What is congenital high airway obstruction syndrome?
Also known as: CHAOS, congenital upper airway obstruction.
If a fetus’s upper airway (windpipe/trachea or voice box/larynx) becomes blocked during intrauterine development, the problem is called congenital high airway obstruction syndrome, or CHAOS.
Reviewed by: Jack Wolfsdorf, MD, FAAP
This page was last updated on: 1/29/2019 3:21:13 PM
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