Use of patient simulators to characterize the repeatability and reproducibility of automated oscillometric blood pressure monitors

Blood Pressure Monitoring
Elmiloudi M SarhraniLuke H Herbertson

Abstract

Automated oscillometric blood pressure (BP) monitors can be critical health assessment tools if they are accurate and can provide repeatable and reproducible readings. Commercial patient simulators are capable of screening for poorly performing oscillometric BP monitors. A valid screening bench test method to identify unreliable and underperforming BP monitors could advance surveillance of these devices and support regulatory decision making. Two simulators were used to characterize a total of 19 legally marketed upper arm, wrist, hospital-grade, and public-use BP monitors. These oscillometric BP monitors were tested for repeatability and reproducibility across different simulated patient populations. The metrics for evaluating these devices were the difference between the simulated pressure and the BP monitor output, and the variability from repeated measurements. All but one of the BP monitors tested provided repeatable readings (<3 mmHg). The mean error between the simulated pressure and the BP monitor output was largest for the wrist devices, whereas hospital-grade BP monitors most closely estimated the target BP waveforms. In general, device error and measurement variability increased at elevated BPs. Patient simulators ar...Continue Reading

References

Feb 25, 2003·JAMA : the Journal of the American Medical Association·Daniel W JonesClaude Lenfant
Feb 26, 2011·American Journal of Hypertension·Harold Smulyan, Michel E Safar
Jan 10, 2012·Blood Pressure Monitoring·John Nicholas Amoore
Dec 11, 2014·Journal of the American Society of Hypertension : JASH·Bruce S AlpertDavid Gallick
Apr 10, 2015·Blood Pressure Monitoring·Mi-Hyang JungChul-Min Kim
Sep 24, 2015·Blood Pressure Monitoring·Beate BeimePeter Bramlage

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