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[EFFECT OF INSPIRATORY FLOW ON BREATH SOUND ANALYSIS IN CHILDREN WITH ASTHMA]. | LitMetric

AI Article Synopsis

Article Abstract

Background: In order to determine the optimal breathing method for childhood lung sound analyses, it is important to study the effect of airflow on the parameters of lung sounds.

Methods: Sixty-one well-controlled children with atopic asthma (median; 12 years) participated. After confirming that there was no wheezing or respiratory symptoms, the lung sound spectrums of the inspiratory flow before and after inhalation of a β stimulant were analyzed. At the same time, their lung function was measured by a spirogram and the forced oscillation technique.

Results: Before β agonist inhalation, the area under the entire curve (A) and 99% frequency (F) in the lung sound of inspiratory flow around 2.0L/s due to slightly strong breathing were significantly higher than the lung sound of inspiratory flow around 1.0L/s due to rest breathing. However, no marked differences were observed in the lung sound parameters based on the lung sound spectrum. The improvement in the lung sound parameters after β agonist inhalation was clearer at an inspiratory flow around 1.0L/s than that around 2.0L/s.

Conclusion: The present study showed that changes after β agonist inhalation and the correlation with the lung function parameters were clear during resting breathing. This method may be used for the long-term montoring of children with asthma.

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Source
http://dx.doi.org/10.15036/arerugi.69.184DOI Listing

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