Caloric function as a predictor of cochlear implant performance.
| Autor: | Quimby AE; Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA., Wen CZ; Department of Otorhinolaryngology, University of Maryland School of Medicine, Baltimore, MD, USA., Ruckenstein MJ; Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA., Brant JA; Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA.; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA., Bigelow DC; Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Cochlear implants international [Cochlear Implants Int] 2024 Jan; Vol. 25 (1), pp. 28-35. Date of Electronic Publication: 2023 Nov 30. |
| DOI: | 10.1080/14670100.2023.2286165 |
| Abstrakt: | Objectives: Changes in vestibular function have been demonstrated following cochlear implantation (CI). The functional impact of these changes on CI performance has not been well-studied. We sought to assess whether caloric changes postimplantation could predict CI performance. Methods: Retrospective review of a prospectively collected database at a tertiary care hospital. Patients who underwent CI over a 22-year period (1999-2021) and had videonystagmography (VNG) testing pre- and postimplantation were included. Caloric responses were compared pre- versus post-implantation, and assessed for their ability to predict CI performance as evaluated using AzBio +10 decibels signal-to-noise ratio (dB S/N) scores. Results: 43 CI recipients were included. There was a significant difference in the average maximal slow-phase velocity in response to caloric irrigation in the implanted ear pre- versus post-operatively (21.2 vs. 18.5 deg/s; p = 0.02). Controlling for age and pre-implantation speech recognition performance, pre- and post-implantation caloric responses in the implanted ear significantly predicted CI performance at 0-6 months and >6 months post-implantation. Caloric changes following implantation were not significantly correlated with CI performance. Conclusion: CI impacts vestibular function as evidenced by changes in caloric responses. Vestibular function pre- and possibly post-CI may be clinically useful metrics for predicting some proportion of CI performance variability. |
| Databáze: | MEDLINE |
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