Long-term follow-up of Bonebridge BCI 601 implantation in microtia patients with aural atresia: Acoustic and subjective benefits.

Autor:	Yeh KT; Department of Medical Education, Chang Gung Memorial Hospital, Linkou, Taiwan, ROC., Ho VW; Division of Head and Neck, Plastic and Reconstructive Surgery, Department of Surgery, Queen Mary Hospital, Hong Kong, China., Chen TY; Division of Otology, Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan, ROC., Tu JC; Division of Craniofacial Surgery, Department of Plastic and Reconstructive Surgery, Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan, ROC., Lin HY; Division of Otology, Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan, ROC., Chan KC; Division of Otology, Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan, ROC.; School of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC.
Jazyk:	angličtina
Zdroj:	Journal of the Chinese Medical Association : JCMA [J Chin Med Assoc] 2024 Dec 01; Vol. 87 (12), pp. 1090-1097. Date of Electronic Publication: 2024 Sep 10.
DOI:	10.1097/JCMA.0000000000001162
Abstrakt:	Background: This study evaluated the long-term acoustic and subjective outcomes of Bonebridge bone conduction implant (BCI) 601 implantation in Taiwanese patients with microtia and aural atresia (AA). Methods: A total of 41 microtia patients (28 males and 13 females; 26 with bilateral AA and 15 with unilateral AA) who received Bonebridge BCI 601 implantation between December 2014 and March 2021 at Chang Gung Memorial Hospital, Linkou, Taiwan, were included in this retrospective study. Acoustic outcomes assessed included functional hearing gain (FHG), speech reception threshold (SRT), and word recognition score (WRS), were assessed. Subjective outcomes were assessed using the Chinese versions of four questionnaires: the Abbreviated Profile of Hearing Aid Benefit (APHAB); the Speech, Spatial and Qualities of Hearing Scale; the International Outcome Inventory for Hearing Aids; and the Satisfaction with Amplification in Daily Living. Results: The mean age at the time of implantation was 18.9 years (range, 6.3-54.9), and the mean follow-up duration was 6.3 years (range, 2.8-9.1). The mean unaided air conduction pure tone average (PTA4) was 65.3 ± 8.8 decibels (dB) hearing level (HL) and the mean aided sound field PTA4 was 31.1 ± 9.1 dB HL, resulting in a FHG of 34.2 ± 11.7 dB HL ( p < 0.05). After Bonebridge implantation, improvements ( p < 0.05) in the mean SRT in quiet (from 58.3 ± 7.4 dB HL to 29.4 ± 7.0 dB HL), SRT in noise (from -1.4 ± 7.3 dB signal-to-noise ratio (SNR) to -9.6 ± 5.4 dB SNR), WRS in quiet (from 46.4 ± 26.9% to 93.8 ± 3.1%), and WRS in noise (from 46.7 ± 21.8% to 72.7 ± 19.3%) were found. Additionally, the bilateral AA group exhibited greater SRT and WRS improvements compared to the unilateral AA group ( p < 0.05). All mean subscale scores in the four questionnaires showed improvement after Bonebridge implantation, except for the mean aversiveness to sounds subscale score in the APHAB questionnaire. Conclusion: Bonebridge BCI 601 implantation provided long-term acoustic and subjective benefits for patients with microtia and AA, particularly those with bilateral AA. Competing Interests: Conflicts of interest: The authors declare that they have no conflicts of interest related to the subject matter or materials discussed in this article. (Copyright © 2024, the Chinese Medical Association.)
Databáze:	MEDLINE
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