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Continuous Monitoring of Blood Pressure Using a Wrist-Worn Cuffless Device
Gabriel Sayer1, Greta Piper2, Esther Vorovich3
1Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA.
American Journal of Hypertension
|February 16, 2022
Summary
The LiveOne wristband offers accurate, continuous, noninvasive blood pressure (BP) monitoring compared to invasive methods. This cuffless device shows high correlation for systolic and diastolic BP, aiding therapeutic decisions.
Area of Science:
- Biomedical Engineering
- Cardiovascular Research
- Medical Devices
Background:
- Accurate blood pressure (BP) measurement is crucial for effective patient treatment.
- Continuous, noninvasive BP monitoring could enhance patient assessment.
- Existing BP monitoring methods have limitations in providing continuous data.
Purpose of the Study:
- To evaluate the accuracy of the LiveOne cuffless wristband for continuous BP measurement.
- To compare LiveOne device BP readings against an invasive arterial line (A-line).
Main Methods:
- A multicenter study enrolled hospitalized patients and healthy volunteers.
- Simultaneous BP waveform data were collected from the LiveOne device and an invasive A-line.
- The primary outcome was the correlation between LiveOne and A-line measurements for systolic BP (SBP) and diastolic BP (DBP).
Main Results:
- The study included 34 patients with 233 measurement periods.
- High correlations were observed: 0.91 for SBP and 0.85 for DBP.
- 98% of SBP and 92% of DBP measurements fell within clinically acceptable error margins.
Conclusions:
- The LiveOne device demonstrates accuracy in continuous, noninvasive BP measurement compared to A-line.
- Its portability and unobtrusive design offer potential advantages over current BP monitors.
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