Post on Choanal Atresia

choanal_atresia2_mediumChoanal Atresia is a rare malformation of the posterior nasal cavity. It results from persistence of the bucconasal membrane of Hochstetter and affects about 1 in 6,000 live births. This can be a frustrating and frightening encounter as infants are obligate nasal breathers. Females are affected twice as often as males and unilateral is twice as common as bilateral. When the atresia is unilateral, the right side is affected twice as often as the left. 90% of atresias are boney whereas 10% are membranous, about half of the atresia cases are associated with other congenital anomalies such as the CHARGE syndrome.

Choanal Atresia