Blink reflex and auditory speech perception in prelingually cochlear-implanted children

Area of Science:

• Audiology
• Neuroscience
• Rehabilitation Medicine

Background:

• Cochlear implantation is a key intervention for prelingual deafness.
• Assessing prognosis in pediatric cochlear implant recipients is crucial for optimizing outcomes.
• The blink reflex (BR), or auropalpebral reflex, is an involuntary response to auditory stimuli.

Purpose of the Study:

• To evaluate the blink reflex as a prognostic indicator for auditory and speech perception in prelingually deaf children following cochlear implantation.
• To determine if the presence or absence of the blink reflex correlates with post-implantation performance.

Main Methods:

• An observational, analytical, prospective study involving 85 prelingually deaf children with cochlear implants.
• Blink reflex (BR) presence was assessed using electrophysiological stimulation.
• Auditory and speech perception were measured using the vowels-confusion test and categorization of auditory perception scale.

Main Results:

• Patients with a present blink reflex (R+) demonstrated significantly higher mean scores in auditory and speech perception tests compared to those without the reflex (R-).
• This indicates a strong correlation between BR presence and better post-implantation functional outcomes.

Conclusions:

• The blink reflex is a valuable prognostic factor for assessing auditory and speech perception in prelingually deaf pediatric cochlear implant users.
• Children lacking the blink reflex may not be optimal candidates, suggesting a need for tailored rehabilitation strategies.
• Integrating additional rehabilitation methods is recommended for R- patients to enhance prosthesis efficacy.