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Revista de otorrinolaringología y cirugía de cabeza y cuello

versión On-line ISSN 0718-4816

Resumen

WAISSBLUTH A, Sofia; DEL VALLE L, Álvaro  y  TORO A, César. Use of objective measures for cochlear implant programming. Rev. Otorrinolaringol. Cir. Cabeza Cuello [online]. 2019, vol.79, n.3, pp.279-289. ISSN 0718-4816.  http://dx.doi.org/10.4067/S0718-48162019000300279.

Introduction:

Mapping a cochlear implant allows for adjusting ideal electrical stimulation limits. It is an individualized process and detecting the most comfortable loudness level can be challenging. The use of electrically evoked auditory brainstem response (ePEATC) and electrically evoked stapedius reflex thresholds (eREE) have been considered for this purpose.

Aim:

To determine the feasibility of performing ePEATC and eREE on adult and pediatric patients with a cochlear implant, and to evaluate changes in programming following these objective measures.

Material and method:

A prospective, descriptive study was completed, of patients with MED-EL® cochlear implants, separating patients into two groups: adults (n=5) and children (n=5). All of the patients included had their implants activated for 6 months or longer. Epidemiological variables and duration of implant activation were evaluated. Otoscopy, a basic implant functioning evaluation, and objective measures (ePEATC, eREE) were performed. With these results, comfortable loudness levels were adjusted.

Results:

Average duration of implant activation was 27 months and 30 months, for adults and children respectively. Performing ePEATC required more time and cooperation as compared to eREE. Following the objective measures, adjustment of the comfortable loudness levels was required for three adult and two pediatric patients. Sound field audiometry was necessary for two pediatric patients in order to estimate the comfortable loudness levels because the eREE responses were absent.

Conclusions:

It is feasible to perform these objective measures for both adult and pediatric patients, with eREE requiring less time and being better tolerated by patients.

Palabras clave : Cochlear implant; most comfortable loudness level; objective measures.

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