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

Research output: Contribution to JournalArticleAcademicpeer-review

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 languageEnglish
Pages (from-to)1073-1087
Number of pages15
JournalHead and Neck
Volume43
Issue number4
DOIs
Publication statusPublished - Apr 2021

Funding

We would like to thank Atos Medical AB (Malmö, Sweden) for providing the HMEs to The Netherlands Cancer Institute – Antoni van Leeuwenhoek. Also, we would like to thank the Verwelius 3D lab of The Netherlands Cancer Institute for making the 3D-printing of the HME cassettes possible. The Netherlands Cancer Institute's Department of Head and Neck Oncology and Surgery receives a research grant from Atos Medical AB (Malmö, Sweden), which contributes to the existing infrastructure for quality of life research of the Department of Head and Neck Oncology and Surgery.

FundersFunder number
Antoni van Leeuwenhoek
Atos Medical AB
Netherlands Cancer Institute
Netherlands Cancer Institute's Department of Head
Verwelius 3D lab of The Netherlands Cancer Institute

    Fingerprint

    Dive into the research topics of 'Adjustable breathing resistance for laryngectomized patients: Proof of principle in a novel heat and moisture exchanger cassette'. Together they form a unique fingerprint.

    Cite this