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Revista argentina de radiología

versión On-line ISSN 1852-9992


BRAVO, Mónica et al. Ultrasonography measurement of carotid intima-media thickness in pediatric patients with obesity, familial hypercholesterolemia and type 1 diabetes. Rev. argent. radiol. [online]. 2012, vol.76, n.1, pp.55-61. ISSN 1852-9992.

To evalúate by ultrasonographic images carotid intima-media thickness (IMT) as an early marker of cardiovascular risk (CVR) in patients with clinical and laboratory diagnosis of familial hypercholesterolemia (FHC), type 1 diabetes (DBT-1) and Obesity (OB), compared to a healthy control group. Materials and Methods. A prospective, descriptive, and cross-sectional study. We evaluated the IMT of common carotid (ce) arteries and included in a single dichotomic variable other structural modifications of the wall (atheromatous plaques and intima irregularities). US was blinded to the blood tests results (as recommended by the 2007 Mannheim consensus) from 121 patients (aged 6 to 18 years): 24 FHC, 40 DBT-1, 43 OB, and 14 controls. Patients with other diseases that could alter the arterial wall were excluded. Variables were analyzed using the Statistix 8 program. Results. The three groups had a higher IMT than the control group, with these differences being statistically significant. Mean IMT (mm) were 0.59 (0.31-2.15), p: 0.006, CI 0.06 to 0.36 in FHC; 0.48 (0.3-0.85), p: 0.001, CI 0.06-0.14 in obesity; and 0.46 (0.25-0.65), p: 0.0004, CI 0.03-0.13 in DBT-1. Control group: 0.37 (0.30-0.45). The major difference was observed in FHC patients. No association was found between LDL-C valué and IMT Upon the examination, 62.5% were receiving pharmacotherapy. In DBT-1 no association was found between IMT and the levéis of HbAlc and lipids. In the OB group there was no association between IMT and BMI Z-score. Atheromatous plaques and intima irregularities were found in 31% of FHC patients, 8% of DBT-1 patients, and 6% of OB patients. Conclusión. Ultrasonographic IMT measurements demonstrated that patients with chronic diseases and increased CVR at adulthood presented early changes in the carotid intima-media at childhood. This allows clinical prevention strategies and therapeutic guidance.

Palabras clave : Cardiovascular Risk; Children; Type 1 Diabetes; Familial Hypercholesterolemia; Intimal-Medial Thickness; Obesity; Ultrasound.

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