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Delivery of 100%, 40%, and blow-by humidity did not differ for change in croup scores in children with moderate croup

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Q In children presenting to the emergency department (ED) with moderate croup, what is the relative effectiveness of 100% humidity with optimally sized water particles, 40% humidity, and humidity delivered by the blow-by technique?

METHODS

Embedded ImageDesign:

randomised controlled trial (RCT).

Embedded ImageAllocation:

{concealed}.*

Embedded ImageBlinding:

blinded (healthcare providers, data collectors, and {data analysts}*).

Embedded ImageFollow up period:

30 and 60 minutes.

Embedded ImageSetting:

ED at the Hospital for Sick Children, Toronto, Ontario, Canada.

Embedded ImagePatients:

140 children 3 months to 10 years of age (mean age 25 mo, 69% boys) who presented with croup and had Westley croup scores ⩾2 out of 17 after a 30 minute rest period. Exclusion criteria were need for immediate nebulised epinephrine or intubation, potential alternative cause of stridor, history of chronic pulmonary disease other than asthma, coexistent systemic disease, previous …

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Footnotes

  • * Information provided by author.

  • For correspondence: Dr D Scolnik, Hospital for Sick Children, Toronto, Ontario, Canada. dennis.scolnik{at}sickkids.ca

  • Source of funding: Physicians’ Services Incorporated Foundation of Ontario.