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29. Wissenschaftlicher Kongress der Deutschen Hochdruckliga

Deutsche Hochdruckliga e. V. DHL ® - Deutsche Hypertonie Gesellschaft Deutsches Kompetenzzentrum Bluthochdruck

23. bis 25.11.2005, Berlin

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Reproducibility of office-, home- and 24-hour ambulatory blood pressure measurement

Reproduzierbarkeit von drei nicht invasiven Blutdruckmessverfahren

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  • S. Uen - Universität Bonn (Bonn, D)
  • M. Monshausen - Universität Bonn (Bonn, D)
  • N. von Hansemann - Universität Bonn (Bonn, D)
  • J. Baulmann - Universität Bonn (Bonn, D)
  • H. Vetter - Universität Bonn (Bonn, D)
  • T. Mengden - Universität Bonn (Bonn, D)

Hypertonie 2005. 29. Wissenschaftlicher Kongress der Deutschen Hochdruckliga. Berlin, 23.-25.11.2005. Düsseldorf, Köln: German Medical Science; 2006. Doc05hochP48

The electronic version of this article is the complete one and can be found online at: http://www.egms.de/en/meetings/hoch2005/05hoch048.shtml

Published: August 8, 2006

© 2006 Uen et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.

Outline

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Aims: To compare the reproducibility of three different blood pressure (BP) measurement methods:1) office BP, 2) home BP (Omron wrist device 637 IT with position sensor), 24-hour ambulatory blood pressure measurement (24-h ABPM) (Cardiotens 04 Meditech, Hun).

Methods: Conventional, sphygmomanometric office BP (two consecutive measurements) was performed at study day one and seven, 24-h ABPM was performed at study day seven and fourteen, home BP (two consecutive measurements in the morning and evening) was performed consecutively between study days one and seven and between study days eight and fourteen in 69 hypertensive and 28 normotensive subjects. Subjects were instructed how to use the oscillometric Omron wrist device for home blood pressure measurement.

Results: Mean systolic/diastolic (mm Hg) BP values were 148±24/92±13 and 144±21/90±12 for office BP at study day one and seven respectively, 135±16/84±12 and 134±16/83±12 for home BP in the first and second week respectively, 131±15/79±11 and 133±16/80±11 for 24-h ABPM at day seven and fourteen respectively.

The reproducibility of BP measurement was analysed by comparing the within subject standard deviations (SD) between the respective BP measurements. Mean within subject SD (confidence interval) for office-, home- and 24-h ABP were for systolic BP: 8.10 [7.10-9.43], 3.81[3.34-4.44] and 7.87 [6.90-9.17], for diastolic BP 4.76 [ 4.18-5.54], 2.77 [2.43-3.22] and 4.09 [3.59-4.77].

The reproducibility of systolic and diastolic home BP was significantly higher than the reproducibility of office BP (p=0.0005 systolic BP, and p=0.001 diastolic BP) and the reproducibility of 24-h ABPM (P=0.0007 systolic BP, p=0.127 diastolic BP). The reproducibility of systolic and diastolic office and 24-h ABPM was not significantly different (p=0.8 systolic, p=0.1 diastolic).

Conclusions: The short time reproducibility of home BP measurement with the Omron 637 wrist device was superior to the reproducibility of office BP and 24- ABPM measurement. This finding is important for pharmacological studies as well as clinical use of home BP.