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Ambulatory blood pressure variability and brachial–ankle pulse wave velocity in untreated hypertensive patients

Journal of Human Hypertension volume 20, pages 529–536 (2006)Cite this article

Abstract

Blood pressure (BP) variability is estimated as the standard deviation of 24-h ambulatory BP. The present study was performed to determine the effect of the mean 24-h ambulatory BP values and standard deviations on arterial wall stiffness assessed by brachial–ankle pulse wave velocity (baPWV). Brachial–ankle pulse wave velocity, carotid intima–media thickness (IMT), urinary albumin excretion (UAE) and 24-h ambulatory BP were measured before the start of antihypertensive therapy in 203 newly diagnosed hypertensive patients (53.3±0.7 years old; clinic systolic/diastolic BP: 154±1/98±1 mm Hg), and univariate and multivariate regression analyses of these clinical and biological parameters were performed. Univariate regression analyses revealed a significant association between mean baPWV values and the standard deviations of ambulatory systolic/diastolic BP. Mean ambulatory systolic/diastolic BP values were also associated with UAE, and the standard deviations of ambulatory systolic BP were associated with maximum carotid IMT. Quintile analyses showed that patients with a mean 24-h ambulatory mean BP value and standard deviation below 110 and 20 mm Hg, respectively, had the lowest baPWV. Moreover, the multivariate regression analyses confirmed a significant correlation between baPWV and the standard deviation of 24-h ambulatory systolic BP. In conclusion, untreated hypertensive patients with a higher 24-h ambulatory systolic BP variability had stiffer arterial walls. Ambulatory systolic BP variability may be involved in stiffening of the arteries of hypertensive patients.

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Acknowledgements

This work was supported in part by grants from the Ministry of Education, Science and Culture of Japan (16790474 and 17390249). We acknowledge the skilful secretarial work of Ms Mahoko Uchimura of Keio University School of Medicine.

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Authors and Affiliations

  1. Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan

    A Ichihara, Y Kaneshiro, T Takemitsu, M Sakoda & M Hayashi

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  1. A Ichihara
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  2. Y Kaneshiro
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  3. T Takemitsu
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  4. M Sakoda
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  5. M Hayashi
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Correspondence to A Ichihara.

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Ichihara, A., Kaneshiro, Y., Takemitsu, T. et al. Ambulatory blood pressure variability and brachial–ankle pulse wave velocity in untreated hypertensive patients. J Hum Hypertens 20, 529–536 (2006). https://doi.org/10.1038/sj.jhh.1002023

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