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  • Title: Echocardiographic association of epicardial fat with carotid intima-media thickness in patients with type 2 diabetes.
    Author: Yafei S, Elsewy F, Youssef E, Ayman M, Elshafei M, Abayazeed R.
    Journal: Diab Vasc Dis Res; 2019 Jul; 16(4):378-384. PubMed ID: 31271311.
    Abstract:
    BACKGROUND: Epicardial fat is recognized as active endocrine organ and as emerging risk factor for cardio-metabolic diseases. The aim of this study was to explore the relationship between epicardial fat and carotid intima-media thickness in type 2 diabetes patients. METHODS: Epicardial fat thickness was measured in 76 type 2 diabetes patients without clinical atherosclerotic cardiovascular disease and 30 age- and sex-matched controls. In addition to laboratory tests, all patients underwent transthoracic echocardiography for epicardial fat thickness and ultrasonographic examination of carotid intima-media thickness. RESULTS: Patients with diabetes had higher epicardial fat thickness and carotid intima-media thickness than those of the controls (6.23 ± 1.27 mm vs 4.6 ± 1.03 mm, p < 0.001 and 0.77 ± 0.150 mm vs 0.58 ± 0.08 mm, p < 0.001, respectively). Epicardial fat thickness was correlated significantly with age, duration of type 2 diabetes, body mass index, waist circumference, HbA1c, carotid intima-media thickness, Homeostasis Model Assessment Index for insulin resistance and lipid profile in the type 2 diabetic patients. Stepwise regression analysis showed that carotid intima-media thickness, duration of diabetes, triglyceride and body mass index were the independent predictors of epicardial fat thickness, with carotid intima-media thickness the most important predictor (β = 3.078, t = 4.058, p < 0.001). Receiver operating characteristic curve analysis was done and cut-off high-risk epicardial fat thickness value of 6.1 mm was determined with a sensitivity and specificity of 71.4% and 72%, respectively. CONCLUSION: Patients with type 2 diabetes have higher carotid intima-media thickness and epicardial fat thickness. Epicardial fat thickness was found to be a strong predictor of subclinical atherosclerosis.
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