Abstract
Aerosol drug administration using helium-oxygen mixtures as a carrier gas has been advocated in the treatment of severe airway obstruction. Heliums low density has been shown to reduce resistance of gas flow through restricted airways passages, work of breathing, and minute ventilation requirements. Thus, it improves aerosol delivery in patients with acute airway obstruction, during both spontaneous breathing and mechanical ventilation. Although heliox has been shown to improve deposition of particles into the lung, the clinical evidence supporting the benefit of heliox is mixed. This review of the literature from 1934 – 2009 includes a brief review of the history of use of heliox in respiratory medicine, its physical properties and how they relate to the potential effects, limitations, and practical considerations associated with heliox-driven aerosol drug administration in acute and critically ill patients.
Keywords: Helium, oxygen, heliox, inhaled medications, aerosols, bronchodilators, nebulizer
Current Respiratory Medicine Reviews
Title: Aerosol Drug Administration with Helium-Oxygen (Heliox) Mixtures: An Overview
Volume: 6 Issue: 2
Author(s): Arzu Ari and James B. Fink
Affiliation:
Keywords: Helium, oxygen, heliox, inhaled medications, aerosols, bronchodilators, nebulizer
Abstract: Aerosol drug administration using helium-oxygen mixtures as a carrier gas has been advocated in the treatment of severe airway obstruction. Heliums low density has been shown to reduce resistance of gas flow through restricted airways passages, work of breathing, and minute ventilation requirements. Thus, it improves aerosol delivery in patients with acute airway obstruction, during both spontaneous breathing and mechanical ventilation. Although heliox has been shown to improve deposition of particles into the lung, the clinical evidence supporting the benefit of heliox is mixed. This review of the literature from 1934 – 2009 includes a brief review of the history of use of heliox in respiratory medicine, its physical properties and how they relate to the potential effects, limitations, and practical considerations associated with heliox-driven aerosol drug administration in acute and critically ill patients.
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Cite this article as:
Ari Arzu and B. Fink James, Aerosol Drug Administration with Helium-Oxygen (Heliox) Mixtures: An Overview, Current Respiratory Medicine Reviews 2010; 6 (2) . https://dx.doi.org/10.2174/157339810791171278
DOI https://dx.doi.org/10.2174/157339810791171278 |
Print ISSN 1573-398X |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6387 |
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