Related Experiment Video
Updated: Jun 16, 2026

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
Published on: May 3, 2018
Pericardial fat is associated with carotid stiffness in the Multi-Ethnic Study of Atherosclerosis
T E Brinkley1, F-C Hsu, J J Carr
1Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. tbrinkle@wfubmc.edu
Insights
Pericardial fat (Pfat) is linked to increased arterial stiffness, a key factor in vascular aging and cardiovascular disease risk. This association persists even after accounting for traditional risk factors and obesity.
Area of Science:
- Cardiovascular Science
- Vascular Biology
- Medical Imaging
Background:
- Arterial stiffness is a significant indicator of vascular aging and a predictor of cardiovascular disease (CVD).
- Pericardial fat (Pfat), the adipose tissue surrounding the heart, may influence arterial stiffness through local paracrine signaling.
- Understanding the relationship between Pfat and arterial stiffness is crucial for assessing CVD risk.
Purpose of the Study:
- To investigate the association between pericardial fat (Pfat) and carotid artery stiffness.
- To determine if this association is independent of traditional cardiovascular disease risk factors and obesity.
Main Methods:
- Utilized computed tomography (CT) to quantify pericardial fat (Pfat) in 5770 Multi-Ethnic Study of Atherosclerosis participants.
- Employed carotid artery ultrasonography to measure carotid stiffness, specifically the distensibility coefficient (DC) and Young's modulus (YM).
- Performed statistical analyses adjusting for demographic, clinical, behavioral, and metabolic variables.
Main Results:
- Higher pericardial fat (Pfat) was significantly associated with lower carotid artery distensibility (DC) in men and higher Young's modulus (YM) in women.
- A 1 standard deviation increase in Pfat was linked to a 0.00007 1/mm Hg lower DC in men (p=0.0002) and a 48.1 mm Hg/mm higher YM in women (p=0.002).
- These associations remained significant after adjusting for traditional CVD risk factors, inflammatory markers, and measures of atherosclerosis, and were not substantially altered by adjustments for body mass index or waist circumference.
Conclusions:
- Elevated levels of pericardial fat (Pfat) are independently associated with increased carotid artery stiffness.
- The findings suggest that Pfat may play a direct role in arterial stiffening, beyond its association with overall obesity.
- This highlights Pfat as a potential target for cardiovascular risk assessment and intervention.
Background And Aims:
Arterial stiffness is a prominent feature of vascular aging and a risk factor for cardiovascular disease (CVD). Fat around the heart and blood vessels (i.e. pericardial fat, Pfat) may contribute to arterial stiffness via a local paracrine effect of adipose tissue on the surrounding vasculature. Thus, we determined the association between Pfat and carotid stiffness in 5770 participants (mean age 62 years, 53% female, 25% African American, 24% Hispanic, and 13% Chinese) from the Multi-Ethnic Study of Atherosclerosis.
Methods And Results:
Pfat was measured by computed tomography, and ultrasonography of the common carotid artery was used to calculate the distensibility coefficient (DC) and Young's modulus (YM). Lower DC and higher YM values indicate stiffer arteries. Pfat quartile was highly associated with demographic, behavioral, anthropometric, hemodynamic, metabolic, and disease variables in both men and women. After adjusting for height, clinical site, CVD risk factors, and medications, a 1 standard deviation (41.91 cm(3)) increment in Pfat was associated with a 0.00007±0.00002 1/mm Hg lower DC (p=0.0002) in men and a 48.1±15.1 mm Hg/mm higher YM in women (p=0.002). Additional adjustment for C-reactive protein, coronary artery calcification, and carotid intima-media thickness had only modest effects. More importantly, adjusting for body mass index and waist circumference did not significantly change the overall results.
Conclusion:
Higher Pfat is associated with higher carotid stiffness, independent of traditional CVD risk factors and obesity.
Related Concept Videos
Coronary Artery Disease I: Introduction
Cholesterol: Significance and Regulation
Considering cholesterol and...
Psychoneuroimmunology: Cardiovascular Disease
A key area of focus in PNI is the relationship between stress and coronary...
Pericarditis II: Clinical Features and Diagnostic Tests
Cardiomyopathy IV: Restrictive Cardiomyopathy
Atherosclerosis III: Management
