Comparative effects of unilateral and bilateral bone conduction hearing devices on functional hearing and sound localization abilities in patients with bilateral microtia-atresia

Fan, Xinmiao; Yang, Tengyu; Niu, Xiaomin; Chen, Yu‐Shan; Xia, Xuejun; Gao, Ruzhen; Fan, Yue; Chen, Xiaowei

doi:10.1080/00016489.2020.1745883

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…Similar studies in congenital UCHL patients using a BAHA (39,40) showed very little sound localization benefit with the device. Fan et al investigated sound localization abilities in 32 atresia patients implanted with the tBCI in this study, with and without an additional adhesive bone conduction device on the contralateral ear, interestingly finding a statistically significant improvement in the bilateral condition (41).…”

Section: Speech Understanding In Noisementioning

confidence: 54%

Multicenter Results With an Active Transcutaneous Bone Conduction Implant in Patients With Single-sided Deafness

Huber

Strauchmann

Caversaccio

et al. 2021

Otology &Amp; Neurotology

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Objective: To evaluate the audiological and subjective benefit from hearing rehabilitation with an active bone conduction implant in subjects with single-sided sensorineural deafness (SSD). Study Design: Prospective, multicenter, single-subject repeated measures. Setting: Tertiary referral center, five clinics in Germany and Switzerland. Patients: Seventeen subjects aged 18 years and older with severe to profound unilateral sensorineural hearing loss and contralateral normal hearing were followed up for 24 months. Intervention: Active bone conduction implant. Main Outcome Measures: Speech understanding in noise was assessed in three situations: with signal from front, deaf, or normal hearing side (with noise from front in all set-ups). Subjective benefit was evaluated using the Speech, Spatial, and Qualities of Hearing (SSQ-B) and Bern Benefit in Single-Sided Deafness (BBSS) questionnaire.Results: When the signal was coming from the deaf side the mean improvement of the speech reception threshold in noise ranged from 1.5 up to 2.2 dB with the device and was statistically and clinically significant at all tested timepoints. No significant difference between the aided and unaided situation was found when signal and noise were coming from the front. With the signal from the normal hearing side no clinically significant difference, that is, greater than 1 dB between the aided and unaided situation was found. The SSQ-B and BBSS questionnaire showed an overall improvement with no significant difference between time points. Conclusions: The study demonstrates long-term efficacy and benefit of the device in adults with SSD. Patients reported substantial and persistent subjective benefit from the active bone conduction implant.

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Section: Speech Understanding In Noisementioning

confidence: 54%

Multicenter Results With an Active Transcutaneous Bone Conduction Implant in Patients With Single-sided Deafness

Huber

Strauchmann

Caversaccio

et al. 2021

Otology &Amp; Neurotology

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“…Other factors may also contribute to these differences. For instance, many of the studies using BC hearing aids in clinical patients involved patients with predominantly conductive hearing loss 25,26,[37][38][39] . These patients typically have minor sensorineural hearing loss, and their BC thresholds are often better than 20 dBHL.…”

Section: Discussionmentioning

confidence: 99%

Evaluating binaural hearing capabilities in individuals with sensorineural hearing loss through bilateral bone conduction stimulation

Stenfelt,

Zeitooni,

Mäki-Torkko

2023

Preprint

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This study investigated the impact of bilateral bone conduction (BC) stimulation and sensorineural hearing loss on spatial release from masking, binaural intelligibility level difference, and lateralization. The study involved two groups of adults with mild to moderate sensorineural hearing loss: one group of 21 participants with symmetric hearing loss and another group of nine participants with asymmetric hearing loss. All tests were conducted through BC and air conduction (AC) headsets with non-individualized virtual positions of the sound sources and linear amplification based on individual hearing thresholds. The findings revealed a bilateral benefit for both groups of hearing-impaired individuals, with symmetric hearing loss yielding better results than asymmetric hearing loss. AC stimulation provided approximately twice the benefit in terms of dB compared to BC stimulation. A large part of this benefit originated from a favorable signal-to-noise ratio due to noise reduction from the head shadow. However, binaural processing was present in both hearing-impaired groups with bilateral BC stimulation. The ability to lateralize sounds based on interaural time delays was significantly impaired in participants with both types of hearing loss when stimulation was by BC. Despite these challenges, the study underscores the benefits of bilateral fitting of BC hearing aids, even in individuals with mild to moderate sensorineural hearing loss, whether symmetric or asymmetric.

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“…Fan et al (2020) [25] compared the effects of one BCD (BB) and bilateral BCDs (BB plus contralateral ADHEAR) on sound localization abilities in patients with bilateral microtia-atresia. The results showed that the response accuracy was significantly better with bilateral BCDs (22%) than with unilateral BCDs (16%).…”

Section: Patients With Bilateral Chlmentioning

confidence: 99%

Sound Localization and Lateralization by Bilateral Bone Conduction Devices, Middle Ear Implants, and Cartilage Conduction Hearing Aids

Shiraishi

2021

Audiology Research

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Sound localization in daily life is one of the important functions of binaural hearing. Bilateral bone conduction devices (BCDs), middle ear implants, and cartilage conduction hearing aids have been often applied for patients with conductive hearing loss (CHL) or mixed hearing loss, for example, resulting from bilateral microtia and aural atresia. In this review, factors affecting the accuracy of sound localization with bilateral BCDs, middle ear implants, and cartilage conduction hearing aids were classified into four categories: (1) types of device, (2) experimental conditions, (3) participants, and (4) pathways from the stimulus sound to both cochleae. Recent studies within the past 10 years on sound localization and lateralization by BCDs, middle ear implants, and cartilage conduction hearing aids were discussed. Most studies showed benefits for sound localization or lateralization with bilateral devices. However, the judgment accuracy was generally lower than that for normal hearing, and the localization errors tended to be larger than for normal hearing. Moreover, it should be noted that the degree of accuracy in sound localization by bilateral BCDs varied considerably among patients. Further research on sound localization is necessary to analyze the complicated mechanism of bone conduction, including suprathreshold air conduction with bilateral devices.

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Comparative effects of unilateral and bilateral bone conduction hearing devices on functional hearing and sound localization abilities in patients with bilateral microtia-atresia

Cited by 8 publications

References 18 publications

Multicenter Results With an Active Transcutaneous Bone Conduction Implant in Patients With Single-sided Deafness

Multicenter Results With an Active Transcutaneous Bone Conduction Implant in Patients With Single-sided Deafness

Evaluating binaural hearing capabilities in individuals with sensorineural hearing loss through bilateral bone conduction stimulation

Sound Localization and Lateralization by Bilateral Bone Conduction Devices, Middle Ear Implants, and Cartilage Conduction Hearing Aids

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