Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis

Background: Atrial fibrillation (AF) is common in patients with end-stage kidney disease (ESKD) on dialysis. Whether pre-ESKD nephrology care associates with AF is uncertain. Methods: We conducted a retrospective cohort study of older US patients (≥67 years) with Medicare A&B who initiated dialy...

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Main Authors: Samaya Anumudu, Medha Airy, Kevin F. Erickson, Sankar D. Navaneethan, Tara I. Chang, Wolfgang C. Winkelmayer, Jingbo Niu
Format: Article
Language:English
Published: Elsevier 2019-05-01
Series:Kidney International Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S2468024919300506
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author Samaya Anumudu
Medha Airy
Kevin F. Erickson
Sankar D. Navaneethan
Tara I. Chang
Wolfgang C. Winkelmayer
Jingbo Niu
author_facet Samaya Anumudu
Medha Airy
Kevin F. Erickson
Sankar D. Navaneethan
Tara I. Chang
Wolfgang C. Winkelmayer
Jingbo Niu
author_sort Samaya Anumudu
collection DOAJ
description Background: Atrial fibrillation (AF) is common in patients with end-stage kidney disease (ESKD) on dialysis. Whether pre-ESKD nephrology care associates with AF is uncertain. Methods: We conducted a retrospective cohort study of older US patients (≥67 years) with Medicare A&B who initiated dialysis (1996–2013) without a prior diagnosis of AF. Patients were categorized by the duration and number of predialysis nephrology outpatient visits. Patients were followed for 1 year for a new diagnosis of AF. We used multivariable Cox proportional hazards regression while accounting for the competing risks of kidney transplantation and death. Results: We identified 316,067 patients with ESKD initiating dialysis between 1996 and 2013 who had no prior AF diagnosis. In this cohort, 66.9% had any pre-ESKD outpatient nephrology care, with the first outpatient nephrology visit before dialysis initiation occurring at ≤6 months in 17.9%, 7 to 12 months in 9.4%, and >12 months in 39.6%. Outpatient pre-ESKD nephrology care for ≤6, 7 to 12, and >12 months versus none yielded adjusted cause-specific hazard ratios (HRs) of 0.87 (95% CI: 0.84–0.89), 0.83 (95% CI: 0.81–0.86), and 0.85 (95% CI: 0.83–0.87) for incident AF, respectively. Further, having 1 to 4 pre-ESKD outpatient nephrology visits, 5 to 9 visits, and ≥10 visits versus none yielded adjusted cause-specific HRs of 0.89 (95% CI: 0.86–0.91), 0.86 (95% CI: 0.83–0.88), and 0.81 (95% CI: 0.79–0.83), respectively. Conclusions: Having any predialysis nephrology care before initiation of dialysis was associated with slightly lower adjusted rates of incident AF over the first year of dialysis. The optimal timing and intensity of nephrology care to reduce the incidence of AF and other adverse health events requires further study. Keywords: arrhythmia, ESRD, hemodialysis, outcomes, peritoneal dialysis
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spelling doaj.art-aa7a9ebbcd3e44dab734ef77e859015f2022-12-21T19:29:18ZengElsevierKidney International Reports2468-02492019-05-0145679687Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating DialysisSamaya Anumudu0Medha Airy1Kevin F. Erickson2Sankar D. Navaneethan3Tara I. Chang4Wolfgang C. Winkelmayer5Jingbo Niu6Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USASection of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USASection of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USASection of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USADivision of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, California, USASection of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA; Correspondence: Wolfgang C. Winkelmayer, Section of Nephrology, Baylor College of Medicine, One Baylor Plaza, Suite ABBR R705, MS: 395; Houston, Texas 77030, USA.Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USABackground: Atrial fibrillation (AF) is common in patients with end-stage kidney disease (ESKD) on dialysis. Whether pre-ESKD nephrology care associates with AF is uncertain. Methods: We conducted a retrospective cohort study of older US patients (≥67 years) with Medicare A&B who initiated dialysis (1996–2013) without a prior diagnosis of AF. Patients were categorized by the duration and number of predialysis nephrology outpatient visits. Patients were followed for 1 year for a new diagnosis of AF. We used multivariable Cox proportional hazards regression while accounting for the competing risks of kidney transplantation and death. Results: We identified 316,067 patients with ESKD initiating dialysis between 1996 and 2013 who had no prior AF diagnosis. In this cohort, 66.9% had any pre-ESKD outpatient nephrology care, with the first outpatient nephrology visit before dialysis initiation occurring at ≤6 months in 17.9%, 7 to 12 months in 9.4%, and >12 months in 39.6%. Outpatient pre-ESKD nephrology care for ≤6, 7 to 12, and >12 months versus none yielded adjusted cause-specific hazard ratios (HRs) of 0.87 (95% CI: 0.84–0.89), 0.83 (95% CI: 0.81–0.86), and 0.85 (95% CI: 0.83–0.87) for incident AF, respectively. Further, having 1 to 4 pre-ESKD outpatient nephrology visits, 5 to 9 visits, and ≥10 visits versus none yielded adjusted cause-specific HRs of 0.89 (95% CI: 0.86–0.91), 0.86 (95% CI: 0.83–0.88), and 0.81 (95% CI: 0.79–0.83), respectively. Conclusions: Having any predialysis nephrology care before initiation of dialysis was associated with slightly lower adjusted rates of incident AF over the first year of dialysis. The optimal timing and intensity of nephrology care to reduce the incidence of AF and other adverse health events requires further study. Keywords: arrhythmia, ESRD, hemodialysis, outcomes, peritoneal dialysishttp://www.sciencedirect.com/science/article/pii/S2468024919300506
spellingShingle Samaya Anumudu
Medha Airy
Kevin F. Erickson
Sankar D. Navaneethan
Tara I. Chang
Wolfgang C. Winkelmayer
Jingbo Niu
Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis
Kidney International Reports
title Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis
title_full Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis
title_fullStr Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis
title_full_unstemmed Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis
title_short Predialysis Nephrology Care and Incident Atrial Fibrillation in Older Patients With ESKD Initiating Dialysis
title_sort predialysis nephrology care and incident atrial fibrillation in older patients with eskd initiating dialysis
url http://www.sciencedirect.com/science/article/pii/S2468024919300506
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