Cited by 1,036Atrial Fibrillation Management and OutcomesCardiac Arrhythmias and TreatmentsCardiac Health and Mental Health

Long-Term Effect of Goal-Directed Weight Management in an Atrial Fibrillation Cohort

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Pathak, Rajeev K., Middeldorp, Melissa E., Meredith, Megan, Mehta, Abhinav B., Mahajan, Rajiv, Wong, Christopher X., Twomey, Darragh, Elliott, Adrian D. +4 more·2015·Journal of the American College of Cardiology

Abstract

Background Obesity and atrial fibrillation (AF) frequently coexist. Weight loss reduces the burden of AF, but whether this is sustained, has a dose effect, or is influenced by weight fluctuation is unknown.Objectives This study sought to evaluate the long-term impact of weight loss and weight fluctuation on rhythm control in obese individuals with AF.Methods Of 1,415 consecutive patients with AF, 825 had a body mass index ≥ 27 kg/m(2) and were offered weight management. After screening for exclusion criteria, 355 were included in this analysis. Weight loss was categorized as group 1 (≥ 10%), group 2 (3% to 9%), and group 3 (<3%). Weight trend and/or fluctuation was determined by yearly follow-up. We determined the impact on the AF severity scale and 7-day ambulatory monitoring.Results There were no differences in baseline characteristics or follow-up among the groups. AF burden and symptom severity decreased more in group 1 compared with groups 2 and 3 (p < 0.001 for all). Arrhythmia-free survival with and without rhythm control strategies was greatest in group 1 compared with groups 2 and 3 (p < 0.001 for both). In multivariate analyses, weight loss and weight fluctuation were independent predictors of outcomes (p < 0.001 for both). Weight loss ≥ 10% resulted in a 6-fold (95% confidence interval: 3.4 to 10.3; p < 0.001) greater probability of arrhythmia-free survival compared with the other 2 groups. Weight fluctuation >5% partially offset this benefit, with a 2-fold (95% confidence interval: 1.0 to 4.3; p = 0.02) increased risk of arrhythmia recurrence.Conclusions Long-term sustained weight loss is associated with significant reduction of AF burden and maintenance of sinus rhythm. (Long-Term Effect of Goal directed weight management on Atrial Fibrillation Cohort: A 5 Year follow-up study [LEGACY Study]; ACTRN12614001123639).

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Authors
Pathak, R. K., Middeldorp, M. E., Meredith, M., Mehta, A. B., Mahajan, R., Wong, C. X., Twomey, D., Elliott, A. D., Kalman, J. M., Abhayaratna, W. P., Lau, D. H., & Sanders, P.
Affiliations
  • Royal Adelaide Hospital (AU)
  • Australian National University (AU)
  • The Royal Melbourne Hospital (AU)
Corresponding author
Sanders, Prashanthan
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
2015-05
Volume
65
Issue
20
Pages
2159-2169
ISSN
0735-1097 (ISSN-L)
OpenAlex
W2102904190
Cited by
1,036
References
34
Citations by year
2026: 97 · 2025: 100 · 2024: 91 · 2023: 95 · 2022: 73 · 2021: 108 · 2020: 97 · 2019: 96 · 2018: 73 · 2017: 85 · 2016: 81 · 2015: 39
FWCI
66.78
Type
journal article
Language
en
Open access
Locations
  • Journal of the American College of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
  • ANU Open Research (Australian National University) (submittedVersion)
Funders
  • Lions Medical Research Foundation
  • National Heart Foundation of Australia
  • University of Adelaide
  • Rhodes College
  • National Health and Medical Research Council
  • Centre for Heart Rhythm Disorders, University of Adelaide
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Health and Mental Health
Keywords
atrial fibrillation, obesity, weight loss, weight variation, arrhythmia burden, rhythm control, arrhythmia-free survival, sinus rhythm maintenance, body mass index
MeSH terms
Aged, Atrial Fibrillation, Female, Follow-Up Studies, Goals, Humans, Male, Middle Aged, Obesity, Severity of Illness Index, Time, Time Factors, Weight Loss

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