语前聋人工耳蜗植入患儿多频稳态诱发反应与主观阈值的相关性研究

Correlation between the thresholds acquired with ASSR and sbjective thresholds in cochlear implants in prelingually deaf children

目的:探讨语前聋人工耳蜗植入患儿多频稳态诱发反应阈值与术后最大舒适阈值(C-level)及行为反应阈值(T-level)的相关性。方法:依据术前多频稳态诱发反应对应的高中低频结果,将112例行Nucleus CI24R(CA)型人工耳蜗植入患者分为有残余听力组和无残余听力组,术后1年测定两组的最大舒适阈值及行为反应阈值,比较两组阈值的差异性。结果:术前多频稳态诱发电位高中低频有残余听力组术后1年最大舒适阈值及行为反应阈值均低于无残余听力组,差异有统计学意义(P<0.05或P<0.01)。结论:依据术前多频稳态结果,可以预估人工耳蜗植入术的效果,为术耳的选择提供参考,并且为医师及家长提供一个合理的期望值。

Objective：To learn the relationship between the auditory steady state responses（ASSR）threshold and C-level and behavior T-level in cochlear implants in prelingually deaf children. Method.. One hundred and twelve children with Nucleus CI24R（CA） cochlear implants were divided into residual hearing group and no residual hear- ing group on the basis of the results of ASSR before operation in this study. Compare the difference between the two groups in C-level and behavior T-level one year after operation. Result： There was difference in C-level and be- havior T-level between residual hearing group and no residual hearing group（P〈0.05 or P〈0.0l）. Conclusion： According to the results of ASSR before operation, we can estimate the effect of cochlear implants,providing refer- ence for the selection of choosing operating ears,and providing a reasonable expectation for physicians and parents of the patients.