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[Electrophysiologic and other objective tests in pediatric cochlear implantation]
P Bordure1, G M O'Donoghue, S Mason
1Service d'Oto-Rhino-Laryngologie, Hôtel-Dieu, CHRU BP 1005, Nantes.
Summary
Electrically-Evoked Auditory Brainstem Responses (EABR) and other electrophysiological tests aid in pediatric cochlear implant surgery. These methods assess device function and predict patient outcomes, ensuring optimal hearing restoration.
Area of Science:
- Oto-neurology
- Biomedical Engineering
- Audiology
Context:
- Pediatric cochlear implantation requires precise electrophysiological monitoring.
- Pre- and post-operative assessments are crucial for successful outcomes.
- Evaluating auditory nerve and device function is essential.
Purpose:
- To outline the utility of various electrophysiological procedures in pediatric cochlear implant patients.
- To detail methods for ear selection, intraoperative monitoring, and device assessment.
- To establish the correlation between objective electrophysiological measures and behavioral outcomes.
Summary:
- Electrically-Evoked Auditory Brainstem Responses (EABR) via needle electrode assist in pre-operative ear selection.
- Intraoperative Electrically-Evoked Stapedius Reflex thresholds guide initial device programming.
- Post-implantation, Averaged Electrode Voltages (AEV) and EABR confirm device integrity and localize electrode issues.
Impact:
- Provides objective measures to guide cochlear implant surgery and device management in children.
- Enhances the predictability of post-implantation hearing outcomes.
- Facilitates troubleshooting of device malfunctions, optimizing auditory rehabilitation.