ArticleHeart rhythm O22020
Bariatric surgery to aLleviate OCcurrence of Atrial Fibrillation Hospitalization-BLOC-AF.
Article in Heart rhythm O2, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.
- Effect of Prolonged and Substantial Weight Loss on Incident Atrial Fibrillation: A Systematic Review and Meta-Analysis.Nutrients · 2023Pooled it
- The Role of Early Risk Factor Modification and Ablation in Atrial Fibrillation Substrate Remodeling Prevention.Biomedicines · 2025Review
- Weight reduction interventions for the management of atrial fibrillation in overweight and obese people.The Cochrane database of systematic reviews · 2024Review
- Five-year changes in weight and risk of atrial fibrillation in the Danish Diet, Cancer, and Health Cohort.European journal of preventive cardiology · 2024Article
- Adiposity-associated atrial fibrillation: molecular determinants, mechanisms, and clinical significance.Cardiovascular research · 2023Review
Corrections and comments
- Erratum issuedErratum.2021
Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundObesity is associated with a higher incidence of atrial fibrillation (AF). Weight reduction improves outcomes in patients known to have AF.
objectiveThe purpose of this study was to compare the incidence of heart failure (HF) or first-time AF hospitalization in obese patients undergoing bariatric surgery (BAS) vs other abdominal surgeries.
methodsA retrospective cohort study was conducted using linked hospital discharge records from 1994-2014. Obese patients without known AF or atrial flutter (AFL) who had undergone abdominal hernia or laparoscopic cholecystectomy surgery were identified for each case that underwent BAS (2:1). Clinical outcomes were HF, first-time hospitalization for AF, AFL, gastrointestinal bleeding (GIB), and ischemic or hemorrhagic stroke. Outcomes were analyzed using conditional proportional hazard modeling accounting for the competing risk of death, adjusting for demographics and comorbidities.
resultsThere were 1581 BAS cases and 3162 controls (48% age <50 years; 60% white; 79% female; mean CHA
conclusionIn patients undergoing BAS, the risk of either HF or AF was reduced by ∼29% but with greater risk of GIB. The findings support the hypothesis that weight loss reduces the long-term risk of HF or incident AF hospitalization.
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Registered trials
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