Long-term Outcome After Cochlear Implantation in Children With Single-sided Deafness

Area of Science:

• Audiology
• Otolaryngology
• Pediatric Medicine

Background:

• Congenital single-sided deafness (SSD) presents unique challenges in auditory development and speech perception.
• Cochlear implantation (CI) is a potential intervention for SSD, but long-term outcomes require further investigation.

Purpose of the Study:

• To evaluate the long-term audiological and subjective outcomes of unilateral cochlear implantation in children with congenital SSD.
• To identify factors influencing the degree of benefit derived from cochlear implantation in this population.

Main Methods:

• A retrospective single-center study was conducted involving 20 children with congenital SSD who underwent unilateral cochlear implantation.
• Assessments included speech understanding in quiet and noise, sound localization, subjective reports (SSQ, E-HAK, Bochum questionnaires), and CI usage time.

Main Results:

• Significant improvements were observed in speech-in-noise perception and sound localization abilities post-implantation.
• Subjective assessments using SSQ and E-HAK questionnaires also showed significant positive changes.
• No clear correlation was found between subjective ratings and objective benefits, with considerable interindividual variability in outcomes.

Conclusions:

• Cochlear implantation offers significant benefits for children with congenital SSD, particularly in speech-in-noise and sound localization.
• While generally rated positively, thorough counseling on anticipated benefits is crucial due to outcome variability.
• Future multicenter studies are needed to elucidate factors influencing CI outcomes in SSD.