Congenital aural atresia: hearing rehabilitation using active middle-ear implants

Area of Science:

• Otolaryngology
• Biomedical Engineering
• Audiology

Background:

• Congenital aural atresia presents significant hearing loss challenges.
• Traditional hearing aids may be insufficient for certain types of hearing loss.
• Active middle-ear implants offer an alternative for hearing rehabilitation.

Purpose of the Study:

• To evaluate the efficacy of the Vibrant Soundbridge active middle-ear implant for hearing rehabilitation in patients with congenital aural atresia.
• To assess audiological outcomes and patient satisfaction following implantation.
• To analyze surgical outcomes related to coupling sites.

Main Methods:

• A cohort study of 10 patients (12 ears) with microtia and atresia who received Vibrant Soundbridge implantation between 2008 and 2021.
• Pre- and post-operative audiometry data were analyzed.
• Patient satisfaction and surgical outcomes were evaluated.

Main Results:

• Significant improvement in pure tone average (PTA) from 65.3 dB HL to 26.8 dB HL, a mean gain of 38.5 dB HL.
• No significant difference in outcomes between stapes and incus coupling sites.
• High patient satisfaction reported, with improvements in sound quality and directional hearing.

Conclusions:

• The Vibrant Soundbridge is a viable option for hearing rehabilitation in selected patients with atresia.
• The implant provides stable, long-term hearing improvements in pediatric and adult populations.
• Active middle-ear implantation offers a successful solution for hearing loss due to congenital aural atresia.