Heat and moisture exchange capacity of the upper respiratory tract and the effect of tracheotomy breathing on endotracheal climate

Renske J. Scheenstra, Sara H. Muller, Andrew Vincent, Frans J.M. Hilgers

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Background The aim of this study was to assess the heat and moisture exchange (HME) capacity of the upper respiratory tract and the effect of tracheotomy breathing on endotracheal climate in patients with head and neck cancer. Methods We plotted the subglottic temperature and humidity measurements in 10 patients with head and neck cancer with a temporary precautionary tracheotomy during successive 10-minute periods of nose, mouth, and tracheotomy breathing in a randomized sequence. Results End-inspiratory temperatures of nose, mouth, and tracheotomy breathing were 31.1, 31.3, and 28.3°C, respectively. End-inspiratory humidity measurements of nose, mouth, and tracheotomy breathing were 29.3, 28.6, and 21.1 mgH 2O/L, respectively. There was a trend toward lower end-inspiratory humidity in patients with radiotherapy or with large surgery-induced oropharyngeal mucosal defects, whereas temperatures were similar. Conclusion This study gives objective information about the HME capacity of the upper respiratory tract in patients with head and neck cancer with precautionary tracheotomy, and thus provides target values for HMEs for laryngectomized and tracheotomized patients.

Original languageEnglish
Pages (from-to)117-124
Number of pages8
JournalHead and Neck
Volume33
Issue number1
DOIs
Publication statusPublished or Issued - 1 Jan 2011
Externally publishedYes

Keywords

  • air conditioning
  • humidity
  • laryngectomy
  • temperature
  • tracheotomy

ASJC Scopus subject areas

  • Otorhinolaryngology

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