- Sattonnet et al (2004)
- Sample size was 205
- Significant improvement in PEFR at 20, 40, and 60 minutes with heliox
- Decreased intubation rates with heliox[16]
- Lee et al (2005)
- Sample size was 80
- More rapid and greater improvement in PEFR with heliox vs O2
- Older patients benefit from heliox[17]
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