Use of neural response telemetry measures of objectively set the comfort levels in the nucleus 24 cochlear implant

John E. King, Marek Polak, Annelle V Hodges, Stacy Payne, Fred F. Telischi

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Cochlear implant programming necessitates accurate setting of programming levels, including maximum stimulation levels, of all active electrodes. Frequently, clinical techniques are adequate for setting these levels; however, they are sometimes insufficient (e.g., very young children). In the Nucleus 24, several methods have been suggested for estimation of comfort levels (C levels) from neural response telemetry (NRT); however, many require co-application of clinical measurements. Data was obtained from 21 adult Nucleus 24 recipients to develop reliable predictions of C levels. Multiple regression analysis was perlormed on NRT threshold, slope of the NRT growth function, age, length of deafness, length of cochlear implant use and electrode impedance to examine predictive ability. Only the NRT threshold and slope of the growth function measures were significant predictors yielding R2 values from 0.391 to 0.769. Results demonstrated that these measures may provide an alternative means of estimating C levels when other clinical measures are unavailable.

Original languageEnglish (US)
Pages (from-to)413-431
Number of pages19
JournalJournal of the American Academy of Audiology
Volume17
Issue number6
DOIs
StatePublished - Jun 2006

Keywords

  • Cochlear implants
  • Neural response telemetry
  • Programming levels

ASJC Scopus subject areas

  • Otorhinolaryngology

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