A Pilot Study on Dynamic Changes of EABR after Cochlear Implant
Tao Pan
Wang Yu
Lu Zhaoyi
Wang Zijian
Ma Furong
Abstract： Objective To study dynamic changes in electrically evoked auditory brainstem response (EABR) fol-lowing cochlear implant and to study auditory pathway response characteristics in response to chronic electrical stimu-lation for the purpose of providing a research foundation for studying auditory pathway plasticity. Methods With a prospective design, 20 prelingual children aged 3.2±1.0 years received intro-operative EABR measurement after insert-ing the cochlear implant electrode. EABR measurement was repeated at 5.4±3.2 months after cochlear implant. EABR threshold, latencies of waves III and V and input-output function were analyzed. Results EABR threshold decreased from 196.9±11.1 CL intro-operatively to 189.2±13.2CL CL at 5.4±3.2 months after cochlear implant. Paired t test showed significant change (p=0.006). The wave V latency decreased from 4.72±0.21 ms intro-operatively to 4.60± 0.18 ms at 5.4±3.2 months after cochlear implant (p=0.032). Conclusion Changes in EBAR threshold and latency are already evident at 5.4±3.2 months following cochlear implant. This indicates excellent auditory pathway plasticity in children around 3 years of age and the importance of early auditory training and speech habilitation after cochle-ar implant.
Keywords：Cochlear implantEABRplasticitychildren
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 200-204 )