Performance of hearing skills in children with auditory neuropathy spectrum disorder using cochlear implant: a systematic review

Abstract

The analyzed studies demonstrated that after cochlear implant surgery, individuals with auditory neuropathy spectrum disorder improved their performance of hearing skills and had similar performance to that of children with sensorineural hearing loss using cochlear implant.

Ensino por múltiplos exemplares e integração de comportamentos de ouvinte e falante com unidades sintáticas substantivo-adjetivo em crianças com DENA e IC

“…In Pereira et al (14) , there was a lower number of teaching exposure until reaching the correct responses criteria and a synthesis of researches revealed that children with neurosensory hearing loss and CI present few repetitions to teaching blocks to learn listener's behaviors, such as to relate pictures to dictated stimuli (25) . However, this high quantity of repetitions to the teaching blocks was also found in the study case with ANSD and CI 6 and suggests some hypothesis. The participants' performance in both studies can indicate a behavioral evidence of auditory dyssynchrony caused by ANSD and confirms the findings of the Audiology about the difficulties on the acquisition and maintenance of listen abilities, what turns the auditory rehabilitation of this public a challenge (5,6) .…”

“…However, this high quantity of repetitions to the teaching blocks was also found in the study case with ANSD and CI 6 and suggests some hypothesis. The participants' performance in both studies can indicate a behavioral evidence of auditory dyssynchrony caused by ANSD and confirms the findings of the Audiology about the difficulties on the acquisition and maintenance of listen abilities, what turns the auditory rehabilitation of this public a challenge (5,6) . On the other hand, some procedure adjustments can be adopted at MEI teaching viewing at minimizing the auditory dyssynchrony and the discrepancy between the listening and speaking behaviors (measured by the correct response percentages quite distinct for the same words).…”

“…In the comprehensive framework of hearing losses, the Auditory Neuropathy Spectrum Disorder (ANSD) is characterized by the function of the preserved outer hair cells; however, the afferent neural transmission has been altered. This alteration generates a neural dyssynchrony and significantly affects the speech perception and comprehension, mainly in the presence of noise (5) and, as a result, the speech production (6) . The clinical characteristics of children with ANSD are very peculiar and, specifically in relation to oral language, and it was not identified a performance standard or requested personal attention at intervention (7) .…”

“…Children with ANSD diagnostic that do not have gains with a hearing aid for amplification of sounds might obtain benefits by means of cochlear implant (CI) (5) , biomedical device that integrates external and internal components (surgically implanted), and electrically stimulates the auditory nerve fibers, providing an auditory sensation. In the cases of ANSD, this device can minimize auditory dyssynchrony, once it partially replaces the functions of the hearing sensorial cells and directly stimulates the auditory nerve (6) . The neural synchrony improvement by means of CI can deeply contribute to the learning of the listening and speaking abilities of children with ANSD (8) .…”

Ensino de comportamento verbal por múltiplos exemplares em uma criança com desordem do espectro da neuropatia auditiva: estudo de caso

“…Although there is research that demonstrates the effectiveness of CI for people with ANSD regarding improvement of auditory performance -as reflected in the bibliographical review, 28 there is no consensus between studies on how and when a child with ANSD presents good development. Currently, research that demonstrates detailed results that compose what is considered improvement auditory performance in children with ANSD is scarce.…”