In patients without antenatal diagnosis, the diagnosis is sometimes made by autopsy ( 2, 3). Presence of findings of congenital high airway obstruction syndrome (CHAOS) including enlargement and increased echogenicity in the lungs, enlargement in the upper airways, shift of the heart to the midline, hydrops fetalis and flattened or depressed diaphragm on antenatal ultrasonography, suggests LA. Failed endotracheal intubation and absence of audible cry despite crying effort are significant findings in the diagnosis of the disease in newborns who require intubation because of severe respiratory distress following delivery ( 1).
Laryngeal atresia (LA) is a congenital cause of upper airway obstruction that may lead to mortality immediately after delivery.
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