Choanal Atresia Surgery

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dc.contributor.authorTan, Neil
dc.contributor.authorJonas, Nico
dc.date.accessioned2026-07-16T12:01:58Z
dc.date.available2026-07-16T12:01:58Z
dc.date.issued2025-04-22
dc.description.abstractChoanal atresia is defined as a blockage of the posterior nasal openings. It is a rare condition and has an incidence of 1/7000 live births. It can be unilateral or bilateral. The blockage is purely bony in 30% of cases; in the remaining 70% it is a mixed bony and membranous obstruction (Figure 1). Complete total bony obstruction is extremely rare. It is believed that membranous obstruction occurs due to failure of the bucconasal membrane to rupture sometime between the 5th and 6th weeks of foetal development. Bony obstruction occurs due to a combination of: •A narrow nasal cavity •Medial thickening of the medial ptery-goid plate •Lateral thickening of the vomer
dc.identifier.apacitationTan, N., & Jonas, N. (2025). Choanal Atresia Surgery [OER]. ,Faculty of Health Sciences ,Division of Otorhinolaryngology, Division of Otorhinolaryngology. Retrieved from http://hdl.handle.net/11427/43589en_ZA
dc.identifier.chicagocitationTan, Neil, and Nico Jonas. (2025). "Choanal Atresia Surgery." Lecture presented at ,Faculty of Health Sciences ,Division of Otorhinolaryngology. http://hdl.handle.net/11427/43589en_ZA
dc.identifier.citationTan, N. & Jonas, N. 2025. <i>Choanal Atresia Surgery</i> [OER]. ,Faculty of Health Sciences ,Division of Otorhinolaryngology, Division of Otorhinolaryngology. http://hdl.handle.net/11427/43589en_ZA
dc.identifier.ris TY - Open Education Resource AU - Tan, Neil AU - Jonas, Nico AB - Choanal atresia is defined as a blockage of the posterior nasal openings. It is a rare condition and has an incidence of 1/7000 live births. It can be unilateral or bilateral. The blockage is purely bony in 30% of cases; in the remaining 70% it is a mixed bony and membranous obstruction (Figure 1). Complete total bony obstruction is extremely rare. It is believed that membranous obstruction occurs due to failure of the bucconasal membrane to rupture sometime between the 5th and 6th weeks of foetal development. Bony obstruction occurs due to a combination of: •A narrow nasal cavity •Medial thickening of the medial ptery-goid plate •Lateral thickening of the vomer DA - 2025-04-22 DB - OpenUCT DP - University of Cape Town KW - Choanal Atresia KW - Surgery KW - Surgical Correction LK - https://open.uct.ac.za PY - 2025 T1 - Choanal Atresia Surgery TI - Choanal Atresia Surgery UR - http://hdl.handle.net/11427/43589 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/43589
dc.identifier.vancouvercitationTan N, Jonas N. Choanal Atresia Surgery [OER]. ,Faculty of Health Sciences ,Division of Otorhinolaryngology, Division of Otorhinolaryngology; provided on lecture given 2026-07-16T12:01:58Z [cited yyyy month dd]. Available from http://hdl.handle.net/11427/43589en_ZA
dc.language.isoen
dc.publisher.departmentDivision of Otorhinolaryngology
dc.publisher.facultyFaculty of Health Sciences
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectChoanal Atresia
dc.subjectSurgery
dc.subjectSurgical Correction
dc.titleChoanal Atresia Surgery
dc.typeOpen Education Resource
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