Long-Term Impedance Trends Over 10 Years Following Cochlear Implantation: A Retrospective Comparative Analysis

Impedance monitoring is a critical component of cochlear implant (CI) surgery, yet the lack of comprehensive longitudinal data limits the development of evidence-based postoperative monitoring guidelines, potentially compromising patient outcomes.ObjectiveTo track impedance trends over 10 years post-implantation, evaluate the effects of electrode design on impedance dynamics, and examine the influence of patient age...

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Long-term impedance trends over a decade are described, but the retrospective design and lack of a functional outcome link mean no immediate change to post-implantation monitoring protocols is warranted; findings may inform future prospective monitoring guidelines.

As cochlear implant recipients live longer with their devices, understanding decade-long electrode impedance trajectories is essential for guiding device management, troubleshooting, and future implant engineering.

1. 01Retrospective analysis tracked electrode impedance across 10 years post-cochlear implantation.
2. 02Study addresses a recognised gap in long-term device monitoring data.
3. 03Longitudinal impedance changes could affect cochlear implant programming and device performance.
4. 04Comparative design allows identification of differing impedance trajectories across patient subgroups.
5. 05Published in Journal of Otolaryngology – Head & Neck Surgery (DOI: 10.1177/19160216261442102).

PMID

42802683

DOI

10.1177/19160216261442102.

Journal

Journal of Otolaryngology – Head & Neck Surgery

Publication type

research_article

Evidence level

4

Population

Cochlear implant recipients with at least 10 years of post-implantation follow-up

Intervention

Longitudinal measurement of electrode impedance over 10 years post-cochlear implantation

Comparator

Comparative subgroups within the cohort (specific comparators not stated in abstract)