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  • Title: Clinical determinants of carotid intima-media thickness in patients with diabetes mellitus type 2.
    Author: Bartman W, Pierzchała K.
    Journal: Neurol Neurochir Pol; 2012; 46(6):519-28. PubMed ID: 23319219.
    Abstract:
    BACKGROUND AND PURPOSE: Early atherosclerotic changes in carotid arteries can be detected using ultrasound examination. The aim of this study was to assess correlations between intima-media thickness (IMT) and gender, age and clinical features of diabetes mellitus (DM). MATERIAL AND METHODS: The study group consisted of 73 patients with type 2 DM (mean age: 63.6 ± 7.5 years), and 74 controls without DM (mean age 62.2 ± 7.5 years). Analysed clinical features of diabetes included disease duration, anti-diabetic treatment, glycaemic control (HbA1c level), presence of metabolic syndrome, and complications of macro- and microangiopathy. IMT was measured using ultrasonography in the carotid arteries (common - CCA, bifurcation, internal - ICA) bilaterally. RESULTS: Mean and maximum IMT in the CCA was greater in diabetic patients than in controls. Age and male sex, but not vascular risk factors, were independent predictors of increased IMT in all segments. Macroangiopathy correlated with IMT within both CCA in univariate analysis. After adjusting for age and gender, this relationship remained significant in the right CCA in middle-aged patients (59-67 years; p = 0.01 for mean IMT, p = 0.02 for maximum IMT). In patients without metabolic syndrome, IMT in the right CCA bifurcation correlated with HbA1c level (p = 0.05). Patients treated simultaneously with insulin and oral antidiabetic drugs had smaller IMT in the right ICA than those treated with insulin only (0.471 ± 0.105 vs. 0.678 ± 0.209 mm; p = 0.04). CONCLUSIONS: In diabetic patients, ultrasound IMT measurement can be used to assess the cardiovascular risk and to determine indications for intensified anti-diabetic treatment. IMT is a sensitive marker of early carotid atherosclerosis, particularly on the right side.
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