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Impact of body mass index on the relationship of epicardial adipose tissue to metabolic syndrome and coronary artery disease in an Asian population.

Authors
Park, JS; Ahn, SG; Hwang, JW; Lim, HS; Choi, BJ; Choi, SY; Yoon, MH; Hwang, GS; Tahk, SJ; Shin, JH
Citation
Cardiovascular diabetology, 929-29, 2010
Journal Title
Cardiovascular diabetology
ISSN
1475-2840
Abstract
BACKGROUND: In a previous study, we demonstrated that the thickness of epicardial adipose tissue (EAT), measured by echocardiography, was increased in patients with metabolic syndrome (MS) and coronary artery disease (CAD). Several studies on obese patients, however, failed to demonstrate any relationship between EAT and CAD. We hypothesized that body mass index (BMI) affected the link between EAT and MS and CAD. METHODS: We consecutively enrolled 643 patients (302 males, 341 females; 59 +/- 11 years), who underwent echocardiography and coronary angiography. The EAT thickness was measured on the free wall of the right ventricle at the end of diastole. All patients were divided into two groups: high BMI group, > or = 27 kg/m2 (n = 165), and non-high BMI group, < 27 kg/m2 (n = 478). RESULTS: The median and mean EAT thickness of 643 patients were 3.0 mm and 3.1 +/- 2.4 mm, respectively. In the non-high BMI group, the median EAT thickness was significantly increased in patients with MS compared to those without MS (3.5 vs. 1.9 mm, p < 0.001). In the high BMI group, however, there was no significant difference in the median EAT thickness between patients with and without MS (3.0 vs. 2.5 mm, p = 0.813). A receiver operating characteristic (ROC) curve analysis predicting MS revealed that the area under the curve (AUC) of the non-high BMI group was significantly larger than that of the high BMI group (0.659 vs. 0.506, p = 0.007). When compared to patients without CAD, patients with CAD in both the non-high and high BMI groups had a significantly higher median EAT thickness (3.5 vs. 1.5 mm, p < 0.001 and 4.0 vs. 2.5 mm, p = 0.001, respectively). However, an ROC curve analysis predicting CAD revealed that the AUC of the non-high BMI group tended to be larger than that of the high BMI group (0.735 vs. 0.657, p = 0.055). CONCLUSIONS: While EAT thickness was significantly increased in patients with MS and CAD, the power of EAT thickness to predict MS and CAD was stronger in patients with BMI < 27 kg/m2. These findings showed that the measurement of EAT thickness by echocardiography might be especially useful in an Asian population with a non-high BMI, less than 27 kg/m2.
MeSH terms
Adipose Tissue/*ultrasonographyAdiposity/*ethnologyAged*Asian Continental Ancestry Group*Body Mass IndexCoronary AngiographyCoronary Artery Disease/ethnology/*physiopathology/radiography/ultrasonographyFemaleHumansKoreaMaleMetabolic Syndrome X/ethnology/*physiopathology/radiography/ultrasonographyMiddle AgedOdds RatioPericardiumROC CurveRetrospective StudiesRisk AssessmentRisk Factors
DOI
10.1186/1475-2840-9-29
PMID
20604967
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Cardiology
AJOU Authors
박진선임홍석최병주최소연윤명호황교승탁승제신준한
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