Bronchodilation in infants with malacia or recurrent wheeze
January 2003
Article
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BACKGROUND: Controversy remains regarding the effectiveness of bronchodilators in wheezy infants. AIMS: To assess the effect of inhaled beta(2) agonists on lung function in infants with malacia or recurrent wheeze, and to determine whether a negative effect of beta(2) agonists on forced expiratory flow (V'(maxFRC)) is more pronounced in infants with airway malacia, compared to infants with wheeze. METHODS: We retrospectively analysed lung function data of 27 infants: eight with malacia, 19 with recurrent wheeze. Mean (SD) age was 51 (18) weeks. Mean V'(maxFRC) (in Z score) was assessed before and after inhalation of beta(2) agonists. RESULTS: Baseline V'(maxFRC) was below reference values for both groups. Following inhalation of beta(2) agonists the mean (95% CI) change in mean V'(maxFRC) in Z scores was -0.10 (-0.26 to 0.05) and -0.33 (-0.55 to -0.11) for the malacia and wheeze group, respectively. CONCLUSIONS: In infants with wheeze, inhaled beta(2) agonists caused a significant reduction in mean V'(maxFRC). Infants with malacia were not more likely to worsen after beta(2) agonists than were infants with recurrent wheeze.
- Male
- Female
- Humans
- Research Support, Non-U.S. Gov't
- Administration, Oral
- Recurrence
- Infant
- Retrospective Studies
- Adrenergic beta-Agonists/*administration & dosage/adverse effects
- Albuterol/administration & dosage
- Bronchial Diseases/drug therapy/*physiopathology
- Bronchodilator Agents/*administration & dosage/adverse effects
- Forced Expiratory Flow Rates/drug effects
- Dilatation, Pathologic/physiopathology
- Respiratory Function Tests/methods
- Respiratory Sounds/*physiopathology
- Terbutaline/administration & dosage
- infant
- agonist
- vmaxfrc
- wheeze
- airway
- malacia
- 2 agonist administration
- group
- wheeze group
- 2 agonists
- airway malacia
- wheezy infants
- bronchodilation
- measurement
- function
- effect
- article
- technique
- reduction
- administration