Evidence map›Paper›PMID 27931605›Full record

ArticleJournal of the American College of Cardiology2016

Bariatric Surgery and the Risk of New-Onset Atrial Fibrillation in Swedish Obese Subjects.

Shabbar Jamaly, Lena Carlsson, Markku Peltonen, Peter Jacobson, Lars Sjöström, Kristjan Karason

Open access · hybridAbstract readMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of the American College of Cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 7 pooled it
14.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

83 citing papers in PubMed, 7 syntheses or guidelines pooled it, 188 citations in OpenAlex.

  1. Dietary interventions in the management of atrial fibrillation.Frontiers in cardiovascular medicine · 2024
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  13. Modifiable Risk Factors in Atrial Fibrillation: Clinical Implications and Pathophysiological Insights.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2026
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23 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Shabbar JamalyDepartment of Cardiology, Sahlgrenska University Hospital and Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
Lena CarlssonDepartment of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
Markku PeltonenChronic Disease Epidemiology and Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland.
Peter JacobsonDepartment of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
Lars SjöströmDepartment of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
Kristjan KarasonDepartment of Cardiology, Sahlgrenska University Hospital and Institute of Medicine, University of Gothenburg, Gothenburg, Sweden. Electronic address: kristjan.karason@gu.se.
University of Gothenburg · SESahlgrenska University Hospital · SEFinnish Institute for Health and Welfare · FI

Funding

Benefits, Risks & Costs of Bariatric Surgery: Register-Enriched Cohort Studies.R01DK105948 · NIDDK · GOTEBORG UNIVERSITY · PI CARLSSON EKANDER, LENA, NEOVIUS, MARTIN · 2015 to 2018
$1.8M
NIDDK NIH HHS R01 DK105948
6 · The paper itself

Abstract

backgroundObesity is a risk factor for atrial fibrillation, which in turn is associated with stroke, heart failure, and increased all-cause mortality.

objectivesThe authors investigated whether weight loss through bariatric surgery may reduce the risk of new-onset atrial fibrillation.

methodsSOS (Swedish Obese Subjects) is a prospective matched cohort study conducted at 25 surgical departments and 480 primary healthcare centers in Sweden. The cohort was recruited between 1987 and 2001. Among 4,021 obese individuals with sinus rhythm and no history of atrial fibrillation, 2,000 underwent bariatric surgery (surgery group), and 2,021 matched obese control subjects received usual care (control group). The outcome, first-time atrial fibrillation, was ascertained by crosschecking the SOS database with the Swedish National Patient Register on inpatient and outpatient diagnosis codes.

resultsDuring a median follow-up of 19 years, first time atrial fibrillation occurred in 247 patients (12.4%) in the surgical group, and in 340 (16.8%) control subjects. The risk of developing atrial fibrillation was 29% lower in the surgery group versus the control group (hazard ratio: 0.71; 95% confidence interval: 0.60 to 0.83; p < 0.001). Younger individuals benefited more from surgical intervention than those who were older (p value for interaction 0.001). Also, those with a high diastolic blood pressure benefitted more from surgery than did those with a low diastolic blood pressure (p for interaction = 0.028).

conclusionsCompared with usual care, weight loss through bariatric surgery reduced the risk of atrial fibrillation among persons being treated for severe obesity. The risk reduction was more apparent in younger people and in those with higher blood pressure.

Indexed as

ForecastingAtrial FibrillationBariatric SurgeryFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedObesityProspective StudiesRisk AssessmentRisk FactorsSwedenatrial fibrillationbariatric surgeryobesityweight loss

Identifiers

PMID27931605
PMCPMC5157934
OpenAlexW2560766040

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.