CAJ | 학술논문

目的测试不同头位状态下的胸锁乳突肌肌电和颈部前庭诱发肌源性电位(cervical vestibular evoked myogenic potential,cVEMP),分析胸锁乳突肌表面肌电与cVEMP各参数之间的关系,探讨量化后的胸锁乳突肌表面肌电对cVEMP的影响.方法选取无耳疾史、听力和前庭功能正常、经cVEMP测试波形分化良好的健康青年人30名(60耳),分别记录在不同向对侧偏向头位(与矢状位呈90°、60°、45°和30°)下的胸锁乳突肌表面肌电和cVEMP,分析量化后的表面肌电与cVEMP振幅和潜伏期之间的关系,并进行统计学分析.结果 cVEMP的P1和N1的总体潜伏期分别为(12.50±2.39)ms和(19.79±3.16)ms,不同头位下的差异无统计学意义(F值分别为0.86和0.52,P值分别为0.46和0.67).不同头位下的胸锁乳突肌表面肌电差异具有统计学意义(F=146.63,P＜0.01),cVEMP的P1-N1振幅随头位及胸锁乳突肌表面肌电的变化而变化,差异亦具有统计学意义(F=55.47,P＜0.01).将多次不同肌电下记录到的cVEMP振幅与胸锁乳突肌表面肌电进行线性拟合模型检验,拟合函数为Y=0.769X(r2 =0.591,校正r2=9.590).结论 cVEMP的潜伏期与胸锁乳突肌肌电大小无关,而cVEMP振幅与胸锁乳突肌表面肌电存在明显的正线性相关.选择合适的头位记录cVEMP,特别是量化肌电与振幅的关系,将有利于增强cVEMP临床应用的敏感性和准确性.
목적 측시불동두위상태하적흉쇄유돌기기전화경부전정유발기원성전위(cervical vestibular evoked myogenic potential,cVEMP),분석흉쇄유돌기표면기전여cVEMP각삼수지간적관계,탐토양화후적흉쇄유돌기표면기전대cVEMP적영향.방법 선취무이질사、은력화전정공능정상、경cVEMP측시파형분화량호적건강청년인30명(60이),분별기록재불동향대측편향두위(여시상위정90°、60°、45°화30°)하적흉쇄유돌기표면기전화cVEMP,분석양화후적표면기전여cVEMP진폭화잠복기지간적관계,병진행통계학분석.결과 cVEMP적P1화N1적총체잠복기분별위(12.50±2.39)ms화(19.79±3.16)ms,불동두위하적차이무통계학의의(F치분별위0.86화0.52,P치분별위0.46화0.67).불동두위하적흉쇄유돌기표면기전차이구유통계학의의(F=146.63,P＜0.01),cVEMP적P1-N1진폭수두위급흉쇄유돌기표면기전적변화이변화,차이역구유통계학의의(F=55.47,P＜0.01).장다차불동기전하기록도적cVEMP진폭여흉쇄유돌기표면기전진행선성의합모형검험,의합함수위Y=0.769X(r2 =0.591,교정r2=9.590).결론 cVEMP적잠복기여흉쇄유돌기기전대소무관,이cVEMP진폭여흉쇄유돌기표면기전존재명현적정선성상관.선택합괄적두위기록cVEMP,특별시양화기전여진폭적관계,장유리우증강cVEMP림상응용적민감성화준학성.
Objective This study investigated the correlations between electromyography (EMG) of sternocleidomastoid(SCM) and cervical vestibular evoked myogenic potentials(cVEMP),and intended to quantify the influence of EMG of SCM on cVEMP by recording the EMG of SCM and cVEMP in different head positions.Methods Thirty healthy subjects (60 ears),without the history of ear illnesses,were enrolled in this study.In addition,the recruited subjects also showed favorable differentiation of cVEMP waves induced by Blackman pip cVEMP,and EMG were recorded in different head positions (with sagittal at 90°,60°,45°and 30°angle),as well as to analyze and quantify the influence of EMG on cVEMP.Results In the case of the different EMG levels:P1 latency,(12.50 ± 2.39) ms; N1 latency,(19.79 ± 3.16) ms,and the latencies shown no statistical difference (P ＞ 0.05).The amplitude was affected by EMG level,there was significant difference between the amplitudes(F =55.47,P ＜ 0.01).The different head positions on subjects their EMG level or area of EMG effects were statistically significant (P ＜ 0.01).The study found a linear dependence of the amplitude from the EMG levels (r2 =0.591,Adjusted-r2 =9.590).Conclusions The cVEMP amplitude increases as a function of EMG target level,and the latency remains constant.The quantized data will increase the amplitude in clinical diagnosis application of sensitivity,and it will improve the diagnosis of the vestibular system diseases and some related diseases.