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Efficacy of metered-dose inhalers for children with acute asthma exacerbations
Anne Eng Neo Goh1, Jenny Poh Lin Tang, Ho Ling
1KK Women's and Children's Hospital, Singapore, Singapore. anne.goh.en@kkh.com.sg.
Insights
Using a metered-dose inhaler (MDI) with spacers proved effective for managing childhood asthma exacerbations in the emergency room and during inpatient care. This approach reduced readmission rates and healthcare costs, demonstrating its clinical and economic benefits.
Area of Science:
- Pediatric Emergency Medicine
- Respiratory Medicine
- Clinical Pharmacy
Background:
- Acute asthma exacerbations in children present a significant healthcare burden.
- Current management often relies on nebulized bronchodilators.
- Evidence-based pathways are crucial for optimizing acute asthma care.
Purpose of the Study:
- To compare the effectiveness of inhaled beta-agonists via metered-dose inhaler (MDI) with spacers versus nebulization for acute pediatric asthma exacerbations.
- To evaluate the impact of an evidence-based asthma pathway utilizing MDIs on patient outcomes and resource utilization.
Main Methods:
- A case-control study with historical controls was conducted at KK Women's and Children's Hospital.
- Included 19,951 children (infants to 18 years) presenting to the emergency room with asthma exacerbations.
- Compared outcomes before and after implementing an MDI-based asthma pathway.
Main Results:
- No increase in hospital admission rates or intensive/high dependency care admissions was observed with MDI use.
- A significant reduction in 72-hour re-attendance rates was noted (mean difference 1.4%).
- Average length of stay and cost per patient for inpatient asthma exacerbations were reduced.
Conclusions:
- The implementation of an evidence-based asthma pathway using MDIs with spacers is effective for managing acute pediatric asthma exacerbations.
- This approach improves patient outcomes, reduces readmissions, and lowers healthcare costs.
- MDIs with spacers offer a viable and efficient alternative to nebulization in pediatric asthma management.
Objective:
To compare the effectiveness of the administration of inhaled beta-agonists delivered via a metered-dose inhaler (MDI) with spacers--as part of an evidence-based asthma pathway developed to manage acute asthma exacerbations in children at the emergency room level and in inpatient management--against administration via nebulization.
Design:
Case with historical control.
Setting:
KK Women's and Children's Hospital (Singapore).
Participants:
A total of 19,951 children (infants to older children) aged 18 years and younger who attended the emergency room for asthma exacerbations.
Main Outcome Measures:
Average length of stay, proportion admitted to high dependency or intensive care, proportion readmitted for unresolved symptoms within 72 hr, cost per patient and overall.
Results:
There was no increase in the mean proportion of emergency room attendances admitted to inpatient care with use of an MDI (mean difference 0.97%, 95% CI: -1.6-3.5%, P = 0.447), nor of children admitted to intensive care (0.21 vs. 0.20 pre- and post-pathway, P = 0.827) or to high dependency units (2.21 vs. 1.37 pre- and post-pathway, P = 0.200) but a significant reduction in the within 72 hr re-attendance rate (mean difference 1.4%, 95% CI: 0.78-2.0%, P < 0.001) with use of an MDI. The average length and cost per patient for an inpatient stay for acute asthma exacerbations was reduced with use of an MDI.
Conclusions:
The use of an MDI with spacer as part of an evidence-based asthma pathway was effective in the management of acute asthma exacerbations in the emergency room setting and for inpatient management.
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