The daily educational pearl – Causes of stridor

Causes of stridor 

foreign bodies

infections – croup, epiglottitis, tracheitis; retropharyngeal or other deep neck space infection

anaphylaxis / angioedema

laryngeal or tracheal trauma

vocal cord paralysis

lesions of the vocal cords – benign or malignant


In very young children:


subglottic stenosis

vascular rings


Be extremely cautious when diagnosing croup in children under 6 months or over 4 years, as it is extremely uncommon at these ages.




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