The Study
CT-Assessment of Epicardial Fat Identifies Increased Inflammation at the Level of the Left Coronary Circulation in Patients with Atrial Fibrillation
This study looked at people who already had heart scans and found that those with AF had more inflammation around their heart arteries. But it didn't watch them over time to see if the inflammation came first or if AF caused the inflammation — so we can't say one causes the other, just that they often happen together.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
Around the heart's arteries, there's a layer of fat. When it gets inflamed, it can send signals that mess with the heart's rhythm. This study looked at people with and without a common heart rhythm problem called atrial fibrillation.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 544 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes—this suggests that inflammation in the heart's fat, not just clogged arteries, might be a hidden trigger for irregular heartbeats.
- 2People with atrial fibrillation had 40% higher inflammation in the fat around their main left heart artery (15.5 vs.
- 311.1 on a special scale), even when their artery blockages were similar.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Journal of Clinical Medicine
Year
2024
Authors
R. Gerculy, I. Benedek, I. Kovács, N. Raț, V. Halațiu, I. Rodean, L. Bordi, E. Blîndu, A. Roșca, B. Mátyás, Evelin Szabó, Z. Parajkó, T. Benedek
Related Content
Claims (5)
In people with atrial fibrillation, fat tissue surrounding the left anterior descending artery shows higher levels of inflammation than in people without atrial fibrillation, and this inflammation is concentrated on the left side of the heart.
Patients with atrial fibrillation have higher levels of a specific imaging biomarker called the FAI Score, which measures inflammation around the heart arteries, even when other known heart risk factors are considered.
In people with coronary artery disease, those who have atrial fibrillation show higher levels of fat inflammation around the left anterior descending coronary artery compared to those without atrial fibrillation, as measured by the FAI Score.
Patients with atrial fibrillation have higher levels of inflammation around the heart arteries, measured by the FAI Score, even when their artery blockages and calcium buildup are similar to those without atrial fibrillation.
Epicardial fat produces inflammatory molecules including interleukin-6 and tumor necrosis factor alpha that act directly on the heart muscle and coronary arteries, contributing to the development of cardiovascular disease.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.