Speech Perception Performance in Prelingually Deaf Children with Cochlear Implants

Abstract

The goals of this study were to report on mean values of speech perception performance in prelingually deaf children implanted with a Combi 40/40+ cochlear implant. A total of 31 patients were included in the study. The time span ranged over 3 years, during which time the Evaluation of Auditory Responses to Speech (EARS) test battery was used with the children. The EARS battery contains four measures of closed-set speech perception and three open-set tests. The mean test results exhibited steady improvement on all parts of the EARS test battery, even up to 3 years post-implantation. The preoperative scores for the Listening Progress Profile (LiP) were 4%, rising to 93% at 36 months post-implantation. Results for the open-set testing measures were most encouraging, with some children reaching fairly high levels of speech perception, receiving scores as high as 100% by the 36-month evaluation. The congenitally and prelingually deaf children in our study showed continuous improvement in both closed and open set speech perception following cochlear implantation, although variability in individual performance among the children was noted.