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Pulse Oximeter Performance during Rapid Desaturation

The reliability of pulse oximetry is crucial, especially in cases of rapid changes in body oxygenation. In order to evaluate the performance of pulse oximeters during rapidly developing short periods of concurrent hypoxemia and hypercapnia, 13 healthy volunteers underwent 3 breathing phases during o...

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Autores principales: Horakova, Lenka, Roubik, Karel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185462/
https://www.ncbi.nlm.nih.gov/pubmed/35684858
http://dx.doi.org/10.3390/s22114236
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author Horakova, Lenka
Roubik, Karel
author_facet Horakova, Lenka
Roubik, Karel
author_sort Horakova, Lenka
collection PubMed
description The reliability of pulse oximetry is crucial, especially in cases of rapid changes in body oxygenation. In order to evaluate the performance of pulse oximeters during rapidly developing short periods of concurrent hypoxemia and hypercapnia, 13 healthy volunteers underwent 3 breathing phases during outdoor experiments (39 phases in total), monitored simultaneously by five different pulse oximeters. A significant incongruity in values displayed by the tested pulse oximeters was observed, even when the accuracy declared by the manufacturers were considered. In 28.2% of breathing phases, the five used devices did not show any congruent values. The longest uninterrupted congruent period formed 74.4% of total recorded time. Moreover, the congruent periods were rarely observed during the critical desaturation phase of the experiment. The time difference between the moments when the first and the last pulse oximeter showed the typical study endpoint values of SpO(2) 85% and 75% was 32.1 ± 23.6 s and 24.7 ± 19.3 s, respectively. These results suggest that SpO(2) might not be a reliable parameter as a study endpoint, or more importantly as a safety limit in outdoor experiments. In the design of future studies, more parameters and continuous clinical assessment should be included.
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spelling pubmed-91854622022-06-11 Pulse Oximeter Performance during Rapid Desaturation Horakova, Lenka Roubik, Karel Sensors (Basel) Article The reliability of pulse oximetry is crucial, especially in cases of rapid changes in body oxygenation. In order to evaluate the performance of pulse oximeters during rapidly developing short periods of concurrent hypoxemia and hypercapnia, 13 healthy volunteers underwent 3 breathing phases during outdoor experiments (39 phases in total), monitored simultaneously by five different pulse oximeters. A significant incongruity in values displayed by the tested pulse oximeters was observed, even when the accuracy declared by the manufacturers were considered. In 28.2% of breathing phases, the five used devices did not show any congruent values. The longest uninterrupted congruent period formed 74.4% of total recorded time. Moreover, the congruent periods were rarely observed during the critical desaturation phase of the experiment. The time difference between the moments when the first and the last pulse oximeter showed the typical study endpoint values of SpO(2) 85% and 75% was 32.1 ± 23.6 s and 24.7 ± 19.3 s, respectively. These results suggest that SpO(2) might not be a reliable parameter as a study endpoint, or more importantly as a safety limit in outdoor experiments. In the design of future studies, more parameters and continuous clinical assessment should be included. MDPI 2022-06-02 /pmc/articles/PMC9185462/ /pubmed/35684858 http://dx.doi.org/10.3390/s22114236 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Horakova, Lenka
Roubik, Karel
Pulse Oximeter Performance during Rapid Desaturation
title Pulse Oximeter Performance during Rapid Desaturation
title_full Pulse Oximeter Performance during Rapid Desaturation
title_fullStr Pulse Oximeter Performance during Rapid Desaturation
title_full_unstemmed Pulse Oximeter Performance during Rapid Desaturation
title_short Pulse Oximeter Performance during Rapid Desaturation
title_sort pulse oximeter performance during rapid desaturation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185462/
https://www.ncbi.nlm.nih.gov/pubmed/35684858
http://dx.doi.org/10.3390/s22114236
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AT roubikkarel pulseoximeterperformanceduringrapiddesaturation