Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing

Georg Nilius,1,2 Ulrike Domanski,1 Maik Schroeder,1 Holger Woehrle,3,4 Andrea Graml,4 Karl-Josef Franke,1,2 1Helios Klinik Hagen-Ambrock, Department of Pneumology, Hagen, Germany; 2Department of Internal Medicine, Witten-Herdecke University, Witten, Germany; 3Sleep and Ventilation Center Blaubeuren...

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Autores principales:	Nilius G, Domanski U, Schroeder M, Woehrle H, Graml A, Franke KJ
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	continuous positive airway pressure humidification temperature leakage Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
Acceso en línea:	https://doaj.org/article/59d57aa602e94de9bb90da8026876412
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spelling	oai:doaj.org-article:59d57aa602e94de9bb90da80268764122021-12-02T05:16:52ZMask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing1179-1608https://doaj.org/article/59d57aa602e94de9bb90da80268764122018-05-01T00:00:00Zhttps://www.dovepress.com/mask-humidity-during-cpap-influence-of-ambient-temperature-heated-humi-peer-reviewed-article-NSShttps://doaj.org/toc/1179-1608Georg Nilius,1,2 Ulrike Domanski,1 Maik Schroeder,1 Holger Woehrle,3,4 Andrea Graml,4 Karl-Josef Franke,1,2 1Helios Klinik Hagen-Ambrock, Department of Pneumology, Hagen, Germany; 2Department of Internal Medicine, Witten-Herdecke University, Witten, Germany; 3Sleep and Ventilation Center Blaubeuren, Respiratory Center Ulm, Ulm, Germany; 4ResMed Science Center, ResMed Germany, Martinsried, Germany Purpose: Mucosal drying during continuous positive airway pressure (CPAP) therapy is problematic for many patients. This study assessed the influence of ambient relative humidity (rH) and air temperature (T) in winter and summer on mask humidity during CPAP, with and without mask leak, and with or without heated humidification ± heated tubing. Methods: CPAP (8 and 12 cmH2O) without humidification (no humidity [nH]), with heated humidification controlled by ambient temperature and humidity (heated humidity [HH]) and HH plus heated tubing climate line (CL), with and without leakage, were compared in 18 subjects with OSA during summer and winter. Results: The absolute humidity (aH) and the T inside the mask during CPAP were significantly lower in winter versus summer under all applied conditions. Overall, absolute humidity differences between summer and winter were statistically significant in both HH and CL vs. nH (p < 0.05) in the presence and absence of mouth leak. There were no significant differences in aH between HH and CL. However, in-mask temperature during CL was higher (p < 0.05) and rH lower than during HH. In winter, CPAP with CL was more likely to keep rH constant at 80% than CPAP without humidification or with standard HH. Conclusion: Clinically-relevant reductions in aH were documented during CPAP given under winter conditions. The addition of heated humidification, using a heated tube to avoid condensation is recommended to increase aH, which could be useful in CPAP users complaining of nose and throat symptoms. Keywords: continuous positive airway pressure, humidification, temperature, leakageNilius GDomanski USchroeder MWoehrle HWoehrle HGraml AFranke KJDove Medical Pressarticlecontinuous positive airway pressurehumidificationtemperatureleakagePsychiatryRC435-571Neurophysiology and neuropsychologyQP351-495ENNature and Science of Sleep, Vol Volume 10, Pp 135-142 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	continuous positive airway pressure humidification temperature leakage Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
spellingShingle	continuous positive airway pressure humidification temperature leakage Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495 Nilius G Domanski U Schroeder M Woehrle H Woehrle H Graml A Franke KJ Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing
description	Georg Nilius,1,2 Ulrike Domanski,1 Maik Schroeder,1 Holger Woehrle,3,4 Andrea Graml,4 Karl-Josef Franke,1,2 1Helios Klinik Hagen-Ambrock, Department of Pneumology, Hagen, Germany; 2Department of Internal Medicine, Witten-Herdecke University, Witten, Germany; 3Sleep and Ventilation Center Blaubeuren, Respiratory Center Ulm, Ulm, Germany; 4ResMed Science Center, ResMed Germany, Martinsried, Germany Purpose: Mucosal drying during continuous positive airway pressure (CPAP) therapy is problematic for many patients. This study assessed the influence of ambient relative humidity (rH) and air temperature (T) in winter and summer on mask humidity during CPAP, with and without mask leak, and with or without heated humidification ± heated tubing. Methods: CPAP (8 and 12 cmH2O) without humidification (no humidity [nH]), with heated humidification controlled by ambient temperature and humidity (heated humidity [HH]) and HH plus heated tubing climate line (CL), with and without leakage, were compared in 18 subjects with OSA during summer and winter. Results: The absolute humidity (aH) and the T inside the mask during CPAP were significantly lower in winter versus summer under all applied conditions. Overall, absolute humidity differences between summer and winter were statistically significant in both HH and CL vs. nH (p < 0.05) in the presence and absence of mouth leak. There were no significant differences in aH between HH and CL. However, in-mask temperature during CL was higher (p < 0.05) and rH lower than during HH. In winter, CPAP with CL was more likely to keep rH constant at 80% than CPAP without humidification or with standard HH. Conclusion: Clinically-relevant reductions in aH were documented during CPAP given under winter conditions. The addition of heated humidification, using a heated tube to avoid condensation is recommended to increase aH, which could be useful in CPAP users complaining of nose and throat symptoms. Keywords: continuous positive airway pressure, humidification, temperature, leakage
format	article
author	Nilius G Domanski U Schroeder M Woehrle H Woehrle H Graml A Franke KJ
author_facet	Nilius G Domanski U Schroeder M Woehrle H Woehrle H Graml A Franke KJ
author_sort	Nilius G
title	Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing
title_short	Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing
title_full	Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing
title_fullStr	Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing
title_full_unstemmed	Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing
title_sort	mask humidity during cpap: influence of ambient temperature, heated humidification and heated tubing
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/59d57aa602e94de9bb90da8026876412
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_version_	1718400469941878784

Mask humidity during CPAP: influence of ambient temperature, heated humidification and heated tubing

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