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Devices for low flow O2 administration.

A G Stewart1, P Howard

  • 1Dept of Medicine, Royal Hallamshire Hospital, Sheffield, UK.

The European Respiratory Journal
|July 1, 1990
PubMed
Summary
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Nasal prongs are the most practical method for long-term oxygen therapy at home, especially when used with oxygen concentrators. While other devices exist, nasal prongs offer a balance of efficiency, safety, and patient tolerance for continuous oxygen delivery.

Area of Science:

  • Pulmonary Medicine
  • Biomedical Engineering

Background:

  • Long-term oxygen therapy (LTOT) necessitates practical, home-based delivery systems.
  • Current methods like face masks are compliant for limited durations, while nasal prongs, though well-tolerated, are oxygen-wasteful.

Purpose of the Study:

  • To evaluate various oxygen delivery systems for home use in patients requiring long-term oxygen therapy.
  • To identify the most practical and efficient method for oxygen delivery, considering patient compliance and resource utilization.

Main Methods:

  • Review of existing oxygen delivery devices including face masks, nasal prongs, Oxymizer devices, nasopharyngeal catheters, percutaneous transtracheal catheters, and tracheostomy.
  • Assessment of efficiency, practicality, invasiveness, patient tolerance, and cost-effectiveness.

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Main Results:

  • Face masks are efficient but poorly tolerated for prolonged use.
  • Nasal prongs are well-tolerated but wasteful; devices like Oxymizers improve their efficiency.
  • Percutaneous transtracheal catheters offer efficiency and cosmetic advantages but require surgery and carry risks.

Conclusions:

  • Nasal prongs are generally the most reasonable method for home oxygen delivery.
  • Combining nasal prongs with oxygen concentrators significantly reduces oxygen waste and the need for conservation measures.
  • Invasive methods are reserved for cases where standard nasal prongs fail to achieve adequate oxygenation.