Key result
High pericardial fat thickness was significantly associated with worse left ventricular diastolic function, including decreased septal e' (p<0.0001) and increased E/e' ratio (p<0.0001).
Why the study?
Diastolic dysfunction may be predisposed by increased abdominal fat and subsequent pericardial and epicardial adiposity, but their association with left ventricular diastolic function required determination.
Does high pericardial fat thickness correlate with worse left ventricular diastolic function?
Cross-Sectional (n=82)
Does high pericardial fat thickness correlate with worse left ventricular diastolic function?
p-value: p=<0.0001
Increased pericardial fat thickness is significantly associated with echocardiographic markers of left ventricular diastolic dysfunction.
Hypothesis-generating for pericardial fat in diastolic dysfunction; prospective studies needed to assess causality.
Background: Heart failure is a major cause of morbidity and mortality worldwide; left ventricular diastolic dysfunction plays a leading role in this clinical context. Diastolic dysfunction may be predisposed by increased abdominal fat and, consequently, increased pericardial and epicardial adiposity. This study aimed to determine whether pericardial and epicardial fat are associated with left ventricular diastolic function. Methods: 82 patients had their abdominal circumference measured and underwent transthoracic echocardiography to measure the thickness of pericardial and epicardial fat and assess the left ventricular diastolic function. Two groups were created based on mean pericardial fat thickness (4.644 mm) and were related to abdominal circumference and echocardiographic parameters. Results: Subjects in the PF High group showed a significant decrease in septal e' (p<0.0001), lateral e' (p<0.0001) and E/A ratio (p=0.003) and a significant increase in E/e' ratio (p<0. 0001), E wave deceleration time (p=0. 013), left atrial volume (p<0.0001), LV mass (p=0.003), tricuspid regurgitant jet velocity (p<0.0001) and LV diameter (p=0.014) compared to the PF Low group. Conclusions: Measurement of abdominal circumference, pericardial and epicardial fat is an early indicator of diastolic changes with transthoracic echocardiography being the gold standard exam.
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Duarte et al. (2023) conducted a cross-sectional in Left ventricular diastolic dysfunction (n=82). High pericardial fat thickness vs. Low pericardial fat thickness was evaluated on Left ventricular diastolic function parameters (septal e', lateral e', E/A ratio, E/e' ratio) (p=<0.0001). High pericardial fat thickness was significantly associated with worse left ventricular diastolic function, including decreased septal e' (p<0.0001) and increased E/e' ratio (p<0.0001).
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