Conditions + Treatments

Symptoms & Causes of Subglottic Stenosis

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What are the Symptoms of Subglottic Stenosis?

Symptoms of subglottic stenosis include:

  • Noisy breathing (stridor)
  • Respiratory distress
  • Poor weight gain
  • Blue spells (cyanotic episodes)
  • Recurrent croup or lung infections

What Causes Subglottic Stenosis?

Subglottic stenosis can be present at birth (congenital) or acquired. The cause of congenital subglottic stenosis is unknown.

Acquired subglottic stenosis can develop when scar tissue forms in the trachea due to prolonged intubation and/or previous airway surgery. Intubation is when a breathing tube is inserted into the trachea to help maintain breathing during a medical or surgical procedure.

Boys and girls of all ethnic backgrounds are equally at risk for subglottic stenosis.

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