Evaluation of a novel optical smartphone blood pressure application: a method comparison study against invasive arterial blood pressure monitoring in intensive care unit patients.

Details

Serval ID
serval:BIB_F54D63C7ACD6
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Evaluation of a novel optical smartphone blood pressure application: a method comparison study against invasive arterial blood pressure monitoring in intensive care unit patients.
Journal
BMC anesthesiology
Author(s)
Desebbe O., Anas C., Alexander B., Kouz K., Knebel J.F., Schoettker P., Creteur J., Vincent J.L., Joosten A.
ISSN
1471-2253 (Electronic)
ISSN-L
1471-2253
Publication state
Published
Issued date
15/08/2022
Peer-reviewed
Oui
Volume
22
Number
1
Pages
259
Language
english
Notes
Publication types: Journal Article ; Observational Study
Publication Status: epublish
Abstract
Arterial hypertension is a worldwide public health problem. While it is currently diagnosed and monitored non-invasively using the oscillometric method, having the ability to measure blood pressure (BP) using a smartphone application could provide more widespread access to hypertension screening and monitoring. In this observational study in intensive care unit patients, we compared blood pressure values obtained using a new optical smartphone application (OptiBP™; test method) with arterial BP values obtained using a radial artery catheter (reference method) in order to help validate the technology.
We simultaneously measured three BP values every hour for five consecutive hours on two consecutive days using both the smartphone and arterial methods. Bland-Altman and error grid analyses were used for agreement analysis between both approaches. The performance of the smartphone application was investigated using the Association for the Advancement of Medical Instrumentation (AAMI) and the International Organization for Standardization (ISO) definitions, which require the bias ± SD between two technologies to be below 5 ± 8 mmHg.
Among the 30 recruited patients, 22 patients had adequate OptiBP™ values and were thus analyzed. In the other 8 patients, no BP could be measured due to inadequate signals. The Bland-Altman analysis revealed a mean of the differences ± SD between both methods of 0.9 ± 7 mmHg for mean arterial pressure (MAP), 0.2 ± 14 mmHg for systolic arterial pressure (SAP), and 1.1 ± 6 mmHg for diastolic arterial pressure (DAP). Error grid analysis demonstrated that the proportions of measurement pairs in risk zones A to E were 88.8% (no risk), 10% (low risk), 1% (moderate risk), 0% (significant risk), and 0% (dangerous risk) for MAP and 88.4%, 8.6%, 3%, 0%, 0%, respectively, for SAP.
This method comparison study revealed good agreement between BP values obtained using the OptiBP™ and those done invasively. The OptiBP™ fulfills the AAMI/ISO universal standards for MAP and DAP (but not SAP). Error grid showed that the most measurements (≥ 97%) were in risk zones A and B.
ClinicalTrials.gov registration: NCT04728477.
Keywords
Arterial Pressure/physiology, Blood Pressure/physiology, Blood Pressure Determination/methods, Humans, Hypertension, Intensive Care Units, Smartphone, Arterial hypertension, mobile phone, Hemodynamic, Hemodynamic monitoring, International standards, Mobile health, Optical signal
Pubmed
Open Access
Yes
Create date
22/08/2022 10:07
Last modification date
23/02/2023 6:54
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