Spirometry use in children hospitalized with asthma

Area of Science:

• Pediatric Pulmonology
• Asthma Management
• Respiratory Medicine

Background:

• Asthma is a leading cause of childhood hospital admissions.
• National Asthma Education and Prevention Program (NAEPP) guidelines recommend spirometry during hospitalization for asthma.
• The utility of pre-discharge spirometry in pediatric asthma patients requires further investigation.

Purpose of the Study:

• To describe spirometry use in children hospitalized with asthma.
• To determine the association between pulmonary function and future asthma exacerbations.

Main Methods:

• Retrospective cohort study of children (≥5 years) hospitalized with asthma.
• Reviewed medical records for spirometry performance and asthma re-exacerbations within 3 months.
• Analyzed spirometry parameters including forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC).

Main Results:

• Only 8.6% of 1,037 admissions had recommended spirometry, often performed by specialists before discharge.
• Acceptable spirometry was achieved by 54.9% of those tested, with older children more likely to perform it.
• Lower FEV1/FVC and FEF25-75 were associated with re-exacerbations, but this association was not significant after adjusting for age and length of stay.

Conclusions:

• Spirometry use in hospitalized pediatric asthma patients often falls short of NAEPP guidelines.
• Lower lung function and prior healthcare utilization are associated with repeat asthma exacerbations.
• The clinical value of routine pre-discharge spirometry in pediatric asthma patients remains uncertain.