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Choanal atresia

A J Nemechek1, R G Amedee

  • 1Tulane University School of Medicine, Dept of Otolaryngology, New Orleans.

The Journal of the Louisiana State Medical Society : Official Organ of the Louisiana State Medical Society
|August 1, 1994
PubMed
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Choanal atresia, a rare birth defect, affects 1 in 6,000-8,000 live births. It is more common in females, unilateral, and often involves a bony obstruction in the right nasal passage.

Area of Science:

  • Otolaryngology
  • Pediatric Surgery
  • Medical Genetics

Background:

  • Choanal atresia is a congenital condition characterized by the blockage of the nasal passage.
  • Its precise epidemiological data and common presentations require further clarification.

Purpose of the Study:

  • To elucidate the epidemiological characteristics of choanal atresia.
  • To identify common patterns in affected individuals.

Main Methods:

  • Review of existing epidemiological studies and case reports.
  • Analysis of incidence rates, sex distribution, laterality, and lesion type.

Main Results:

  • Incidence ranges from 1 in 6,000 to 8,000 live births.
  • A slight female predominance (51-53%) is observed.

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  • Unilateral choanal atresia (60-64%) is more frequent than bilateral.
  • The right nasal passage is more commonly affected.
  • Bony atresia (90%+) is more prevalent than membranous atresia.

    • Conclusions:

    • Choanal atresia is a rare congenital anomaly with specific epidemiological trends.
    • Understanding these patterns aids in diagnosis and management planning.