[使用Nucleus24型人工耳蜗的耳蜗刺激部位及其对电诱发复合动作电位的影响]
[Site of cochlear stimulation and its effect on electrically evoked compound action potentials using the Nucleus24 cochlear implants].
作者信息
Tian Ying, Li Wei, Wang Zheng, Yang Ning, Hui Lian, Jiang Xuejun
机构信息
Department of Otorhinolaryngology, the First Affiliated Hospital, China Medical University, Shenyang, 110001, China.
出版信息
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2012 Nov;26(22):1014-6, 1019.
OBJECTIVE
Using the neural response telemetry (NRT) software to investigate whether a difference exists in ECAP properties depending on the region of the cochlea that is stimulated and measured.
METHOD
Twenty seven Nucleus CI24R (CA) cochlear implant users participated in this study. ECAPs were recorded intraoperatively using the NRT software. No. 1, 4, 8, 11, 17, 22 electrodes were tested for each patient. ECAP amplitude, threshold and slope were measured using amplitude growth sequences.
RESULT
Apical recordings showed on average higher ECAP amplitudes, lower ECAP thresholds and steeper slopes of the ECAP amplitude growth function.
CONCLUSION
Considerable variability exists in ECAPs due to the region of the cochlea that is stimulated and measured.
目的
使用神经反应遥测（NRT）软件研究根据受刺激和测量的耳蜗区域不同，电诱发听觉脑干反应（ECAP）特性是否存在差异。
方法
27名使用Nucleus CI24R（CA）型人工耳蜗的用户参与了本研究。术中使用NRT软件记录ECAP。对每位患者的1、4、8、11、17、22号电极进行测试。使用振幅增长序列测量ECAP振幅、阈值和斜率。
结果
顶端记录平均显示出更高的ECAP振幅、更低的ECAP阈值以及更陡的ECAP振幅增长函数斜率。
结论
由于受刺激和测量的耳蜗区域不同，ECAP存在相当大的变异性。
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