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Vestergaard AEF, Jensen SK, Heide-Jørgensen U, Adelborg K, Birn H, Carrero JJ, Christiansen CF. Oral anticoagulant treatment and risk of kidney disease-a nationwide, population-based cohort study. Clin Kidney J 2024; 17:sfad252. [PMID: 38186872 PMCID: PMC10768770 DOI: 10.1093/ckj/sfad252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Indexed: 01/09/2024] Open
Abstract
Background Direct oral anticoagulants (DOACs) are recommended as first-line treatment of atrial fibrillation. Whether DOAC use is associated with lower risks of kidney complications compared with vitamin K antagonists (VKAs) remains unclear. We examined this association in a nationwide, population-based cohort study. Methods We conducted a cohort study including patients initiating oral anticoagulant treatment within 3 months after an atrial fibrillation diagnosis in Denmark during 2012-18. Using routinely collected creatinine measurements from laboratory databases, we followed patients in an intention-to-treat approach for acute kidney injury (AKI) and chronic kidney disease (CKD) progression. We used propensity-score weighting to balance baseline confounders, computed weighted risks and weighted hazard ratios (HRs) with 95% confidence intervals (CIs) comparing DOACs with VKAs. We performed several subgroup analyses and a per-protocol analysis. Results We included 32 781 persons with atrial fibrillation initiating oral anticoagulation (77% initiating DOACs). The median age was 75 years, 25% had a baseline estimated glomerular filtration rate <60 mL/min/1.73 m2, and median follow-up was 2.3 (interquartile range 1.1-3.9) years. The weighted 1-year risks of AKI were 13.6% in DOAC users and 15.0% in VKA users (HR 0.86, 95% CI 0.82; 0.91). The weighted 5-year risks of CKD progression were 13.9% in DOAC users and 15.4% in VKA users (HR 0.85, 95% CI 0.79; 0.92). Results were similar across subgroups and in the per-protocol analysis. Conclusions Initiation of DOACs was associated with a decreased risk of AKI and CKD progression compared with VKAs. Despite the potential limitations of observational studies, our findings support the need for increased clinical awareness to prevent kidney complications among patients who initiate oral anticoagulants.
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Affiliation(s)
- Ane Emilie Friis Vestergaard
- Department of Clinical Epidemiology, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - Simon Kok Jensen
- Department of Clinical Epidemiology, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - Uffe Heide-Jørgensen
- Department of Clinical Epidemiology, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - Kasper Adelborg
- Department of Clinical Epidemiology, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Biochemistry, Gødstrup Regional Hospital, Gødstrup, Denmark
| | - Henrik Birn
- Departments of Biomedicine and Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Juan-Jesus Carrero
- Department of Medical Epidemiology and Biostatisctics, Karolinska Institutet, Stockholm, Sweden
| | - Christian Fynbo Christiansen
- Department of Clinical Epidemiology, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
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Zagoridis K, Karatisidis L, Mprotsis T, Pentidou A, Bezirgianidou Z, Misidou C, Spanoudakis E. Apixaban reduces the risk of major and clinically relevant non-major bleeding compared to warfarin in patients with end stage renal disease; a systematic review and meta-analysis of ten studies. Thromb Res 2023; 231:17-24. [PMID: 37748234 DOI: 10.1016/j.thromres.2023.09.005] [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: 08/02/2023] [Revised: 09/03/2023] [Accepted: 09/11/2023] [Indexed: 09/27/2023]
Abstract
Optimal anticoagulation in patients with end-stage renal disease ESRD is a matter of debate since these patients are not included in randomized controlled trials (RCTs). Evolving data are in favor of apixaban compared to warfarin. METHODS We extracted data from 2 RCTs, 5 retrospective cohort studies and 3 large data-based studies. Both dosing regimens of apixaban, standard or reduced, were accepted. In most studies characteristics of patients were balanced between arms. Patients with either atrial fibrillation (AF) or venous thromboembolism (VTE) were included. Quality of studies was graded as high and the funnel plot did not detect any publication bias. In total we analyzed the outcome of 6693 ESRD patients treated with apixaban and 19,836 treated with warfarin. Our analysis was performed by using the random effects model. We report our data as Risk Ratio (RR) and associated 95 % confidence interval values (95 %, CI). RESULTS The RR (95 % CI) of major bleeding was 0.69 (0.57-0.84) p = 0.0002 in favor of apixaban vs warfarin with heterogeneity to be statistically significant I2 63% p = 0.004. Meta-regression analysis with year of publication as moderator shows in bubble plotting that studies published earlier than 2018 were plotted as outliers. The RR (95 % CI) of clinically relevant non-major bleeding (CRNMB) was 0.74 (0.64-0.87) p = 0.0002 favoring again apixaban. Standard apixaban dose over reduced dose is less hemorrhagic compared to warfarin. Overall, in our study the risk of thrombosis in both arms was statistically non-different. CONCLUSIONS In our study we observed less hemorrhagic events with apixaban in ESRD patients compared to warfarin.
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Affiliation(s)
- Konstantinos Zagoridis
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Lazaros Karatisidis
- Department of Biomathematics, School of Medicine, University of Thessaly, Greece
| | - Theodoros Mprotsis
- Department of Biomathematics, School of Medicine, University of Thessaly, Greece
| | - Aikaterini Pentidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Zoi Bezirgianidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christina Misidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Emmanouil Spanoudakis
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece.
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Simic J, Mihajlovic M, Zec N, Kovacevic V, Marinkovic M, Mujovic N, Potpara T. The impact of anticoagulation therapy on kidney function in patients with atrial fibrillation and chronic kidney disease. Expert Rev Cardiovasc Ther 2023; 21:937-945. [PMID: 37842943 DOI: 10.1080/14779072.2023.2270909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
INTRODUCTION Atrial fibrillation (AF) and chronic kidney disease (CKD) are closely related. These diseases share common risk factors and are associated with increased risk of thromboembolic events. Choosing the appropriate oral anticoagulant therapy (OAC) in patients with AF and CKD is challenging. Deterioration of renal function is common in patients with AF treated with OACs, although not all OACs affect the kidneys equally. AREAS COVERED In this review, we aim to summarize the current knowledge of the prevention of thromboembolic events in patients with AF and CKD, focusing on the impact of specific OAC agents on renal function. EXPERT OPINION Consideration of OAC use is mandatory in patients with AF and CKD who are at increased risk of stroke or systemic embolism. Available evidence suggests that the use of non-vitamin K antagonist oral anticoagulants (NOACs) is associated with slower deterioration of renal function in comparison to Vitamin K antagonists (VKAs). Hence, a NOAC should be used in preference to VKAs in all NOAC-eligible patients with AF and CKD. Regarding patients with end-stage renal dysfunction and those on dialysis or renal replacement therapy, the use of NOAC should be considered in line with locally relevant formal recommendations.
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Affiliation(s)
- Jelena Simic
- Cardiology Clinic, University Clinical Centre of Serbia, Belgrade, Serbia
| | | | - Nevena Zec
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vladan Kovacevic
- Cardiology Clinic, University Clinical Centre of Serbia, Belgrade, Serbia
| | - Milan Marinkovic
- Cardiology Clinic, University Clinical Centre of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nebojsa Mujovic
- Cardiology Clinic, University Clinical Centre of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana Potpara
- Cardiology Clinic, University Clinical Centre of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
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Mansour O, Paik JM, Wyss R, Mastrorilli JM, Bessette LG, Lu Z, Tsacogianis T, Lin KJ. A Novel Chronic Kidney Disease Phenotyping Algorithm Using Combined Electronic Health Record and Claims Data. Clin Epidemiol 2023; 15:299-307. [PMID: 36919110 PMCID: PMC10008306 DOI: 10.2147/clep.s397020] [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: 11/10/2022] [Accepted: 02/16/2023] [Indexed: 03/10/2023] Open
Abstract
Purpose Because chronic kidney disease (CKD) is often under-coded as a diagnosis in claims data, we aimed to develop claims-based prediction models for CKD phenotypes determined by laboratory results in electronic health records (EHRs). Patients and Methods We linked EHR from two networks (used as training and validation cohorts, respectively) with Medicare claims data. The study cohort included individuals ≥65 years with a valid serum creatinine result in the EHR from 2007 to 2017, excluding those with end-stage kidney disease or on dialysis. We used LASSO regression to select among 134 predictors for predicting continuous estimated glomerular filtration rate (eGFR). We assessed the model performance when predicting eGFR categories of <60, <45, <30 mL/min/1.73m2 in terms of area under the receiver operating curves (AUC). Results The model training cohort included 117,476 patients (mean age 74.8 years, female 58.2%) and the validation cohort included 56,744 patients (mean age 73.8 years, female 59.6%). In the validation cohort, the AUC of the primary model (with 113 predictors and an adjusted R2 of 0.35) for predicting eGFR <60, eGFR<45, and eGFR <30 mL/min/1.73m2 categories was 0.81, 0.88, and 0.92, respectively, and the corresponding positive predictive values for these 3 phenotypes were 0.80 (95% confidence interval: 0.79, 0.81), 0.79 (0.75, 0.84), and 0.38 (0.30, 0.45), respectively. Conclusion We developed a claims-based model to determine clinical phenotypes of CKD stages defined by eGFR values. Researchers without access to laboratory results can use the model-predicted phenotypes as a proxy clinical endpoint or confounder and to enhance subgroup effect assessment.
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Affiliation(s)
- Omar Mansour
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Julie M Paik
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- New England Geriatric Research Education and Clinical Center, VA Boston Healthcare System, Boston, MA, USA
| | - Richard Wyss
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Julianna M Mastrorilli
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Lily Gui Bessette
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Zhigang Lu
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Theodore Tsacogianis
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Kueiyu Joshua Lin
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Trevisan M, Hjemdahl P, Clase CM, de Jong Y, Evans M, Bellocco R, Fu EL, Carrero JJ. Cardiorenal Outcomes Among Patients With Atrial Fibrillation Treated With Oral Anticoagulants. Am J Kidney Dis 2023; 81:307-317.e1. [PMID: 36208798 DOI: 10.1053/j.ajkd.2022.07.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 07/31/2022] [Indexed: 11/06/2022]
Abstract
RATIONALE & OBJECTIVE Direct oral anticoagulants (DOACs) have progressively replaced vitamin K antagonists (VKAs) for stroke prevention in patients with nonvalvular atrial fibrillation (AF). DOACs cause fewer bleeding complications, but their other advantages, particularly related to kidney outcomes, remain inconclusive. We studied the risks of chronic kidney disease (CKD) progression and acute kidney injury (AKI) after DOAC and VKA administration for nonvalvular AF. STUDY DESIGN Retrospective cohort study. SETTING & PARTICIPANTS Cohort study of Swedish patients enrolled in the Stockholm Creatinine Measurements (SCREAM) project with a diagnosis of nonvalvular AF during 2011-2018. EXPOSURE Initiation of DOAC or VKA treatment. OUTCOME Primary outcomes were CKD progression (composite of >30% estimated glomerular filtration rate [eGFR] decline and kidney failure) and AKI (by diagnosis or KDIGO-defined transient creatinine elevations). Secondary outcomes were death, major bleeding, and the composite of stroke and systemic embolism. ANALYTICAL APPROACH Propensity score weighted Cox regression was used to balance 50 baseline confounders. Sensitivity analyses included falsification end points, subgroups, and estimation of per-protocol effects. RESULTS We included 32,699 patients (56% initiated DOAC) who were observed for a median of 3.8 years. Their median age was 75 years, 45% were women, and 27% had an eGFR <60mL/min/1.73m2. The adjusted HRs for DOAC versus VKA were 0.87 (95% CI, 0.78-0.98) for the risk of CKD progression and 0.88 (95% CI, 0.80-0.97) for AKI. HRs were 0.77 (95% CI, 0.67-0.89) for major bleeding, 0.93 (95% CI, 0.78-1.11) for the composite of stroke and systemic embolism, and 1.04 (95% CI, 0.95-1.14) for death. The results were similar across subgroups of age, sex, and baseline eGFR when restricting to patients at high risk for thromboembolic events and when censoring follow up at treatment discontinuation or change in type of anticoagulation. LIMITATIONS Missing information on time in therapeutic range and treatment dosages. CONCLUSIONS Among patients with nonvalvular AF treated in routine clinical practice compared with VKA use, DOAC use was associated with a lower risk of CKD progression, AKI, and major bleeding but a similar risk of the composite of stroke, systemic embolism, or death.
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Affiliation(s)
- Marco Trevisan
- Department of Medical Epidemiology and Biostatistics, Campus Solna, Karolinska Institutet, Stockholm, Sweden
| | - Paul Hjemdahl
- Clinical Epidemiology Unit/Clinical Pharmacology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Catherine M Clase
- Department of Medicine and Health Research Methods, Evidence and Impact, McMaster University, Ontario, Canada
| | - Ype de Jong
- Division of Pharmacoepidemiology, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts; Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Marie Evans
- Department of Clinical Science Intervention and Technology, Hospital Huddinge, Karolinska University, Huddinge, Sweden
| | - Rino Bellocco
- Department of Medical Epidemiology and Biostatistics, Campus Solna, Karolinska Institutet, Stockholm, Sweden; Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| | - Edouard L Fu
- Department of Medical Epidemiology and Biostatistics, Campus Solna, Karolinska Institutet, Stockholm, Sweden; Division of Pharmacoepidemiology, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Juan Jesus Carrero
- Department of Medical Epidemiology and Biostatistics, Campus Solna, Karolinska Institutet, Stockholm, Sweden; Division of Nephrology, Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.
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6
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Ren C, Zhao Y, Liu D. Effects of direct oral anticoagulants vs. vitamin K antagonists on acute kidney injury in patients with atrial fibrillation: A systematic review. Front Cardiovasc Med 2023; 10:1068269. [PMID: 36776257 PMCID: PMC9909185 DOI: 10.3389/fcvm.2023.1068269] [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: 10/12/2022] [Accepted: 01/02/2023] [Indexed: 01/27/2023] Open
Abstract
Background Patients with atrial fibrillation (AF) are routinely prescribed oral anticoagulants to prevent thromboembolism. Concerns regarding the efficacy and safety of oral anticoagulants, such as vitamin K antagonists (VKA) and direct oral anticoagulants (DOACs), arise for patients with non-valvular atrial fibrillation (NVAF) because of their widespread use in clinical practice. Even though there have been an abundance of studies on this topic, it is still not clear if DOAC users with NVAF have a lower risk of acute kidney injury (AKI) than warfarin users. Methods and results We conducted electronic searches in PubMed, Embase, and the Cochrane Library to identify relevant studies for this systematic review. We included randomized clinical trials and observational studies that reported on the incidence rate, hazard ratio (HR), and 95% confidence interval (95% CI) of AKI in patients using oral anticoagulants. This systemic review included six observational studies and four randomized clinical trials (RCT). The overall results showed that DOACs were associated with a lower AKI risk than warfarin. However, for NVAF patients with severe renal dysfunction, DOACs may not have a reduced risk of AKI compared to warfarin. Conclusion The overall results suggest that, except for edoxaban, patients using DOACs may experience a reduced risk of AKI. However, it is uncertain whether this is also the case for patients with severe renal dysfunction. Further research is needed to confirm the effect of DOACs on this population.
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Affiliation(s)
- Chengfa Ren
- Department of Nephrology, Ganzhou People's Hospital Affiliated to Nanchang University, Ganzhou, Jiangxi, China
| | - Yudan Zhao
- Medical Department, Queen Mary School, Nanchang University, Nanchang, China
| | - Dehui Liu
- Department of Nephrology, Ganzhou People's Hospital Affiliated to Nanchang University, Ganzhou, Jiangxi, China,*Correspondence: Dehui Liu ✉
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Carrero JJ, Fu EL, Vestergaard SV, Jensen SK, Gasparini A, Mahalingasivam V, Bell S, Birn H, Heide-Jørgensen U, Clase CM, Cleary F, Coresh J, Dekker FW, Gansevoort RT, Hemmelgarn BR, Jager KJ, Jafar TH, Kovesdy CP, Sood MM, Stengel B, Christiansen CF, Iwagami M, Nitsch D. Defining measures of kidney function in observational studies using routine health care data: methodological and reporting considerations. Kidney Int 2023; 103:53-69. [PMID: 36280224 DOI: 10.1016/j.kint.2022.09.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 08/31/2022] [Accepted: 09/09/2022] [Indexed: 11/06/2022]
Abstract
The availability of electronic health records and access to a large number of routine measurements of serum creatinine and urinary albumin enhance the possibilities for epidemiologic research in kidney disease. However, the frequency of health care use and laboratory testing is determined by health status and indication, imposing certain challenges when identifying patients with kidney injury or disease, when using markers of kidney function as covariates, or when evaluating kidney outcomes. Depending on the specific research question, this may influence the interpretation, generalizability, and/or validity of study results. This review illustrates the heterogeneity of working definitions of kidney disease in the scientific literature and discusses advantages and limitations of the most commonly used approaches using 3 examples. We summarize ways to identify and overcome possible biases and conclude by proposing a framework for reporting definitions of exposures and outcomes in studies of kidney disease using routinely collected health care data.
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Affiliation(s)
- Juan Jesus Carrero
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Solna, Sweden.
| | - Edouard L Fu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Solna, Sweden; Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Søren V Vestergaard
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Simon Kok Jensen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Alessandro Gasparini
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Solna, Sweden
| | - Viyaasan Mahalingasivam
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Samira Bell
- Division of Population Health and Genomics, University of Dundee, Dundee, UK
| | - Henrik Birn
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, Denmark; Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Uffe Heide-Jørgensen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Catherine M Clase
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Health Research and Methodology, McMaster University, Hamilton, Ontario, Canada
| | - Faye Cleary
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Josef Coresh
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Friedo W Dekker
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Ron T Gansevoort
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Kitty J Jager
- ERA Registry, Amsterdam UMC location University of Amsterdam, Medical Informatics, Meibergdreef, Amsterdam, Netherlands; Amsterdam Public Health Research Institute, Quality of Care, Amsterdam, the Netherlands
| | - Tazeen H Jafar
- Program in Health Services and Systems Research, Duke-NUS Medical School, Singapore
| | - Csaba P Kovesdy
- Division of Nephrology, Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Manish M Sood
- Department of Medicine, the Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Bénédicte Stengel
- CESP (Center for Research in Epidemiology and Population Health), Clinical Epidemiology Team, University Paris-Saclay, University Versailles-Saint Quentin, Inserm U1018, Villejuif, France
| | - Christian F Christiansen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Masao Iwagami
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK; Department of Health Services Research, University of Tsukuba, Ibaraki, Japan
| | - Dorothea Nitsch
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK; Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; UK Renal Registry, UK Kidney Association, Bristol, UK.
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Muacevic A, Adler JR, Kulkarni N. Anticoagulation for Stroke Prevention of Concomitant Atrial Fibrillation and End-Stage Renal Disease: Insights of Cardiologists and Nephrologists From India. Cureus 2022; 14:e32788. [PMID: 36694536 PMCID: PMC9857051 DOI: 10.7759/cureus.32788] [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] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Patients with concomitant atrial fibrillation (AF) and end-stage renal disease (ESRD) are at increased risk of thrombosis and bleeding. Diligent anticoagulant therapy that prevents major bleeding is essential for stroke prevention. There is a dearth of evidence and guidance on anticoagulation in this patient subset. Methods A validated questionnaire was sent to 500 physicians across India. Anonymized responses from 353 consenting physicians (275 cardiologists and 78 nephrologists) were analyzed. Results Most physicians opined that the risk of progression of chronic kidney disease (CKD) stages 2-4 to ESRD was 1-5%, and that >10% of patients with ESRD had concomitant AF. Most physicians perceived that the risk of ischemic stroke, major bleeding, and mortality was 30-40%, <15%, and >40% respectively in patients with concomitant AF and ESRD. The first critical goal for the management of these patients was 'reduction of thrombotic risk', followed by 'prevention of bleeding' and finally 'prevention of ESRD progression' (72.0%, 68.0%, and 67.1% participants, respectively). Most participating physicians (93.8%) preferred non-vitamin K antagonist oral anticoagulants (NOACs) over warfarin for stroke prevention, and most of the participating physicians (94.9%) preferred an adjusted dose rather than the standard dose of the NOAC. Most of the responses were similar between cardiologists and nephrologists. Conclusion According to the survey response, patients with concomitant AF and ESRD have an increased risk of thrombosis, bleeding, and mortality. NOACs with dose adjustment are the preferred modality for stroke prevention among cardiologists and nephrologists in India, with the primary goal of preventing thrombotic events.
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9
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Sánchez-González C, Herrero Calvo JA. Nonvalvular atrial fibrillation in patients undergoing chronic hemodialysis. Should dialysis patients with atrial fibrillation receive oral anticoagulation? Nefrologia 2022; 42:633-644. [PMID: 36907719 DOI: 10.1016/j.nefroe.2022.01.013] [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: 01/11/2022] [Accepted: 01/16/2022] [Indexed: 06/18/2023] Open
Abstract
Chronic kidney disease (CKD) is an independent risk factor for presenting atrial fibrillation (AF), which conditions an increased risk already present in CKD of suffering a thromboembolic event. And this risk is even higher in the hemodialysis (HD) population. On the other hand, in CKD patients and even more so in HD patients, the probability of suffering serious bleeding is also higher. Therefore, there is no consensus on whether or not to anticoagulate this population. Taking as a model what is advised for the general population, the most common attitude among nephrologists has been to opt for anticoagulation, even though there is no randomized studies to support it. Classically, anticoagulation has been done with vitamin K antagonists, at high cost for our patients: severe bleeding events, vascular calcification, and progression of nephropathy, among other complications. With the emergence of direct-acting anticoagulants, a hopeful outlook was opened in the field of anticoagulation, as they were postulated as more effective and safer drugs than antivitamin K. However, in clinical practice, this has not been the case. In this paper we review various aspects of AF and its anticoagulant treatment in the HD population.
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Bezabhe WM, Bereznicki LR, Radford J, Wimmer BC, Salahudeen MS, Bindoff I, Peterson GM. Comparing the renal outcomes in patients with atrial fibrillation receiving different oral anticoagulants. Expert Rev Clin Pharmacol 2022; 15:359-364. [PMID: 35452586 DOI: 10.1080/17512433.2022.2070151] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND We aimed to compare renal function changes in patients with atrial fibrillation (AF) prescribed different oral anticoagulants (OACs). RESEARCH DESIGN AND METHODS We performed a retrospective analysis of Australian national primary care data. A total of 12,562 patients with AF and initiated OAC between 1 Jan 2013 and 31 Dec 2017 were included. Inverse probability of treatment weighting was used for balancing baseline characteristics and the risks of decline in estimated glomerular filtration rate (eGFR) in patients prescribed each OAC were compared using Cox proportional hazards regression model. RESULTS Compared with warfarin, prescribing of direct-acting oral anticoagulants (DOACs) was associated with a lower risk of renal function decline per 1000 person-years: hazard ratio (HR) 0.75, 95% confidence interval (CI) 0.68-0.81, p<0.001 for ≥30% decline in eGFR; HR 0.28, 95% CI 0.20-0.41, p<0.001 for eGFR decline to ≤30 mL/min/1.73m2; and HR 0.45, 95% CI 0.35-0.58, p<0.001 for serum creatinine doubling. Compared with dabigatran, rivaroxaban use had a significantly lowered risk of decline in eGFR to ≤30 mL/min/1.73m2 (HR 0.29, 95% CI 0.13-0.66, p=0.003) and risk of doubling of serum creatinine (HR 0.62, 95% CI 0.40-0.95, p=0.030). CONCLUSIONS The risk of renal function decline appeared to be lower in patients prescribed DOACs versus warfarin.
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Affiliation(s)
- Woldesellassie M Bezabhe
- School of Pharmacy and Pharmacology, University of Tasmania, Private Bag 26, Hobart, Tasmania 7001, Australia
| | - Luke R Bereznicki
- School of Pharmacy and Pharmacology, University of Tasmania, Private Bag 26, Hobart, Tasmania 7001, Australia
| | - Jan Radford
- Launceston Clinical School, Tasmanian School of Medicine, University of Tasmania, 41 Frankland St, Launceston, Tasmania 7250, Australia
| | - Barbara C Wimmer
- School of Pharmacy and Pharmacology, University of Tasmania, Private Bag 26, Hobart, Tasmania 7001, Australia
| | - Mohammed S Salahudeen
- School of Pharmacy and Pharmacology, University of Tasmania, Private Bag 26, Hobart, Tasmania 7001, Australia
| | - Ivan Bindoff
- School of Pharmacy and Pharmacology, University of Tasmania, Private Bag 26, Hobart, Tasmania 7001, Australia
| | - Gregory M Peterson
- School of Pharmacy and Pharmacology, University of Tasmania, Private Bag 26, Hobart, Tasmania 7001, Australia
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Real world data of anticoagulant treatment in non-valvular atrial fibrillation across renal function status. Sci Rep 2022; 12:6123. [PMID: 35414001 PMCID: PMC9005546 DOI: 10.1038/s41598-022-10164-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/22/2022] [Indexed: 11/09/2022] Open
Abstract
The objective is to assess the impact of anticoagulant treatment in non-valvular atrial fibrillation (AF) and different categories of renal dysfunction in real world. Electronic Health recordings of patients with diagnosis of AF and renal function collected throughout 5 years and classified according to KDIGO categories. Stroke, transitory ischemic attack (TIA), intracranial hemorrhage and all-cause mortality were identified. Anticoagulant treatments during the study period were classified in untreated (never received therapy), VKA, NOAC and Aspirin. The risk of events was calculated by Cox-proportional hazard models adjusted by confounders. A total of 65,734 patients with AF, mean age 73.3 ± 10.49 years old and 47% females and follow-up of 3.2 years were included. KDIGO classification were: G1 33,903 (51.6%), G2 17,456 (26.6%), G3 8024 (12.2%) and G4 6351 (9.7%). There were 8592 cases of stroke and TIA, 437 intracranial hemorrhage, and 9603 all-cause deaths (incidence 36, 2 and 38 per 103 person/year, respectively). 4.1% of patients with CHA2DS2-VASc Score 2 or higher did not receive anticoagulant therapy. Risk of stroke, TIA, and all-cause mortality increased from G1 to G4 groups. Anticoagulant treatments reduced the risk of events in the four categories, but NOAC seemed to offer significantly better protection. Renal dysfunction increases the risk of events in AF and anticoagulant treatments reduced the risk of stroke and all-cause mortality, although NOAC were better than VKA. Efforts should be done to reduce the variability in the use of anticoagulants even in this high risk group.
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12
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Trujillo H, Sandino J, Cavero T, Caravaca-Fontán F, Gutiérrez E, Sevillano ÁM, Shabaka A, Fernández-Juárez G, Doyágüez PR, Muñoz RG, García LC, Cabello V, Muñoz-Terol JM, Santiago AG, Toldos O, Moreno JA, Praga M. IgA nephropathy is the most common underlying disease in patients with anticoagulant-related nephropathy. Kidney Int Rep 2022; 7:831-840. [PMID: 35497792 PMCID: PMC9039479 DOI: 10.1016/j.ekir.2022.01.1048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 11/12/2022] Open
Abstract
Introduction Anticoagulant-related nephropathy (ARN) is a relatively novel recognized entity characterized by hematuria-associated acute kidney injury (AKI) in the context of overanticoagulation. Preexisting or underlying kidney disease seems to be a predisposing factor; however, few studies have described histologic findings in patients with ARN. We aimed to evaluate underlying kidney pathology in patients on oral anticoagulation who presented an episode of AKI with hematuria in whom a kidney biopsy was performed. Methods Retrospective observational multicenter case study in patients treated with oral anticoagulants who developed macroscopic or intense hematuria followed by AKI. Only patients with available kidney biopsy specimens were included. Histologic findings and clinical data throughout follow-up were analyzed. Results A total of 26 patients were included with a median age of 75 years (62–80) and a follow-up period of 10.1 months. Of the patients, 80% were male, and most cases (92%) were on anticoagulation with vitamin K antagonists (VKAs). At admission, median serum creatinine (SCr) level was 4.2 mg/dl (2.8–8.2), median international normalized ratio (INR) 2.4 (1.5–3.4), and 11 patients (42%) required acute dialysis during hospitalization. Kidney biopsy results revealed that all patients except 1 had an underlying nephropathy: IgA nephropathy (IgAN) in 19, probable IgAN in 1, diabetic nephropathy in 3, nephrosclerosis in 1, and idiopathic nodular glomerulosclerosis in 1. At 12 weeks after discharge, only 6 subjects (24%) attained complete kidney recovery whereas 7 (28%) remained on chronic dialysis. Conclusion IgAN was the most common underlying kidney disease in our biopsy-proven series of ARN, in which a significant percentage of patients did not achieve kidney function recovery.
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13
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Fibrilación auricular no valvular en pacientes en hemodiálisis crónica. ¿Debemos anticoagular? Nefrologia 2022. [DOI: 10.1016/j.nefro.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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14
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Cases A, Gomez P, Broseta JJ, Perez Bernat E, Arjona Barrionuevo JDD, Portolés JM, Gorriz JL. Non-valvular Atrial Fibrillation in CKD: Role of Vitamin K Antagonists and Direct Oral Anticoagulants. A Narrative Review. Front Med (Lausanne) 2021; 8:654620. [PMID: 34604247 PMCID: PMC8484537 DOI: 10.3389/fmed.2021.654620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022] Open
Abstract
Atrial fibrillation (AF) is the most common arrhythmia in chronic kidney disease (CKD), with a close bidirectional relationship between the two entities. The presence of CKD in AF increases the risk of thromboembolic events, mortality and bleeding. Vitamin K antagonists (VKA) have been the mainstay of treatment for the prevention of thromboembolic events in AF until recently, with confirmed benefits in AF patients with stage 3 CKD. However, the risk-benefit profile of VKA in patients with AF and stages 4-5 CKD is controversial due to the lack of evidence from randomized controlled trials. Treatment with VKA in CKD patients has been associated with conditions such as poorer anticoagulation quality, increased risk of bleeding, faster progression of vascular/valvular calcification and higher risk of calciphylaxis. Direct oral anticoagulants (DOACs) have shown equal or greater efficacy in stroke/systemic embolism prevention, and a better safety profile than VKA in post-hoc analysis of the pivotal randomized controlled trials in patients with non-valvular AF and stage 3 CKD, yet evidence of its risk-benefit profile in more advanced stages of CKD is scarce. Observational studies associate DOACs with a good safety/effectiveness profile compared to VKA in non-dialysis CKD patients. Further, DOACs have been associated with a lower risk of acute kidney injury and CKD development/progression than VKA. This narrative review summarizes the evidence of the efficacy and safety of warfarin and DOACs in patients with AF at different CKD stages, as well as their effects on renal function, vascular/valvular calcification and bone health.
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Affiliation(s)
- Aleix Cases
- Departament de Medicina, Universitat de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Pablo Gomez
- Unidad de Factores de Riesgo Vascular, Servicio de Nefrología, Hospital Universitario de Jerez, Jerez de la Frontera, Spain
| | | | | | | | | | - Jose Luis Gorriz
- Departament de Medicina, Universitat de Valencia, Valencia, Spain
- Hospital Clínico Universitario de Valencia, Valencia, Spain
- Instituto de Investigación del Hospital Clinico Universitario, Valencia (INCLIVA), Valencia, Spain
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15
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Harel Z, Sood MM. Is Warfarin Being Relegated to the Pharmaceutical Dustbin? Am J Kidney Dis 2021; 78:174-176. [PMID: 34059334 DOI: 10.1053/j.ajkd.2021.02.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 02/19/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Ziv Harel
- Division of Nephrology, Department of Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
| | - Manish M Sood
- Department of Medicine, The Ottawa Hospital, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
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