Laryngeal dyspnea is a common syndrome that originates from many different causes. Accordingly, laryngeal dyspnea in children, if not examined and treated promptly, can face a very high risk of death due to the inability to provide oxygen to the body. Therefore, it requires doctors to diagnose quickly, accurately and handle promptly.

Acute subglottic laryngitis is diagnosed when symptoms last less than 3 weeks. Clinical manifestations will depend on the cause, the area of the larynx affected, and the age of the patient. Acute subglottic laryngitis in children is often more severe than in adults, because the laryngeal diameter in children is smaller.