Key result
Epicardial adipose tissue thickness was higher in obese adolescents with metabolic syndrome than lean subjects (7.42 vs 4.28 mm; p=0.001) and independently predicted carotid IMT (β=0.69, p<0.001).
Why the study?
Does epicardial adipose tissue thickness correlate with carotid intima-media thickness and early cardiac dysfunction in obese adolescents with metabolic syndrome?
Observational (n=201)
Does epicardial adipose tissue thickness correlate with carotid intima-media thickness and early cardiac dysfunction in obese adolescents with metabolic syndrome?
Effect estimate: β= 0.69
p-value: p=<0.001
Epicardial adipose tissue thickness is an independent predictor of carotid intima-media thickness and correlates with early cardiac dysfunction in obese adolescents with metabolic syndrome.
May identify higher-risk obese adolescents with metabolic syndrome; leaves open prospective validation and therapeutic implications.
OBJECTIVE: Epicardial adipose tissue thickness (EATT) is suggested as a new cardiometabolic risk factor. Carotid intima-media thickness (IMT) is a potential indicator of subclinical atherosclerosis in patients with metabolic syndrome (MS). We investigated the association of EATT with carotid IMT and cardiac functional changes in obese adolescents with MS. METHODS: One hundred thirty-eight obese adolescents and 63 lean subjects were enrolled in the study. The obese subjects were divided into two subgroups based on the presence or absence of MS (MS group and non-MS group). All subjects underwent transthoracic echocardiographic examination for determination of left ventricular (LV) function, LV mass index (LVMI), and myocardial performance index (MPI). EATT and carotid IMT were also measured during echocardiography. RESULTS: The average LVMI measurements were higher in both MS and non-MS obese patients in comparison with the lean children. The MS group had significantly higher LVMI measurements than the non-MS and lean groups (88.5±23.0, 67.5±24.8 g/m2, and 62.4±18.2 g/m2, respectively; p<0.01). Carotid IMT was higher in both the MS and non-MS obese patients in comparison with the lean group. The MS group had significantly higher carotid IMT measurements than the non-MS and lean groups (0.91±0.23, 0.78±0.18, and 0.52±0.08 mm, respectively; p<0.01). The EATT was also increased significantly in patients with MS compared to lean adolescents (7.42±1.55 vs. 4.28±0.79mm; p=0.001). EATT was positively correlated with body mass index-SDS, waist circumference, fasting glucose, insulin, homeostasis model assessment-insulin resistance, triglyceride levels, LV thickness, LVMI, and MPI in the MS obese group. EATT was the only independent predictor of carotid IMT in the multivariate analysis (β= 0.69, p<0.001). CONCLUSION: The findings of the present study demonstrate a close relationship of EATT with carotid IMT and early cardiac dysfunction in obese adolescents with MS. Assessment of EATT and carotid IMT in routine echocardiographic examinations is suggested as a feasible and reliable method for the evaluation of obesity with MS and its related cardiovascular risks in children and adolescents.
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Bedir et al. (2013) conducted an observational in Obese adolescents with metabolic syndrome (n=201). Epicardial adipose tissue thickness (EATT) vs. Lean subjects and obese subjects without MS was evaluated on Carotid IMT and cardiac functional changes (β= 0.69, p=<0.001). Epicardial adipose tissue thickness was higher in obese adolescents with metabolic syndrome than lean subjects (7.42 vs 4.28 mm; p=0.001) and independently predicted carotid IMT (β=0.69, p<0.001).
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