Weight Loss in Older Patients With Persistent Atrial Fibrillation
JAMA 10.1001/jama.2026.5787May 20, 2026 at 11:00 AM EDT
In older patients with overweight and atrial fibrillation (AF) undergoing cardioversion, does dietary weight loss improve AF-related symptoms compared with usual care?In this randomized clinical trial that included 118 individuals, the baseline-adjusted mean Atrial Fibrillation Severity Scale symptom severity score at 8 months was not significantly different between the groups (7.9 [SE, 0.84] in the intervention group vs 8.9 [SE, 0.84] in the control group, = .43) despite the intervention resulting in significantly lower body weight (92.6 [SE, 0.85] kg vs 99.4 [SE, 0.85] kg; < .001).Moderate dietary weight loss was not an effective treatment strategy in this trial in older patients with persistent AF.
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