First experience in Italy with a new transcutaneous bone conduction implant

Area of Science:

• Otorhinolaryngology
• Biomedical Engineering
• Audiology

Background:

• Transcutaneous bone-anchored implants provide an alternative to traditional percutaneous systems for hearing loss.
• A novel transcutaneous device, utilizing a titanium fixture and circular magnets, has recently gained approval for clinical use.
• This study presents the initial anatomical and functional outcomes of this new transcutaneous device.

Observation:

• Three patients (two adults, one child) with conditions like syndromic aural atresia and bilateral conductive hearing loss received the transcutaneous Baha implant.
• No significant intraoperative or postoperative complications were noted.
• Patients tolerated the external magnet well, with no reported skin irritation.

Findings:

• Functional hearing assessments revealed a median unaided pure-tone average (PTA) of 50 dB HL, significantly improving to a median of 27 dB HL with the transcutaneous Baha.
• The median gain achieved with the device was 25 dB HL.
• Preliminary data indicate good anatomical and functional results, suggesting the device is a viable option.

Implications:

• The transcutaneous Baha implant demonstrates potential as a valuable alternative for patients with specific types of hearing loss.
• Gradual introduction of the device is recommended to promote skin adaptation and minimize potential irritation.
• Considerations for pediatric patients include skull curvature and potential skin tenting over the internal magnet.