[Impact of the Overlap Region Between Acoustic and Electric Stimulation]. / Einfluss des Überlappungsbereichs zwischen akustischer und elektrischer Stimulation.
Laryngorhinootologie
; 96(6): 361-373, 2017 Jun.
Article
en De
| MEDLINE
| ID: mdl-28178740
ABSTRACT
Patients with residual hearing in the low frequencies and ski-slope hearing loss with partial deafness at medium and high frequencies receive a cochlear implant treatment with electric-acoustic stimulation (EAS, "hybrid" stimulation). In the border region between electric and acoustic stimulation a superposition of the 2 types of stimulation is expected. The area of overlap is determined by the insertion depth of the stimulating electrode and the lower starting point of signal transmission provided by the CI speech processor. The study examined the influence of the variation of the electric-acoustic overlap area on speech perception in noise, whereby the width of the "transmission gap" between the 2 different stimulus modalities was varied by 2 different methods. The results derived from 9 experienced users of the MED-EL Duet 2 speech processor show that the electric-acoustic overlapping area and with it the crossover frequency between the acoustic part and the CI should be adjusted individually. Overall, speech reception thresholds (SRT) showed a wide variation of results in between subjects. Further studies shall investigate whether generalized procedures about the setting of the overlap between electric and acoustic stimulation are reasonable, whereby an increased number of subjects and a longer period of acclimatization prior to the conduction of hearing tests deemed necessary.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Estimulación Acústica
/
Pérdida Auditiva Sensorineural
/
Pruebas Auditivas
/
Enfermedades del Prematuro
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Humans
/
Newborn
País/Región como asunto:
Europa
Idioma:
De
Revista:
Laryngorhinootologie
Asunto de la revista:
OTORRINOLARINGOLOGIA
Año:
2017
Tipo del documento:
Article