Many home blood pressure monitors may be inaccurate

Home blood pressure monitors may be inaccurate in up to 15% of patients, according to a study that will be presented at ASN Kidney Week 2014 November 11¬–16 at the Pennsylvania Convention Center in Philadelphia, PA.

Major guidelines recommend monitoring to guide diagnosis and treatment of patients with hypertension; however, little is known about the real-world accuracy of that patients use. Researchers led by Swapnil Hiremath, MD, MPH (Ottawa Hospital and University of Ottawa, in Canada) compared measurements from home blood pressure monitors with validated mercury sphygmomanometers, which are used in doctors' offices, in 210 patients.

The investigators found that 63/210 of the home monitor readings (30%) were > 5 mm Hg different and 16 (8%) were > 10 mm Hg different from the mercury systolic blood pressure measurement. For diastolic blood pressure, these proportions were 32% (67/210) and 9% (18/210) respectively.

"Home blood pressure monitors may be inaccurate in 5% to 15% of patients, depending on the threshold for accuracy used," said Dr. Hiremath. "We recommend all patients with home monitors get them validated with their health care providers at least once."


Explore further

Seeing doctor twice a year helps keep blood pressure under control

More information: Study: "Are Home Blood Pressure Monitors Accurate Compared to Validated Devices?" (Abstract SA-PO187)
Citation: Many home blood pressure monitors may be inaccurate (2014, October 28) retrieved 10 December 2019 from https://medicalxpress.com/news/2014-10-home-blood-pressure-inaccurate.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
 shares

Feedback to editors

User comments