pulmonary disorders
Stridor
Etiology of Stridor
Most causes manifest acutely, but some patients present with chronic or recurrent symptoms (see table). Acute causes are usually infectious except for foreign body and allergy. Chronic causes are usually congenital or acquired structural abnormalities of the upper airway. Transient or intermittent stridor can result from aspiration with acute laryngospasm or from Vocal Cord Dysfunction . The most common causes of acute stridor in children include Croup None Esophageal Foreign Bodies None Epiglottitis was a common cause of stridor in children, but its incidence has decreased since the introduction of the Various congenital airway disorders can manifest as recurrent stridor in neonates and infants. Common causes in adults include Vocal Cord Dysfunction (also called paradoxical vocal cord motion) Postextubation laryngeal edema Vocal cord edema or paralysis Laryngeal tumors Allergic reactions Vocal cord dysfunction often mimics Asthma , so many patients with vocal cord dysfunction are incorrectly given medications for asthma but do not respond. Epiglottitis is now more common among adults, but adults with epiglottitis are less likely than children to have stridor ( Etiology reference ). 1.Shah RK, Stocks C. Epiglottitis in the United States: national trends, variances, prognosis, and management.Laryngoscope2010;120(6):1256-1262. doi:10.1002/lary.20921 