Commercial smartwatch with pulse oximeter detects short-time hypoxemia as well as standard medical-grade device: Validation study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F22%3A00360666" target="_blank" >RIV/68407700:21460/22:00360666 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1177/20552076221132127" target="_blank" >https://doi.org/10.1177/20552076221132127</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/20552076221132127" target="_blank" >10.1177/20552076221132127</a>

Result language

angličtina

Original language name

Commercial smartwatch with pulse oximeter detects short-time hypoxemia as well as standard medical-grade device: Validation study

Original language description

Objective We investigated how a commercially available smartwatch that measures peripheral blood oxygen saturation (SpO(2)) can detect hypoxemia compared to a medical-grade pulse oximeter. Methods We recruited 24 healthy participants. Each participant wore a smartwatch (Apple Watch Series 6) on the left wrist and a pulse oximeter sensor (Masimo Radical-7) on the left middle finger. The participants breathed via a breathing circuit with a three-way non-rebreathing valve in three phases. First, in the 2-minute initial stabilization phase, the participants inhaled the ambient air. Then in the 5-minute desaturation phase, the participants breathed the oxygen-reduced gas mixture (12% O-2), which temporarily reduced their blood oxygen saturation. In the final stabilization phase, the participants inhaled the ambient air again until SpO(2) returned to normal values. Measurements of SpO(2) were taken from the smartwatch and the pulse oximeter simultaneously in 30-s intervals. Results There were 642 individual pairs of SpO(2) measurements. The bias in SpO(2) between the smartwatch and the oximeter was 0.0% for all the data points. The bias for SpO(2) less than 90% was 1.2%. The differences in individual measurements between the smartwatch and oximeter within 6% SpO(2) can be expected for SpO(2) readings 90%-100% and up to 8% for SpO(2) readings less than 90%. Conclusions Apple Watch Series 6 can reliably detect states of reduced blood oxygen saturation with SpO(2) below 90% when compared to a medical-grade pulse oximeter. The technology used in this smartwatch is sufficiently advanced for the indicative measurement of SpO(2) outside the clinic.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20601 - Medical engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Digital Health

ISSN

2055-2076

e-ISSN

2055-2076

Volume of the periodical

8

Issue of the periodical within the volume

Oct

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

1-9

UT code for WoS article

000868695500001

EID of the result in the Scopus database

2-s2.0-85139713264