Abstract
ObjectivesThe purpose of this study was to assess the effects of cochlear implantation on the functional integrity of the horizontal semicircular canal using multiple methodologies, and to discuss and highlight the limitations of using isolated vestibular tests to assess vestibular function in surgical ears.MethodsTen cochlear implant patients were consented to undergo a preoperative and 3‐month postoperative vestibular assessment. The horizontal semicircular canal (SCC) was assessed using three different vestibular test measures that assess function using different stimuli and at different frequencies ranges: caloric testing, sinusoidal harmonic acceleration testing in the rotary chair, and video head impulse testing in the plane of the horizontal SCC. Data was analyzed using different methods: descriptive, statistical, and by an examination of individual case studies.ResultsEach analysis method yielded a different interpretation. Statistical analysis showed no significant group mean differences between baseline pre‐op vestibular test results and 3‐month post‐op vestibular test results. Descriptive analysis showed 30% of individuals presented with postoperative abnormal vestibular testing findings. A case study examination showed that only one patient presented with a post‐op decrease in vestibular function in the implanted ear.ConclusionsThere are several limitations of conventional vestibular testing in postsurgical cochlear implant patients. A test‐battery approach, including case history, and test interpretation made on a case‐by‐case basis is needed to determine whether the patient has undergone vestibular damage, is at risk for falling, or in need of further management.Level of Evidence2b individual cohort study.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
