Key result
Wearable plethysmography accurately tracks jugular venous pulse signals within ~0.05 seconds of ultrasound.
Why the study?
Monitoring jugular venous pulse assesses cardiovascular diseases including heart failure, but detection often requires invasive surgery or specialized ultrasound operators.
Does a novel wearable plethysmography device accurately monitor jugular venous pulse waveforms in healthy subjects compared to ultrasound?
Does a novel wearable plethysmography device accurately monitor jugular venous pulse waveforms in healthy subjects compared to ultrasound?
A novel wearable plethysmography device offers a feasible, non-invasive alternative for synchronous monitoring of the jugular venous pulse without requiring highly trained ultrasound operators.
Supports wearable JVP monitoring feasibility in healthy subjects; leaves open validation of accuracy and utility in cardiovascular patients.
Cerebral venous outflow is investigated in the diagnosis of heart failure through the monitoring of jugular venous pulse, an indicator to assess cardiovascular diseases. The jugular venous pulse is a weak signal stemming from the lying internal jugular vein and often invasive methodologies requiring surgery are mandatory to detect it. Jugular venous pulse can also be extrapolated via the ultrasound technique, but it requires a qualified healthcare operator to perform the examination. In this work, a wireless, user-friendly, wearable device for plethysmography is developed to investigate the possibility of monitoring the jugular venous pulse non-invasively. The proposed device can monitor the jugular venous pulse and the electrocardiogram synchronously. To study the feasibility of using the proposed device to detect physiological variables, several measurements were carried out on healthy subjects by considering three different postures: supine, sitting, and upright. Data acquired in the experiment were properly filtered to highlight the cardiac oscillation and remove the breathing contribution, which causes a considerable shift in the amplitude of signals. To evaluate the proper functioning of the wearable device for plethysmography, a comparison with the ultrasound technique was carried out. As a satisfactory result, the acquired signals resemble the typical jugular venous pulse waveforms found in literature.
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Proto et al. (2021) studied Healthy volunteers (n=5). Wearable plethysmography device for jugular venous pulse monitoring vs. Ultrasound machine (gold standard) was evaluated on Temporal alignment of the device-acquired jugular venous pulse waveforms compared to ultrasound. The wearable plethysmography device successfully acquired jugular venous pulse signals demonstrating high temporal agreement with gold-standard ultrasound (mean temporal distance for 'a' peaks 0.05 ± 0.03 s).
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