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Helium oxygen mixtures in the intensive care unit
1University Hospital, Geneva, Switzerland. chevrole@cmu.unige.ch
Critical Care (London, England)
|August 21, 2001
Summary
Heliox, a helium and oxygen mixture, reduces breathing work in patients with airway resistance. While beneficial in conditions like asthma and COPD, its routine use is currently limited by cost and technical issues.
Area of Science:
- Respiratory Medicine
- Gas Therapy
Background:
- Heliox, a helium and oxygen gas mixture, possesses lower density than air.
- This property can reduce airflow resistance in the respiratory system.
Purpose of the Study:
- To evaluate the potential benefits of heliox therapy in conditions with increased airway resistance.
- To assess the impact of heliox on the work of breathing (WOB).
Main Methods:
- The study reviews existing observations on heliox administration.
- It considers conditions such as asthma, COPD, bronchiolitis, bronchopulmonary dysplasia, and upper airway obstruction.
Main Results:
- Heliox breathing has shown beneficial effects by decreasing airflow resistance and WOB.
- Observed benefits are particularly noted in patients with obstructive airway diseases.
Conclusions:
- Heliox therapy may offer advantages for specific respiratory conditions.
- Further conclusive data is required to establish efficacy.
- Current limitations include technical challenges and high costs, precluding routine implementation.