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Published on: April 27, 2016
Epicardial Adipose Tissue and Cardiovascular Disease
Thierry H Le Jemtel1, Rohan Samson2, Karnika Ayinapudi2
1Section of Cardiology, Department of Medicine, Tulane University School of Medicine; Tulane University Heart and Vascular Institute, 1430 Tulane Avenue, SL-48, New Orleans, LA, 70112, USA. lejemtel@tulane.edu.
Insights
Epicardial adipose tissue strongly links to atrial fibrillation. However, its role in coronary artery disease and heart failure with preserved ejection fraction is less clear, requiring more research.
Area of Science:
- Cardiology
- Biomedical Science
- Translational Research
Background:
- Epicardial adipose tissue (EAT) is metabolically active and influences cardiovascular health.
- Previous research suggests EAT involvement in various cardiovascular diseases.
Purpose of the Study:
- To critically appraise the association between epicardial adipose tissue and cardiovascular diseases.
- To evaluate the strength of evidence for EAT in coronary artery disease (CAD), atrial fibrillation (AF), and heart failure with preserved ejection fraction (HFpEF).
Main Methods:
- Review of cross-sectional, clinical, and translational correlative studies.
- Analysis of recent findings questioning established associations.
- Identification of the need for longitudinal studies.
Main Results:
- A robust association exists between epicardial adipose tissue and atrial fibrillation, including recurrence post-ablation.
- Evidence linking epicardial adipose tissue to coronary artery disease progression is questioned by recent studies.
- Epicardial adipose tissue does not appear to be a key factor in the pathogenesis of heart failure with preserved ejection fraction in obese individuals.
Conclusions:
- The association between epicardial adipose tissue and atrial fibrillation is well-established.
- The link between epicardial adipose tissue and coronary artery disease, and heart failure with preserved ejection fraction is tenuous.
- Further longitudinal research is necessary to confirm or refute these associations.
Purpose Of Review:
Epicardial adipose tissue has been associated with the development/progression of cardiovascular disease. We appraise the strength of the association between epicardial adipose tissue and development/progression of cardiovascular diseases like coronary artery disease, atrial fibrillation, and heart failure with preserved ejection fraction.
Recent Findings:
Cross-sectional clinical and translational correlative studies have established an association between epicardial adipose tissue and progression of coronary artery disease. Recent studies question this association and underline the need for longitudinal studies. Epicardial adipose tissue also plays a definite role in the pathobiology of atrial fibrillation and its recurrence after ablation. In contrast to an early paradigm, epicardial adipose tissue does not appear to play a key role in the pathogenesis of heart failure with preserved ejection fraction in obese patients. The association of epicardial adipose tissue with atrial fibrillation is robust. In contrast, the association of epicardial adipose tissue with coronary artery disease and heart failure with preserved ejection fraction is tenuous. Additional research, including longitudinal studies, is needed to confirm or refute these proposed associations.
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