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  • Title: Visceral fat amount is associated with carotid atherosclerosis even in type 2 diabetic men with a normal waist circumference.
    Author: Kim SK, Park SW, Kim SH, Cha BS, Lee HC, Cho YW.
    Journal: Int J Obes (Lond); 2009 Jan; 33(1):131-5. PubMed ID: 18982015.
    Abstract:
    OBJECTIVE: Our objective was to investigate whether determination of the quantity of visceral fat has an additional benefit in assessing atherosclerotic burden in men with type 2 diabetes compared with the traditional measurement of waist circumference (WC) alone. METHODS: This was an observational study performed in 368 men with type 2 diabetes, consecutively enrolled in Diabetes Clinics. Common carotid artery far-wall intima-media thickness (IMT), WC and visceral fat thickness (VFT), as measured by ultrasonography, were measured for each subject. Abdominal and visceral obesity were defined as a WC >90 cm and a VFT > or =47.6 mm, respectively. RESULTS: Among subjects with abdominal obesity (n=174), 35 subjects did not have visceral obesity. In contrast, among the subjects without abdominal obesity (n=194), 88 patients had visceral obesity. Despite no differences in age, glucose control, lipid profile and treatment modalities, there was a significant difference in carotid IMT based on VFT strata, but not WC strata. The subjects without abdominal obesity, but who had visceral obesity, had a higher carotid IMT compared with subjects with abdominal obesity, but without visceral obesity (maximal, 0.94+/-0.35 vs 0.78+/-0.17 mm; and average, 0.74+/-0.19 vs 0.64+/-0.14 mm, respectively, P<0.001). CONCLUSIONS: Subjects having visceral obesity, regardless of a normal WC, showed a higher carotid IMT compared with those with increased WC, but less visceral fat. In addition to WC, a direct estimation for visceral fat may provide an additional role in assessing atherosclerotic burden in men with type 2 diabetes.
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