Wearable Finger Pulse Oximetry for Continuous Oxygen Saturation Measurements During Daily Home Routines of Patients With Chronic Obstructive Pulmonary Disease (COPD) Over One Week: Observational Study

Chronic obstructive pulmonary disease (COPD) patients can suffer from low blood oxygen concentrations. Peripheral blood oxygen saturation (SpO ), as assessed by pulse oximetry, is commonly measured during the day using a spot check, or continuously during one or two nights to estimate nocturnal desa...

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Bibliographic Details
Published in:JMIR mHealth and uHealth 2019-06, Vol.7 (6), p.e12866
Main Authors: Buekers, Joren, Theunis, Jan, De Boever, Patrick, Vaes, Anouk W, Koopman, Maud, Janssen, Eefje Vm, Wouters, Emiel Fm, Spruit, Martijn A, Aerts, Jean-Marie
Format: Article
Language:English
Subjects:
Activities of Daily Living
Blood Gas Analysis
Chronic obstructive pulmonary disease
Humans
Lung diseases
Netherlands
Observational studies
Original Paper
Oximetry - instrumentation
Oximetry - methods
Oximetry - standards
Oxygen - analysis
Oxygen saturation
Pulmonary Disease, Chronic Obstructive - complications
Pulmonary Disease, Chronic Obstructive - psychology
Pulse oximetry
Sensors
Software
Wearable Electronic Devices - standards
Wearable Electronic Devices - statistics & numerical data
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Summary:Chronic obstructive pulmonary disease (COPD) patients can suffer from low blood oxygen concentrations. Peripheral blood oxygen saturation (SpO ), as assessed by pulse oximetry, is commonly measured during the day using a spot check, or continuously during one or two nights to estimate nocturnal desaturation. Sampling at this frequency may overlook natural fluctuations in SpO . This study used wearable finger pulse oximeters to continuously measure SpO during daily home routines of COPD patients and assess natural SpO fluctuations. A total of 20 COPD patients wore a WristOx pulse oximeter for 1 week to collect continuous SpO measurements. A SenseWear Armband simultaneously collected actigraphy measurements to provide contextual information. SpO time series were preprocessed and data quality was assessed afterward. Mean SpO , SpO SD, and cumulative time spent with SpO below 90% (CT90) were calculated for every (1) day, (2) day in rest, and (3) night to assess SpO fluctuations. A high percentage of valid SpO data (daytime: 93.27%; nocturnal: 99.31%) could be obtained during a 7-day monitoring period, except during moderate-to-vigorous physical activity (MVPA) (67.86%). Mean nocturnal SpO (89.9%, SD 3.4) was lower than mean daytime SpO in rest (92.1%, SD 2.9; P
ISSN:2291-5222
2291-5222
DOI:10.2196/12866