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Routine pulmonary function tests in young adolescents with asthma in general practice

P H Hewson1, E A Tippett, D M Jones

  • 1Colac Hospital, VIC.

The Medical Journal of Australia
|November 4, 1996
PubMed
Summary
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Routine pulmonary function tests using flow-loop spirometry are valuable for assessing asthma severity in adolescents. This study found that spirometry results did not correlate with symptoms in 30% of cases, highlighting the need for careful interpretation in this age group.

Area of Science:

  • Pediatric Pulmonology
  • Clinical Medicine
  • Respiratory Health

Background:

  • Asthma management in adolescents requires accurate assessment of airway function.
  • Clinical evaluation and patient self-reporting may not always align with objective lung function measures.
  • Flow-loop spirometry offers objective data for assessing respiratory conditions.

Purpose of the Study:

  • To evaluate the utility of routine pulmonary function tests (PFTs) via flow-loop spirometry in young adolescents with asthma.
  • To compare PFT results with clinical assessments and patient-reported symptoms of asthma severity.
  • To determine the correlation between spirometry findings and asthma control in a pediatric population.

Main Methods:

  • A prospective clinical study was conducted in a rural community general practice.

Related Experiment Videos

  • Young adolescents (10-15 years) with asthma were enrolled over a two-year period.
  • Study compared clinical assessment and self-reporting with pulmonary function test results, focusing on forced expiratory volume in one second (FEV1%) and forced expiratory flow rate (FEF25%-75%).

    • Main Results:

    • Pulmonary function tests did not correlate with asthma symptoms and treatment in 30% of the 37 assessments performed on 27 adolescents.
    • Discrepancies were observed between perceived asthma control and objective spirometry readings.
    • Eight patients accounted for the 11 assessments where PFT results did not align with clinical presentation.

    Conclusions:

    • Routine pulmonary function testing by flow-loop spirometry is supported for assessing both acute and chronic asthma in adolescents.
    • The study suggests potential for over- or underestimation of asthma severity when relying solely on clinical assessment in this age group.
    • Further research in larger populations is recommended to refine the role of spirometry in adolescent asthma management.