Catheter ablation for atrial fibrillation in patients with obesity
Abstract
BACKGROUND: Obesity is a risk factor for atrial fibrillation and other cardiovascular conditions. Our objective was to determine whether catheter-based ablation effectively treated atrial fibrillation in obese patients. METHODS AND RESULTS: Five hundred twenty-three consecutive patients with symptomatic, medication-refractory atrial fibrillation underwent catheter ablation. Patients were grouped by body mass index (lean, < 25 kg/m(2); overweight, 25 to 29.9 kg/m(2); obese, > or = 30 kg/m(2)). Outcome and quality of life were measured with a general health survey (Medical Outcomes Study 36-item Short-Form General Health Survey [SF-36]); patients were assessed before ablation and at 3 and 12 months after the procedure. Two hundred twenty-eight study patients (44%) were overweight, and 201 (38%) were obese. Twelve months after curative ablation, 72% of patients were free of atrial fibrillation without the use of antiarrhythmic agents; 84% were arrhythmia free when those receiving medication were included. Atrial fibrillation was eliminated in 75%, 72%, and 70% of the lean, overweight, and obese patients, respectively, at 12 months (P=0.41, trend test). SF-36 scores were lower for patients with higher body mass index (P<0.05) at baseline. SF-36 scores improved in every functional domain for all body mass index groups after ablation. The mean SF-36 total physical score increased from 59+/-20 at baseline to 77+/-19 in 12 months (P<0.001). The total mental health score improved from 66+/-18 to 79+/-16 in 12 months (P<0.001). CONCLUSIONS: Catheter ablation of atrial fibrillation was effective in obese patients. Coexistence of atrial fibrillation and obesity indicated lower SF-36 scores, but the improvement in quality of life was consistent across all body mass index categories.
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Obesity may increase the rate of AF recurrence after catheter ablation, with obstructive sleep apnoea as an important potential confounder.
“Obesity may increase the rate of AF recurrence after catheter ablation, [298][299][300][301] with obstructive sleep apnoea as an important potential confounder.”
From 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS (2016) · cites this paper as [298]
The symptomatic improvement after catheter ablation of AF in obese patients seems comparable to the improvement in normal-weight patients.
“Notably, the symptomatic improvement after catheter ablation of AF in obese patients seems comparable to the improvement in normal-weight patients.”
From 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS (2016) · cites this paper as [298]
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- Authors
- Cha, Y.-M., Friedman, P. A., Asirvatham, S. J., Shen, W.-K., Munger, T. M., Rea, R. F., Brady, P. A., Jahangir, A., Monahan, K. H., Hodge, D. O., Meverden, R. A., Gersh, B. J., Hammill, S. C., & Packer, D. L.
- Affiliations
- Mayo Clinic (US)
- ORCID
- Venue
- Circulation
- Published
- 2008-05-20
- Volume
- 117
- Issue
- 20
- Pages
- 2583-2590
- ISSN
- 0009-7322 (ISSN-L)
- 1524-4539
- OpenAlex
- W1971175874
- Cited by
- 110
- References
- 27
- Citations by year
- 2026: 4 · 2025: 3 · 2024: 5 · 2023: 6 · 2022: 6 · 2021: 6 · 2020: 9 · 2019: 2 · 2018: 8 · 2017: 8 · 2016: 7 · 2015: 2 · 2014: 3 · 2013: 8 · 2012: 13
- FWCI
- 4.85
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Circulation (publishedVersion)
- PubMed (publishedVersion)
- 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 pacing and defibrillation studies
- Keywords
- atrial fibrillation, obesity, catheter ablation, body mass index, quality of life, SF-36, arrhythmia recurrence, antiarrhythmic drugs, overweight
- MeSH terms
- Adult, Aged, Atrial Fibrillation, Data Collection, Female, Follow-Up Studies, Humans, Male, Middle Aged, Obesity, Quality of Life, Body Mass Index, Treatment Outcome, Catheter Ablation
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