正常成人腭帆张肌肌电生理研究

发布时间：2019-03-16 09:46

【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2~3mm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2~3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。
[Abstract]:Objective to establish a method of electromyography (EMG) of (tensor veli palatini,TVP, and to obtain and analyze the electromyography (eletromyography,EMG) characteristics of TVP in healthy people. Methods under nasal endoscopy, 20 healthy adults were treated with the anterior inferior 3mm of eustachian tube and cleft palate as the midpoint of the electrode insertion point, from which the lower about 2~3mm was inserted into the top and the lower point as the electrode, respectively. The subjects were asked to perform a series of swallowing actions to record the EMG waveforms of TVP during swallowing and to compare the waveforms of EMG at different electrode insertion points and at different scanning speeds. Results when the electrode was located on the TVP and the scanning speed was 5ms/div, the EMG, of 38 TVP in 20 subjects was recorded. The EMG pattern could be obtained more accurately and stably. The contraction duration of TVP was 0.863 卤0.255s, the peak voltage was 445.100 卤246.808 渭 V, and the EMG wave pattern was interference phase, the contraction of both sides of TVP was synchronous during swallowing, and no hysteresis was observed. The duration of action potential was 9.142 卤2.178 Ms, the amplitude of action potential was 254.260 卤191.544 渭 V, and the pattern of action potential was mostly 2 ~ 3 phase waveform. Conclusion when the electrode is located on the TVP and the scanning speed is 5ms/div, a more stable EMG pattern can be obtained and the normal range of TVP EMG parameters in normal adults can be obtained.
【作者单位】：广西壮族自治区人民医院耳鼻咽喉头颈肿瘤科;广西医科大学第一附属医院耳鼻咽喉头颈外科;湖北理工学院医学院;
【分类号】：R766.04

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