Frans J.M. Hilgers is receiving an unrestricted research grant of Atos Medical, Sweden through the Department of Head and Neck Oncology and Surgery of the Netherlands Cancer Institute.
Influence of breathing resistance of heat and moisture exchangers on tracheal climate and breathing pattern in laryngectomized individuals†
Article first published online: 1 DEC 2009
Copyright © 2009 Wiley Periodicals, Inc.
Head & Neck
Volume 32, Issue 8, pages 1069–1078, August 2010
How to Cite
Scheenstra, R. J., Muller, S. H., Vincent, A., Sinaasappel, M. and Hilgers, F. J. M. (2010), Influence of breathing resistance of heat and moisture exchangers on tracheal climate and breathing pattern in laryngectomized individuals. Head Neck, 32: 1069–1078. doi: 10.1002/hed.21293
Preliminary data from this study were presented at the 7th International Conference on Head and Neck Cancer, San Francisco, California, July 2008.
- Issue published online: 13 JUL 2010
- Article first published online: 1 DEC 2009
- Manuscript Accepted: 3 SEP 2009
- Manuscript Revised: 31 AUG 2009
- Manuscript Received: 7 MAY 2009
- Atos Medical AB, Hörby, Sweden
- total laryngectomy;
- heat and moisture exchanger;
- tracheal climate;
- temperature and humidity;
- breathing resistance
The aim of this study was to determine the influence of breathing resistance of heat and moisture exchangers (HMEs) on endotracheal climate and breathing pattern.
Endotracheal temperature and humidity and tidal volumes were measured in 11 laryngectomized patients with a regularly used HME with “standard” breathing resistance (Provox Normal HME; R-HME), a low breathing-resistance HME (Provox HiFlow HME; L-HME), and without HME.
Both R-HME and L-HME increased end-inspiratory humidity (+5.8 and 4.7 mgH2O/L, respectively), decreased end-inspiratory temperature (−1.6 and −1.0°C, respectively), and prolonged the exhalation breath length to approximately 0.5 seconds. The R-HME significantly enlarged tidal volumes (0.07 L; p < .05).
Both HMEs significantly improve tracheal climate. The R-HME has better moistening properties and a small but significant positive effect on tidal volume. Therefore, if the higher resistance is tolerated, the R-HME is the preferred pulmonary rehabilitation device. The L-HME is indicated if lower breathing resistance is required. © 2009 Wiley Periodicals, Inc. Head Neck, 2010