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  • Title: Original articles prognostic value of combined echocardiography and ambulatory blood pressure monitoring in hypertensive patients at low or medium cardiovascular risk.
    Author: Verdecchia P, Schillaci G, Reboldi G, de Simone G, Porcellati C.
    Journal: Ital Heart J; 2001 Apr; 2(4):287-93. PubMed ID: 11374498.
    Abstract:
    BACKGROUND: The clinical value of echocardiography and ambulatory blood pressure monitoring (ABPM) in hypertensive patients at low immediate risk of cardiovascular disease is still unknown. METHODS: Echocardiography and ABPM were performed in 715 untreated subjects with essential hypertension World Health Organization/International Society of Hypertension stage I or II and low or medium cardiovascular risk defined by the absence of diabetes, previous cardiovascular events, left ventricular (LV) hypertrophy at electrocardiography, proteinuria, stages III-IV retinopathy and creatinine levels > 106.08 mmoll (1.2 mg/dl) and the presence of one or two traditional risk factors. RESULTS: The LV mass was increased in 26.5% of these subjects. Subjects with a limited blood pressure reduction from day to night (non-dippers) were 11.3%. Over 1-13 years of follow-up, 31 subjects developed a first major cardiovascular event. The event rate (per 100 person-years) was 0.60 in the subgroup with a normal LV mass vs 1.63 in that with an increased LV mass (p < 0.017), and 0.74 in dippers vs 3.75 in non-dippers (p < 0.001). On multivariate analysis, the relative risk of cardiovascular events was 1.70 (95% confidence interval-CI 1.23-2.36) for each 11 g/m(2.7) increment in LV mass (p < 0.01), and 2.77 (95% CI 1.12-6.83) in non-dippers vs dippers (p < 0.05). Overall, on the basis of results of combined echocardiography and ABPM, 33% of subjects were at increased risk of future cardiovascular events. CONCLUSIONS: At standard first-line work-up performed on hypertensive subjects at low or medium cardiovascular risk, combined echocardiography and ABPM identify an increase in the risk of subsequent cardiovascular disease in one third of subjects.
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