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pubmed-article:8403072pubmed:abstractTextEleven children (8-16 years old) hospitalized for acute bronchospasm were included in this investigation. Throughout the study, the children received the standardized course of therapy for hospitalized asthmatics with corticosteroids and albuterol nebulizations. Children receiving ipratropium were excluded from the study. Spirometric measurements, including forced expiratory volume in 1 s (FEV1), were made immediately before and 30 min after each albuterol nebulization over a 24-h period. The well-known temporal changes in FEV1 were observed in patients suffering from nocturnal asthma (NA): basal values were maximal at midday (10 a.m. to 2 p.m.) and lowest in the evening or at night (10 p.m. to 6 a.m.). This 24-h variation in lung function was not found in children without nocturnal exacerbations of their asthma. A 24-h variation was also observed in albuterol-induced bronchodilation in patients with NA: maximal effectiveness occurred at night, and lower effect was obtained with the midday administration. The albuterol-induced increases in FEV1 were not clinically significant in children without nocturnal asthma except when the beta 2-agonist was inhaled between 10 p.m. and 2 a.m. The data suggest that patients with nonnocturnal asthma might have different drug requirements than those with nocturnal symptoms.lld:pubmed
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pubmed-article:8403072pubmed:volume10lld:pubmed
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pubmed-article:8403072pubmed:pagination290-7lld:pubmed
pubmed-article:8403072pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:8403072pubmed:year1993lld:pubmed
pubmed-article:8403072pubmed:articleTitleChronopharmacology of albuterol in hospitalized asthmatic children.lld:pubmed
pubmed-article:8403072pubmed:affiliationSchool of Pharmacy, Université Laval, Sainte-Foy, Quebec, Canada.lld:pubmed
pubmed-article:8403072pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:8403072pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed