Rapid estimation of the accuracy of automatic blood pressure measuring devices (READ)

Abstract

We propose a rapid method for the evaluation of automatic blood pressure measurement devices (READ) in response to the claim to simplify the validation of those devices. The READ is based on numerous blood pressure (BP) measurements at rest and during a standardised postural challenge in a small number of subjects who exhibit a wide range of BPs. Automatic (AU) and mercury sphygmomanometric (MS) brachial BP were measured simultaneously in a blinded manner. An average of 30 measurements per patient were done in 10-min while in a supine position, followed by 30 min in head-up tilt and again supine for 10 min. Two Collin-8800 automated oscillometric devices were tested with the aid of the READ in 15 adults. The consistency of the MS standard was demonstrated by duplicate MS

Accuracy of the OMRON M4 automatic blood pressure measuring device

“…12,16 Conventional procedures for validation of automatic BP measurement devices are very cumbersome, timeconsuming and expensive because a large number of subjects are tested across a wide range of BPs, and employment of many well trained observers. 11 There is a need to simplify the validation of automatic BP measurement devices by enlisting fewer subjects, with a more restricted range of BPs and carrying out numerous BP measurements in each subject.…”

“…10 The total number of BP measurements for both the READ and for validation studies is comparable, and covers the spectrum of low, medium and high BP in similar proportions for both methods. 10,12,24 Since discrepancies between automatic devices and the mercury standard are influenced by age, 25 subjects covering a spectrum of ages from 20 to 75 years were examined in this study.…”

“…[9][10][11] We proposed a rapid method for the evaluation of automatic blood pressure measurement devices (READ). 12 The READ is based on numerous BP measurements at rest and during a standardised postural challenge in a small number of subjects who exhibit a wide range of BPs. It could serve as a pre-validation test, disclosing inadequacies in automatic BP measuring devices which may be amenable to correction by the manufacturer and thus prevent them needlessly going through cumbersome validation protocols.…”

The Haemodynamic Instability Score (HIS) for assessment of cardiovascular reactivity in hypertensive and normotensive patients

“…14,15 The HR measurements were recorded on an electrocardiographic monitor. The patient lay in a supine position on the tilt table, secured to the table at the chest, hips and knees with adhesive girdles.…”

In-field validation of automatic blood pressure measuring devices

“…[1][2][3] We proposed a method for the rapid and inexpensive evaluation of automatic BP measurement devices (READ). 4 The READ is based on numerous BP measurements at rest and during a standardised postural challenge in a small number of subjects who exhibit a wide range of BPs. The reason of tilting was to further increase the range in BP values for each subject.…”