Longitudinal Analysis of Cochlear Implant Stimulation Levels in the First Year: Optimizing Adult Fitting

OBJECTIVES: The main objective of this study was to investigate the evolution in stimulation levels (C-/M- and T-levels) in adult cochlear implant users from both Advanced Bionics and Cochlear, and to assess whether this trajectory differs between the two brands. The secondary objective was to assess individual patterns of stimulation levels during the first year post-implantation.

Continue reading at PubMed →

C/M-levels and T-levels change significantly across the first year in adult CI recipients, with most change occurring early; audiologists should schedule more frequent mapping sessions in the first months post-activation to optimize outcomes.

Data-driven guidance on when stimulation levels stabilize could help clinics streamline CI fitting schedules, reducing unnecessary appointments while maintaining optimal device performance.

1. 01CI stimulation levels (C/M-levels and T-levels) show the greatest change in the first months after activation.
2. 02Longitudinal data from both Advanced Bionics and Cochlear device users were included, strengthening generalizability.
3. 03Findings support more intensive mapping early post-activation and less frequent adjustments later in year one.
4. 04Study provides normative trajectories that could be used as benchmarks in adult CI fitting protocols.
5. 05Published in Ear and Hearing, a leading peer-reviewed audiology journal.

PMID

42615076

DOI

10.1097/AUD.0000000000001875.

Journal

Ear and Hearing

Publication type

research_article

Evidence level

2b

Population

Adult cochlear implant recipients using Advanced Bionics or Cochlear devices during the first year of implant use

Intervention

Longitudinal tracking of CI stimulation levels (C/M-levels and T-levels) across the first year