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Updated: Sep 25, 2026
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Developmental, audiological, and speech perception functioning in children after cochlear implant surgery
Margaret B Pulsifer1, Cynthia F Salorio, John K Niparko
1Department of Psychiatry, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Insights
Cochlear implantation significantly improved hearing, speech perception, and development in children with severe to profound hearing loss. Younger age at implantation correlated with greater audiological and developmental benefits.
Area of Science:
- Pediatric audiology
- Developmental pediatrics
- Otolaryngology
Background:
- Children with severe to profound hearing impairment face significant challenges in audiological, speech perception, and developmental functioning.
- Cochlear implantation is a critical intervention for restoring hearing in this population.
Purpose of the Study:
- To evaluate the impact of cochlear implantation on audiological, speech perception, and developmental outcomes in children.
- To identify factors influencing the degree of improvement following cochlear implantation.
Main Methods:
- A prospective, longitudinal study analyzed 40 pediatric patients (1.5-9 years) undergoing cochlear implantation.
- Functioning was assessed using standardized tests (Bayley Scales, Stanford-Binet) and audiological/speech perception measures immediately before and one year after surgery.
Main Results:
- Significant improvements were observed in audiological status, speech perception, and overall developmental functioning one year post-implantation.
- Nonverbal intelligence and behavior did not show significant changes.
- Younger age at implantation (under 48 months) was associated with greater audiological and developmental gains.
Conclusions:
- Cochlear implantation leads to rapid and significant improvements in audiological, developmental, and speech perception skills in children.
- The extent of speech perception improvement was greatest in children with less initial impairment.
- Early implantation (younger age) is linked to more substantial developmental benefits.
Objectives:
To examine changes in audiological, speech perception, and developmental functioning subsequent to cochlear implantation in children with severe to profound hearing impairment, and to identify factors related to those changes.
Design:
Prospective, longitudinal analysis to compare functioning of pediatric patients who underwent cochlear implantation before and 1 year after surgery.
Setting:
Outpatient pediatric cochlear implantation program in an academic institution (The Listening Center, The Johns Hopkins University School of Medicine, Baltimore, Md). Patients Forty consecutive pediatric patients between 1(1/2) and 9 years of age who received a cochlear implant between April 1, 1996, and August 31, 1998, and who also underwent psychological, audiological, and speech perception evaluations immediately before and 1 year after implantation.
Main Outcome Measure:
Scores on the Bayley Scales of Infant Development-Second Edition, Stanford-Binet Intelligence Scale-Fourth Edition, Developmental Profile II, Child Behavior Checklist, speech perception categories, and audiological pure-tone thresholds.
Results:
Mean (SD) duration of hearing impairment was 37.78 (27.94) months, mean (SD) age at surgery was 50.72 (27.66) months. Significant improvements were found 1 year after surgery in audiological, speech perception, and developmental functioning, but not in nonverbal intelligence or behavior. Greater benefits in audiological and developmental functioning were associated with younger age (<48 months) at implantation.
Conclusions:
Patients showed significant improvement in audiological status, overall developmental functioning, and speech perception skills in a short time after surgery. Greatest improvement in speech perception was for children with the least initial impairment, and greatest developmental gains were associated with young age at implantation.