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Simultaneous bilateral transcutaneous bone conduction device implantation: sound localisation and speech perception in children with bilateral conductive hearing loss

Published online by Cambridge University Press:  13 October 2021

P Chen
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
L Yang
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
J Yang
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
D Wang
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
Y Li
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
C Zhao
Affiliation:
Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
Y Liu
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
M Gao
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
J Zhu
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
S Li
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
S Zhao*
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China Ministry of Education, Key Laboratory of Otolaryngology Head and Neck Surgery, Beijing, China
*
Author for correspondence: Prof S Zhao, Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, No.1 Dongjiaomin Lane, Dongcheng District, Beijing 100730, China E-mail: shouqinzhao@163.com

Abstract

Objective

This study investigated the audiometric and sound localisation results in patients with conductive hearing loss after bilateral Bonebridge implantation.

Method

Eight patients with congenital microtia and atresia supplied with bilateral Bonebridge devices were enrolled in this study. Hearing tests and sound localisation were tested under unaided, unilateral and bilateral aided conditions.

Results

Mean functional gain was higher with a bilateral fitting than with a unilateral fitting, especially at 1.0–4.0 kHz (p < 0.05, both). The improvement in speech reception threshold in noise with a bilateral fitting was a 2.3 dB higher signal-to-noise ratio compared with unilateral fitting (p < 0.05). Bilateral fitting had better sound localisation than unilateral fitting (p <0.001). Four participants who attended follow up showed improved sound localisation ability after one year.

Conclusion

Patients demonstrated better hearing threshold, speech reception thresholds in noise and directional hearing with bilateral Bonebridge devices than with a unilateral Bonebridge device. Sound localisation ability with bilateral Bonebridge devices can be improved through long-term training.

Information

Type
Main Article
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of J.L.O. (1984) LIMITED

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