Cheng Y, Zhang Y Z, Han Y Q, Ma W J, Yang H, Zhao J, Chen F, Zhang Q, Xu M
Department of Otolaryngology，Second Affiliated Hospital of Xi'an Jiaotong University，Xi'an，710004，China.
Department of Otolaryngology，Xidian Group Hospital.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2020 Jan;34(1):57-60. doi: 10.13201/j.issn.1001-1781.2020.01.014.
To establish a new method for detecting vestibular function by testing cervical vestibular-evoked myogenic potential induced by galvanic vestibular stimulation in normal population. Twenty normal ears were tested for cervical vestibular evoked myogenic potential induced by galvanic vestibular stimulation. SPSS 18.0 software was used to analyze the obtained data. In all healthy subjects mastoid-forehead galvanic vestibular stimulation produced a positive-negative biphasic EMG responses on SCM ipsilateral to the cathodal electrode. The latency of p13 was（11.52±3.05） ms. The latency of n23 was（15.31±3.38） ms. The amplitude of p13-n23 was（40.55±27.93） μV. The interval of p13-n23 was（3.53±1.38） ms. The interaural asymmetry ratio（AR, %） of p13, n23 latency, the amplitude and interval were respectively（6.96±6.79）%, （6.47±5.93）%, （28.08±26.42）% and （16.61±11.11）%. There was no significant difference in all parameters between the right and left ears of all subjects. The value of cervical vestibular-evoked myogenic potential induced by galvanic vestibular stimulation in normal subjects can be established to explore methods for diagnosis, treatment and researching mechanism of auditory neuropathy and vestibular neuropathy.
建立一种通过检测电刺激前庭诱发的颈前庭肌源性电位来检测正常人群前庭功能的新方法。对20只正常耳朵进行电刺激前庭诱发颈前庭肌源性电位检测。采用SPSS 18.0软件对所得数据进行分析。在所有健康受试者中，乳突-前额电刺激前庭在阴极电极同侧的胸锁乳突肌上产生正负双相肌电图反应。p13潜伏期为（11.52±3.05）ms。n23潜伏期为（15.31±3.38）ms。p13-n23波幅为（40.55±27.93）μV。p13-n23间期为（3.53±1.38）ms。p13、n23潜伏期、波幅及间期的双耳不对称率（AR，%）分别为（6.96±6.79）%、（6.47±5.93）%、（28.08±26.42）%和（16.61±11.11）%。所有受试者双耳各项参数之间均无显著差异。可以确定电刺激前庭诱发正常受试者颈前庭肌源性电位的值，以探索听神经病和前庭神经病的诊断、治疗及发病机制的研究方法。
