title: A trial of metaproterenol by metered-dose inhaler and two spacers in preschool asthmatics.
abstract: Because most young children have difficulty in coordination for correct use of metered-dose inhalers (MDI), a trial of two spacer devices attached to MDIs was performed. In 13 children with asthma, aged 2-5 years old, a collapsible bag (Inspir-Ease) and a tube spacer (Aerochamber) were tested in a double-blind crossover trial with metaproterenol (1,300 micrograms). Respiratory resistance was measured by the forced oscillation method. Thirty minutes after metaproterenol administration there was a significant decrease in resistance with both spacers, while no significant change occurred after placebo administration. There was no difference in degree of bronchodilation between the two spacers. It is concluded that metaproterenol can be safely and effectively administered to preschool asthmatics by an MDI with spacer devices.
authors.affiliation: Department of Child Health, University of Missouri, Columbia.
authors.forename: P
authors.initials: P
authors.lastname: König
authors.forename: D
authors.initials: D
authors.lastname: Gayer
authors.forename: A
authors.initials: A
authors.lastname: Kantak
authors.forename: C
authors.initials: C
authors.lastname: Kreutz
authors.forename: B
authors.initials: B
authors.lastname: Douglass
authors.forename: N L
authors.initials: NL
authors.lastname: Hordvik
mesh_terms: D000280:Administration, Inhalation; D001249:Asthma / Q000188:drug therapy*; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D009921:Metaproterenol / Q000008:administration & dosage* / Q000627:therapeutic use; D009330:Nebulizers and Vaporizers; D011897:Random Allocation
chemical_list: D009921:Metaproterenol