Investigation and treatment of chronic stridor in infancy.

Stridor is relatively common in infants, in whom any inflammation of the small, anteriorly placed, neurologically immature upper airway can lead to significant airflow obstruction. Persistent stridor is most commonly due to laryngomalacia but may be due to a range of other structural abnormalities. A clinical diagnosis can often be made based on age, associated symptoms and the nature of the stridor. With the exception of classical mild laryngomalacia, diagnosis is confirmed by endoscopy and/or imaging. With collaboration between all health practitioners involved, the correct diagnosis and appropriate treatment can be provided.