Lalayants MR, Chugunova TI, Bakhshinyan VV, Tavartkiladze GA. [Electrically evoked ABR through cochlear implant in children with auditory neuropathy spectrum disorder].
Vestn Otorinolaringol 2022;
87:4-9. [PMID:
35605265 DOI:
10.17116/otorino2022870214]
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Abstract
OBJECTIVE
To estimate the applicability of electrically evoked auditory brainstem response (eABR) registration for the estimation of neural integrity after cochlear implantation (CI) in children with auditory neuropathy spectrum disorder (ANSD) and to compare the eABR data with patient's hearing performance.
MATERIAL AND METHODS
4 children, Nucleus (Cochlear) CI users, with ANSD were enrolled in the study. Hearing performance in these children ranged from successful to unsatisfied. eABR were recorded via Eclipse EP25 (Interacoustics). Electrical bipolar stimulation was achieved with Custom Sound EP software (Cochlear).
RESULTS
EABR were registered with the use of different stimulation parameters (pulse width, stimulated electrodes) in 3 patients with satisfactory results of rehabilitation. eABR thresholds corresponded to maximum comfortable levels of patients stimulation MAP. eABR were absent in the patient with poor hearing performance.
CONCLUSIONS
EABR measurements in children with ANSD demonstrated restoration of neuronal conduction in the auditory pathway up to the brainstem after cochlear implantation in 3 patients. eABR results were well correlated with hearing performance. Thereby, the study of eABR applicability for clinical practice will be expanded.
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