Lung

Subglottic Stenosis

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Subglottic Stenosis

  • Definition
  1. Congenital or acquired narrowing of the airway immediately below the level of the Larynx (cricoid cartilage level)
  • Pathophysiology
  1. Subglottic airway is the narrowest portion of the upper airway
  • Epidemiology
  1. Rare
  • Causes
  1. Congenital Anomaly
  2. Acquired
    1. Airway Trauma
      1. Neonatal intubation (postintubation stenosis)
      2. Gastroesophageal Reflux disease
    2. Infectious
      1. Syphilis
      2. Tuberculosis
      3. Typhoid Fever
      4. Diphtheria
  • Symptoms
  1. Infants and young children
    1. Persistent or recurrent Stridor
  2. Older children and adults
    1. Dyspnea on exertion
  • Diagnostics
  1. Pulmonary Function Tests
    1. Typically demonstrates a fixed upper airway obstruction
  • Management
  1. Otolaryngology Consultation in all suspected cases