Abstract: We describe an evaluation of photoplethysmography (PPG) signals with two wavelengths channels (infrared and red) using a wrist-worn sensor for the estimation of heart rate variability (HRV) ...
Copyright: © 2023 The Author(s). Published by Elsevier Ltd. The past decade has seen a dramatic rise in consumer technologies able to monitor a variety of ...
Abstract: Pulse oximeters are electronic devices that provide the values of two physiological parameters: heart rate (HR) and functional O2 saturation, SpO2. Acquiring this information requires a ...
Objective NEWS2 (RCP 2017) 1 recommends use of ‘SpO2 Scale 2’ in patients with hypercapnic respiratory failure (usually due to COPD) to aim target saturations of 88–92%. We aimed to identify if COPD ...
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