Adjustable breathing resistance for laryngectomized patients: Proof of principle in a novel heat and moisture exchanger cassette

Maartje Leemans; Sara H. Muller; Maarten J. A. van Alphen; Wim Vallenduuk; Richard Dirven; Michiel W. M. van den Brekel

doi:10.1002/hed.26571

Adjustable breathing resistance for laryngectomized patients: Proof of principle in a novel heat and moisture exchanger cassette

Maartje Leemans, Sara H. Muller, Maarten J. A. van Alphen, Wim Vallenduuk, Richard Dirven, Michiel W. M. van den Brekel^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

5 Citations (Scopus)

8 Downloads (Pure)

Abstract

Background
Due to the heat and moisture exchanger's (HME) breathing resistance, laryngectomized patients cannot always use an (optimal) HME during physical exercise. We propose a novel HME cassette concept with adjustable “bypass,” to provide adjustment between different breathing resistances within one device.

Methods
Under standardized conditions, the resistance and humidification performance of a high resistance/high humidification HME (XM) foam in a cassette with and without bypass were compared to a lower resistance/lesser humidification HME (XF) foam in a closed cassette.

Results
With a bypass in the cassette, the resistance and humidification performance of XM foam were similar to those of XF foam in the closed cassette. Compared to XM foam in the closed cassette, introducing the bypass resulted in a 40% resistance decrease, whereas humidification performance was maintained at 80% of the original value.

Conclusions
This HME cassette prototype allows adjustment between substantially different resistances while maintaining appropriate humidification performances.

Original language	English
Pages (from-to)	1073-1087
Journal	Head & neck
Volume	43
Issue number	4
DOIs	https://doi.org/10.1002/hed.26571
Publication status	Published - Apr 2021
Externally published	Yes

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10.1002/hed.26571Licence: CC BY

Head Neck - 2020 - Leemans - Adjustable breathing resistance for laryngectomized patients Proof of principle in a novelFinal published version, 1.7 MBLicence: CC BY

Cite this

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title = "Adjustable breathing resistance for laryngectomized patients: Proof of principle in a novel heat and moisture exchanger cassette",

abstract = "BackgroundDue to the heat and moisture exchanger's (HME) breathing resistance, laryngectomized patients cannot always use an (optimal) HME during physical exercise. We propose a novel HME cassette concept with adjustable “bypass,” to provide adjustment between different breathing resistances within one device.MethodsUnder standardized conditions, the resistance and humidification performance of a high resistance/high humidification HME (XM) foam in a cassette with and without bypass were compared to a lower resistance/lesser humidification HME (XF) foam in a closed cassette.ResultsWith a bypass in the cassette, the resistance and humidification performance of XM foam were similar to those of XF foam in the closed cassette. Compared to XM foam in the closed cassette, introducing the bypass resulted in a 40% resistance decrease, whereas humidification performance was maintained at 80% of the original value.ConclusionsThis HME cassette prototype allows adjustment between substantially different resistances while maintaining appropriate humidification performances.",

author = "Maartje Leemans and Muller, {Sara H.} and Alphen, {Maarten J. A. van} and Wim Vallenduuk and Richard Dirven and Brekel, {Michiel W. M. van den}",

year = "2021",

month = apr,

doi = "10.1002/hed.26571",

language = "English",

volume = "43",

pages = "1073--1087",

journal = "Head & neck",

issn = "1043-3074",

publisher = "Wiley",

number = "4",

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T1 - Adjustable breathing resistance for laryngectomized patients: Proof of principle in a novel heat and moisture exchanger cassette

AU - Leemans, Maartje

AU - Muller, Sara H.

AU - Alphen, Maarten J. A. van

AU - Vallenduuk, Wim

AU - Dirven, Richard

AU - Brekel, Michiel W. M. van den

PY - 2021/4

Y1 - 2021/4

N2 - BackgroundDue to the heat and moisture exchanger's (HME) breathing resistance, laryngectomized patients cannot always use an (optimal) HME during physical exercise. We propose a novel HME cassette concept with adjustable “bypass,” to provide adjustment between different breathing resistances within one device.MethodsUnder standardized conditions, the resistance and humidification performance of a high resistance/high humidification HME (XM) foam in a cassette with and without bypass were compared to a lower resistance/lesser humidification HME (XF) foam in a closed cassette.ResultsWith a bypass in the cassette, the resistance and humidification performance of XM foam were similar to those of XF foam in the closed cassette. Compared to XM foam in the closed cassette, introducing the bypass resulted in a 40% resistance decrease, whereas humidification performance was maintained at 80% of the original value.ConclusionsThis HME cassette prototype allows adjustment between substantially different resistances while maintaining appropriate humidification performances.

AB - BackgroundDue to the heat and moisture exchanger's (HME) breathing resistance, laryngectomized patients cannot always use an (optimal) HME during physical exercise. We propose a novel HME cassette concept with adjustable “bypass,” to provide adjustment between different breathing resistances within one device.MethodsUnder standardized conditions, the resistance and humidification performance of a high resistance/high humidification HME (XM) foam in a cassette with and without bypass were compared to a lower resistance/lesser humidification HME (XF) foam in a closed cassette.ResultsWith a bypass in the cassette, the resistance and humidification performance of XM foam were similar to those of XF foam in the closed cassette. Compared to XM foam in the closed cassette, introducing the bypass resulted in a 40% resistance decrease, whereas humidification performance was maintained at 80% of the original value.ConclusionsThis HME cassette prototype allows adjustment between substantially different resistances while maintaining appropriate humidification performances.

U2 - 10.1002/hed.26571

DO - 10.1002/hed.26571

M3 - Article

SN - 1043-3074

VL - 43

SP - 1073

EP - 1087

JO - Head & neck

JF - Head & neck

IS - 4

ER -

Adjustable breathing resistance for laryngectomized patients: Proof of principle in a novel heat and moisture exchanger cassette

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