Key result
In middle-aged subjects with suspected metabolic syndrome, epicardial adipose tissue thickness was independently associated with subclinical myocardial dysfunction (GLS ß = -0.332, p < 0.001) and inflammation only in men.
Cross-Sectional (n=277)
Yes
Effect estimate: ß = -0.332
p-value: p=<0.001
In middle-aged subjects with suspected metabolic syndrome, epicardial adipose tissue thickness is associated with inflammation and subclinical myocardial dysfunction in men, but not in women.
No difference in EAT thickness should not change practice; leaves open sex-specific associations with inflammation and strain.
BACKGROUND: As body fat composition and metabolism differ between men and women, we evaluated sex-related differences in the association among epicardial adipose tissue (EAT), secretome profile, and myocardial function of subjects with suspected metabolic syndrome. METHODS: We evaluated 277 participants (men, n = 140; 56.1 ± 4.7 years) who underwent conventional echocardiography and two-dimensional speckle tracking from the Seoul Metabolic Syndrome cohort. EAT was measured from the right ventricular free wall perpendicular to the aortic annulus at end systole. Global longitudinal strain (GLS) was obtained from 18 apical segments. Apolipoprotein A1, apolipoprotein B, adiponectin, and high-sensitivity C-reactive protein (hs-CRP) levels were measured using immunoturbidimetry assay. RESULTS: Mean age, body mass index, and hs-CRP level did not differ by sex. Waist circumference, fasting blood glucose level, and triglyceride/high-density lipoprotein cholesterol ratio were higher, and apolipoprotein AI and adiponectin levels were lower in men. No significant difference in mean EAT thickness was found (7.02 ± 1.81 vs. 7.13 ± 1.70 mm, p = 0.613). Men had a higher left ventricular (LV) mass index and lower GLS. EAT thickness was associated with hs-CRP level in men alone (ß = 0.206, p = 0.015). LV mass index (ß = 2.311, p = 0.037) and function represented by e' (ß = - 0.279, p = 0.001) and GLS (ß = - 0.332, p < 0.001) were independently associated with EAT thickness in men alone. CONCLUSIONS: In middle-aged subjects with suspected metabolic syndrome, EAT was associated with inflammation represented by hs-CRP level, LV mass, and subclinical myocardial dysfunction only in men, suggesting that the inflammatory activity of EAT induced myocardial remodeling and dysfunction in middle-aged subjects but was attenuated in women. Trial registration NCT02077530 (date of registration: November 1, 2013).
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Cho et al. (2018) conducted a cross-sectional in Suspected metabolic syndrome (n=277). Epicardial adipose tissue (EAT) thickness was evaluated on Association between EAT thickness and global longitudinal strain (GLS) in men (ß = -0.332, p=<0.001). In middle-aged subjects with suspected metabolic syndrome, epicardial adipose tissue thickness was independently associated with subclinical myocardial dysfunction (GLS ß = -0.332, p < 0.001) and inflammation only in men.
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