Speech in Noise With Bilateral Active Bone Conduction Implant for Conductive and Mixed Hearing Loss

Canale, Andrea; Ndrev, Drita; Sapino, Silvia; Bianchi, Carlotta; Bordino, Valerio; Albera, Andrea

doi:10.1097/mao.0000000000003671

Cited by 10 publications

(10 citation statements)

References 21 publications

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“…The main aim of the present study was to investigate the role of BC HA fitting in unilateral pseudo-conductive hearing loss. While bilateral bone-anchored devices may provide additional benefits over unilateral fitting [Janssen et al, 2012;Canale et al, 2022], the notion that UCHL, as simulated in this study, should always be amplified with a BC device remains questionable [Alexander et al, 2020;Hirth et al, 2021].…”

Section: Discussionmentioning

confidence: 86%

Binaural Hearing Using the ADHEAR Bone Conduction System in the Monaurally Occluded Ear

et al. 2023

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Introduction: The study aimed to investigate binaural cues in the rehabilitation of unilateral occluded ears with a bone conduction hearing aid. Methods: The study sample consisted of 40 adult volunteers with normal hearing. Unilateral pseudo-conductive hearing loss was induced by inserting an earplug into the external auditory canal (EAC) and silicone material in the concha for ear impression. The adaptive speech-in-noise test (Italian Matrix test) was performed in three spatial orientations to assess binaural cues (summation, squelch, and head shadow effects). All evaluations were performed in the normal condition, after EAC occlusion, and after application of an adhesive bone conduction hearing aid. Binaural contrast differences were calculated in the three conditions. Results: In the EAC occlusion condition, there was a significant increase in the signal-to-noise ratio (SNR) in both the S0N0 (2.4 dB) and the S90N−90 (7.7 dB) settings, and a slight albeit significant increase in the S0N90 setting (1.35 dB). After fitting the BC hearing aid, there was a reduction of −1.8 dB SNR (p < 0.001) in the S0N0 setting and −2 dB (p = 0.003) in the S90N−90 setting. There was no improvement in the SNR (p = 0.405) in evaluation of the squelch effect (S0N90). These data were corroborated by a better binaural contrast due to a reduction in the summation effect in the monaural occlusion condition and a subsequent reduction in binaural contrast after fitting the hearing aid due to an increase in the summation effect (−2.5 dB vs. 0.3 dB; p < 0.001). Conclusions: Application of a bone conduction hearing aid in unilateral pseudo-conductive hearing loss strengthens speech recognition of noise by improving the summation effect and impeding the shadow effect of the head; however, there appears to be no improvement in speech perception in noise due to spatial release from masking.

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Section: Discussionmentioning

confidence: 86%

Binaural Hearing Using the ADHEAR Bone Conduction System in the Monaurally Occluded Ear

et al. 2023

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“…Recent studies reported speech perception advantages in the binaural fitting of BC devices in bilateral conductive hearing loss 6 , 7 . In particular, some previous works in children showed that, due to the binaural unmasking, the bilateral application of a percutaneous BC implant in symmetric bilateral conductive hearing loss results in better sound localisation and speech perception under noise conditions 8 , 9 .…”

Section: Introductionmentioning

confidence: 99%

Binaural hearing in monaural conductive or mixed hearing loss fitted with unilateral Bonebridge

Canale,

Urbanelli,

Albera

et al. 2024

Acta Otorhinolaryngol Ital

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SUMMARY Objective To determine the benefits of binaural hearing rehabilitation in patients with monaural conductive or mixed hearing loss treated with a unilateral bone conduction implant (BCI). Methods This monocentric study includes 7 patients with monaural conductive or mixed hearing loss who underwent surgical implantation of a unilateral BCI (Bonebridge, Med-El). An ITA Matrix test was performed by each patient included in the study - without and with the BCI and in three different settings – to determine the summation effect, squelch effect and head shadow effect. Subjective hearing benefits were assessed using the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire. Results The difference in signal to noise ratio of patients without and with BCI was 0.79 dB in the summation setting (p < 0.05), 4.62 dB in the head shadow setting (p < 0.05) and 1.53 dB (p = 0.063) in the squelch setting. The APHAB questionnaire revealed a subjective discomfort in the presence of unexpected sounds in patients using a unilateral BCI (aversiveness score) compared to the same environmental situations without BCI, with a mean discomfort score of 69.00% (SD ± 21.24%) with monaural BCI versus 25.67% (SD ± 16.70%) without BCI (difference: -43.33%, p < 0.05). In terms of global score, patients wearing a unilateral Bonebridge implant did not show any significant differences compared to those without hearing aid (difference: -4.00%, p = 0.310). Conclusions Our study shows that the use of a unilateral BCI in patients affected by monaural conductive or mixed hearing loss can improve speech perception under noise conditions due to the summation effect and to the decrease of the head shadow effect. However, since monaural BCIs might lead to discomfort under noise conditions in some subjects, a pre-operative assessment of the possible individual benefit of a monaural BCI should be carried out in patients affected by unilateral conductive or mixed hearing loss in order to investigate the possible additional effect of the fitting of hearing aids.

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“…Although in bilateral aural atresia hearing rehabilitation with bone conduction hearing aids is nowadays mandatory with a specific bilateral fitting 10 , in the latest years the necessity to rehabilitate a unilateral deficit has also emerged 11 . Indeed, unilateral hearing loss impacts sound localisation and speech perception in background noise, thus being a non-negligible factor in the hearing and speech evolution of the child 12-14 .…”

Section: Introductionmentioning

confidence: 99%

“…These multiple anomalies can have different clinical consequences, and in particular the hearing loss caused by the aural atresia can have an impact on the communication and learning skills during the development. Although in bilateral aural atresia hearing rehabilitation with bone conduction hearing aids is nowadays mandatory with a specific bilateral fitting 10 , in the latest years the necessity to rehabilitate a unilateral deficit has also emerged 11 . Indeed, unilateral hearing loss impacts sound localisation and speech perception in background noise, thus being a non-negligible factor in the hearing and speech evolution of the child [12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Benefits of bone conduction hearing aid in children with unilateral aural atresia

Brotto¹,

Sorrentino²,

Cazzador³

et al. 2023

Acta Otorhinolaryngol Ital

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SUMMARY Objective To assess the hearing benefit with a unilateral bone conduction hearing aid in a cohort of children with unilateral aural atresia. Methods Cross-sectional case series pilot study involving 7 children (median age: 10 years, range 6-11). All patients underwent pure-tone, speech, aided sound field and aided speech audiometry and Simplified Italian Matrix Test (SIMT) with and without bone conduction hearing aid (Baha 5 ® CochlearTM). Cognitive abilities were assessed in 5 patients. Results The mean air conduction pure-tone average (PTA) of the atretic ear was 63.2 ± 6.9 dB, while the bone conduction PTA was 12.6 ± 4.7 dB. Speech discrimination score of the atretic ear was 88.6 ± 3.8 dB, while with the hearing aid it was 52.8 ± 1.9 dB. In the contralateral ear, there was no significant air-bone gap, and PTAs for air and bone conduction thresholds were within normal range (PTA ≤ 25 dB). The mean aided air conduction hearing threshold was 26.2 ± 7.97. Mean speech recognition threshold without the hearing aid was -5.1 ± 1.9 dB, and -6.0 ± 1.7 dB with the hearing aid tested with the SIMT. The mean score of the cognitive test was 46.8 ± 42.8. Conclusions These preliminary findings should encourage clinicians in proposing a unilateral bone conduction hearing aid in children with unilateral atresia.

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Speech in Noise With Bilateral Active Bone Conduction Implant for Conductive and Mixed Hearing Loss

Abstract: Objective: To evaluate speech in noise results and subjective benefit in bilateral active bone conduction implant (ABCI) for bilateral mixed hearing loss.

Cited by 10 publications

References 21 publications

Binaural Hearing Using the ADHEAR Bone Conduction System in the Monaurally Occluded Ear

Binaural Hearing Using the ADHEAR Bone Conduction System in the Monaurally Occluded Ear

Binaural hearing in monaural conductive or mixed hearing loss fitted with unilateral Bonebridge

Benefits of bone conduction hearing aid in children with unilateral aural atresia

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