Cuffless blood pressure monitoring with HiloBand overestimated SYS/DIA in subjects with BP <115/75 and underestimated it in subjects with BP >145/90 compared to oscillometric HiloCuff.
Cohort (n=12)
Does continuous cuffless blood pressure monitoring via HiloBand provide comparable daytime SYS/DIA measurements to oscillometric HiloCuff in subjects treated or not treated with antihypertensive drugs?
Cuffless blood pressure monitoring with HiloBand shows systematic bias at the extremes of blood pressure compared to standard oscillometric measurement.
Objective: Continuous cuffless blood pressure (BP) monitoring via the Hilo solution, based on the capture and analysis of photoplethysmography (PPG) signals, has revealed higher values at night compared to ambulatory blood pressure monitoring (ABPM). The objective of this study was to compare day SYS/DIA provided by HiloBand (cuffless) vs. HiloCuff (oscillometric). Design and method: A cohort of 12 subjects (6 M/6F) treated or not treated with antihypertensive drugs were using HiloBand during 7 consecutive days. A total of 7,140 individual PPG-derived data points (5,184 daytime and 1,956 nighttime measurements) were processed. We compared SYS/DIA provided by oscillometric measurement with HiloCuff (calibration procedure) to those provided by HILOBand (awake period). Results: Statistical analysis of the 7,140 individual data points reveals that the SYS/DIA agreement between HiloBand and HiloCuff is not comparable depending on the subject's blood pressure level. The following table details the differences observed between the two methods depending on the blood pressure level observed during calibration.Conclusions: SYS/DIA obtained during the day period with HiloBand (cuffless) are not always comparable to SYS/DIA obtained with HiloCuff (oscillometric) during de calibration procedure. In subjects with SYS/DIA HiloCuff In subjects with SYS/DIA > 145/90 (calibration values with cuff/oscillometric): HiloBand < HiloCuff In subjects with SYS/DIA 115-145/75-90: HiloBand = HiloCuff
Rubin et al. (Fri,) conducted a cohort in Hypertension (n=12). HiloBand (cuffless blood pressure monitoring) vs. HiloCuff (oscillometric) was evaluated on SYS/DIA agreement between HiloBand and HiloCuff. Cuffless blood pressure monitoring with HiloBand overestimated SYS/DIA in subjects with BP <115/75 and underestimated it in subjects with BP >145/90 compared to oscillometric HiloCuff.
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