Maximum acceptable level for the determination of ECAP and ESRT in a paediatric population.
Cochlear Implants Int
; 23(4): 214-224, 2022 07.
Article
en En
| MEDLINE
| ID: mdl-35380097
ABSTRACT
OBJECTIVES:
Two of the most used objective measures are electrically evoked action potentials (ECAPs) and electrically evoked stapedius reflex thresholds (ESRTs). Although stimuli used for these measures differ considerably, both measures are influenced by subjective loudness percept. We focus on the subjective maximum acceptable loudness (MAL) to investigate if loudness sensitivity varied along the electrode array during ECAP recordings. In addition, we explored how the MAL reached during an ECAP recording related to the postoperative ESRT.METHODS:
Uni- and bilaterally implanted young CI users (n = 15, average age = 9 y, age range 3-18 y) underwent ECAP and ESR recordings using the clinical software MAESTRO (MED-EL, Innsbruck, Austria) and a commercially available immittance instrument (PATH MEDICAL GmbH, Germering, Germany).RESULTS:
Loudness tolerance during ECAP recordings was lowest at the two apical-most electrode contacts (number 1 and 2). There was a moderate correlation between the MAL achieved during ECAP recordings and ESR maximum stimulation amplitudes. (r 0.44344).CONCLUSIONS:
ECAP recordings should commence at basal or medial contacts to increase the users' comfort and loudness tolerance, especially in young CI users. A higher maximum stimulation appears to increase the chance of the automatic determination of ECAP thresholds for all electrode contacts.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Implantes Cocleares
/
Implantación Coclear
Límite:
Adolescent
/
Child
/
Child, preschool
/
Humans
Idioma:
En
Revista:
Cochlear Implants Int
Asunto de la revista:
AUDIOLOGIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Italia