Heated Humidified Oxygen Compared to Dry Oxygen Therapy in Children With Bronchiolitis

2015-04-17 12:08:22 | BioPortfolio


The purpose of this study is to compare heat and humidified oxygen with cold and dry oxygen in children with bronchiolitis.

The hypotheses are that heating and humidifying inspired low flow supplemental oxygen will optimize mucociliary function thereby, 1) improve oxygenation, 2) decrease work of breathing, and 3) decrease length of hospital stay.


Bronchiolitis is the leading cause of acute respiratory illness and hospitalization in infants and young children. The mainstay of treatment is supportive care, which includes frequent nasal suctioning, intravenous fluid hydration, and supplemental oxygen for hypoxemia.

The airways normally heat and humidify inspired ambient air to core temperature amd 100% relative humidity at the carina. This environment, at core temperature, allows for optimal mucociliary clearance. Supplemental oxygen delivered via wall source is cold and dry, and does not reach core temperature and 100% humidity until some point distal to the carina, past the main bronchi. This presses on the lower respiratory tract to assist in heat and moisture exchange and thus decrease ciliary function. This, in combination with bronchiolitis, can impair mucociliary clearance.

Specific aim 1: Determine the effect of heated and humidified oxygen therapy on clinical improvement in children with bronchiolitis, based on Respiratory Distress Assessment Instrument (RDAI) and respiratory rate (RR).

Specific aim 2: Determine the effect of heated and humidified oxygen therapy on length of hospital stay and duration of supplemental oxygen requirement in children with bronchiolitis.

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment




Heated and humidified oxygen


Children's Hospital and Research Center Oakland
United States


Active, not recruiting


Children's Hospital & Research Center Oakland

Results (where available)

View Results


Published on BioPortfolio: 2015-04-17T12:08:22-0400

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