New insights into acute-on-chronic kidney disease in nephrology patients: the CKD-REIN study
Author:
Hamroun Aghilès12, Frimat Luc34, Laville Maurice56, Metzger Marie1, Combe Christian78ORCID, Fouque Denis56, Jacquelinet Christian9, Ayav Carole10, Liabeuf Sophie11ORCID, Lange Céline9, Herpe Yves-Edouard12, Zee Jarcy13, Glowacki François2, Massy Ziad A114, Robinson Bruce13, Stengel Bénédicte1, Ayav Carole, Briançon Serge, Cannet Dorothée, Combe Christian, Fouque Denis, Frimat Luc, Herpe Yves-Edouard, Jacquelinet Christian, Laville Maurice, Massy Ziad A, Pascal Christophe, Robinson Bruce M, Stengel Bénédicte, Lange Céline, Legrand Karine, Liabeuf Sophie, Metzger Marie, Speyer Elodie, Hannedouche Prs Thierry, Moulin Bruno, Mailliez Sébastien, Lebrun Gaétan, Magnant Eric, Choukroun Gabriel, Deroure Benjamin, Lacraz Adeline, Lambrey Guy, Bourdenx Jean Philippe, Essig Marie, Lobbedez Thierry, Azar Raymond, Sekhri Hacène, Smati Mustafa, Jamali Mohamed, Klein Alexandre, Delahousse Michel, Combe Christian, Martin Séverine, Landru Isabelle, Thervet Eric, Lang Philippe, Belenfant Xavier, Urena Pablo, Vela Carlos, Kamar Nassim, Chauveau Dominique, Panescu Viktor, Noel Christian, Glowacki François, Hoffmann Maxime, Hourmant Maryvonne, Besnier Dominique, Testa Angelo, Kuentz François, Zaoui Philippe, Chazot Charles, Juillard Laurent, Burtey Stéphane, Keller Adrien, Maisonneuve Nathalie,
Affiliation:
1. Centre for Research in Epidemiology and Population Health, Paris-Saclay University, Versailles Saint Quentin University, Inserm, Clinical Epidemiology Team, CESP, Villejuif, France 2. Department of Nephrology, Dialysis, and Transplantion, Regional University Hospital Centre of Lille, Lille, France 3. Department of Nephrology, Nancy University Hospital, Vandoeuvre-lès-Nancy, France 4. Lorraine University, APEMAC, Nancy, France 5. Department of Nephrology, Lyon Sud Hospital, Pierre Bénite, France 6. Lyon University, INSERM U1060, CarMeN, Pierre Bénite, France 7. Nephrology Transplantation, Dialysis, Bordeaux University Hospital, Bordeaux, France 8. Inserm U1026, Bordeaux Segalen University, Bordeaux, France 9. Agence de la Biomédecine, La Plaine Saint-Denis, France 10. Department of Clinical Epidemiology, INSERM CIC-EC 1433, Nancy University Hospital, Vandoeuvre-lès-Nancy, France 11. Amiens University Hospital, Clinical Research Centre, Avenue R.Laennec, Amiens, France 12. Biobanque de Picardie, Amiens University Hospital, Amiens, France 13. Arbor Research Collaborative for Health, Ann Arbor, MI, USA 14. Department of Nephrology, Ambroise Paré University Hospital, Paris, France
Abstract
Abstract
Background
Acute-on-chronic kidney disease (ACKD) is poorly understood and often overlooked. We studied its incidence, circumstances, determinants and outcomes in patients with CKD.
Methods
We used the Kidney Disease: Improving Global Outcomes criteria to identify all-stage acute kidney injury (AKI) events in 3033 nephrology outpatients with CKD Stages 3–5 participating in the CKD-Renal Epidemiology and Information Network cohort study (2013–20), and cause-specific Cox models to estimate hazard ratios [HRs; 95% confidence intervals (CIs)] of AKI-associated risk factors.
Results
At baseline, 22% of the patients [mean age 67 years, 65% men, mean estimated glomerular filtration rate (eGFR) 32 mL/min/1.73 m2] had a history of AKI. Over a 3-year follow-up, 443 had at least one AKI event: 27% were Stage 2 or 3 and 11% required dialysis; 74% involved hospitalization including 47% acquired as hospital inpatients; and a third were not reported in hospital discharge reports. Incidence rates were 10.1 and 4.8/100 person-years in patients with and without an AKI history, respectively. In 2375 patients without this history, male sex, diabetes, cardiovascular disease, cirrhosis, several drugs, low eGFR and serum albumin levels were significantly associated with a higher risk of AKI, as were low birth weight (<2500 g) (adjusted HR 1.98; 95% CI 1.35–2.91) and haemoglobin level (HR 1.21; 1.12–1.32 per 1 g/dL decrease). Within 1 year, only 63% of the patients had recovered their previous kidney function, 13.7% had started kidney replacement therapy and 12.7% had died.
Conclusions
The study highlights the high rate of hospital-acquired AKI events in patients with CKD, and their underreporting at hospital discharge. It also reveals low birth weight and anaemia as possible new risk factors in CKD patients.
Publisher
Oxford University Press (OUP)
Subject
Transplantation,Nephrology
Cited by
7 articles.
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