Research
Energy balance
Weight loss, particularly >10% body weight reduction, significantly reduces atrial fibrillation burden and increases the probability of arrhythmia-free survival.
If you have atrial fibrillation and are obese, losing more than 10% of your body weight and keeping it off dramatically increases your chances of being free from AF. This benefit is seen even if you don't undergo ablation or take more anti-arrhythmic drugs.
GoodSupportsHIGH confidence
individuals maintaining more than 10% weight loss had a sixfold greater probability of arrhythmia-free survival compared with patients with 3- 9% or less than 3% weight loss.
Why this rating
Supported by cohort studies (LEGACY, REVERSE-AF) and randomized trials, though some data on bariatric surgery's effect on *incident* AF is conflicting.
Source
Obesity as a risk factor for cardiac arrhythmias
Kiran Haresh Kumar Patel et al. · BMJ Medicine · 2022
DOI 10.1136/bmjmed-2022-000308
narrative_reviewCited 35×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Obesity is an independent proarrhythmic risk factor for both atrial and ventricular arrhythmias, mediated by structural remodeling (atrial/ventricular dilation, epicardial fat infiltration) and electrophysiological changes (prolonged QTc, P-wave dispersion).Strong
- Epicardial adipose tissue volume is a stronger predictor of atrial fibrillation risk than general anthropometric indices like BMI or waist circumference.Good
- Bariatric surgery reduces all-cause and cardiovascular mortality and heart failure incidence, but its effect on reducing *incident* atrial fibrillation is not statistically significant.Good
Related findings · Energy balance
- Achieving a total body weight loss of 10-15% (or >10-15 kg) through Total Diet Replacement (TDR) induces remission of Type 2 Diabetes in individuals with short-duration disease.Strong
- Bariatric surgery is superior to medical management alone for inducing significant long-term weight loss, remission of type 2 diabetes, and reduction in mortality for patients with BMI ≥ 40 or ≥ 35 with comorbidities.Strong
- Achieving type 2 diabetes remission requires significant weight loss (≥15 kg) via major caloric restriction, independent of macronutrient composition.Strong
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