Current Management of Congenital Choanal Atresia: Litteratur Review

Congenital Choanal Artesia (CCA) is a rare cause of upper airway obstruction, yet it is the most common congenital anomaly of the nose. While the unilateral condition could be undiagnosed, bilateral CCA may be life-threatening, especially for newborns. Some CCA may be associated with other congenital abnormalities, which leads to a systematic screening during the diagnostic assessment. The diagnosis is easy. However, surgical management is still controversial.

We conducted a retrospective study gathering data on management of CCA over 42 months. We reported epidemiological aspects and results of our series, and discussed management issues.

We operated 22 choanae using the endoscopic technique. The age of bilateral CCA patients on the day of surgery ranged from 8 to 21 days (mean 11.7+/_ 2.6 days). Their birth weight ranged from 2.9 to 4.5 kg (mean 3.4 +/_ 0.5 kg), and their gestational age ranged from 30 to 41 weeks. Surgery duration for neonatal bilateral CCA repair ranged from 75 to 110 min (mean 90 min +/_ 11.5 min). We performed an exclusive endonasal endoscopic approach for all patients with no stenting or mitomycin C application. We deplore one post operative complication related to minor palatal perforation resolved spontaneously.

Since newborns solely depend on nasal breathing during the first month of life, bilateral CCA is an emergency. Endonasal endoscopic management is the primary procedure. Currently, surgery steps are standardized. However, how to prevent post-operative synechiae and restenosis is still controversial. The mainstream is meticulous post-operative nursing with frequent endonasal saline irrigation, regular removal of crust, and prevention of inflammation due to reflux or infection.