High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer

Abstract Carbon monoxide (CO) monitoring in human breath is the focus of many investigations as CO could possibly be used as a marker of various diseases. Detecting CO in human breath remains a challenge because low concentrations (<ppm) must be selectively detected and short response time resolu...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Vivien Brenckmann, Irène Ventrillard, Daniele Romanini, Kévin Jaulin, Pascale Calabrèse, Raphaël Briot
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2ca0b85647e1408fabc968ccb14f6589
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2ca0b85647e1408fabc968ccb14f6589
record_format	dspace
spelling	oai:doaj.org-article:2ca0b85647e1408fabc968ccb14f65892021-12-02T16:08:28ZHigh inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer10.1038/s41598-019-48789-82045-2322https://doaj.org/article/2ca0b85647e1408fabc968ccb14f65892019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48789-8https://doaj.org/toc/2045-2322Abstract Carbon monoxide (CO) monitoring in human breath is the focus of many investigations as CO could possibly be used as a marker of various diseases. Detecting CO in human breath remains a challenge because low concentrations (<ppm) must be selectively detected and short response time resolution is needed to detect the end expiratory values reflecting actual alveolar concentrations. A laser spectroscopy based instrument was developed (ProCeas) that fulfils these requirements. The aim of this study was to validate the use of a ProCeas for human breath analysis in order to measure the changes of endogenous exhaled CO (eCO) induced by different inspired fractions of oxygen (FiO2) ranging between 21% and 100%. This study was performed on healthy volunteers. 30 healthy awaked volunteers (including asymptomatic smokers) breathed spontaneously through a facial mask connected to the respiratory circuit of an anesthesiology station. FiO2 was fixed to 21%, 50% and 100% for periods of 5 minutes. CO concentrations were continuously monitored throughout the experiment with a ProCeas connected to the airway circuit. The respiratory cycles being resolved, eCO concentration is defined by the difference between the value at the end of the exhalation phase and the level during inhalation phase. Inhalation of 100% FiO2 increased eCO levels by a factor of four in every subjects (smokers and non smokers). eCO returned in a few minutes to the initial value when FiO2 was switched back to 21%. This magnification of eCO at 21% and 100% FiO2 is greater than those described in previous publications. We hypothesize that these results can be explained by the healthy status of our subjects (with low basal levels of eCO) and also by the better measurement precision of ProCeas.Vivien BrenckmannIrène VentrillardDaniele RomaniniKévin JaulinPascale CalabrèseRaphaël BriotNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vivien Brenckmann Irène Ventrillard Daniele Romanini Kévin Jaulin Pascale Calabrèse Raphaël Briot High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
description	Abstract Carbon monoxide (CO) monitoring in human breath is the focus of many investigations as CO could possibly be used as a marker of various diseases. Detecting CO in human breath remains a challenge because low concentrations (<ppm) must be selectively detected and short response time resolution is needed to detect the end expiratory values reflecting actual alveolar concentrations. A laser spectroscopy based instrument was developed (ProCeas) that fulfils these requirements. The aim of this study was to validate the use of a ProCeas for human breath analysis in order to measure the changes of endogenous exhaled CO (eCO) induced by different inspired fractions of oxygen (FiO2) ranging between 21% and 100%. This study was performed on healthy volunteers. 30 healthy awaked volunteers (including asymptomatic smokers) breathed spontaneously through a facial mask connected to the respiratory circuit of an anesthesiology station. FiO2 was fixed to 21%, 50% and 100% for periods of 5 minutes. CO concentrations were continuously monitored throughout the experiment with a ProCeas connected to the airway circuit. The respiratory cycles being resolved, eCO concentration is defined by the difference between the value at the end of the exhalation phase and the level during inhalation phase. Inhalation of 100% FiO2 increased eCO levels by a factor of four in every subjects (smokers and non smokers). eCO returned in a few minutes to the initial value when FiO2 was switched back to 21%. This magnification of eCO at 21% and 100% FiO2 is greater than those described in previous publications. We hypothesize that these results can be explained by the healthy status of our subjects (with low basal levels of eCO) and also by the better measurement precision of ProCeas.
format	article
author	Vivien Brenckmann Irène Ventrillard Daniele Romanini Kévin Jaulin Pascale Calabrèse Raphaël Briot
author_facet	Vivien Brenckmann Irène Ventrillard Daniele Romanini Kévin Jaulin Pascale Calabrèse Raphaël Briot
author_sort	Vivien Brenckmann
title	High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
title_short	High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
title_full	High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
title_fullStr	High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
title_full_unstemmed	High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
title_sort	high inhaled oxygen concentration quadruples exhaled co in healthy volunteers monitored by a highly sensitive laser spectrometer
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/2ca0b85647e1408fabc968ccb14f6589
work_keys_str_mv	AT vivienbrenckmann highinhaledoxygenconcentrationquadruplesexhaledcoinhealthyvolunteersmonitoredbyahighlysensitivelaserspectrometer AT ireneventrillard highinhaledoxygenconcentrationquadruplesexhaledcoinhealthyvolunteersmonitoredbyahighlysensitivelaserspectrometer AT danieleromanini highinhaledoxygenconcentrationquadruplesexhaledcoinhealthyvolunteersmonitoredbyahighlysensitivelaserspectrometer AT kevinjaulin highinhaledoxygenconcentrationquadruplesexhaledcoinhealthyvolunteersmonitoredbyahighlysensitivelaserspectrometer AT pascalecalabrese highinhaledoxygenconcentrationquadruplesexhaledcoinhealthyvolunteersmonitoredbyahighlysensitivelaserspectrometer AT raphaelbriot highinhaledoxygenconcentrationquadruplesexhaledcoinhealthyvolunteersmonitoredbyahighlysensitivelaserspectrometer
_version_	1718384458864787456

High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer

Ejemplares similares