Choanal Atresia

Posted by e-Medical PPT Saturday, September 18, 2010
Choanal atresia is a congenital disorder where the back of the nasal passage (choana) is blocked, usually by abnormal bony or soft tissue formed during fetal development.It can be unilateral or bilateral.Bilateral choanal atresia is a very serious life-threatening condition because the baby will then be unable to breathe directly after birth as babies are obligate nasal breathers.In some cases, this may present as cyanosis while the baby is feeding, because the oral air passages are blocked by the tongue, further restricting the airway. The cyanosis may improve when the baby cries, as the oral airway is used at this time.Choanal atresia can be suspected if it is impossible to insert a nasal catheter. Also, if one notices a continuous stream of mucous draining from one or both nostrils, it could be a sign of an atresia. Diagnosis is confirmed by radiological imaging, usually CT scan.
CHARGE syndrome,is a syndrome caused by a genetic disorder.The letters stand for: Coloboma of the eye, Heart defects, Atresia of the nasal choanae, Retardation of growth and/or development, Genital and/or urinary abnormalities, and Ear abnormalities and deafness. These features are no longer used in making a diagnosis of CHARGE syndrome.

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1 Response to Choanal Atresia

  1. Anonymous Says:
  2. interesting case , thanks


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