![]() Up to 1%–3% of the cases occur concurrently with craniofacial syndromes. The incidence of CAA is 1 in 10,000–15,000 births. Available from: Ĭongenital aural atresia (CAA) is an abnormality of the external ear characterized by hypoplasia or aplasia of the external auditory canal (EAC). Ann Indian Acad Otorhinolaryngol Head Neck Surg 2019 3:8-12. Atresioplasty for congenital aural atresia: A not so gloomy outlook. How to cite this URL: Panda NK, Damodaran N, Nayak G, Verma RK. Ann Indian Acad Otorhinolaryngol Head Neck Surg 2019 3:8-12 How to cite this article: Panda NK, Damodaran N, Nayak G, Verma RK. Keywords: Aural atresia, hearing outcomes, surgery Bone-anchored hearing devices can be advised if the surgery is not feasible, particularly in high-grade atresia and unfavorable radiology. Conclusions: Patients with CAA of moderate grade favorable radiological findings may benefit with surgery for better hearing outcomes. Only 8 patients did not have any hearing improvement. Five patients had air-bone closure of 15–25 dB. A postoperative air-bone closure of >25 dB was achieved in 15 out of 28 patients. Results: Twenty-eight patients underwent surgery after exclusion of three patients due to diploic mastoids. Postoperatively, the patients were evaluated for hearing improvement and any sequelae of surgery at varying period up to 3 months. A combined anterior and posterior approach was employed in all the cases. Materials and Methods: A retrospective analysis of 31 cases of CAA operated during 2002–2018 in a tertiary referral center was performed. This report presents the authors' experience of surgical treatment of aural atresia. Many surgeons hesitate to undertake the repair due to inadequate hearing outcome and probability of stenosis of the new canal. Surgery of aural atresia is not only challenging but also has not been accepted by the surgeons. The ossicles often need to be mobilized.Introduction: Congenital aural atresia (CAA) is an abnormality of the external ear along with hypoplasia or aplasia of the external auditory canal. ![]() Surgical reconstruction requires formation of a new EAC and new tympanic membrane (usually with temporalis fascia). ![]() course of facial nerve: often abnormally anterior and can be damaged during reconstruction.course of internal carotid artery, and location of the jugular bulb: if abnormal can be hazardous during surgery.both the oval and round window need to be present for successful surgery.stapes: important to note as an abnormal or absent stapes needs to be replaced with a prosthetic.malleus: usually has a rudimentary handle (as there is no normal tympanic membrane).middle ear cavity volume: a width of greater than 3 mm is usually needed for successful surgery.High resolution bony CT reformats is the modality of choice for assessing the external acoustic canal. A number or key points should be looked for and specifically mentioned in reports as it impacts on surgical reconstruction. AssociationsĪlthough frequently isolated (in which case the abnormality is less severe and isolated to the EAC) a number of syndromes are associated with external auditory canal atresia 2: The inner ear and inner auditory canal are typically normal (due to forming earlier in gestation).ĮAC atresia may be complicated by congenital cholesteatoma formation behind the atresia plate or in the middle ear. Pathologyīilateral involvement is seen in approximately one-third of patients 2. The external auditory canal may be completely absent or incompletely atretic with further narrowing contributed to by soft tissue bands.įindings in the middle ear are variable. Clinical presentationĪbnormal appearance of the external ear and conductive hearing loss present from birth. ![]()
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