Inter-Finger Variability of SpO2 During Hypoxemia and Step Resaturation

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Inter-Finger Variability of SpO2 During Hypoxemia and Step Resaturation

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Inter-Finger Variability of SpO2 During Hypoxemia and Step Resaturation

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20601 - Medical engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Healthcare

ISSN

2227-9032

e-ISSN

2227-9032

Svazek periodika

13

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001601610700001

EID výsledku v databázi Scopus

2-s2.0-105020078493