Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use

Abstract Pulse oximetry is routinely used to non-invasively monitor oxygen saturation levels. A low oxygen level in the blood means low oxygen in the tissues, which can ultimately lead to organ failure. Yet, contrary to heart rate variability measures, a field which has seen the development of stabl...

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Autores principales: Jeremy Levy, Daniel Álvarez, Aviv A. Rosenberg, Alexandra Alexandrovich, Félix del Campo, Joachim A. Behar
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/668e4d02796e408fa214177ea6aaf5bd
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spelling oai:doaj.org-article:668e4d02796e408fa214177ea6aaf5bd2021-12-02T14:24:01ZDigital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use10.1038/s41746-020-00373-52398-6352https://doaj.org/article/668e4d02796e408fa214177ea6aaf5bd2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41746-020-00373-5https://doaj.org/toc/2398-6352Abstract Pulse oximetry is routinely used to non-invasively monitor oxygen saturation levels. A low oxygen level in the blood means low oxygen in the tissues, which can ultimately lead to organ failure. Yet, contrary to heart rate variability measures, a field which has seen the development of stable standards and advanced toolboxes and software, no such standards and open tools exist for continuous oxygen saturation time series variability analysis. The primary objective of this research was to identify, implement and validate key digital oximetry biomarkers (OBMs) for the purpose of creating a standard and associated reference toolbox for continuous oximetry time series analysis. We review the sleep medicine literature to identify clinically relevant OBMs. We implement these biomarkers and demonstrate their clinical value within the context of obstructive sleep apnea (OSA) diagnosis on a total of n = 3806 individual polysomnography recordings totaling 26,686 h of continuous data. A total of 44 digital oximetry biomarkers were implemented. Reference ranges for each biomarker are provided for individuals with mild, moderate, and severe OSA and for non-OSA recordings. Linear regression analysis between biomarkers and the apnea hypopnea index (AHI) showed a high correlation, which reached $$\overline R ^2 = 0.82$$ R ¯ 2 = 0.82 . The resulting python OBM toolbox, denoted “pobm”, was contributed to the open software PhysioZoo ( physiozoo.org ). Studying the variability of the continuous oxygen saturation time series using pbom may provide information on the underlying physiological control systems and enhance our understanding of the manifestations and etiology of diseases, with emphasis on respiratory diseases.Jeremy LevyDaniel ÁlvarezAviv A. RosenbergAlexandra AlexandrovichFélix del CampoJoachim A. BeharNature PortfolioarticleComputer applications to medicine. Medical informaticsR858-859.7ENnpj Digital Medicine, Vol 4, Iss 1, Pp 1-14 (2021)
institution DOAJ
collection DOAJ
language EN
topic Computer applications to medicine. Medical informatics
R858-859.7
spellingShingle Computer applications to medicine. Medical informatics
R858-859.7
Jeremy Levy
Daniel Álvarez
Aviv A. Rosenberg
Alexandra Alexandrovich
Félix del Campo
Joachim A. Behar
Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
description Abstract Pulse oximetry is routinely used to non-invasively monitor oxygen saturation levels. A low oxygen level in the blood means low oxygen in the tissues, which can ultimately lead to organ failure. Yet, contrary to heart rate variability measures, a field which has seen the development of stable standards and advanced toolboxes and software, no such standards and open tools exist for continuous oxygen saturation time series variability analysis. The primary objective of this research was to identify, implement and validate key digital oximetry biomarkers (OBMs) for the purpose of creating a standard and associated reference toolbox for continuous oximetry time series analysis. We review the sleep medicine literature to identify clinically relevant OBMs. We implement these biomarkers and demonstrate their clinical value within the context of obstructive sleep apnea (OSA) diagnosis on a total of n = 3806 individual polysomnography recordings totaling 26,686 h of continuous data. A total of 44 digital oximetry biomarkers were implemented. Reference ranges for each biomarker are provided for individuals with mild, moderate, and severe OSA and for non-OSA recordings. Linear regression analysis between biomarkers and the apnea hypopnea index (AHI) showed a high correlation, which reached $$\overline R ^2 = 0.82$$ R ¯ 2 = 0.82 . The resulting python OBM toolbox, denoted “pobm”, was contributed to the open software PhysioZoo ( physiozoo.org ). Studying the variability of the continuous oxygen saturation time series using pbom may provide information on the underlying physiological control systems and enhance our understanding of the manifestations and etiology of diseases, with emphasis on respiratory diseases.
format article
author Jeremy Levy
Daniel Álvarez
Aviv A. Rosenberg
Alexandra Alexandrovich
Félix del Campo
Joachim A. Behar
author_facet Jeremy Levy
Daniel Álvarez
Aviv A. Rosenberg
Alexandra Alexandrovich
Félix del Campo
Joachim A. Behar
author_sort Jeremy Levy
title Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
title_short Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
title_full Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
title_fullStr Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
title_full_unstemmed Digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
title_sort digital oximetry biomarkers for assessing respiratory function: standards of measurement, physiological interpretation, and clinical use
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/668e4d02796e408fa214177ea6aaf5bd
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