What is a key characteristic of choanal atresia?

A key characteristic of choanal atresia is indeed the blockage of the nasal passage, which is crucial for the respiratory function in neonates. In this condition, the back of the nasal passage is either completely blocked or narrowed, preventing air from flowing freely through the nasal cavity. This obstruction can lead to significant respiratory distress, particularly in newborns who are obligate nasal breathers, meaning they primarily breathe through their noses.

Because of this blockage, affected infants may exhibit symptoms such as difficulty breathing, cyanosis (bluish discoloration of the skin due to lack of oxygen), and feeding difficulties since they cannot breathe properly while feeding. Early recognition and intervention are essential to prevent further complications, making awareness of this condition critical in neonatal nursing practice.

This understanding of choanal atresia emphasizes the importance of assessing nasal patency as part of the comprehensive evaluation of newborns.