Blood pressure measurements with the OptiBP smartphone app validated against reference auscultatory measurements.

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State: Public
Version: author
License: CC BY 4.0
Serval ID
serval:BIB_62373D69B0AF
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Blood pressure measurements with the OptiBP smartphone app validated against reference auscultatory measurements.
Journal
Scientific reports
Author(s)
Schoettker P., Degott J., Hofmann G., Proença M., Bonnier G., Lemkaddem A., Lemay M., Schorer R., Christen U., Knebel J.F., Wuerzner A., Burnier M., Wuerzner G.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Publication state
Published
Issued date
20/10/2020
Peer-reviewed
Oui
Volume
10
Number
1
Pages
17827
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Abstract
Mobile health diagnostics have been shown to be effective and scalable for chronic disease detection and management. By maximizing the smartphones' optics and computational power, they could allow assessment of physiological information from the morphology of pulse waves and thus estimate cuffless blood pressure (BP). We trained the parameters of an existing pulse wave analysis algorithm (oBPM), previously validated in anaesthesia on pulse oximeter signals, by collecting optical signals from 51 patients fingertips via a smartphone while simultaneously acquiring BP measurements through an arterial catheter. We then compared smartphone-based measurements obtained on 50 participants in an ambulatory setting via the OptiBP app against simultaneously acquired auscultatory systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean blood pressure (MBP) measurements. Patients were normotensive (70.0% for SBP versus 61.4% for DBP), hypertensive (17.1% vs. 13.6%) or hypotensive (12.9% vs. 25.0%). The difference in BP (mean ± standard deviation) between both methods were within the ISO 81,060-2:2018 standard for SBP (- 0.7 ± 7.7 mmHg), DBP (- 0.4 ± 4.5 mmHg) and MBP (- 0.6 ± 5.2 mmHg). These results demonstrate that BP can be measured with accuracy at the finger using the OptiBP smartphone app. This may become an important tool to detect hypertension in various settings, for example in low-income countries, where the availability of smartphones is high but access to health care is low.
Pubmed
Web of science
Open Access
Yes
Create date
26/10/2020 13:36
Last modification date
21/01/2021 6:26
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