Related Experiment Video
Updated: Nov 10, 2025
Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice
Published on: January 9, 2019
Effect of unilateral cochlear implant use on contralateral electrically evoked auditory brainstem responses to round
Jun-Ge Zhang1,2, Li Chen1,2, Ping Li1
1Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
Background:
Long-term use of a unilateral cochlear implant (CI) may lead to abnormal development of contralateral auditory pathway.
Objectives:
To investigate the usefulness of measuring the electrically evoked auditory brainstem response (eABR) with the electrical stimulation at the round window membrane and the effect of unilateral CI use on the contralateral auditory pathway functions.
Materials And Methods:
According to duration of unilateral CI use, 45 children with severe or profound sensorineural hearing loss were divided into sCI (≤12 months), lCI (≥24 months) and nCI (no CI use) groups. Intra-operative eABRs evoked by electrical stimulation at the round window membrane were recorded.
Results:
The latencies of eIII and eV were significantly longer in lCI group than in sCI group and in nCI group, respectively, but not significantly different between sCI group and nCI group. The eABR thresholds and eIII-eV latency intervals were not significantly different among three groups.
Conclusions And Significance:
The eABR evoked by the electrical stimulation at the round window membrane is a reliable and effective way of evaluating functions of the auditory pathway in deaf children. Long-term use of a unilateral CI may promote the degenerative process of the contralateral auditory pathway to the level of the brainstem.
More Related Videos
07:00Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
Published on: June 21, 2024
03:49Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
Published on: October 11, 2024
