Key result
Cuffless mobile device blood pressure measurement using photoplethysmographic signals requires resolution of critical calibration and utility issues before incorporation into clinical practice.
Why the study?
Cuffless mobile device blood pressure measurement is emerging, but critical issues around calibration and utility across patient groups remain to be resolved.
While cuffless mobile device blood pressure measurement using PPG signals offers potential, critical issues regarding calibration and clinical utility must be resolved before routine clinical use.
Answers are grounded in this paper and cite their sources.
Cautions against routine clinical use of cuffless PPG BP devices; leaves open their role pending targeted validation studies.
Blood pressure measurement (BPM) is an essential part of medical examination, and therefore accuracy of BPM devices is crucial. Over the past few years, there has been a rise in new BPM techniques using photoplethysmographic (PPG) signals and complex algorithms for blood pressure estimation. Especially the combination of a mobile device or a smartphone with a camera using PPG may potentially revolutionize BPM in the future. The first-ever BPM application to be approved as a medical device was one by the Korean Ministry of Food and Drug Safety in 2020, despite the lack of robust scientific evidence proving its validity. While the prospect of using these novel BPM devices is an opportunity, there are also some critical issues around calibration and utility in different patient groups that need to be resolved before they can be incorporated into daily clinical practice.
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Lee et al. (2022) conducted a review in Blood pressure measurement. Cuffless mobile device blood pressure measurement was evaluated. Cuffless mobile device blood pressure measurement using photoplethysmographic signals requires resolution of critical calibration and utility issues before incorporation into clinical practice.
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