Unilateral and Bilateral Audiological Benefit With an Adhesively Attached, Noninvasive Bone Conduction Hearing System.

Gawliczek, Tom; Munzinger, Fabio; Anschütz, Lukas Peter; Caversaccio, Marco; Kompis, Martin; Wimmer, Wilhelm (2018). Unilateral and Bilateral Audiological Benefit With an Adhesively Attached, Noninvasive Bone Conduction Hearing System. Otology & neurotology, 39(8), pp. 1025-1030. Lippincott Williams & Wilkins 10.1097/MAO.0000000000001924

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OBJECTIVE To assess the audiological benefit of a noninvasive, adhesively attached bone conduction device (BCD1) in subjects with induced bilateral conductive hearing loss. Secondary objectives were to evaluate the additional benefit of bilateral fitting compared with unilateral fitting and to compare the outcomes with bone conduction devices attached to a softband (BCD2). STUDY DESIGN Prospective nonrandomized crossover study. SETTING Tertiary referral center. PATIENTS Fifteen subjects with induced bilateral conductive hearing loss. MAIN OUTCOME MEASURES Sound field thresholds, speech understanding in quiet and in multinoise were assessed in unaided, unilateral, and bilateral treatment conditions. In addition, sound localization was evaluated in uni- and bilateral treatment conditions. RESULTS The outcomes of BCD1 and BCD2 were comparable. Sound field thresholds improved by 24.6 dB (BCD1) and 24.8 dB (BCD2) in the unilateral and 26.8 dB (BCD1) and 25.1 dB (BCD2) in the bilateral treatment condition. Speech reception thresholds (SRTs) in quiet improved by 20.0 dB (BCD1) and 21.7 dB (BCD2) in the unilateral and by 22.7 dB (BCD1) and 21.5 dB (BCD2) in the bilateral condition. If speech was presented from the front, SRTs in noise were improved by 3.6 dB and 4.2 dB (unilateral) and by 4.5 dB and 4.4 dB (bilateral) for BCD1 and BCD2, respectively. With speech presented from the unilateral side, SRTs were improved by 4.0 dB and 4.7 dB (unilateral) and 3.8 dB and 4.8 dB (bilateral) compared with the unaided situation. If noise was presented from the contralateral side, small differences (-0.6 dB and -0.1 dB) were observed. Bilateral fitting brought additional benefits for speech understanding in noise and sound localization. CONCLUSIONS Both bone conduction devices seem to be a valid treatment for patients with conductive hearing loss and minor sensorineural hearing loss component.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Image Guided Therapy > ARTORG Center - Artificial Hearing Research

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Gawliczek, Tom; Anschütz, Lukas Peter; Caversaccio, Marco; Kompis, Martin and Wimmer, Wilhelm


600 Technology > 610 Medicine & health
500 Science > 570 Life sciences; biology




Lippincott Williams & Wilkins




Wilhelm Wimmer

Date Deposited:

20 Jul 2018 12:39

Last Modified:

18 Aug 2018 01:32

Publisher DOI:


PubMed ID:






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