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[Physical exercise-induced bronchospasm in asthmatic children. Clinical usefulness of the specific free-running
Insights
Exercise-induced bronchospasm (E.I.B.) in children is common. A free-running exercise test effectively identifies bronchial hyperreactivity and monitors asthma progression in pediatric patients.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Clinical Exercise Physiology
Context:
- Exercise-induced bronchospasm (E.I.B.) is a prevalent condition in asthmatic children.
- Objective assessment of bronchial hyperreactivity is crucial for managing pediatric asthma.
- Standardized exercise testing provides a reliable method for evaluating respiratory responses.
Purpose:
- To investigate correlations between E.I.B. and various clinical-anamnestical parameters in asthmatic children.
- To evaluate the utility of a free-running exercise provocation test in assessing bronchial hyperreactivity.
- To determine the effectiveness of this test in monitoring the course of pediatric asthma.
Summary:
- Thirty-eight asthmatic children underwent a six-minute free-running exercise test to assess E.I.B. using the bronchial obstruction index (b.o.i.).
- Participants were tested out of acute attacks with adequate baseline lung function (PEFR ≥ 80% predicted).
- Correlations between E.I.B. and factors like sex, asthma history, environment, and disease duration were examined.
Impact:
- The study validates the free-running exercise provocation test as a valuable tool for objectively measuring bronchial hyperreactivity in children.
- Findings support the use of this method for monitoring asthma progression and treatment efficacy in pediatric populations.
- This research aids in refining diagnostic and management strategies for exercise-induced bronchospasm in childhood asthma.
Abstract:
Exercise-induced bronchospasm (E.I.B.) is frequently observed in children. Here are reported the correlation between E.I.B. and some clinical-anamnestical parameters found in a group of thirty-eight asthmatic children examined by exercise. The aspecific bronchial provocation test was performed with six minutes free-running. The exercise-induced bronchospasm was estimated by bronchial obstruction index (b.o.i.). All the children were tested at 4 p.m., out of attacks, without clinical signs of airway obstruction, with basal pick-flow rate (PEFR) at least 80% of predicted. We have looked for the possible correlations between E.I.B. and the following parameters: sex, exercise-induced asthma, house heating, season, period of clinical remission, length of the disease and number of attacks per year. These results indicate that bronchial provocation test with free-running is useful in asthmatic children to objectify the bronchial hyperreactivity and to follow-up the course of the disease.