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Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
Published on: December 20, 2024
Safety and Outcome of Piezoelectric Active Transcutaneous Bone Conduction Implants for Children Younger Than 5 Years:
Faisal Zawawi1, Afnan F Bukhari, Eulaf Alaadah
1Cochlear Implants & Hearing Aids Unit, Department of Otolaryngology-Head and Neck Surgery, King Abdulaziz University, Jeddah, Saudi Arabia.
Insights
Active transcutaneous piezoelectric bone conduction implants safely improved hearing in young children with congenital hearing loss. These implants provided significant, stable auditory function gains, making them a viable option for pediatric hearing restoration.
Area of Science:
- Otolaryngology
- Pediatric Audiology
- Biomedical Engineering
Background:
- Young children with congenital hearing loss often require advanced auditory interventions.
- Active transcutaneous bone conduction implants offer a potential solution for hearing restoration in this population.
Purpose of the Study:
- To evaluate the auditory outcomes in children under 5 years old who received piezoelectric active transcutaneous bone conduction implants (OSI).
- To assess the safety and efficacy of OSI in improving hearing function in pediatric patients.
Main Methods:
- Prospective cohort study at a single tertiary referral academic center.
- Fourteen children under 5 years received OSI, with a minimum 1-year follow-up.
- Auditory outcomes, surgical details, complications, and device usage were systematically collected and analyzed.
Main Results:
- Fifteen implants were for congenital conductive hearing loss (cCHL) and three for single-sided deafness (SSD).
- Significant hearing improvement was observed in cCHL patients (median 45 dB pure-tone average gain).
- All patients demonstrated regular device use (median 10.6 h/day) with no decline in auditory performance over a median follow-up of 2.36 years.
Conclusions:
- Piezoelectric active transcutaneous bone conduction implants are a safe and effective option for young children.
- OSI provides significant and sustained improvements in auditory function for pediatric hearing loss.
Objective:
This study aimed to examine auditory outcomes in young children implanted with active bone conduction implants.
Study Design:
Prospective cohort study.
Setting:
A single tertiary referral academic center.
Patients:
Fourteen patients younger than 5 years of age who were implant with a piezoelectric active transcutaneous bone conduction implant (OSI) with a follow-up of at least 1 year.
Interventions:
Demographics, surgical techniques, duration of surgery, hospital stay, auditory outcomes, postoperative complications, and device use were collected. After OSI surgery, patients were followed up for 1 week post-surgery, with devices switched on at 3 weeks postoperatively. Surgery and audiology follow-up occurred at 1, 3, 6 months, and 1 year.
Main Outcome Measures:
Perioperative course, surgical complications, aided audiograms, and speech discrimination scores were obtained 6 months and 1 year after implantation.
Results:
Fourteen children received 18 implants (4 patients received bilateral simultaneous implants). The median implantation age in this study was 4.07 years (IQR=0.875). The indication for implantation was congenital conductive hearing loss (cCHL) due to external auditory canal atresia in 15/18 ears, and congenital single-sided deafness (SSD) in 3/18 ears. No patients experienced serious intraoperative or postoperative complications. For patients with cCHL, there was a significant postoperative improvement in hearing, marked by a median pure-tone average gain of 45 dB. All 14 patients regularly used their sound processors, with a median utility time of 10.6 h/day. There was no decline in the auditory performance in any ear throughout the median follow-up period of 2.36 years.
Conclusions:
Active transcutaneous piezoelectric bone conduction implants are a safe option for young children and provided significant and stable improvements in auditory function.
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