Evidence-based guidelines for recommending cochlear implantation for postlingually deafened adults

Area of Science:

• Audiology
• Otorhinolaryngology
• Biomedical Engineering

Background:

• Adult selection criteria for cochlear implantation were established in 2004.
• Advancements in cochlear implant technology and surgical techniques have improved outcomes.
• A review of current performance data is necessary to update these criteria.

Purpose of the Study:

• To revise and update adult selection criteria for cochlear implantation.
• To reflect current post-operative performance outcomes of cochlear implant recipients.
• To establish new guidelines for identifying suitable cochlear implant candidates.

Main Methods:

• Retrospective review of 12-month post-operative speech perception performance.
• Analysis of data from 382 postlingually deafened adults implanted with specific cochlear implant models.
• Comparative data analysis to establish revised performance benchmarks.

Main Results:

• Revised guidelines propose candidacy for adults with postlingual hearing loss scoring up to 55% in open-set phoneme recognition in quiet.
• Functional benefit may be influenced by the hearing status of the contralateral ear.
• The study provides a revised dataset for evaluating cochlear implant candidacy.

Conclusions:

• Cochlear implants are supported for candidates with significant residual hearing if one ear meets the revised criteria.
• Patient-specific counseling is crucial to align expectations with predicted benefits.
• Counseling must incorporate contralateral ear hearing status for accurate functional benefit assessment.