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正常成人腭帆张肌肌电生理研究

Electromyographic Study on Tensor Veli Palatini in Healthy Population

覃颖;谭颂华;詹悦;唐安洲;

1:广西壮族自治区人民医院耳鼻咽喉头颈肿瘤科

2:广西医科大学第一附属医院耳鼻咽喉头颈外科

3:湖北理工学院医学院

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摘要

目的建立腭帆张肌(tensor veli palatini,TVP)肌电图的检查方法,获得并分析健康人TVP的肌电图(eletromyography,EMG)特征。方法 20例健康成年人在鼻内窥镜介导下,以咽鼓管咽口腭裂前下约3mm作为电极插入点的中点,距该点上、下各约23mm作为电极插入上、下点分别插入电极,嘱受试者进行一系列的吞咽动作,记录吞咽时TVP的EMG波形,并比较不同电极插入点及不同扫描速度EMG的波形。结果电极位于TVP上点,扫描速度为5ms/div时,共记录20例受试者38侧TVP的EMG,该点能更准确且稳定地获得EMG图形;TVP收缩持续时间为0.863±0.255s,收缩产生的峰电压为445.100±246.808μV,其EMG波型为干扰相;吞咽时双侧TVP收缩同步,未观察到滞后现象。动作电位时程为9.142±2.178ms,动作电位的振幅为254.260±191.544μV,动作电位图形多为23mm作为电极插入上、下点分别插入电极,嘱受试者进行一系列的吞咽动作,记录吞咽时TVP的EMG波形,并比较不同电极插入点及不同扫描速度EMG的波形。结果电极位于TVP上点,扫描速度为5ms/div时,共记录20例受试者38侧TVP的EMG,该点能更准确且稳定地获得EMG图形;TVP收缩持续时间为0.863±0.255s,收缩产生的峰电压为445.100±246.808μV,其EMG波型为干扰相;吞咽时双侧TVP收缩同步,未观察到滞后现象。动作电位时程为9.142±2.178ms,动作电位的振幅为254.260±191.544μV,动作电位图形多为23相波形。结论电极位于TVP上点,扫描速度为5ms/div时,可以获得更稳定的EMG图形,并获得了正常成人TVP肌电参数的正常范围。

关键词

腭帆张肌;肌电图;吞咽

基金项目(Foundation):

作者

覃颖;谭颂华;詹悦;唐安洲;

参考文献

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覃颖谭颂华詹悦唐安洲