rejection” (ADNR) corresponds to acute kidney injury without histological evidence of acute rejection (AR) in kidney transplant recipients (KTR). The prognosis of ADNR is unknown. Methods From 2007 to 2015, we categorized KTR with for-cause kidney biopsy within the first 12 months post kidney transplantation (KTx) into ADNR (n = 93) and biopsy-proven AR (n = 22). Controls (C, n = 135) included KTR with no ADNR or AR within the first 24 months post-KTx. A piecewise linear regression with a single fixed-knot at 12 months served to establish intercepts and slopes of MDRD-eGFR variations from 12 to 24 months. The percentage of KTR with ≥30% reduction of eGFR from 12 to 24 months was calculated as a surrogate marker of future graft loss. Results The median time for for-cause biopsy was 22 [10–70] and 13 [7–43] days for ADNR and AR, respectively. At 12 months, eGFR was significantly higher in C (57.6 ± 14.9 mL/min/1.73m2) vs. ADNR (43.5 ± 15.4 mL/min/1.73m2, p < 0.0001) and vs. AR (46.5 ± 15.2 mL/min/1.73m2, p < 0.0065). The proportion of KTR with ≥30% reduction in eGFR from 12 to 24 months reached 16.3% in C vs. 29.9% in ADNR (p = 0.02) and vs. 15% in AR (not significant). Conclusions ADNR is associated with poor outcomes within 2 years post-KTx.
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Affiliation(s)
- François Paquot
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital, Avenue Hippocrate, 13 - B4000, Liège, Belgium.
| | - Laurent Weekers
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital, Avenue Hippocrate, 13 - B4000, Liège, Belgium
| | - Catherine Bonvoisin
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital, Avenue Hippocrate, 13 - B4000, Liège, Belgium
| | - Hans Pottel
- KU Leuven Kulak, Department of Public Health and Primary Care, University of Leuven, Kortrijk, Belgium
| | - François Jouret
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital, Avenue Hippocrate, 13 - B4000, Liège, Belgium.,Groupe Interdisciplinaire de Génoprotéomique Appliquée, Cardiovascular Sciences, University of Liège, Liège, Belgium
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Thongprayoon C, Acharya P, Aeddula NR, Torres-Ortiz A, Bathini T, Sharma K, Ungprasert P, Watthanasuntorn K, Suarez MLG, Salim SA, Kaewput W, Chenbhanich J, Mao MA, Cheungpasitporn W. Effects of denosumab on bone metabolism and bone mineral density in kidney transplant patients: a systematic review and meta-analysis. Arch Osteoporos 2019; 14:35. [PMID: 30852679 DOI: 10.1007/s11657-019-0587-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 03/04/2019] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The use of immunosuppressive agents, especially glucocorticoids, are associated with increased risks of bone loss in kidney transplant patients. Denosumab, a potent antiresorptive agent, has been shown to increase bone mineral density (BMD) in patients with CKD. However, its effects on bone metabolism and BMD in kidney transplant patients remain unclear. METHODS A literature search was conducted using MEDLINE, EMBASE, and Cochrane Database from inception through April 2018 to identify studies evaluating denosumab's effect on changes in bone metabolism and BMD from baseline to post-treatment course in kidney transplant patients. Study results were pooled and analyzed utilizing random-effects model. The protocol for this systematic review is registered with PROSPERO (International Prospective Register of Systematic Reviews; no. CRD42018095055). RESULTS Five studies (a clinical trial and four cohort studies) with a total of 162 kidney transplant patients were identified. The majority of patients had a baseline eGFR ≥ 30 mL/min/1.73 m2. After treatment (≥ 6 to 12 months), there were significant increases in BMD with standardized mean differences (SMDs) of 3.26 (95% CI 0.88-5.64) and 1.83 (95% CI 0.43 to 3.22) for lumbar spine and femoral neck, respectively. There were also significant increases in T scores with SMDs of 0.92 (95% CI 0.58 to 1.25) and 1.14 (95% CI 0.17 to 2.10) for lumbar spine and femoral neck, respectively. After treatment, there were no significant changes in serum calcium (Ca) or parathyroid hormone (PTH) from baseline to post-treatment course (≥ 6 months) with mean differences (MDs) of 0.52 (95% CI, - 0.13 to 1.16) mmol/L and - 13.24 (95% CI, - 43.85 to 17.37) ng/L, respectively. The clinical trial data demonstrated more asymptomatic hypocalcemia in the denosumab (12 episodes in 39 patients) than in the control (1 episode in 42 patients) group. From the cohort studies, the pooled incidence of hypocalcemia following denosumab treatment was 1.7% (95% CI 0.4 to 6.6%). All reported hypocalcemic episodes were mild and asymptomatic, but the majority of patients required Ca and vitamin D supplements. CONCLUSION Among kidney transplant patients with good allograft function, denosumab effectively increases BMD and T scores in the lumbar spine and femur neck. From baseline to post-treatment, there are no differences in serum Ca and PTH. However, mild hypocalcemia can occur following denosumab treatment, requiring monitoring and titration of Ca and vitamin D supplements.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Prakrati Acharya
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Narothama Reddy Aeddula
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine and Deaconess Health System, Evansville, IN, USA
| | - Aldo Torres-Ortiz
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Tarun Bathini
- Department of Internal Medicine, University of Arizona, Tucson, AZ, USA
| | - Konika Sharma
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - Patompong Ungprasert
- Clinical Epidemiology Unit, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Maria Lourdes Gonzalez Suarez
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Sohail Abdul Salim
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Wisit Kaewput
- Department of Military and Community Medicine, Phramongkutklao College of Medicine, Bangkok, Thailand
| | - Jirat Chenbhanich
- Department of Internal Medicine, Metrowest Medical Center, Framingham, MA, USA
| | - Michael A Mao
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Wisit Cheungpasitporn
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA.
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44
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Erpicum P, Weekers L, Detry O, Bonvoisin C, Delbouille MH, Grégoire C, Baudoux E, Briquet A, Lechanteur C, Maggipinto G, Somja J, Pottel H, Baron F, Jouret F, Beguin Y. Infusion of third-party mesenchymal stromal cells after kidney transplantation: a phase I-II, open-label, clinical study. Kidney Int 2019; 95:693-707. [DOI: 10.1016/j.kint.2018.08.046] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 07/25/2018] [Accepted: 08/23/2018] [Indexed: 02/08/2023]
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45
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Angeloni E, Melina G, Federici F, Pischedda F, Vignaroli W, Rocco M, Sinatra R. Preliminary results of the Multicenter Observational Study with Enoximone in Cardiac surgery (MOSEC). Int J Cardiol 2018; 269:51-55. [PMID: 30037630 DOI: 10.1016/j.ijcard.2018.07.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/04/2018] [Accepted: 07/13/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Perioperative administration of Enoximone has been shown to improve hemodynamics, organ function, and inflammatory response. Aim of the present study was to evaluate the effects of Enoximone after on-pump cardiac surgery. METHODS A protocol for a multicenter observational study was reviewed and approved by local ethic committee. This preliminary report involves the first 29 patients enrolled, in whom Enoximone was perioperatively administered in the context of on-pump cardiac surgery. All patients enrolled were propensity-matched 1:1 with controls not receiving Enoximone, renal function was evaluated in terms of estimated glomerular filtration rate (eGFR) with the CKD-EPI equation. RESULTS After propensity matching, the two cohorts of patients receiving Enoximone or not did not show any significant differences among baseline characteristics. Patients receiving Enoximone showed a progressive improvement of eGFR at each time-point of follow-up: roughly +4.3, +10.0, and +12.3 mL/min/1.73 m2 on postoperative days 2, 7, and 30; respectively. Consistently, maximum difference versus baseline was +12.6 mL/min/1.73 m2 (or +19.3%) among Enoximone patients vs +3.3 mL/min/1.73 m2 (or +4.4%) among controls (p = 0.02). Multivariable regression analysis (R2-adjusted 0.47) showed only age (β -0.53; p = 0.01), preoperative eGFR (β -0.39; p = 0.02), diabetes (β 2.1; p = 0.01), cardio-pulmonary bypass duration (β 0.08; p = 0.05), and Enoximone administration (β -0.74; p = 0.05) to be independently correlated with delta eGFR variation on day 30. CONCLUSION These preliminary results show that perioperative Enoximone administration improved renal function in patients undergoing on-pump cardiac surgery. Further studies are needed to confirm these findings.
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Affiliation(s)
- Emiliano Angeloni
- Department of Cardiac Surgery, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy.
| | - Giovanni Melina
- Department of Cardiac Surgery, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy
| | - Francesco Federici
- Department of Anaesthesiology, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy
| | - Francesca Pischedda
- Department of Anaesthesiology, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy
| | - Walter Vignaroli
- Department of Cardiac Surgery, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy
| | - Monica Rocco
- Department of Anaesthesiology, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy
| | - Riccardo Sinatra
- Department of Cardiac Surgery, Sapienza University of Rome, Policlinico Sant'Andrea, Roma, Italy
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46
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Krezdorn N, Tasigiorgos S, Wo L, Lopdrup R, Turk M, Kiwanuka H, Ahmed S, Petruzzo P, Bueno E, Pomahac B, Riella LV. Kidney Dysfunction After Vascularized Composite Allotransplantation. Transplant Direct 2018; 4:e362. [PMID: 30046652 PMCID: PMC6056276 DOI: 10.1097/txd.0000000000000795] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 03/26/2018] [Accepted: 04/02/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Kidney dysfunction is a major complication after nonrenal solid organ transplants. Transplantation of vascularized composite allografts (VCA) has yielded successful midterm outcomes despite high rates of acute rejection and greater requirements of immunosuppression. Whether this translates in higher risks of kidney complications is unknown. METHODS Ninety-nine recipients of facial or extremity transplants from the Brigham and Women's Hospital (BWH) and the International Registry on Hand and Composite Tissue Transplantation (IR) were reviewed. We assessed immunosuppression, markers of renal function over time, as well as pretransplant and posttransplant renal risk factors. RESULTS Data were obtained from 10 patients from BWH (age at transplant, 42.5 ± 13.8 years) and 89 patients (37.8 ± 11.5 years) from IR. A significant rise in creatinine levels (BWH, P = 0.0195; IR, P < 0.0001) and drop in estimated glomerular filtration rate (GFR) within the first year posttransplant was observed. The BWH and IR patients lost a mean of 22 mL/min GFR and 60 mL/min estimated GFR in the first year, respectively. This decrease occurred mostly in the first 6 months posttransplant (BWH). Pretransplant creatinine levels were not restored in either cohort. A mixed linear model identified multiple variables correlating with renal dysfunction, particularly tacrolimus trough levels. CONCLUSIONS Kidney dysfunction represents a major complication posttransplantation in VCA recipients early on. Strategies to mitigate this complication, such as reducing calcineurin inhibitor trough levels or using alternative immunosuppressive agents, may improve long-term patient outcomes. Standardizing laboratory and data collection of kidney parameters and risk factors in VCA patients will be critical for better understanding of this complication.
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Affiliation(s)
- Nicco Krezdorn
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Sotirios Tasigiorgos
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Luccie Wo
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Rachel Lopdrup
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Marvee Turk
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Harriet Kiwanuka
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Salman Ahmed
- Transplantation Research Center, Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA
| | - Palmina Petruzzo
- Department of Transplantation, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
- Department of Surgery, University of Cagliari, Cagliari, Italy
| | - Ericka Bueno
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Bohdan Pomahac
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Leonardo V. Riella
- Transplantation Research Center, Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA
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Heldal K, Midtvedt K, Hartmann A, Reisaeter AV, Heldal TF, Bergan S, Salvador CL, Åsberg A. Estimated glomerular filtration rate in stable older kidney transplant recipients-are present algorithms valid? A national cross-sectional cohort study. Transpl Int 2018; 31:629-638. [PMID: 29453878 DOI: 10.1111/tri.13137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/05/2018] [Accepted: 02/12/2018] [Indexed: 12/23/2022]
Abstract
Several equations have been developed for estimated glomerular filtration rate (eGFR) in patients with chronic kidney disease (CKD), but none were developed based on data from elderly kidney transplant recipients (KTR). The primary aim of this study was to evaluate different creatinine-based equations in stable elderly KTR. A national cross-sectional study was performed using data from 263 consecutive kidney transplant recipients 60 years or older who performed a routine GFR measurement one year after engraftment. GFR was measured by iohexol clearance calculation based on two samples. eGFR was calculated from a range of different creatinine-based equations using information obtained at the time of GFR measurement. Bias, precision, and accuracy were evaluated for each equation. All equations apart from Nankivell had accuracy (P30) > 80%. The BIS1, FAS, LMRCR , and Cockcroft & Gault equations in recipients older than 70 years and the FAS, LMRCR , and MDRD in recipients 60-69 years old had nonsignificant bias. The CKD-EPI had significant bias in both groups. If one should choose a single equation for follow-up of individual CKD progression in all recipients ≥ 60 years, the FAS or LMRCR equations are probably the best alternatives.
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Affiliation(s)
- Kristian Heldal
- Clinic of Internal Medicine, Telemark Hospital Trust, Skien, Norway.,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway
| | - Karsten Midtvedt
- Department of Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway
| | - Anders Hartmann
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway
| | - Anna Varberg Reisaeter
- Department of Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway
| | - Torbjørn F Heldal
- Department of Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Stein Bergan
- Department of Pharmacology, Oslo University Hospital, Oslo, Norway.,School of Pharmacy, Department of Pharmaceutical Biosciences, University of Oslo, Oslo, Norway
| | - Cathrin L Salvador
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
| | - Anders Åsberg
- Department of Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway.,School of Pharmacy, Department of Pharmaceutical Biosciences, University of Oslo, Oslo, Norway
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48
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Schachtner T, Zaks M, Otto NM, Kahl A, Reinke P. Factors and outcomes in association with sepsis differ between simultaneous pancreas/kidney and single kidney transplant recipients. Transpl Infect Dis 2018; 20:e12848. [PMID: 29359836 DOI: 10.1111/tid.12848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 08/29/2017] [Accepted: 09/24/2017] [Indexed: 12/28/2022]
Abstract
BACKGROUND As immunosuppressive therapy has improved in simultaneous pancreas/kidney transplant recipients (SPKTRs), infection has become the major limitation of disease-free survival. METHODS We studied all SPKTRs and deceased-donor kidney transplant recipients (KTRs) between 2003 and 2015. Thirty-six of 134 SPKTRs (26.9%) were diagnosed with sepsis among which 13/36 SPKTRs (36.1%) developed severe sepsis/septic shock. A control group of 98 SPKTRs without sepsis and 61/538 KTRs (11.3%) with sepsis were used for comparison. RESULTS Among SPKTRs, female sex, low BMI, CMV seronegativity, CMV disease, and acute cellular rejection increased the risk for sepsis (P < .05). Patient and allograft survival was comparable among SPKTRs with and without sepsis (P > .05), but showed inferior kidney allograft function (P < .05). While urosepsis was less common among SPKTRs (45%), pneumonia (33%) and peritonitis (15%) as site of infections were more frequent (P < .05). Here, gram-positive and fungal sepsis were more common among SPKTRs compared to KTRs (P < .05). SPKTRs showed a higher incidence and an earlier onset of sepsis compared to KTRs (P < .001). SPKTRs with severe sepsis/septic shock were more likely to show pneumonia as site of infection with gram-positive/polymicrobial bacteremia (P < .05). Mortality from severe sepsis was 29% among SPKTRs compared to 58% among KTRs (P < .05). CONCLUSION Differences in incidence, site, causative pathogens, and onset of sepsis between SPKTRs and KTRs may be attributed to more intense immunosuppression, major surgery, and complications of diabetes among SPKTRs. Lower sepsis-related mortality may reflect younger age and more timely diagnosis, but also supports recent findings of less sepsis-related mortality among recipients of solid organ transplantation.
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Affiliation(s)
- Thomas Schachtner
- Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Campus Virchow Clinic, Berlin, Germany.,Berlin-Brandenburg Center of Regenerative Therapies (BCRT), Berlin, Germany.,Berlin Institute of Health (BIH), Charité und Max-Delbrück Center, Berlin, Germany
| | - Marina Zaks
- Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Campus Virchow Clinic, Berlin, Germany
| | - Natalie M Otto
- Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Campus Virchow Clinic, Berlin, Germany
| | - Andreas Kahl
- Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Campus Virchow Clinic, Berlin, Germany
| | - Petra Reinke
- Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Campus Virchow Clinic, Berlin, Germany.,Berlin-Brandenburg Center of Regenerative Therapies (BCRT), Berlin, Germany
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Niwa N, Yoshida T, Mizuno R, Kikuchi E, Miyajima A, Hayashi M, Oya M. Pre-operative and post-operative estimated glomerular filtration rate in Japanese patients with urological malignancies. Clin Exp Nephrol 2017; 22:1205-1212. [PMID: 29181660 DOI: 10.1007/s10157-017-1509-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 11/15/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUND The suitable methods evaluating glomerular filtration rate (GFR) have not been established in patients undergoing radical nephrectomy (RN) or radical nephroureterectomy (RNU) due to urological malignancies in Japan as well as worldwide. METHODS We examined the relationship between creatinine clearance-based measured GFR (mGFR) versus estimated GFR (eGFR) calculated by 3 popular equations, 4-variable Modification of Diet in Renal Disease equation adjusted by Japanese correction coefficient (cmMDRD), 3-variable MDRD equation for Japanese population (eGFRcreat), and Chronic Kidney Disease-Epidemiology Collaboration equation adjusted by Japanese correction coefficient (cmCKD-EPI) in Japanese patients who had undergone RN or RNU due to renal cell carcinoma or upper tract urothelial carcinoma before and after surgery. RESULTS Among the 3 equations examined, eGFRcreat was the closest to mGFR, although each eGFR was significantly higher than mGFR in the pre-operative period. In the post-operative period, cmMDRD and eGFRcreat, but not cmCKD-EPI, were comparable to mGFR. Each of eGFR was significantly correlated with mGFR in both the pre-operative and post-operative periods. Similar results were obtained by the subanalysis of the patients with pre-operative mGFR of < 60 mL/min/1.73 m2. Results of κ statistics also showed that eGFRcreat was most appropriate to estimate GFR both before and after heminephrectomy, when cut-off value of GFR of < 60 mL/min/1.73 m2 was used. CONCLUSION Results of the present study suggest that eGFRcreat is likely to be the most appropriate equation for patients undergoing RN or RNU due to urological malignancies. However, more precise equations will be required for accurately estimating GFR.
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Affiliation(s)
- Naoya Niwa
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Tadashi Yoshida
- Apheresis and Dialysis Center, Keio University School of Medicine, 35, Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Department of General Medicine, Keio University School of Medicine, Tokyo, Japan.
| | - Ryuichi Mizuno
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Eiji Kikuchi
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Akira Miyajima
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Matsuhiko Hayashi
- Apheresis and Dialysis Center, Keio University School of Medicine, 35, Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of General Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
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50
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Estimating Glomerular Filtration Rate in Kidney Transplant Recipients: Comparing a Novel Equation With Commonly Used Equations in this Population. Transplant Direct 2017. [PMID: 29536033 PMCID: PMC5828695 DOI: 10.1097/txd.0000000000000742] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Background Assessment of glomerular filtration rate (GFR) is important in kidney transplantation. The aim was to develop a kidney transplant specific equation for estimating GFR and evaluate against published equations commonly used for GFR estimation in these patients. Methods Adult kidney recipients (n = 594) were included, and blood samples were collected 10 weeks posttransplant. GFR was measured by 51Cr-ethylenediaminetetraacetic acid clearance. Patients were randomized into a reference group (n = 297) to generate a new equation and a test group (n = 297) for comparing it with 7 alternative equations. Results Two thirds of the test group were males. The median (2.5-97.5 percentile) age was 52 (23-75) years, cystatin C, 1.63 (1.00-3.04) mg/L; creatinine, 117 (63-220) μmol/L; and measured GFR, 51 (29-78) mL/min per 1.73 m2. We also performed external evaluation in 133 recipients without the use of trimethoprim, using iohexol clearance for measured GFR. The Modification of Diet in Renal Disease equation was the most accurate of the creatinine-equations. The new equation, estimated GFR (eGFR) = 991.15 × (1.120sex/([age0.097] × [cystatin C0.306] × [creatinine0.527]); where sex is denoted: 0, female; 1, male, demonstrating a better accuracy with a low bias as well as good precision compared with reference equations. Trimethoprim did not influence the performance of the new equation. Conclusions The new equation demonstrated superior accuracy, precision, and low bias. The Modification of Diet in Renal Disease equation was the most accurate of the creatinine-based equations.
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