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Need for re-validation of automated blood pressure devices for use in unstable conditions

conference contribution
posted on 2023-07-26, 13:47 authored by Dingchang Zheng, Chengyu Liu, John Amoore, Stephan Mieke, Alan Murray
The current validation of non-invasive blood pressure (NIBP) device is performed under resting condition. However, NIBPs are often used without giving much consideration about the measurement conditions. This study aimed to provide scientific data on the use of BP devices in unstable conditions. BP measurements were performed on 20 healthy subjects under both resting and regular deep breathing conditions. During the measurement the oscillometric cuff pressure waveforms were recorded digitally. They were then regenerated by a specially designed BP simulator and presented to two clinically validated hospital grade automatic NIBP devices to obtain automated BPs. Automated BPs obtained from the two conditions were finally compared between the two devices. Under resting condition, there was no significant diference in both automated SBP and DBP between the two devices. However, under regular deep breathing condition, significant SBP and DBP diferences were observed between the two devices (both P<;O.OJ; mean±SD: 118.8±10.6 vs 115.1±11.6 mmHg for SBP; 68.5±8.6 vs 65.3±8.9 mmHg for DBP). For the effect of deep breathing on BP measurement, significant SBP decrease was observed only from device 2 (P<;0.05, with a mean diference±SD of 3.8±6.2 mmHg), indicating inconsistent measurements between the two devices under unstable conditions. Our results provide scientific evidence that automated BP devices can be used only under the condition for which the validation was performed.

History

Page range

17-20

ISSN

2325-887X

Publisher

IEEE

Place of publication

Online

ISBN

978-1-5090-0684-7

Conference proceeding

2015 Computing in Cardiology Conference (CinC)

Name of event

2015 Computing in Cardiology Conference (CinC)

Location

Nice, France

Event start date

2015-09-06

Event finish date

2015-09-09

Language

  • other

Legacy posted date

2016-05-09

Legacy Faculty/School/Department

ARCHIVED Faculty of Medical Science (until September 2018)

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