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Updated: Jul 1, 2026
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Modifications of standard cochlear implantation techniques for children under 18 months of age
Joseph B Roberson1, Larisa D Kunda, Katrina R Stidham
1California Ear Institute, Palo Alto, CA, USA.
Insights
Cochlear implantation in infants under 18 months often requires modified surgical techniques due to anatomical challenges. These modifications ensure safe and effective implantation for very young children receiving cochlear implants.
Area of Science:
- Otolaryngology
- Pediatric Surgery
- Audiology
Background:
- Cochlear implantation is increasingly performed in younger pediatric populations.
- Surgical approaches may need adaptation for infants and toddlers.
Purpose of the Study:
- To evaluate surgical techniques and challenges in cochlear implantation for children under 18 months.
- To identify common intraoperative findings and modifications in this age group.
Main Methods:
- Retrospective cohort study of 19 patients (23 ears) implanted before 18 months of age.
- Analysis of surgical records, including anatomical variations and procedural modifications.
Main Results:
- Mean age at implantation was 11.9 months; youngest was 6.8 months.
- Narrow facial recess noted in 39% of ears, particularly premature infants.
- Stapedius tendon sectioning (30%), dural exposure for receiver-stimulator (96%), and suture fixation (65%) were common.
- Tympanostomy tubes placed in 43% of cases.
Conclusions:
- Cochlear implantation in very young children necessitates modified surgical techniques.
- Anatomical variations and specific procedural adaptations are frequently required.
Abstract:
Cochlear implantation is being performed in increasingly younger children. We present a retrospective cohort of 19 patients with 23 ears implanted under 18 months of age. The mean age at implantation was 11.9 months, with the youngest being 6.8 months. The facial recess was narrow in nine ears (39%), including all premature infants. An inferiorly located stapedius tendon was sectioned in seven ears (30%) to facilitate round window access. Countersinking of the receiver-stimulator required dural exposure in 22 ears (96%). The receiver-stimulator was secured with sutures in 15 ears (65%) and within a tight pocket in eight ears (35%). Tympanostomy tubes were placed in 10 ears (43%). Cochlear implantation in very young children frequently necessitates modified surgical techniques.