Key result
The WeBPM device demonstrated continuous blood pressure measurement errors of -1.74 ± 4.9 mmHg for SBP and 0.37 ± 3.28 mmHg for DBP compared to clinical invasive reference measurements.
Why the study?
Existing wearable continuous blood pressure monitoring technologies are often inaccurate and rely on external calibration, limiting their practical clinical application.
Does the WeBPM device accurately measure continuous blood pressure compared to Nexfin and invasive reference measurements?
Does the WeBPM device accurately measure continuous blood pressure compared to Nexfin and invasive reference measurements?
The WeBPM device provides accurate, continuous, non-invasive blood pressure monitoring with medical-grade precision compared to invasive references.
Supports wearable continuous BP device development; leaves open clinical adoption pending larger validation trials.
Accurate and portable Blood Pressure (BP) monitoring is vital for managing cardiovascular diseases. However, existing wearable continuous BP monitoring technologies are often inaccurate and rely on external calibration, limiting their practical application in continuous BP monitoring. To address this challenge, we have developed a Wearable continuous non-invasive BP Monitor (WeBPM) equipped with a finger cuff sensor, capable of monitoring BP continuously and accurately within medical-grade precision. WeBPM integrates advanced finger oscillographic BP measurement technology to provide reliable self-calibration functionality. Moreover, Pulsatile Cycle Volume Adjustment Method (PCVAM) we proposed for the closed-loop phase can continuously track changes in vasomotor tone under a controlled frequency based on pulsatile cycles, thereby enabling continuous BP measurement. In comparative experiments with the Nexfin monitor, WeBPM demonstrates excellent performance in induced dynamic BP experiments, with measurement errors of (-1.4 ± 6.24) mmHg for Systolic BP (SBP) and (-0.82 ± 4.83) mmHg for Diastolic BP (DBP). Additionally, compared to clinical invasive reference measurements, WeBPM's SBP and DBP measurement errors are (-1.74 ± 4.9) mmHg and (0.37 ± 3.28) mmHg, respectively, further proving its outstanding performance. These results highlight WeBPM's potential in personalized health management and remote monitoring, offering a new solution for continuous non-invasive BP monitoring.
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Wu et al. (2024) studied this question. Wearable continuous non-invasive BP Monitor (WeBPM) vs. Nexfin monitor and clinical invasive reference was evaluated on Measurement error for Systolic BP (SBP) and Diastolic BP (DBP) (MD -1.74 mmHg (SBP vs invasive)). The WeBPM device demonstrated continuous blood pressure measurement errors of -1.74 ± 4.9 mmHg for SBP and 0.37 ± 3.28 mmHg for DBP compared to clinical invasive reference measurements.
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