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Original research
Associations of atrial fibrillation with renal function decline in patients with chronic kidney disease
  1. Tz-Heng Chen1,2,3,4,
  2. Yuan-Chia Chu5,6,7,
  3. Shuo-Ming Ou2,3,4,8,9,
  4. Der-Cherng Tarng2,3,4,10,11
  1. 1Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital Yuli Branch, Hualien, Taiwan
  2. 2Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
  3. 3School of Medicine, National Yang-Ming University, Taipei, Taiwan
  4. 4School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
  5. 5Information Management Office, Taipei Veterans General Hospital, Taipei, Taiwan
  6. 6Big Data Center, Taipei Veterans General Hospital, Taipei, Taiwan
  7. 7Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
  8. 8Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
  9. 9Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
  10. 10Department and Institute of Physiology, National Yang-Ming University, Taipei, Taiwan
  11. 11Department and Institute of Physiology, National Yang Ming Chiao Tung University, Taipei, Taiwan
  1. Correspondence to Dr Shuo-Ming Ou, Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; okokyytt{at}gmail.com; Professor Der-Cherng Tarng, Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; dctarng{at}vghtpe.gov.tw

Abstract

Background Chronic kidney disease (CKD) is known to increase the risk of atrial fibrillation (AF) development, but the relationship between AF and subsequent renal function decline in patients with CKD is not well understood. In this study, we explored the role of AF on renal outcomes among patients with CKD.

Methods In a retrospective hospital-based cohort study, we identified patients with CKD aged ≥20 years from 1 January 2008 to 31 December 2018. The patients were divided into AF and non-AF groups. We matched each patient with CKD and AF to two non-AF CKD controls according to propensity scores. The outcomes of interest included estimated glomerular filtration rate (eGFR) decline of ≥20%, ≥30%, ≥40% and ≥50%, and end-stage renal disease (ESRD).

Results After propensity score matching, 6731 patients with AF and 13 462 matched controls were included in the analyses. Compared with the non-AF group, the AF group exhibited greater risks of eGFR decline ≥20% (HR 1.43; 95% CI 1.33 to 1.53), ≥30% (HR 1.50; 95% CI 1.36 to 1.66), ≥40% (HR 1.62; 95% CI 1.41 to 1.85) and ≥50% (HR 1.82; 95% CI 1.50 to 2.20), and ESRD (HR 1.22; 95% CI 1.12 to 1.34). Higher CHA2DS2-VASc scores were associated with greater risks of eGFR decline and ESRD.

Conclusions In patients with CKD, AF was associated with greater risks of subsequent renal function decline. CHA2DS2-VASc scores may be a useful risk stratification scheme for predicting the risk of renal function decline.

  • atrial fibrillation

Data availability statement

All data relevant to the study are included in the article or uploaded as supplemental information.

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Data availability statement

All data relevant to the study are included in the article or uploaded as supplemental information.

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Footnotes

  • Contributors Conception and study design—S-MO and T-HC. Data acquisition—S-MO and D-CT. Data analysis/interpretation—S-MO, Y-CC and T-HC. Statistical analysis—S-MO and T-HC. Drafting of the manuscript—T-HC, Y-CC and S-MO. Critical revision of the manuscript for important intellectual content—S-MO and D-CT. Final approval of the version to be published—S-MO and D-CT.

  • Funding This work was supported in part by the Ministry of Science and Technology, Taiwan (MOST 106-2314-B-010-039-MY3, MOST 107-2314-B-075-052, MOST 108-2314-B-075-008, MOST 109-2314-B-075 -067 -MY3, MOST 109-2320-B-075-006); Taipei, Taichung, Kaohsiung Veterans General Hospital, Tri-Service General Hospital, Academia Sinica Joint Research Program (VTA110-V1-3-1); Taipei Veterans General Hospital (V107B-027, V108B-023, V108C-103, V108D42-004-MY3-2, V109B-022, V109C-114, V109D50-001-MY3-1, V109D50-001-MY3-2, V110C-152, V110E-003-2); Taipei Veterans General Hospital-National Yang-Ming University Excellent Physician Scientists Cultivation Program (No.104-V-B-044). This work was also financially supported by the 'Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B)' from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan, and Foundation for Poison Control (FPC-109-002). This study is based in part on data from the Big Data Center, Taipei Veterans General Hospital (BDC, TPEVGH).

  • Disclaimer The funders did not play any roles in the study design, data collection or analysis, decision to publish, or preparation of the manuscript. The interpretations and conclusions contained herein do not represent the position of Taipei Veterans General Hospital.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Supplemental material This content has been supplied by the author(s). It has not been vetted by BMJ Publishing Group Limited (BMJ) and may not have been peer-reviewed. Any opinions or recommendations discussed are solely those of the author(s) and are not endorsed by BMJ. BMJ disclaims all liability and responsibility arising from any reliance placed on the content. Where the content includes any translated material, BMJ does not warrant the accuracy and reliability of the translations (including but not limited to local regulations, clinical guidelines, terminology, drug names and drug dosages), and is not responsible for any error and/or omissions arising from translation and adaptation or otherwise.

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