Inter-Finger Variability of SpO2 During Hypoxemia and Step Resaturation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F25%3A00386004" target="_blank" >RIV/68407700:21460/25:00386004 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/healthcare13202648" target="_blank" >https://doi.org/10.3390/healthcare13202648</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/healthcare13202648" target="_blank" >10.3390/healthcare13202648</a>
Alternative languages
Result language
angličtina
Original language name
Inter-Finger Variability of SpO2 During Hypoxemia and Step Resaturation
Original language description
Background: Pulse oximetry is a non-invasive method for continuous monitoring of peripheral blood oxygen saturation (SpO2) to estimate arterial oxygen saturation. Previous studies suggested that SpO2 measurements show variability depending on the particular finger that is used for measurement. To date, no study has compared all fingers for SpO2 under hypoxemia and during continuous simultaneous monitoring with randomization of finger sensor placement. Objectives: The aim of this study was to assess the inter-finger variability of SpO2 values during sequential desaturation and step resaturation. Methods: Forty-three out of forty-five healthy participants (age 23.0 ± 1.8 years, BMI 24.0 ± 4.4 kg.m-2) completed the experimental assessment with short-term induced hypoxemia by consecutive inhalation of three prepared gas mixtures with reduced oxygen concentrations (14%, 12%, and 10%). SpO2 was measured continuously with the Masimo Radical-97 (Masimo Corp., Irvine, CA, USA) pulse oximeters. Results: The SpO2 measured on the thumb was lower than all other fingers by 0.6% to 0.7% SpO2, a systematic difference that is less than the clinically accepted accuracy of oximeters. No difference in SpO2 dynamics was found between any of the fingers during step resaturation. Conclusions: A systematic difference in measured SpO2 exists between the thumb and the other fingers during desaturation, which should be considered at least as well as the impact of the performance of a particular oximeter, sensor placement or anatomical variability.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20601 - Medical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Healthcare
ISSN
2227-9032
e-ISSN
2227-9032
Volume of the periodical
13
Issue of the periodical within the volume
20
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
1-11
UT code for WoS article
001601610700001
EID of the result in the Scopus database
2-s2.0-105020078493