[Early experiences with the Advanced Bionics cochlear implant]

Area of Science:

• Otorhinolaryngology
• Neurosurgery
• Audiology

Background:

• Cochlear implantation is a key treatment for sensorineural hearing loss.
• The University of Szeged's Department of Otorhinolaryngology has performed cochlear implantations since 1995.
• Current rehabilitation at the clinic utilizes devices from Cochlear Ltd. and MED-EL GmbH.

Purpose of the Study:

• To introduce and evaluate the Advanced Bionics HiRes Ultra 3D cochlear implant at the University of Szeged.
• To expand the range of available cochlear implant devices for patients.
• To assess the initial surgical and electrophysiological outcomes of this new implant.

Main Methods:

• A HiRes Ultra 3D implant from Advanced Bionics was surgically implanted.
• Intraoperative electrophysiological measurements included electrically evoked stapedius reflex threshold (ESRT), neural response telemetry (NRT), and impedance.
• Active Insertion Monitoring system was used for data recording.
• Post-operative fluoroscopic imaging confirmed electrode placement.

Main Results:

• Adequate impedance thresholds were achieved during surgery.
• Electrically evoked stapedius reflex and neural response telemetry indicated successful neural stimulation.
• Low-dose fluoroscopic imaging confirmed correct electrode positioning within the cochlea.

Conclusions:

• The Advanced Bionics HiRes Ultra 3D implant is suitable for treating sensorineural hearing loss.
• The implant facilitates residual hearing preservation.
• Surgical technique and device construction are comparable to other leading cochlear implant manufacturers.