摘要
目的:应用三维视频眼震图(3D-VNG),记录分析后半规管管石症(PSC-Can)诱发扭转眼震的三维方向特征。方法:回顾60例(左侧22例,右侧38例)PSC-Can患者在Dix-Hallpike试验患侧悬头位与坐起位诱发的垂直扭转眼震,分析其水平分量、垂直分量和扭转分量的眼震特征。结果:60例PSC-Can患者在Dix-Hallpike试验的患侧悬头位和坐起位均诱发出垂直扭转性眼震,在3D-VNG上均呈现水平、垂直、扭转三个眼震分量。在患侧悬头位的3D-VNG上,左/右PSC-Can眼震的水平分量46例向对侧(另14例向同侧)、垂直分量均向上、扭转分量则分别向上/向下;坐起位三个分量诱发眼震的强度弱于悬头位,且垂直和扭转分量眼震方向较悬头位均反转,水平分量眼震反转39例,不反转21例。结论:3D-VNG技术可以从水平、垂直、扭转三个眼震分量客观记录PSC-Can扭转特征性眼震,为PSC-Can诱发眼震的量化分析及半规管生理性功能研究提供了更客观、全面的信息。
Objective The three-dimensional direction feature of torsional nystagmus induced by posterior semicircular canal canalithasis(PSC-Can)was recorded and analyzed using three-dimensional video nystagmography(3D-VNG).Methods Sixty patients(22 on the left side and 38 on the right side)with PSC-Can were enrolled for torsional nystagmus evoked by Dix-Hallpike test in the affected-side head-hanging and sitting positions,and the direction characteristics of the horizontal,vertical and torsional components were analyzed.Results Vertical torsional nystagmus was induced in 60 PSC-Can patients in the head-hanging and sitting positions evoked by Dix-Hallpike test,respectively.Horizontal,vertical,and torsional components of were presented in the 3D-VNG.In the head-hanging position,the direction of horizontal component in the left/right PSC-Can nystagmus was contralateral in 46 cases(the other 14 cases were ipsilateral),the vertical component was upward,and the torsional component was upward/downward,respectively.The intensity of nystagmus induced in the three components in the sitting position is weaker than in the head-hanging position,and the direction of nystagmus was reversed in both vertical and torsional components compared with the head-hanging position.However,the direction of the horizontal component was reversed in 39 cases and not reversed in 21 cases in the sitting position.Conclusion The horizontal,vertical and torsional components of the torsional nystagmus in PSC-Can patients recorded by 3D-VNG,which provided more comprehensive and objective information for the analysis of PSC-Can and the study of semicircular canal physiological function.
作者
温超
刘强
邓巧媚
张雪晴
李姗姗
王巍
陈太生
WEN Chao;LIU Qiang;DENG Qiaomei;ZHANG Xueqing;LI Shanshan;WANG Wei;CHEN Taisheng(Department of Otorhinolaryngology Head and Neck Surgery,Tianjin First Central Hospital,Institute of Otolaryngology of Tianjin,Key Medical Discipline of Tianjin,Key Laboratory of Auditory Speech and Balance Medicine,Otolaryngology Clinical Quality Control Centre,Tianjin,300192,China)
出处
《临床耳鼻咽喉头颈外科杂志》
CAS
CSCD
北大核心
2022年第9期698-701,共4页
Journal of Clinical Otorhinolaryngology Head And Neck Surgery
关键词
三维视频眼震图
后半规管管石症
眼震三维分析
three-dimensional video nystagmography
posterior semicircular canal canalithasis
three-dimensional analysis of nystagmus
