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Author Spotlight: Exploring the Relationship Between Lipotoxicity and HFpEF
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Regional adiposity and heart failure with preserved ejection fraction.
Vishal N Rao1, Marat Fudim1, Robert J Mentz1
1Division of Cardiology, Duke University School of Medicine, Durham, NC, USA.
European Journal of Heart Failure
|July 4, 2020
Summary
Obesity significantly contributes to heart failure with preserved ejection fraction (HFpEF). Regional fat distribution, particularly epicardial and visceral fat, strongly correlates with HFpEF risk and progression.
Area of Science:
- Cardiology
- Metabolic Disorders
- Obesity Research
Background:
- Rising global prevalence of obesity and heart failure with preserved ejection fraction (HFpEF).
- Obesity is increasingly recognized as a key factor in HFpEF pathogenesis, forming an obese-HFpEF phenotype.
- Traditional anthropometrics link to HFpEF, but regional fat distribution may be more critical.
Purpose of the Study:
- To investigate the role of regional adiposity in the pathogenesis of HFpEF.
- To explore the association between different fat depots (epicardial, visceral, subcutaneous) and HFpEF risk.
- To identify potential therapeutic targets for the obese-HFpEF phenotype.
Main Methods:
- Review of anthropometric measurements (BMI, waist circumference, waist-to-hip ratio).
- Quantification of regional fat using non-invasive imaging (CT, MRI, DXA).
- Analysis of associations between fat distribution and HFpEF risk profiles.
Main Results:
- Epicardial and visceral fat accumulation show a stronger association with HFpEF risk than subcutaneous fat.
- Regional adiposity contributes to HFpEF pathophysiology via inflammation, neurohormonal imbalance, and impaired cardiac function.
- Obesity-related fat distribution impacts cardiopulmonary fitness and left ventricular compliance.
Conclusions:
- Regional adiposity plays a pivotal role in HFpEF development and progression.
- Targeting specific fat depots may offer novel therapeutic strategies for obese patients with HFpEF.
- Further research is needed on the impact of fat reduction interventions on HFpEF outcomes.
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