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  • Title: [Cardiac and vascular hypertrophy in juvenile borderline hypertension: echocardiographic and ultrasonographic study].
    Author: Cuspidi C, Boselli L, Bragato R, Sampieri L, Lonati L, Bocciolone M, Leonetti G.
    Journal: G Ital Cardiol; 1993 Jun; 23(6):575-81. PubMed ID: 8405819.
    Abstract:
    BACKGROUND: High resolution ultrasonography is a noninvasive technique that allows us to investigate the cardiovascular system, in particular the wall thickness and the lumen diameter of the arteries, with accuracy and reproducibility. METHODS: We measured the intima-media thickness of the common carotid artery (CCA) and of its bifurcation (BIF) in 20 borderline hypertensive (age 24 +/- 4 years) and in 20 normotensive subjects (age 24 +/- 4 years), as a control group. Both carotid axes were scanned from different views (anterior, lateral, posterior) on a transversal and longitudinal section using a high resolution steerable linear array of 5 MHz. Carotid diameter and thickness were measured in the longitudinal section. CCA parameters were assessed 20 mm caudally to the flow divider. RESULTS: In borderline patients blood pressure (147.8 +/- 10.5/90.7 +/- 6.6 mmHg) and left ventricular mass index (102.5 +/- 15.3 g/m2) were significantly higher than in normotensive subjects (blood pressure 120.5 +/- 11.5/78.0 +/- 5.4 mm Hg; left ventricular mass 90.5 +/- 14.3 g/m2). The intima-media thickness of both the CCA and BIF was significantly higher in borderlines than in normotensives (CCA 0.6 +/- 0.08 vs 0.4 +/- 0.05 mm, p < 0.001; BIF 0.7 +/- 0.08 vs 0.5 +/- 0.08, p < 0.001). In the whole population there was a statistically significant correlation between the carotid wall thickness and the left ventricular mass. CONCLUSIONS: Our data show that ultrasonography provides direct evidence that in young borderline hypertensives the increased left ventricular mass is associated with vascular hypertrophy.
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