An interventional study of Breathing mixtures of O2 and N2 and monitoring SpO2 on finger and left wrist in Hypoxia and Pulse Oximetry, sponsored by Czech Technical University in Prague. Status unknown at 1 site in Czechia. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-03-17.
Sponsored by Czech Technical University in Prague · Not applicable, Interventional, and Basic science
The aim of the project is to experimentally compare SpO2 measured on a wrist by commercial Smartwach and on a finger measured by a medical-grade pulse oximeter in healthy humans during gradual desaturation in the range of 60-100% SpO2 and simultaneously during a step change from the hypoxic phase to the recovery phase (return to physiological values).
The newest models of smartwatches measure peripheral blood oxygen saturation (SpO2) and the technology is rapidly improving. The results of individual studies on the accuracy of SpO2 measurement using smartwatches from different brands are still inconclusive. The study aims to compare the measurement of peripheral blood oxygen saturation using the latest smartwatch with a medical-grade pulse oximeter under the condition of normobaric hypoxia. SpO2 measurements will be taken by hand from the watch and the pulse oximeter simultaneously. The agreement of the measurements of both devices will be evaluated.
1,231 studies on the registry are indexed under Hypoxia; 241 are open to participants now.
This study's planned enrollment of 40 is below the median of 45 across 853 interventional studies indexed under Hypoxia.
Browse Hypoxia studies →Czech Technical University in Prague is the lead sponsor of 36 studies on the registry; 6 are open to participants now.
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Volunteers sequentially inhale three hypoxic gas mixtures each for 2.5 minute. Every measurement will begin with a two-minute stabilization phase, during which the physiological values of the volunteer will be checked. During the whole experiment, non-invasive SpO2 measurements will be performed on the middle finger and on the wrist of left hand.
Other: Breathing mixtures of O2 and N2 and monitoring SpO2 on finger and left wrist
Volunteers sequentially inhale three hypoxic gas mixtures each for 2.5 minute. Every measurement will begin with a two-minute stabilization phase, during which the physiological values of the volunteer will be checked. During the whole experiment, non-invasive SpO2 measurements will be performed on the middle finger and on the wrist of left hand.
Is there any difference in measured SpO2 between finger and wrist during induced hypoxia?
The agreement of SpO2 measurements of both monitoring devices will be evaluated.
Time frame: 1 hour
This study is status unknown, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.
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Czech Technical University in Prague