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An Upper Airway Crisis 

An Upper Airway Crisis
Chapter:
An Upper Airway Crisis
Author(s):

Mazen O. Al-Qadi

and Mark T. Keegan

DOI:
10.1093/med/9780190464813.003.0025
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date: 20 October 2019

Laryngospasm is a potentially life-threatening event that is characterized by spasm of the glottic muscles, which leads to reflex partial or complete upper airway obstruction. Contraction of the intrinsic laryngeal muscles is a protective reflex of the airway (during swallowing) that occurs through stimulation of the afferent fibers of the superior laryngeal nerve. Usually inhibited, it may be provoked by abnormal excitation, such as “light” anesthesia.

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