Outcome of early cochlear implantation

Area of Science:

• Pediatric Audiology
• Otolaryngology
• Speech-Language Pathology

Background:

• Universal newborn hearing screening identifies congenital hearing loss early.
• Severe to profound hearing loss in children may necessitate cochlear implantation (CI) for speech perception.

Purpose of the Study:

• To compare speech perception outcomes in children who received cochlear implantation (CI) at or before 2 years of age versus those implanted later.
• To determine the impact of early CI on speech perception development.

Main Methods:

• Retrospective study comparing two groups: children implanted by age 2 (C1) and those implanted after age 2 (C3).
• Speech perception scores (IT-MAIS, TACL-R, PPVT) were assessed pre- and post-implantation.
• Statistical analysis, including Student's t-test, was used to determine significance.

Main Results:

• Both early (C1) and later (C3) implanted groups showed improvement in speech perception.
• A statistically significant difference in the degree of improvement was observed, favoring the early implantation group (P = 0.034).
• Follow-up periods were comparable between groups, with no significant difference.

Conclusions:

• Children receiving cochlear implants (CI) earlier demonstrate more rapid development of speech perception skills.
• Early CI facilitates the development of foundational listening abilities and spoken language acquisition.
• Early CI enhances successful integration into mainstream preschool environments, promoting social and cognitive development.