Choanal Atresia

• Persistence of bucconasal membrane
• Can be unilateral or bilateral

• Presence of mucoid discharge in the nose
• Absence of air bubbles in the nasal discharge
• Failure to pass a catheter from nose to pharynx
• Applying a few drops of a dye (methylene blue) into the nose and assess its passage into the pharynx
• Flexible nasal endoscopy
• Installing radio-opaque dye into the nose and taking a lateral film
• CT scan

• McGovern’s technique:  feeding nipple with large holes to make sure mouth breathing occurs
• Removal of a part of posterior nasal septum transnasally

6th edition : Diseases of ENT & HN surgery

PL Dhingra, Shruti Dhingra

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