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Noordzij M, Meijers B, Gansevoort RT, Covic A, Duivenvoorden R, Hilbrands LB, Hemmelder MH, Jager KJ, Mjoen G, Nistor I, Parshina E, Pessolano G, Tuglular S, Vart P, Zanoli L, Franssen CFM, van der Net JB, Essig M, du Buf-Vereijken PWG, van Ginneken B, Maas N, van Jaarsveld BC, Bemelman FJ, Klingenberg-Salahova F, Vervloet MG, Nurmohamed A, Vogt L, Abramowicz D, Verhofstede S, Maoujoud O, Malfait T, Fialova J, Lips J, Hengst M, Konings C, Rydzewski A, Oliveira J, Zakharova EV, Lepeytre F, Rabaté C, Rostoker G, Marques S, Azasevac T, Majstorovic GS, Fricke L, Slebe JJP, ElHafeez SA, El-Wakil HS, Verhoeven M, Logan I, Panagoutsos S, Mallamaci F, Postorino A, Cambareri F, Matceac I, Groeneveld JHM, Jousma J, van Buren M, Pereira TA, Arias-Cabrales C, Crespo M, Llinàs-Mallol L, Buxeda A, Tàrrega CB, Redondo-Pachon D, Jimenez MDA, Mendoza-Valderrey A, Martins AC, Mateus C, Alvila G, Laranjinha I, Arroyo D, Castellano S, Rodríguez-Ferrero ML, Lemahieu W, Dirim AB, Demir E, Sever MS, Turkmen A, Şafak S, Hollander DAMJ, Büttner S, Sridharan S, van der Sande FM, Christiaans MHL, Luca MD, Beerenhout C, Adema AY, Stepanov VA, Zulkarnaev AB, Turkmen K, Fliedner A, Åsberg A, Pini S, de Biase C, Kerckhoffs A, van de Logt AE, Maas R, Lebedeva O, Reichert LJM, Verhave J, Marcantoni C, van Gils-Verrij LEA, Battaglia Y, Lentini P, Cabezas-Reina CJ, Roca AM, Nauta F, Goffin E, Kanaan N, Labriola L, Devresse A, Coca A, Naesens M, Kuypers D, Desschans B, Dedinska I, Malik S, Berger SP, Sanders JSF, Özyilmaz A, Ponikvar JB, Pernat AM, Kovac D, Arnol M, Abrahams AC, Molenaar FM, van Zuilen AD, Meijvis SCA, Dolmans H, Esposito P, Krzesinski JM, Barahira JD, Gallieni M, Guglielmetti G, Guzzo G, Luik AJ, van Kuijk WHM, Stikkelbroeck LWH, Hermans MMH, Rimsevicius L, Righetti M, Islam M, Heitink-ter Braak N. Strategies to prevent SARS-CoV-2 transmission in hemodialysis centres across Europe - Lessons for the future. Clin Kidney J 2022; 16:662-675. [PMID: 37007687 PMCID: PMC10061429 DOI: 10.1093/ckj/sfac253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Indexed: 12/04/2022] Open
Abstract
Abstract
Background
Early reports on the pandemic nature of COVID-19 directed the nephrology community to develop infection prevention and control guidance. We aimed to make an inventory of strategies that dialysis centres followed to prevent infection with COVID-19 in the first pandemic wave.
Methods
We analyzed IPC measures taken by hemodialysis centres treating patients presenting with COVID-19 between March 1, 2020 and July 31, 2020 and that completed the European Renal Association COVID-19 Database centre questionnaire. Additionally, we made an inventory of guidelines published in European countries to prevent spread of SARS-CoV-2 in dialysis centres.
Results
Data from 73 dialysis units located in and bordering Europe were analyzed. All participating centres implemented IPC measures to mitigate the impact of SARS-CoV-2 during the first pandemic wave. Measures mentioned most often included triage with questions before entering the dialysis ward, measuring body temperature, hand disinfection, masking for all patients and staff, and personal protective equipment for staff members. These measures were also recommended in most of the 14 guidelines that were identified in the inventory of national guidelines and were also scored as being among the most important measures by the authors of this paper. Heterogeneity existed between centres and national guidelines regarding the minimal distance between dialysis chairs and recommendations regarding isolation and cohorting.
Conclusions
Although variation existed, measures to prevent transmission of SARS-CoV-2 were relatively similar across centres and national guidelines. Further research is needed to assess causal relationships between measures taken and spread of SARS-CoV-2.
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Affiliation(s)
- Marlies Noordzij
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - Björn Meijers
- Department of Nephrology , UZ Leuven, Leuven , , Immunology and Transplantation, KU Leuven, Leuven , Belgium
- Belgium and Department of Microbiology , UZ Leuven, Leuven , , Immunology and Transplantation, KU Leuven, Leuven , Belgium
| | - Ron T Gansevoort
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - Adrian Covic
- Grigore T Popa University of Medicine and Pharmacy , Iasi , , Iasi , Romania
- Romania / Dr Ci Parhon Hospital , Iasi , , Iasi , Romania
| | - Raphaël Duivenvoorden
- Department of Nephrology, Radboud University Medical Center , Nijmegen , The Netherlands
| | - Luuk B Hilbrands
- Department of Nephrology, Radboud University Medical Center , Nijmegen , The Netherlands
| | - Marc H Hemmelder
- Dept. of Internal Medicine, Div. of Nephrology, Maastricht University Medical Center / CARIM school for cardiovascular disease, University of Maastricht , Maastricht , The Netherlands
| | - Kitty J Jager
- ERA Registry, Amsterdam UMC location University of Amsterdam , Medical Informatics, Amsterdam , The Netherlands
- Amsterdam Public Health Research Institute , Quality of Care, Amsterdam , The Netherlands
| | - Geir Mjoen
- Department of Transplantation, Oslo University Hospital , Norway
| | - Ionut Nistor
- Grigore T Popa University of Medicine and Pharmacy , Iasi , , Iasi , Romania
- Romania / Dr Ci Parhon Hospital , Iasi , , Iasi , Romania
| | - Ekaterina Parshina
- Nephrology and Dialysis Department, Saint Petersburg State University Hospital , Saint-Petersburg, Russia
| | - Giuseppina Pessolano
- Division of Nephrology , Azienda Ospedaliera Universitaria Integrata Verona, Italy
| | - Serhan Tuglular
- Medical Faculty, Department of Internal Medicine, Marmara University , Istanbul , Turkey
| | - Priya Vart
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
- Department of Clinical Pharmacy & Pharmacology, University Medical Center Groningen, University of Groningen , The Netherlands
| | - Luca Zanoli
- Nephrology and dialysis, San Marco Hospital, University of Catania , Catania , Italy
| | - Casper F M Franssen
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
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Rostoker G, Lepeytre F, Merzoug M, Griuncelli M, Loridon C, Boulahia G, Cohen Y. Differential Pharmacokinetics of Liver Tropism for Iron Sucrose, Ferric Carboxymaltose, and Iron Isomaltoside: A Clue to Their Safety for Dialysis Patients. Pharmaceutics 2022; 14:pharmaceutics14071408. [PMID: 35890303 PMCID: PMC9323124 DOI: 10.3390/pharmaceutics14071408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 01/31/2023] Open
Abstract
Anemia is a major complication of end-stage kidney disease (ESKD). Erythropoiesis-stimulating agents and intravenous (IV) iron are the current backbone of anemia treatment in ESKD. Iron overload induced by IV iron is a potential clinical problem in dialysis patients. We compared the pharmacokinetics of liver accumulation of iron sucrose, currently used worldwide, with two third-generation IV irons (ferric carboxymaltose and iron isomaltoside). We hypothesized that better pharmacokinetics of newer irons could improve the safety of anemia management in ESKD. Liver iron concentration (LIC) was analyzed in 54 dialysis patients by magnetic resonance imaging under different modalities of iron therapy. LIC increased significantly in patients treated with 1.2 g or 2.4 g IV iron sucrose (p < 0.001, Wilcoxon test), whereas no significant increase was observed in patients treated with ferric carboxymaltose or iron isomaltoside (p > 0.05, Wilcoxon-test). Absolute differences in LIC reached 25 μmol/g in the 1.2 g iron sucrose group compared with only 5 μmol/g in the 1 g ferric carboxymaltose and 1 g iron isomaltoside groups (p < 0.0001, Kruskal−Wallis test). These results suggest the beneficial consequences of using ferric carboxymaltose or iron isomaltoside on liver structure in ESKD due to their pharmacokinetic ability to minimize iron overload.
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Affiliation(s)
- Guy Rostoker
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France; (F.L.); (M.M.); (M.G.); (C.L.); (G.B.)
- Collége de Médecine des Hôpitaux de Paris, 75005 Paris, France
- Correspondence: ; Tel.: +33-1-69-39-92-00
| | - Fanny Lepeytre
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France; (F.L.); (M.M.); (M.G.); (C.L.); (G.B.)
| | - Myriam Merzoug
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France; (F.L.); (M.M.); (M.G.); (C.L.); (G.B.)
| | - Mireille Griuncelli
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France; (F.L.); (M.M.); (M.G.); (C.L.); (G.B.)
| | - Christelle Loridon
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France; (F.L.); (M.M.); (M.G.); (C.L.); (G.B.)
| | - Ghada Boulahia
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France; (F.L.); (M.M.); (M.G.); (C.L.); (G.B.)
| | - Yves Cohen
- Division of Radiology, Ramsay Santé, Hôpital Privé Claude Galien, 91480 Quincy-Sous-Sénart, France;
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Vart P, Jager KJ, Arnol M, Duivenvoorden R, Franssen CFM, Groeneveld M, Hemmelder MH, Lepeytre F, Malfait T, Midtvedt K, Mitra S, Facundo C, Noordzij M, Reina CC, Safak S, Toapanta N, Hilbrands LB, Gansevoort RT. COVID-19 pandemic waves and mortality among patients on kidney replacement therapy. Kidney Int Rep 2022; 7:2091-2096. [PMID: 35757188 PMCID: PMC9213008 DOI: 10.1016/j.ekir.2022.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 05/18/2022] [Accepted: 06/06/2022] [Indexed: 02/07/2023] Open
Affiliation(s)
- Priya Vart
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.,Department of Clinical Pharmacy & Pharmacology, University Medical Center Groningen, Groningen, the Netherlands
| | - Kitty J Jager
- ERA Registry, Department of Medical Informatics, Amsterdam University Medical Center, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Miha Arnol
- Department of Nephrology, University Medical Center Ljubljana; Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Raphaël Duivenvoorden
- Department of Nephrology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Casper F M Franssen
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Marc H Hemmelder
- Division on Nephrology, Department of Internal Medicine, Maastricht University Medical Centre; CARIM school for cardiovascular research, University Maastricht, Maastricht, Netherlands
| | - Fanny Lepeytre
- Claude Galien Hospital Ramsay santé, Quincy-sous-Sénart, France
| | | | - Karsten Midtvedt
- Department of Transplantation Medicine, Oslo University Hospital - Rikshospitalet, Olso, Norway
| | - Sandip Mitra
- Department of Renal Medicine, Manchester University Hospitals, Manchester Academy of Health Sciences Centre, University of Manchester, UK
| | | | - Marlies Noordzij
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Seda Safak
- Division on Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | | | - Luuk B Hilbrands
- Department of Nephrology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ron T Gansevoort
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Vart P, Jager KJ, Arnol M, Duivenvoorden R, Franssen CFM, Groeneveld M, Hemmelder MH, Lepeytre F, Malfait T, Midtvedt K, Mitra S, Facundo C, Noordzij M, Reina CC, Safak S, Toapanta N, Hilbrands LB, Gansevoort RT. MO495: A Comparative Study of Patient Mortality During First and Second Waves of Covid-19 Pandemic in Dialysis Patients and Kidney Transplant Recipients. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac071.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Patients on kidney replacement therapy (KRT) are at a particularly high risk of mortality from COVID-19. In this study, we investigated COVID-19 mortality in KRT patients in the first and second waves of the pandemic and potential reasons for any difference in mortality between the two waves.
METHOD
Data from the European Renal Association COVID-19 Database (ERACODA) of KRT patients who presented between 1 March 2020 and 28 February 2021 with COVID-19 were analyzed. The cut-off for dividing the first and second waves was set for 1 August 2020. The primary study outcome was 28-day mortality. Multivariable Cox proportional-hazards regression analysis was used to examine the relationship between the pandemic waves and mortality with follow-up time starting at the date of presentation. Dialysis patients and kidney transplant recipients were analyzed separately.
RESULTS
Among 3004 dialysis patients (1253 in the first and 1751 in the second wave), the 28-day mortality was 24.3% in the first wave and 19.6% in the second wave (P = .002). Compared with the first wave, in the second wave, identification of patients with limited to no symptoms was higher (14.3% versus 24.8%; P < .001), hospitalization was lower (71.3% versus 44.3%; P < .001), but in-hospital mortality was similar (30.4% versus 30.7%; P = .92) (Fig. 1). Crude hazard ratio (HR) for 28-day mortality in the second wave was 0.77 (95% CI: 0.66, 0.89). However, in a fully adjusted model, when correcting for differences in patient and disease characteristics, including the reason for COVID-19 screening and disease severity, the HR for mortality in the second wave was 0.93 [95% confidence interval (95% CI): 0.79–1.10]. When follow-up was chosen to start at the date of first symptoms to account for possible lead-time bias, crude HR for 28-day mortality in the second wave was 0.90 (95% CI: 0.75–1.07) and the fully adjusted HR was 0.98 (95% CI: 0.81–1.18). Among 1035 kidney transplant recipients (475 in the first and 560 in the second wave), results were essentially similar except that patients in the second wave were younger (55.6 years versus 58.2 years; P = .002), and crude HR for 28-day mortality from the date of first symptoms was 0.66 (95% CI: 0.47–0.93), whereas the fully adjusted HR was 1.02 (95% CI: 0.70–1.49).
CONCLUSION
Among patients on KRT with COVID-19, 28-day mortality rates were lower in the second wave compared with the first wave. However, a greater proportion of patients with minimal symptoms, lead-time bias in dialysis patients, and younger age in kidney transplant recipients possibly explain the lower mortality during the second wave. Any improvement in patient management during the second wave may not be the main reason for lower mortality.
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Affiliation(s)
- Priya Vart
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Clinical Pharmacy & Pharmacology, University Medical Center Groningen, Groningen, Netherlands
| | - Kitty J Jager
- ERA Registry, Department of Medical Informatics, Amsterdam University Medical Center, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Miha Arnol
- Department of Nephrology, University Medical Center Ljubljana, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | | | - Casper F M Franssen
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | | | - Marc H Hemmelder
- Division on Nephrology, Department of Internal Medicine, Maastricht University Medical Centre, CARIM school for cardiovascular research, University Maastricht, Maastricht, Netherlands
| | - Fanny Lepeytre
- Claude Galien Hospital Ramsay santé, Quincy-sous-Sénart, France
| | | | - Karsten Midtvedt
- Department of Transplantation Medicine, Oslo University Hospital Rikshospitalet, Olso, Norway
| | - Sandip Mitra
- Department of Renal Medicine, Manchester University Hospitals, Manchester Academy of Health Sciences Centre, University of Manchester, UK
| | | | - Marlies Noordzij
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | | | - Seda Safak
- Division on Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | | | - Luuk B Hilbrands
- Department of Nephrology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Ron T Gansevoort
- Department Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Rostoker G, Lepeytre F, Rottembourg J. Inflammation, Serum Iron, and Risk of Mortality and Cardiovascular Events in Nondialysis CKD Patients. J Am Soc Nephrol 2022; 33:654-655. [PMID: 35046130 PMCID: PMC8975073 DOI: 10.1681/asn.2021081044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Guy Rostoker
- Division of Nephrology and Dialysis, Ramsay Santé, Claude Galien Hospital, Quincy-sous-Sénart, France .,Collège de Médecine des Hôpitaux de Paris, Paris, France
| | - Fanny Lepeytre
- Division of Nephrology and Dialysis, Ramsay Santé, Claude Galien Hospital, Quincy-sous-Sénart, France
| | - Jacques Rottembourg
- Division of Nephrology, Dialysis and Transplantation, Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris, France
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Rostoker G, Senet P, Lepeytre F, Griuncelli M, Loridon C, Rabaté C, Cohen Y. Analysis of liver iron concentration in an elderly female undergoing hemodialysis with calcific uremic arteriolopathy does not support the role of iron overload in calciphylaxis: lesson for the clinical nephrologist. J Nephrol 2021; 34:1547-1551. [PMID: 33484427 PMCID: PMC8494698 DOI: 10.1007/s40620-020-00904-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/04/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Guy Rostoker
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France.
- Collège de Médecine des Hôpitaux de Paris, 10 Rue des Fossés Saint-Marcel, 75005, Paris, France.
- Service de Néphrologie et de Dialyse, Ramsay Santé, HP Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France.
| | - Patricia Senet
- Division of Dermatology and Allergology, Assistance Publique Hôpitaux de Paris, Hôpital Tenon, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France
| | - Fanny Lepeytre
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France
| | - Mireille Griuncelli
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France
| | - Christelle Loridon
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France
| | - Clémentine Rabaté
- Division of Nephrology and Dialysis, Ramsay Santé, Hôpital Privé Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France
| | - Yves Cohen
- Division of Radiology, Ramsay Santé, Hôpital Privé Claude Galien, 20 Route de Boussy-Saint-Antoine, 91480, Quincy-Sous-Sénart, France
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Lepeytre F, Delmas-Frenette C, Zhang X, Larivière-Beaudoin S, Sapir-Pichhadze R, Foster BJ, Cardinal H. Donor Age, Donor-Recipient Size Mismatch, and Kidney Graft Survival. Clin J Am Soc Nephrol 2020; 15:1455-1463. [PMID: 32843375 PMCID: PMC7536765 DOI: 10.2215/cjn.02310220] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/27/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Small donor and/or kidney sizes relative to recipient size are associated with a higher risk of kidney allograft failure. Donor and recipient ages are associated with graft survival and may modulate the relationship between size mismatch and the latter. The aim of this study was to determine whether the association between donor-recipient size mismatch and graft survival differs by donor and recipient age. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENT We performed a retrospective cohort study of first adult deceased donor kidney transplantations performed between 2000 and 2018 recorded in the Scientific Registry of Transplant Recipients. We used multivariable Cox proportional hazards models to assess the association between donor-recipient body surface area ratio and death-censored graft survival, defined as return to dialysis or retransplantation. We considered interactions between donor-recipient body surface area ratio and each of recipient and donor age. RESULTS Among the 136,321 kidney transplant recipients included in this study, 23,614 (17%) experienced death-censored graft loss over a median follow-up of 4.3 years (interquartile range, 1.9-7.8 years). The three-way donor-recipient body surface area ratio by donor age by recipient age interaction was statistically significant (P=0.04). The magnitude of the association between severe size mismatch (donor-recipient body surface area ratio <0.80 versus ≥1.00) and death-censored graft survival was stronger with older donor age and recipient age. In all recipient age categories except the youngest (18-30 years), 5- and 10-year graft survival rates were similar or better with a size-mismatched donor aged <40 years than a nonsize-mismatched donor aged 40 years or older. CONCLUSIONS The association of donor-recipient size mismatch on long-term graft survival is modulated by recipient and donor age. Size-mismatched kidneys yield excellent graft survival when the donor is young. Donor age was more strongly associated with graft survival than size mismatch.
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Affiliation(s)
- Fanny Lepeytre
- Immunopathology Division, Research Centre, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Catherine Delmas-Frenette
- Immunopathology Division, Research Centre, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Xun Zhang
- Centre for Outcomes Research and Evaluation (CORE), McGill University Health Centre, Montréal, Quebéc, Canada
| | - Stéphanie Larivière-Beaudoin
- Immunopathology Division, Research Centre, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Ruth Sapir-Pichhadze
- Centre for Outcomes Research and Evaluation (CORE), McGill University Health Centre, Montréal, Quebéc, Canada.,Division of Nephrology and the Multi Organ Transplant Program, Royal Victoria Hospital, McGill University Health Centre, Montréal, Québec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, Québec, Canada
| | - Bethany J Foster
- Centre for Outcomes Research and Evaluation (CORE), McGill University Health Centre, Montréal, Quebéc, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, Québec, Canada.,Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montréal, Québec, Canada
| | - Héloïse Cardinal
- Immunopathology Division, Research Centre, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
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Khalili M, Lepeytre F, Guertin JR, Goupil R, Troyanov S, Bouchard J, Madore F. Impact of updated recommendations on acetylsalicylic acid use for primary prevention of cardiovascular disease in Canada: a population-based survey. CMAJ Open 2020; 8:E41-E47. [PMID: 31992558 PMCID: PMC6996036 DOI: 10.9778/cmajo.20190105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND The debate over acetylsalicylic acid (ASA) therapy for primary prevention of cardiovascular disease (CVD) has recently resurfaced, but scarce data are available on prophylactic ASA use in Canada for this purpose. This study aimed to evaluate the prevalence and factors associated with ASA use, and the potential impact of implementing the most recent (2016) US Preventive Services Task Force recommendations for primary CVD prevention in a Canadian setting. METHODS We performed a cross-sectional analysis using data from the CARTaGENE study, which included a representative sample (n = 20 004) of the 2018 general population of the province of Quebec. We assessed eligibility for ASA treatment using US Preventive Services Task Force criteria (age 50-69 yr, no past history of myocardial infarction or stroke, and 10-year risk of CVD of at least 10%). We extrapolated to the entire 2018 Quebec population the number of people who would need to start ASA treatment. RESULTS A total of 6231 respondents in the CARTaGENE study (54.2% of those aged 50-69 yr with no prior history of CVD) were found to be potentially eligible for ASA use for primary CVD prevention. Of the 6231, 1379 (22.1%) were receiving prophylactic ASA treatment. Factors found to be related to ASA use included age, male sex, regular medical visits, lower education level, obesity, hypertension, diabetes and dyslipidemia. Income and smoking status were not found to be significantly associated with ASA use. Our results indicate that 885 261 people would potentially have started ASA treatment if the US Preventive Services Task Force recommendations had been implemented in Quebec in 2018. INTERPRETATION Prevalent ASA use for primary CVD prevention was low. Implementation of the 2016 US Preventive Services Task Force recommendations would require initiating ASA treatment in a substantial proportion of people, with undetermined potential benefits.
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Affiliation(s)
- Myriam Khalili
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que
| | - Fanny Lepeytre
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que
| | - Jason Robert Guertin
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que
| | - Rémi Goupil
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que
| | - Stéphan Troyanov
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que
| | - Josée Bouchard
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que
| | - François Madore
- Faculty of Medicine (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Université de Montréal; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (Khalili, Lepeytre, Goupil, Troyanov, Bouchard, Madore), Montréal, Que.; Département de médecine sociale et preventive (Guertin), Faculty of Medicine, Université Laval; Centre de recherche du Centre hospitalier universitaire de Québec (Guertin), Québec, Que.
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Rostoker G, Lepeytre F, Rottembourg J. Analysis of Other Confounding Factors Is Mandatory before Considering That Long-Acting Erythropoiesis Stimulating Agents Are Deleterious to Patients on Dialysis. J Am Soc Nephrol 2019; 30:1771. [PMID: 31420408 DOI: 10.1681/asn.2019050505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Guy Rostoker
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Claude Galien Hospital, Quincy-sous-Sénart, France; and
| | - Fanny Lepeytre
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Claude Galien Hospital, Quincy-sous-Sénart, France; and
| | - Jacques Rottembourg
- Division of Nephrology, Dialysis and Transplantation, Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris, France
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10
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Lepeytre F, Royal V, Lavoie PL, Bollée G, Gougeon F, Beauchemin S, Rhéaume M, Brachemi S, Laurin LP, Troyanov S. Estimating the Change in Renal Function During the First Year of Therapy in ANCA-Associated Vasculitis. Kidney Int Rep 2019; 4:594-602. [PMID: 30993234 PMCID: PMC6451086 DOI: 10.1016/j.ekir.2019.02.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/30/2019] [Accepted: 02/04/2019] [Indexed: 12/02/2022] Open
Abstract
Introduction Studies in antineutrophil cytoplasmic autoantibody (ANCA)–associated vasculitis (AAV) consistently show that the months following diagnosis have the greatest impact on the long-term renal function. Yet, it remains uncertain how much early gain should be expected with treatment. We sought to determine the factors associated with the change in glomerular filtration rate (GFR) throughout the first year. Methods We retrospectively reviewed patients from 3 university hospitals who received treatments. We assessed the proportions of glomeruli with crescents, with global sclerosis, the AAV glomerulonephritis classification, the severity of chronic vascular and tubulo-interstitial disease, and the presence of acute tubular injury (ATI). We used repeated-measures analyses of variance (ANOVAs) to determine factors associated with the change in GFR throughout the first year. Results There were 162 individuals with AAV identified, 96 with a valid renal biopsy and 82 with at least 12 months of follow-up. The initial GFR of 30 ± 25 ml/min per 1.73 m2 rose by 15 ± 20 during the first year. The severity of pathology findings, myeloperoxidase positivity, and those with kidney- and lung-limited disease presented with a lower GFR. Younger patients with a lower initial GFR and the presence of ATI correlated with a greater increase in GFR by 12 months. A higher proportion of crescents did not predict the change in GFR, contrary to global glomerulosclerosis, where each 10% increase added a loss of 2.7 ± 1.3 ml/min per 1.73 m2 per year (P = 0.03). These factors remained independent of each other. Conclusion Multiple factors influence renal recovery during the first year of therapy. Estimating the change in GFR early on will help identify and reassess outliers.
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Affiliation(s)
- Fanny Lepeytre
- Nephrology Division, Hôpital du Sacré-Coeur de Montréal, Québec, Canada
| | - Virginie Royal
- Pathology Department, Hôpital Maisonneuve-Rosemont, Québec, Canada
| | - Pierre-Luc Lavoie
- Nephrology Division, Hôpital du Sacré-Coeur de Montréal, Québec, Canada
| | - Guillaume Bollée
- Nephrology Division, Centre Hospitalier de l'Université de Montréal, Québec, Canada
| | - François Gougeon
- Pathology Department, Centre Hospitalier de l'Université de Montréal, Québec, Canada
| | | | - Maxime Rhéaume
- Internal Medicine Division, Hôpital du Sacré-Coeur de Montréal, Québec, Canada
| | - Soumeya Brachemi
- Nephrology Division, Centre Hospitalier de l'Université de Montréal, Québec, Canada
| | | | - Stéphan Troyanov
- Nephrology Division, Hôpital du Sacré-Coeur de Montréal, Québec, Canada
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11
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Rostoker G, Loridon C, Griuncelli M, Rabaté C, Lepeytre F, Ureña-Torres P, Issad B, Ghali N, Cohen Y. Liver Iron Load Influences Hepatic Fat Fraction in End-Stage Renal Disease Patients on Dialysis: A Proof of Concept Study. EBioMedicine 2018; 39:461-471. [PMID: 30502056 PMCID: PMC6354439 DOI: 10.1016/j.ebiom.2018.11.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/08/2018] [Accepted: 11/12/2018] [Indexed: 12/13/2022] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) is a spectrum of diseases including steatosis, nonalcoholic steatohepatitis (NASH), cirrhosis, and end-stage liver failure. Hepatic iron accumulation has been linked to hepatic fibrosis severity in NASH and NAFLD. Iron overload induced by parenteral (IV) iron therapy is a potential clinical problem in dialysis patients. We analyzed the hypothetical triggering and aggravating role of iron on NAFLD in patients on dialysis. Methods Liver iron concentration (LIC) and hepatic proton density fat fraction (PDFF) were analyzed prospectively in 68 dialysis patients by magnetic resonance imaging (MRI). Follow up of LIC and PDFF was performed in 17 dialysis patients during iron therapy. Findings PDFF differed significantly among dialysis patients classified according to LIC: patients with moderate or severe iron overload had increased fat fraction (PDFF: 7.9% (0.5–14.8%)) when compared to those with normal LIC (PDFF: 5% (0.27–11%)) or mild iron overload (PDFF: 5% (0.30–11.6%); P = 0.0049). PDFF correlated with LIC, and ferritin and body mass index. In seven patients monitored during IV iron therapy, LIC and PDFF increased concomitantly (PDFF: initial 2.5%, final 8%, P = 0.0156; LIC: initial 20 μmol/g, final 160 μmol/g: P = 0.0156), whereas in ten patients with iron overload, PDFF decreased after IV iron withdrawal or major dose reduction (initial: 8%, final: 4%; P = 0.0098) in parallel with LIC (initial: 195 μmol/g, final: 45 μmol/g; P = 0.002). Interpretation Liver iron load influences hepatic fat fraction in dialysis patients. Iron overload induced by iron therapy may aggravate or trigger NAFLD in dialysis patients. Trial registration number (ISRCTN) 80100088.
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Affiliation(s)
- Guy Rostoker
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Hôpital Privé Claude Galien, Quincy-Sous-Sénart, France.
| | - Christelle Loridon
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Hôpital Privé Claude Galien, Quincy-Sous-Sénart, France
| | - Mireille Griuncelli
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Hôpital Privé Claude Galien, Quincy-Sous-Sénart, France
| | - Clémentine Rabaté
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Hôpital Privé Claude Galien, Quincy-Sous-Sénart, France
| | - Fanny Lepeytre
- Division of Nephrology and Dialysis, Ramsay Générale de Santé, Hôpital Privé Claude Galien, Quincy-Sous-Sénart, France
| | - Pablo Ureña-Torres
- Division of Dialysis, Ramsay Générale de Santé, Clinique du Landy, Saint-Ouen, France
| | - Belkacem Issad
- Division of Nephrology and Dialysis, Assistance Publique Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Nasredine Ghali
- Division of Nephrology and Dialysis, Centre Hospitalier Marc Jacquet, Melun, France
| | - Yves Cohen
- Division of Radiology, Ramsay Générale de Santé, Hôpital Privé Claude Galien, Quincy-Sous-Sénart, France
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12
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Lepeytre F, Ghannoum M, Ammann H, Madore F, Troyanov S, Goupil R, Bouchard J. Formulas for Calculated Osmolarity and Osmolal Gap: A Study of Diagnostic Accuracy. Am J Kidney Dis 2017; 70:347-356. [DOI: 10.1053/j.ajkd.2017.03.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 03/27/2017] [Indexed: 11/11/2022]
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13
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Lepeytre F, Cardinal H, Fradette L, Verhave J, Dorais M, LeLorier J, Pichette V, Madore F. The impact of renal protection clinics on prescription of and adherence to cardioprotective drug therapy in chronic kidney disease patients. Clin Kidney J 2017; 10:375-380. [PMID: 28616215 PMCID: PMC5466117 DOI: 10.1093/ckj/sfw144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 11/14/2016] [Indexed: 11/24/2022] Open
Abstract
Background: The aim of this study was to assess the impact of follow-up in renal protection clinics on the prescription of and adherence to cardioprotective drugs in patients with chronic kidney disease (CKD). Methods: We studied stage 4 and 5 CKD patients who initiated follow-up in three renal protection clinics. The prescription pattern of antihypertensive agents (AHA) and lipid-lowering agents (LLAs) was measured as the percentage of patients who are prescribed the agents of interest at a given time. Adherence to drug therapy was defined as the percentage of days, during a pre-defined observation period, in which patients have an on-hand supply of their prescribed medications. Results: A total of 259 CKD patients were enrolled and followed for up to 1 year after referral to renal protection clinics. There was a significant increase in the prescription of angiotensin-converting enzyme inhibitors (34–39%), angiotensin II receptor blockers (11–14%), beta-blockers (40–51%), calcium channel blockers (62–74%), diuretics (66–78%) and LLAs (39–47%) during follow-up in the renal protection clinic compared with baseline (P-values <0.01 for all comparisons). The proportions of patients with good (≥ 80%) and poor (< 80%) adherence to AHA (P = 0.41) and LLAs (P = 0.11) were similar in the year preceding and the year following the first visit to the renal protection clinics. Conclusion: Our results suggest that referral and follow-up in a renal protection clinic may increase the prescription of cardioprotective agents in CKD patients, but does not appear to improve adherence to these medications.
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Affiliation(s)
- Fanny Lepeytre
- Research Center and Renal Division of Hôpital du Sacré-Cœur de Montréal, 5400 Blvd Gouin O, Montreal, Quebec, Canada H4J 1C5
| | - Héloise Cardinal
- Research Center and Renal Division of Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Lorraine Fradette
- Research Center and Renal Division of Hôpital du Sacré-Cœur de Montréal, 5400 Blvd Gouin O, Montreal, Quebec, Canada H4J 1C5
| | - Jacobien Verhave
- Research Center and Renal Division of Hôpital du Sacré-Cœur de Montréal, 5400 Blvd Gouin O, Montreal, Quebec, Canada H4J 1C5
| | - Marc Dorais
- StatSciences Inc., Notre-Dame-de-l'Île-Perrot, Quebec, Canada
| | - Jacques LeLorier
- Research Center and Renal Division of Hôpital du Sacré-Cœur de Montréal, 5400 Blvd Gouin O, Montreal, Quebec, Canada H4J 1C5
| | - Vincent Pichette
- Research Center and Renal Division of Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada
| | - François Madore
- Research Center and Renal Division of Hôpital du Sacré-Cœur de Montréal, 5400 Blvd Gouin O, Montreal, Quebec, Canada H4J 1C5
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14
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Lepeytre F, Dahhou M, Zhang X, Boucquemont J, Sapir-Pichhadze R, Cardinal H, Foster BJ. Association of Sex with Risk of Kidney Graft Failure Differs by Age. J Am Soc Nephrol 2017; 28:3014-3023. [PMID: 28592422 DOI: 10.1681/asn.2016121380] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 04/29/2017] [Indexed: 12/31/2022] Open
Abstract
Prior studies of sex differences in kidney graft survival showed conflicting results. We hypothesized that the association between recipient sex and kidney graft failure risk differs by recipient age and donor sex. We evaluated 159,417 patients recorded in the Scientific Registry of Transplant Recipients database who received a first deceased-donor kidney transplant (1995-2013). We used time-varying Cox models to estimate the association between recipient sex and death-censored graft failure. Models, stratified on donor sex and adjusted for potential confounders, included a recipient sex by current age interaction term. Among recipients of male donors, females of all ages had significantly higher graft failure risks than males (adjusted hazard ratios 0-14 years: 1.51 [95% confidence intervals 1.19 to 1.90]; 15-24 years: 1.37 [1.18 to 1.59]; 25-44 years: 1.14 [1.03 to 1.26]; 45 years: 1.05 [1.01 to 1.09]). Among recipients of female-donor grafts, only female recipients aged 15-24 years had a significantly higher graft failure risk than their male counterparts had (1.28 [1.06 to 1.53]). Indeed, female recipients aged ≥45 years had a significantly lower graft failure risk than their male counterparts had (0.95 [0.91 to 0.99]). These observations might be explained by the combined influence of several factors, including recognition of sex-determined minor histocompatibility antigens, influence of sex hormones on immune activation, sex- and age-related differences in medication adherence, and sex-related differences in body size. Additional studies should determine whether sex- and age-specific immunosuppression strategies are warranted for kidney graft recipients.
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Affiliation(s)
- Fanny Lepeytre
- Department of Medicine, Nephrology Division and Research Center, Centre Hospitalier de l'Université de Montréal, University of Montreal, Montreal, Quebec, Canada
| | - Mourad Dahhou
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Xun Zhang
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Julie Boucquemont
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada; and
| | - Ruth Sapir-Pichhadze
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada; and.,Departments of Medicine and
| | - Heloise Cardinal
- Department of Medicine, Nephrology Division and Research Center, Centre Hospitalier de l'Université de Montréal, University of Montreal, Montreal, Quebec, Canada
| | - Bethany J Foster
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; .,Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada; and.,Pediatrics, Division of Nephrology, McGill University Faculty of Medicine, Montreal, Quebec, Canada
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15
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Bellur SS, Lepeytre F, Vorobyeva O, Troyanov S, Cook HT, Roberts ISD. Evidence from the Oxford Classification cohort supports the clinical value of subclassification of focal segmental glomerulosclerosis in IgA nephropathy. Kidney Int 2016; 91:235-243. [PMID: 27914703 DOI: 10.1016/j.kint.2016.09.029] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 09/09/2016] [Accepted: 09/15/2016] [Indexed: 01/29/2023]
Abstract
Focal segmental glomerulosclerosis (FSGS) is a common finding in IgA nephropathy (IgAN). Here we assessed FSGS lesions in the Oxford Classification patient cohort and correlated histology with clinical presentation and outcome to determine whether subclassification of the S score in IgAN is reproducible and of clinical value. Our subclassification of lesions in 137 individuals with segmental glomerulosclerosis or adhesion (S1) identified 38% with podocyte hypertrophy, 10% with hyalinosis, 9% with resorption droplets within podocytes, 7% with tip lesions, 3% with perihilar sclerosis, and 2% with endocapillary foam cells. Reproducibility was good or excellent for tip lesions, hyalinosis, and perihilar sclerosis; moderate for podocyte hypertrophy; and poor for resorption droplets, adhesion only, and endocapillary foam cells. Podocyte hypertrophy and tip lesions were strongly associated with greater initial proteinuria. During follow-up of patients without immunosuppression, those with these features had more rapid renal function decline and worse survival from a combined event compared to S1 patients without such features and those without FSGS. Also in individuals with podocyte hypertrophy or tip lesions, immunosuppressive therapy was associated with better renal survival. In IgA nephropathy, the presence of podocyte hypertrophy or tip lesions, markers of podocyte injury, were reproducible. These features are strongly associated with proteinuria and, in untreated patients, carry a worse prognosis. Thus, our findings support reporting podocytopathic features alongside the S score of the Oxford Classification.
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Affiliation(s)
- Shubha S Bellur
- Department of Cellular Pathology, John Radcliffe Hospital, Oxford, United Kingdom
| | - Fanny Lepeytre
- Division of Nephrology, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada
| | - Olga Vorobyeva
- Department of Cellular Pathology, John Radcliffe Hospital, Oxford, United Kingdom
| | - Stéphan Troyanov
- Division of Nephrology, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada
| | - H Terence Cook
- Department of Medicine, Imperial College, London, United Kingdom
| | - Ian S D Roberts
- Department of Cellular Pathology, John Radcliffe Hospital, Oxford, United Kingdom.
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16
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Lepeytre F, Dahan K, Plaisier E, Michel PA, Morbieu C, Verpont MC, Debiec H, Frémeaux-Bacchi V, Brocheriou I, Ronco P. Association atypique d’une micro-angiopathie thrombotique et d’une glomérulonéphrite familiale à dépôts de C3 : une seule cause, la voie alterne du complément ? Nephrol Ther 2014. [DOI: 10.1016/j.nephro.2014.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Abstract
Thrombospondin-1 (TSP-1) is a 450-kDa matricellar glycoprotein. By its various domains, it can interact with various partners and exhibit anti-angiogenic, pro-apoptotic and immunomodulatory activities. TSP-1 is also a major endogenous activator of the pro-fibrotic growth factor TGF-β. In healthy adult renal parenchyma, TSP-1 expression is very scarce and limited to Bowman's capsule and interstitium. During nephropathies, many cell types can express or secrete TSP-1 (mesangial, endothelial, smooth muscle, tubular cells, podocytes and fibroblasts) depending on the nature of injury and the evolutive stage of the disease. Inhibition of the different domains of TSP-1 using specific antibodies or peptides, blockade of TSP-1 expression by antisense oligonucleotides and use of knock-out mice, allowed to identify the role of TSP-1 in various models of experimental nephropathy. All these studies demonstrated a deleterious effect of TSP-1 on renal repair by inducing TGF-β and fibrosis, decreasing VEGF and capillary density, and enhancing inflammatory cells recruitment. Thus, TSP-1 represents a potential therapeutic target for the management of chronic kidney diseases.
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Affiliation(s)
- Naïke Bigé
- Service néphrologie et dialyse, Inserm UMRS 702, hôpital Tenon, 4, rue de la Chine, 75020 Paris, France
| | - Jean-Jacques Boffa
- Service néphrologie et dialyse, Inserm UMRS 702, hôpital Tenon, 4, rue de la Chine, 75020 Paris, France
| | - Fanny Lepeytre
- Service néphrologie et dialyse, Inserm UMRS 702, hôpital Tenon, 4, rue de la Chine, 75020 Paris, France
| | - Nasim Shweke
- Service néphrologie et dialyse, Inserm UMRS 702, hôpital Tenon, 4, rue de la Chine, 75020 Paris, France
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18
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Michel P, Hadjadj J, Chauvet S, Cazenave M, Lepeytre F, Brocheriou I, Plaisier E, Ronco P, Boffa J. Néphropathie interstitielle aiguë granulomateuse concomitante d’une tuberculose liée à un syndrome de restauration immunitaire à l’arrêt des anti-TNF-alpha. Nephrol Ther 2013. [DOI: 10.1016/j.nephro.2013.07.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Gain M, Ghnaya H, Lepeytre F, Toledano C, Cabane J, Phong Tiev K. [Leprosy: a rare imported disease]. Rev Med Interne 2009; 30:1064-6. [PMID: 19836114 DOI: 10.1016/j.revmed.2009.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2007] [Revised: 02/12/2009] [Accepted: 03/03/2009] [Indexed: 11/16/2022]
Abstract
Although rare in occidental countries, leprosy is an endemic disease throughout the world. Physicians may encounter imported cases and thus need to be aware of this diagnosis. We here report a 41-year-old male patient from French West Indies who presented with nonspecific extensive skin lesions and a peripheral neuropathy. Skin biopsy examination led to the diagnosis of borderline lepromatous leprosy.
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Affiliation(s)
- M Gain
- Service de médecine interne, hôpital Saint-Antoine, Assistance publique-Hôpitaux de Paris, université Paris-VI, rue du Faubourg-Saint-Antoine, 75012 Paris cedex, France.
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