Bone conduction hearing sensitivity in normal-hearing subjects: Transcutaneous stimulation at BAHA vs BCI position

Reinfeldt, Sabine; Hȧkansson, Bo; Taghavi, Hamidreza; Eeg-Olofsson, Måns

doi:10.3109/14992027.2014.880813

Cited by 34 publications

(19 citation statements)

References 26 publications

(18 reference statements)

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“…The audiometric results of the first patient at the 1-month follow-up are published by Eeg-Olofsson et al 49 and the first six patients’ 6-month follow-up by Reinfeldt et al 50 Before the clinical study, preclinical studies were performed on cadavers, 51 – 54 dry skulls, 55 animals, 56 , 57 and normal-hearing subjects. 58 In the important preclinical studies on the cadavers, 51 , 52 where it was first concluded that an active transcutaneous BCD could be a realistic alternative to a percutaneous system, the sound processor and induction link from the Vibrant Soundbridge (the study was supported by MED-EL) was used to drive a BEST transducer. One important finding in these investigations was that MPO in the transcutaneous solution was considered high enough compared with a percutaneous BAHA solution, which most likely triggered the work to develop complete active transcutaneous systems like the BCI and the Bonebridge™ systems.…”

Section: Bone-conduction Devicesmentioning

confidence: 99%

New developments in bone-conduction hearing implants: a review

Reinfeldt¹,

Hȧkansson²,

Taghavi³

et al. 2015

MDER

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164

160

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The different kinds of bone-conduction devices (BCDs) available for hearing rehabilitation are growing. In this paper, all BCDs currently available or in clinical trials will be described in categories according to their principles. BCDs that vibrate the bone via the skin are referred to as skin-drive devices, and are divided into conventional devices, which are attached with softbands, for example, and passive transcutaneous devices, which have implanted magnets. BCDs that directly stimulate the bone are referred to as direct-drive devices, and are further divided into percutaneous and active transcutaneous devices; the latter have implanted transducers directly stimulating the bone under intact skin. The percutaneous direct-drive device is known as a bone-anchored hearing aid, which is the BCD that has the largest part of the market today. Because of some issues associated with the percutaneous implant, and to some extent because of esthetics, more transcutaneous solutions with intact skin are being developed today, both in the skin-drive and in the direct-drive category. Challenges in developing transcutaneous BCDs are mostly to do with power, attachment, invasiveness, and magnetic resonance imaging compatibility. In the future, the authors assume that the existing percutaneous direct-drive BCD will be retained as an important rehabilitation alternative, while the transcutaneous solutions will increase their part of the market, especially for patients with bone-conduction thresholds better than 35 dB HL (hearing level). Furthermore, the active transcutaneous direct-drive BCDs appear to be the most promising systems, but to establish more detailed inclusion criteria, and potential benefits and drawbacks, more extensive clinical studies are needed.

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Section: Bone-conduction Devicesmentioning

confidence: 99%

New developments in bone-conduction hearing implants: a review

Reinfeldt¹,

Hȧkansson²,

Taghavi³

et al. 2015

MDER

Self Cite

164

160

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“…In general 5‐ to 15‐dB improvement in cochlear sensitivity at frequencies above 1 kHz can be expected when a BC transducer is attached directly to the skull . Generally, the closer the stimulation position is to the cochlea, the greater the stimulation of the cochlea and the hearing thresholds …”

mentioning

confidence: 99%

The Bonebridge Bone Conduction Hearing Implant: indication criteria, surgery and a systematic review of the literature

Sprinzl

Wolf‐Magele

2016

Clinical Otolaryngology

130

109

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The transcutaneous BCI system Bonebridge provides a valuable and stable audiological benefit to patients suffering from conductive or mixed hearing loss and SSD. With its active transcutaneous design, the Bonebridge offers a lower complication rate to percutaneous systems and higher and more reliable hearing gain compared to other transcutaneous or percutaneous systems. Moreover, the fast activation of the implant system enables the recipient of the system to benefit in a short time frame postoperatively from the intervention.

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“…For the BCI, the skin and subcutaneous tissues are kept intact and no screw attachment to the skull bone is needed. Moreover, the BCI transducer is implanted closer to the cochlea than a BAHA, which increases the ipsilateral sensitivity to bone-conducted sound (Håkansson et al, 2008(Håkansson et al, , 2010Stenfelt et al, 2000;Stenfelt & Goode, 2005b;Eeg-Olofsson et al, 2008;Reinfeldt et al, 2014).…”

Section: The Bone Conduction Implantmentioning

confidence: 99%