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Instant Auditory Benefit of an Adhesive BCHD on Children with Bilateral Congenital Microtia
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  • Liu-Jie Ren,
  • Ya-Shan Duan,
  • Jin-Chao Yu,
  • You-zhou Xie,
  • Tian-yu Zhang
Liu-Jie Ren
ENT institute and Department of FPRS
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Ya-Shan Duan
ENT institute and Department of FPRS
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Jin-Chao Yu
Eye & ENT Hospital, Fudan University
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You-zhou Xie
ENT institute, Eye & ENT Hospital of Fudan University
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Tian-yu Zhang
Eye & ENT hospital of fudan university
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Abstract

Purposes: To evaluate the instant auditory benefit of an adhesive bone conduction hearing aid (ADHEAR) on children with bilateral congenital microtia, especially the sound localization ability under unilateral and bilateral fitting. Methods: Twelve patients with bilateral congenital microtia aged from 6 to 17 were included in this study. Pure tone threshold under sound field, speech recognition threshold in quiet and sound localization abilities were tested and compared before and after wearing the device. The pure tone threshold test was additionally repeated for two different wearing method – adhesive or fixed with softband; the sound localization test was repeated for both unilateral and bilateral fitting. Correlation analysis was then conducted to find the influencing factors of sound localization improvement. Results: Significant auditory improvement were found: the average pure tone threshold (PTA) reduced by 24.8 (adhesive) and 27.3 dB HL (softband), with no significant difference between the two wearing methods. The speech recognition threshold also improved by 29.0 dB. As for sound localization abilities, no significant improvement was found under unilateral fitting; but half (6 of 12) of the patients were notably benefited from bilateral fitting. The improvement was found to be strong correlated with the patients’ unaided sound localization ability – those with poorer localization abilities tends to benefit more. Moreover, it was found that the sound localization improvement was also negatively related with the malformation degrees of the patients’ head. Summary: ADHEAR affords significant auditory benefits for children with bilateral congenital microtia, in terms of sound and speech perception. The sound localization abilities could be partly improved instantly by bilateral fitting, and the improvement is related with factors such as adaption and skull malformations.

Peer review status:IN REVISION

10 Aug 2020Submitted to Clinical Otolaryngology
13 Aug 2020Submission Checks Completed
13 Aug 2020Assigned to Editor
16 Aug 2020Editorial Decision: Revise Minor
19 Aug 20201st Revision Received
20 Aug 2020Submission Checks Completed
20 Aug 2020Assigned to Editor
29 Aug 2020Reviewer(s) Assigned
22 Sep 2020Review(s) Completed, Editorial Evaluation Pending
27 Sep 2020Editorial Decision: Revise Major