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. 2009 Apr;30(7):850-6.
doi: 10.1093/eurheartj/ehn573. Epub 2009 Jan 9.

Association of pericardial fat, intrathoracic fat, and visceral abdominal fat with cardiovascular disease burden: the Framingham Heart Study

Affiliations

Association of pericardial fat, intrathoracic fat, and visceral abdominal fat with cardiovascular disease burden: the Framingham Heart Study

Amir A Mahabadi et al. Eur Heart J. 2009 Apr.

Abstract

Aims: The aim of this study was to assess whether pericardial fat, intrathoracic fat, and visceral abdominal adipose tissue (VAT) are associated with the prevalence of cardiovascular disease (CVD).

Methods and results: Participants from the Framingham Heart Study Offspring cohort underwent abdominal and chest multidetector computed tomography to quantify volumes of pericardial fat, intrathoracic fat, and VAT. Relations between each fat depot and CVD were assessed using logistic regression. The analysis of 1267 participants (mean age 60 years, 53.8% women, 9.7% with prevalent CVD) demonstrated that pericardial fat [odds ratio (OR) 1.32, 95% confidence interval (CI) 1.11-1.57; P = 0.002] and VAT (OR 1.35, 95% CI 1.11-1.57; P = 0.003), but not intrathoracic fat (OR 1.14, 95% CI 0.93-1.39; P = 0.22), were significantly associated with prevalent CVD in age-sex-adjusted models and after adjustment for body mass index and waist circumference. After multivariable adjustment, associations were attenuated (P > 0.14). Only pericardial fat was associated with prevalent myocardial infarction after adjusting for conventional measures of adiposity (OR 1.37, 95% CI 1.03-1.82; P = 0.03).

Conclusion: Pericardial fat and VAT, but not intrathoracic fat, are associated with CVD independent of traditional measures of obesity but not after further adjustment for traditional risk factor. Taken together with our prior work, these findings may support the hypothesis that pericardial fat contributes to coronary atherosclerosis.

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Figures

Figure 1
Figure 1
Pericardial fat and intrathoracic fat in an axial image, showing that the pericardial sac was defined as the border between pericardial and intrathoracic fat (A) and three-dimensional reconstructions of pericardial fat (B) and total thoracic fat (C). Intrathoracic fat was calculated by subtracting pericardial fat from total thoracic fat. For this subject, pericardial fat volume was 153 cm3, intrathoracic fat volume was 287 cm3, and VAT volume was 1865 cm3.

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