Stridor

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Overview

  • Stridor refers to musical, high-pitched sounds heard in the upper airways on auscultation. Stridor may even be audible without a stethoscope.
  • Stridor is a sign of upper airway obstruction.
    • Causes of Stridor

    • Soft tissue swelling - peritonsillar abscess, epiglottitis, burns
    • Deformity - laryngomalacia, laryngeal mass / web, tracheomalacia
    • Foreign body aspiration
    • Laryngotracheobronchitis (croup)
    • Tongue enlargement / displacement
    • Vocal cord lesion / paralysis
    • Psychogenic stridor
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