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. 2022 Dec 1;27(6):402-407.
doi: 10.1097/MBP.0000000000000615. Epub 2022 Aug 8.

Remote blood pressure monitoring with a wearable photoplethysmographic device in patients undergoing coronary angiography: the senbiosys substudy

Sara Schukraft  1 , Serj Haddad  2 , Yannick Faucherre  1 , Diego Arroyo  1 , Mario Togni  1 , Anthony Barison  2 , Assim Boukhayma  2 , Stéphane Cook  1 , Antonino Caizzone  2
Affiliations

Remote blood pressure monitoring with a wearable photoplethysmographic device in patients undergoing coronary angiography: the senbiosys substudy

Sara Schukraft et al. Blood Press Monit. .

Abstract

Aims: The purpose of this study is to evaluate the accuracy of the Senbiosys device in measuring blood pressure (BP) by photoplethysmography (PPG) in patients undergoing coronary angiography.

Methods: This is a substudy within the Senbiosys trial, which is a prospective, single-arm, single-center study, evaluating the accuracy of BP estimation of the Senbiosys device compared to invasive BP. Patients referred for coronary angiography underwent invasive BP measurement and simultaneously wore the Senbiosys ring. SBP and DBP estimations measured by the Senbiosys device were compared with invasive measurements.

Results: A total of 25 patients were included. Overall, 708 epochs with adequate PPG signal belonging to 17 patients were analyzed. A total of 84% of the SBP estimates and 99% of the DBP estimates have an absolute error of less than 10 mmHg compared with the invasive measurements. Mean difference was 2.3 ± 7.0 mmHg and 0.5 ± 3.5 mmHg for SBP and DBP, respectively.

Conclusion: The Senbiosys device is accurate enough to determine BP in a selected population undergoing coronary angiography.

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Conflict of interest statement

A.C. is the cofounder and CTO of Senbiosys. A.B. is the cofounder and CSO of Senbiosys. S.H. is a system engineer at Senbiosys. The Swiss company Senbiosys SA is a nonprofit company that produces PPG sensors (https://www.senbiosys.com/about-us/). For the remaining authors, there are no conflicts of interest.

Figures

Fig. 1
Fig. 1
The SBF2003 on the index finger.
Fig. 2
Fig. 2
Study flow chart. PPG, photoplethysmography.
Fig. 3
Fig. 3
Bland–Altman and Pearson’s correlation plots. (a) Pearson’s correlation of SBP measurements; (b) Bland–Altman plots of SBP measurements; (c) Pearson’s correlation DBP measurements (d); Bland–Altman plots of DBP measurements. μ, bias; r, correlation coefficient.
See this image and copyright information in PMC

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