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Updated: Apr 18, 2026
Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
Published on: October 11, 2024
Preserved low-frequency hearing following 20-mm cochlear implantation
Kevin D Brown1, Myles F Melton, Hannah Shonfield
1*Department of Otolaryngology-Head and Neck Surgery, Weill Cornell Medical College and New York Presbyterian Hospital, New York; †Weill Cornell Medical College, New York; and ‡Hearing and Speech Center, Weill Cornell Medical College, New York, New York, U.S.A.
Objective:
To determine the preservation of pure tone thresholds for a series of cochlear implant patients who underwent atraumatic round window insertion with a new thin 22-mm electrode to a 20-mm depth.
Study Design:
Retrospective, within-subject repeated measures design.
Setting:
Tertiary care hospital.
Patients:
Nine sequential cochlear implant patients with functional preoperative acoustic hearing (defined as low-frequency pure tone average thresholds ≤90 dB).
Intervention:
Therapeutic.
Main Outcome Measure:
Pure tone thresholds after cochlear implantation.
Results:
Low-frequency hearing preservation was achieved in all cases. Less than 10 dB average change was seen for low-frequency pure tone average measures (125, 250, 500, and 1,000 Hz) at 6 and 12 months following cochlear implantation.
Conclusions:
Atraumatic round window insertion with a thin 22-mm electrode to a 20-mm depth results in dramatically high levels of acoustic hearing preservation among CI patients.
