Effect of CPAP on airway reactivity and airway inflammation in children with moderate–severe asthma

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Abstract

Background and objective: Asthma is characterized by airway hyperreactivity and airway inflammation. We previously demonstrated that adults with mild well-controlled asthma exhibited a marked decrease in airway reactivity (PC20 increased >2-fold) after using nocturnal continuous positive airway pressure (CPAP) for 1 week. If CPAP produces a similar suppression of airway reactivity in children with moderate–severe asthma, who require chronic use of corticosteroids, then this non-pharmacological therapy might provide a beneficial alternative or supplemental therapy in these subjects. Methods: Children aged 8–17 years with moderate–severe asthma were treated with 4 weeks of nocturnal CPAP (8–10 cm H 2 O) or sham CPAP (<2 cm H 2 O). Adherence was monitored with a modem installed in the equipment or by memory cards. Airway reactivity, assessed by methacholine bronchial challenge, was measured prior to and following treatment. Results: The percentage of subjects adherent to treatment was similar in both groups (19/27 CPAP vs 19/28 sham, ~70%). There was a tendency for PC20 to increase with treatment in both groups (3.0–5.3 mg/mL CPAP vs 3.2 to 4.3 mg/mL sham, P = 0.083); however, the change did not differ significantly between groups (P = 0.569). Conclusion: We found that the 4-week treatment with nocturnal CPAP did not produce a twofold suppression of airway reactivity in children with moderate–severe asthma.

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CITATION STYLE

APA

Praca, E., Jalou, H., Krupp, N., Delecaris, A., Hatch, J., Slaven, J., … Tepper, R. S. (2019). Effect of CPAP on airway reactivity and airway inflammation in children with moderate–severe asthma. Respirology, 24(4), 338–344. https://doi.org/10.1111/resp.13441

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