诺尔康人工耳蜗术后电诱发镫骨肌反射测试及临床应用

Electrically Evoked Stapedius Reflex and Clinical Trials in Post-Cochlear Implant Patients of Nurotron

目的探讨电诱发镫骨肌反射(Electrically evoked Stapedius Reflex,ESR)的特性及其反应阈(Electrically evoked Stapedius Reflex Threshold,ESRT)与心理物理测量数值(T和C值)之间的关系,为人工耳蜗调试刺激参数的设定提供参考。方法选取植入诺尔康晨星人工耳蜗系统(CS-10A植入体)、能配合行为调试并可以准确反映其听声感受的植入者19例,采用心理物理方法测量其T值(Threshold Level)、C值(Comfortable Level)及相应电极的ESRT值,并对数据进行分析比较。结果 ESRT闽与植入者反映的C值具有良好的相关性,其关系为C=1.022×ESRT-15.143,而T值与C值、ESRT值之间均无相关性(P>0.05)。结论诺尔康晨星人工耳蜗系统调试中,可通过测量:ESRT值以帮助设定难测者的C值,并有助于动态观察植入者听神经功能。

Objective The aim of this study was to explore the characteristics of the electrically evoked stapedius reflex （ESR） and the electrically evoked stapedius reflex threshold （ESRT）, and its relation with the threshold level （TL） and comfort level （CL）, so that it can provide information for the parameter setting of cochlear implant （CI） mapping （programming）. Methods 19 Nurotron Venus cochlear implant recipients, who could cooperate with mapping and who could well reflect the hearing perception, participated in this study. The TL and CL were obtained psychophysically. The results of TLs and CLs were statistically compared to the ESRT results.Results ESRT value had a significant correlation with CL, which was concluded as CL=l.022xESRT-15.143,but TL had no significant correlation with ESRT and CL （P〉0.05）. Conclusion ESRT can be used to estimate the CL in Nurotron Venus cochlear implant users who cannot well cooperate with the mapping, and also can be used to evaluate the nerve function.