两种刺激声坐姿下颈部及眼部前庭诱发肌源性电位特征分析  

Analysis of the Characteristics of Cervical and Ocular Vestibular Evoked Myogenic Potentials under Two Kinds of Stimulating Sounds in Sitting Posture

作　　者：赵苗苗 邵薏汀 金晓杰[2] ZHAO Miao-miao;SHAO Yi-ting;JIN Xiao-jie

机构地区：[1]浙江中医药大学,杭州310053 [2]上海交通大学医学院附属仁济医院,上海200025

出　　处：《中国听力语言康复科学杂志》2024年第5期488-491,共4页Chinese Scientific Journal of Hearing and Speech Rehabilitation

摘　　要：目的研究不同刺激声在坐姿下诱发的前庭诱发肌源性电位(vestibular-evoked myogenic potentials,VEMPs)特征,提供各波潜伏期及振幅等参数的正常值参考范围。方法分别用500 Hz短纯音(tone-burst)及500 Hz线性调频脉冲音(CE-chirp)两种刺激声对21名(男11人,女10人)听力正常且无耳蜗及前庭系统疾病的青年人(年龄22~33岁,平均年龄23.95±3.29岁)进行VEMPs测试,测试起始强度为110 dB nHL,以5 dB为步阶测试至阈值,记录各强度参数,并进行分析。结果两种刺激声坐姿下诱发的cVEMP及oVEMP阈值分别为tone-burst cVEMP 85.00±6.10 dB nHL,CE-chirp cVEMP 84.63±4.99 dB nHL;tone-burst oVEMP 83.38±6.54 dB nHL,CE-chirp oVEMP 82.50±6.20 dB nHL。两种刺激声测得的各强度p1潜伏期、n1潜伏期有显著差异(P<0.05),p1-n1波间期、p1-n1振幅、双侧不对称性、双侧振幅比、双侧对称系数等均无显著差异(P>0.05)。结论坐姿下正常青年人两种刺激声给声强度100 dB nHL时VEMPs的引出率均为100%,500 Hz线性调频脉冲音可作为VEMPs测试的刺激声应用于临床,评估椭圆囊和球囊功能。Objective To observe the normal range of Vestibular-evoked myogenic potentials(VEMPs)by 500 Hz CE-chirp and 500 Hz tone-burst stimuli in sitting position.Methods 21 normal hearing adult volunteers(42 ears,11 males and 10 females)included(without ear diseases).500 Hz tone-burst and 500 Hz CE-chirp stimuli were used to conduct VEMPs.The intensity began from 110 dB nHL to threshold,5 dB as a step.We recorded and analyzed each data by different intensities.Results The thresholds of cVEMP and oVEMP by different stimulations were as followed:Tone-burst cVEMP(85.00±6.10)dB nHL,CE-chirp cVEMP(84.63±4.99)dB nHL.Tone-burst oVEMP(83.38±6.54)dB nHL,CE-chirp oVEMP(82.50±6.20)dB nHL.The p1 and n1 latency of different stimulations had significant differences(P<0.05).The p1-n1 interval latency,p1-n1 amplitude,inter-aural asymmetry and bilateral amplitude ratio found no statistically difference(P>0.05).Conclusion In the sitting position,The extraction rate of VEMPs was 100%in normal young people when two kinds of stimuli were given to 100 dB nHL,CE-Chirp can be used as the stimulus sound of VEMPs test in clinic to evaluate the function of utricle and saccule.

关 键 词：颈部前庭诱发肌源性电位 眼部前庭诱发肌源性电位 线性调频脉冲音 短纯音 坐姿 

分 类 号：R765.04[医药卫生—耳鼻咽喉科]