Related Experiment Videos
[Evaluation of systematic pulmonary function testing for asthma in children aged three to five years]
1Clinique médicale pédiatrique, hôpital de la Mère et de l'Enfant, CHU Nantes, 9 Quai-Moncousu, 44093 Nantes, France. pediatrie@chsn.fr
Summary
Pulmonary function testing using flow-volume loops and interrupter resistance is feasible and reproducible in preschool children with asthma. Interrupter resistance better correlates with clinical asthma symptoms.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Asthma Research
Context:
- Pulmonary function testing (PFT) is underutilized in preschool children with asthma.
- Early airway function deterioration in pediatric asthma is increasingly recognized.
- Assessing PFT feasibility and clinical utility in young children is crucial.
Purpose:
- To evaluate the feasibility and clinical interest of flow-volume loops and interrupter resistance measurements in preschool children with asthma.
- To assess the reproducibility of these pulmonary function tests (PFTs) in a young pediatric population.
- To determine the correlation between PFT results and clinical parameters in preschool asthmatics.
Summary:
- Flow-volume loops and interrupter resistance measurements were performed before and after salbutamol inhalation in 75 children aged 3-5 years with asthma.
- Feasibility (92%) and reproducibility (91%) rates were high, with 84% of tests being exploitable.
- Interrupter resistance showed significant associations with nocturnal symptoms, exercise-induced symptoms, daytime symptoms, and lack of inhaled corticosteroid treatment, outperforming flow-volume loops in clinical correlation.
Impact:
- Demonstrates that PFTs, specifically interrupter resistance, are viable and reproducible in preschool children with asthma.
- Highlights the potential of interrupter resistance to guide clinical management and treatment modifications in this age group.
- Supports the integration of PFTs into routine asthma care for preschool-aged children, leading to improved diagnostic accuracy and treatment adjustments.