Last revised by Rohit Sharma on 11 Feb 2020

Stridor is a term to describe an abnormal, high-pitched breath sound produced by abnormal, turbulent air flow with respiration 1. It usually represents narrowing of the large, extrathoracic airways 2.

Stridor can be caused by numerous conditions, but its presence may indicate a serious underlying pathology that requires immediate treatment 2. Causes of stridor include:

Imaging may or may not be required depending on the suspected underlying cause.

Initial management should ensure the airway is patent with adequate breathing and oxygen saturation. Specific treatment will vary depending on the underlying condition.

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