Clinical application of fractional exhaled nitric oxide in the diagnosis and treatment of bronchial asthma in children

Bronchial asthma is a common respiratory disease characterized by chronic airway inflammation.In recent years, fractional exhaled nitric oxide as a non-invasive assessment of airway inflammation detection methods is widely used to determine the nature of airway inflammation, judge the responsiveness of steroids therapy, help to clinical diagnosis and differential diagnosis, adjust hormone therapy, evaluate prognosis.This paper discusses about fractional exhaled nitric oxide′s research progress, production and role, the normal standard, clinical application in children with wheezing and related diseases. Key words: Bronchial asthma; Children; Fractional exhaled nitric oxide; Airway inflammation