Understanding Stenosis of larynx: Causes, Symptoms, and Management

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Stenosis of larynx

by Alike Medical Team ∙ Updated on June 13, 2023

Additional names

This group contains additional names: - Subglottic stenosis

General

Subglottic stenosis refers to a narrowing of the part of the voice box below the vocal cords. Typically, we are born with 4 mm diameter subglottis, and if it’s under 3.5mm it is considered to be narrowed. Congenital subglottic stenosis is when a baby is born with this narrowing due to an incomplete formation of it before birth. Acquired subglottic stenosis happens due to trauma, infection, or intubation that may scar the tissue and cause narrowed airway.

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Signs & symptoms

Symptoms may include high pitched noisy breathing (stridor) both during inhalation and exhalation, recurrent croup in childhood, poor weight gain, and difficulty breathing.

Diagnosis

Diagnosis is based upon findings from medical history and physical examination. Further evaluation may include imaging tests and the diagnosis is confirmed with direct laryngoscopy or bronchoscopy, that can also tell the severity of the narrowing.

Treatment

Treatment depends on the severity of the narrowing and symptoms. Sometimes, monitoring alone is sufficient, in other cases widening with balloon is considered and for severe cases, a surgical procedure is needed.

Note

☝ We provide information on prescription and over-the-counter medicines, diagnosis, procedures and lab tests. This material is provided for educational purposes only and is not medical advice, diagnosis or treatment.

National Institutes of Health ∙ World Health Organization ∙ MedlinePluse ∙ Centers for Disease Control and Prevention

☝ All information has been reviewed by certified physicians from Alike

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