What to do with the other ear after cochlear implantation

Area of Science:

• Audiology
• Neurosurgery
• Otolaryngology

Background:

• Unilateral cochlear implantation is a standard treatment for profound deafness in children and adults.
• Bimodal stimulation (cochlear implant with contralateral hearing aid) offers benefits.
• Bilateral cochlear implantation provides binaural input, mimicking normal hearing.

Purpose of the Study:

• To discuss the indications for bilateral cochlear implantation versus bimodal stimulation.
• To highlight the role of Cortical Auditory Evoked Potential (CAEP) measurements in decision-making for young children.
• To emphasize the need for updated audiological management protocols for cochlear implant recipients.

Main Methods:

• Review of current literature on cochlear implantation and bimodal stimulation.
• Discussion of audiological assessment tools, including CAEP.
• Analysis of factors influencing the choice between bilateral implantation and bimodal stimulation.

Main Results:

• Bilateral input through cochlear implantation or bimodal stimulation is indicated for achieving binaural advantages.
• CAEP measurements are valuable for determining bilateral implantation suitability in young children.
• Residual hearing in the non-implanted ear may favor bimodal stimulation.

Conclusions:

• The choice between bilateral cochlear implantation and bimodal stimulation depends on individual factors.
• CAEP measurements are crucial for pediatric audiological management decisions.
• New protocols are required for optimizing audiological management in cochlear implant users.