alexa Transcutaneous bone-conduction hearing device: audiological and surgical aspects in a first series of patients with mixed hearing loss.


Biochemistry & Physiology: Open Access

Author(s): Barbara M, Perotti M, Gioia B, Volpini L, Monini S

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Abstract CONCLUSIONS: The Bonebridge(®) (BB) transcutaneous bone conductive implant (BCI) may overcome some of the issues related to a percutaneous BCI, such as management of the external screw, delayed activation or possible skin complications. Moreover, it has been shown to enable a functional outcome similar to percutaneous BCI in both conductive and mixed types of hearing loss. OBJECTIVES: To obtain clinical data from a preliminary series of patients implanted with a new transcutaneous BCI. METHODS: Four subjects affected by conductive/mixed hearing loss underwent implantation of the BB by two approaches: the transmastoid, presigmoid approach and the retrosigmoid approach. Soundfield thresholds were assessed with warble tones in a soundproof audiometric booth, and word recognition scores (WRSs) as speech reception thresholds (SRTs) were used to compare the unaided versus the post-implantation condition. RESULTS: The surgical procedure was completed in all cases, with only minor intraoperative divergence from the CT-based planning and no postoperative complications. The average improvement of the SRT in quiet with the BB in comparison to the unaided condition was 36.25 dB. All the implanted subjects reached SRT values below 65 dB, indicating a better understanding in quiet, with 100\% word recognition. This article was published in Acta Otolaryngol and referenced in Biochemistry & Physiology: Open Access

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