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Titre : | Increase in cochlear implant electrode impedances with the use of electrical stimulation (2020) |
Auteurs : | Aniket A. Saoji ; Weston J. Adkins ; Amy P. Olund ; et al. |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol. 59, n°11, Novembre 2020) |
Article en page(s) : | p. 881-888 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Electrodes ; Impédancemétrie ; Implants cochléaires |
Résumé : |
Objective
Electrode impedances play a critical role in cochlear implant programming. It has been previously shown that impedances rise during periods of non-use, such as the post-operative recovery period. Then when the device is activated and use is initiated, impedances fall and are typically stable. In this study, we report a new pattern where electrode impedances increase with device use and decrease with device rest. Design Electrode impedances were measured three to four times every day over a span of 13 months for two cochlear implant patients. Study sample Two patients with a Nucleus cochlear implant participated in this study. Results Both subjects in this study show wide fluctuations in electrode impedances. By taking serial electrode impedance measurements throughout a day of use, we observe that electrode impedances consistently increase with device use and decrease with device rest. Conclusion In this study, we report two cases of electrode impedances increasing as a function of device use. Numerous management strategies were employed to reduce this effect but none prevailed; a clear pathophysiologic mechanism remains elusive. Further study into the cause of this electrode impedance pattern is warranted to establish a management strategy for these cochlear implant users. |
Accès : | Contactez la bibliothèque d'Ixelles si le lien vers la ressource électronique ne fonctionne plus |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/pdf/10.1080/14992027.2020.1799251?needAccess=true |