Abstract: As the most common disease in children, respiratory diseases have always been the focus of diagnosis and treatment for pediatric clinicians. Current studies have confirmed that various mechanisms, such as genetic, environmental and inflammatory mediators, can affect their occurrence and development. Based on different lesion characteristics, multiple auxiliary examinations can be used as the evaluation means of airway injury assessment. In recent years, the idea of small airway disorder has led the research in respiratory diseases into a new era, so it is particularly important to apply appropriate technology to accurately locate the site of airway inflammation and damage, which can help clinicians to achieve more accurate treatment. This paper will review the current application of various examination techniques and the current status of research.

Key words:

Respiratory disease, Airway injury, Children