Lisa R Park, Margaret E Richter, Erika B Gagnon, Shannon R Culbertson, Lillian W Henderson, Margaret T Dillon
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引用次数: 0
Abstract
Objectives: This study was designed to (1) compare preactivation and postactivation performance with a cochlear implant for children with functional preoperative low-frequency hearing, (2) compare outcomes of electric-acoustic stimulation (EAS) versus electric-only stimulation (ES) for children with versus without hearing preservation to understand the benefits of low-frequency acoustic cues, and (3) to investigate the relationship between postoperative acoustic hearing thresholds and performance.
Design: This was a prospective, 12-month between-subjects trial including 24 pediatric cochlear implant recipients with preoperative low-frequency functional hearing. Participant ages ranged from 5 to 17 years old. They were recruited at their device activation and fit with EAS or ES based on their postoperative thresholds. Group outcomes were compared for single-word recognition, masked sentence recognition, perceived hearing abilities, speech production, receptive language, expressive language, and prosodic identification.
Results: Children experienced improvements in word recognition, subjective hearing, speech production, and expressive language with EAS or ES as compared with their preoperative abilities. Children using EAS performed better on a prosodic identification task and had higher subjective hearing scores postactivation as compared with children using ES. There was a significant relationship between postoperative thresholds at 125 Hz and prosodic identification.
Conclusions: The results of this study support cochlear implantation for children with normal-to-moderate low-frequency hearing thresholds and severe-to-profound high-frequency hearing loss. They also highlight the benefits of postoperative hearing preservation for language development.
期刊介绍：
From the basic science of hearing and balance disorders to auditory electrophysiology to amplification and the psychological factors of hearing loss, Ear and Hearing covers all aspects of auditory and vestibular disorders. This multidisciplinary journal consolidates the various factors that contribute to identification, remediation, and audiologic and vestibular rehabilitation. It is the one journal that serves the diverse interest of all members of this professional community -- otologists, audiologists, educators, and to those involved in the design, manufacture, and distribution of amplification systems. The original articles published in the journal focus on assessment, diagnosis, and management of auditory and vestibular disorders.
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