alexa Cardiac hypertrophy in hypertension: relation to 24-h blood pressure profile and arterial stiffness.


Journal of Nephrology & Therapeutics

Author(s): Lekakis JP, Zakopoulos NA, Protogerou AD, Kotsis VT, Papaioannou TG,

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Abstract BACKGROUND: In subjects with essential hypertension peripheral blood pressure profile contributes to the pathogenesis of left ventricular hypertrophy. It is not known if central arterial pressure is superior to peripheral blood pressure profile for predicting left ventricular hypertrophy. In the present study 24-h blood pressure profile and central hemodynamics were examined to evaluate mechanical loading factors as determinants of cardiac hypertrophy in mild to moderate untreated essential hypertension. METHODS: Forty-eight untreated subjects with mild to moderate essential hypertension were examined by echocardiography for evaluation of left ventricular mass, 24-h ambulatory blood pressure monitoring (ABPM), and applanation tonometry of the radial artery with pulse wave analysis for evaluation of central hemodynamics. RESULTS: Left ventricular mass showed a statistically significant correlation with age, clinic systolic blood pressure, mean heart rate and heart rate variability during 24-h ABPM, augmentation pressure and index and central systolic blood pressure. In a multiple regression analysis including clinic systolic blood pressure, central systolic pressure, mean systolic pressure and pulse pressure during ambulatory monitoring as well as age, independent predictors of left ventricular mass were only age (P=0.006) and central systolic blood pressure (P=0.04). In conclusion, pulse wave analysis is a valuable method in predicting cardiac hypertrophy in untreated mild to moderate essential hypertension. Central systolic blood pressure should be taken into account for planning therapeutic strategies for prevention of left ventricular hypertrophy in hypertensive patients. Copyright 2003 Elsevier Ireland Ltd. This article was published in Int J Cardiol and referenced in Journal of Nephrology & Therapeutics

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