In:
Otology & Neurotology, Ovid Technologies (Wolters Kluwer Health), Vol. 40, No. 5S ( 2019-06), p. S43-S50
Abstract:
To evaluate short- and long-term hearing results of surgery for acquired atresia of the external auditory canal (EAC) in a large patient cohort and to define preoperative audiometric conditions useful for patient counseling. Study Design: Retrospective cohort study. Setting: Academic tertiary referral center. Patients: Seventy-eight ears from 72 patients with postinflammatory acquired atresia of the EAC who underwent canal- and meatoplasty were included. Patients with involvement of the ossicular chain, (syndromic) external ear malformations, or congenital aural atresia were excluded. Intervention: Canal- and meatoplasty. Main Outcome Measures: Mean pure-tone averages of thresholds at 0.5, 1, 2, and 3 kHz (PTA 0.5,1,2,3 ) for air conduction (AC), bone conduction, and air-bone gap (ABG) were calculated preoperatively and at short-term (≤0.55 yr) and long-term follow-up ( 〉 0.55 yr). Additionally, the numbers of ears with a closed ABG ≤10 dB and ≤20 dB, and with Social hearing (defined as: AC PTA 0.5,1,2,3 ≤35 dB) were assessed. Results: At short-term follow-up AC PTA 0.5,1,2,3 improved by 18 dB. Social hearing was obtained in 81% of the ears. Postoperatively, 35% of the ears had a closed ABG ≤10 dB, 83% was closed ≤20 dB. During follow-up, significant deterioration of 5 to 7 dB occurred for AC thresholds at 0.25, 0.5, and 1 kHz. Conclusions: Surgery for acquired atresia of the EAC is often beneficial. This study suggests overall advantageous surgery when the preoperative indication criteria ABG PTA 0.5,1,2,3 〉 20 dB and AC PTA 0.5,1,2,3 〉 35 dB are applied.
Type of Medium:
Online Resource
ISSN:
1531-7129
,
1537-4505
DOI:
10.1097/MAO.0000000000002209
Language:
English
Publisher:
Ovid Technologies (Wolters Kluwer Health)
Publication Date:
2019
detail.hit.zdb_id:
2058738-7
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