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目的：比较超短波治疗周围性面瘫前后的肌电变化。方法：４７例周围性面神经麻痹患者，经超短波治疗，于治疗前及治疗后１～３个月做肌电图检查，共观察１４０块肌肉的肌电变化：失神经电位，运动单位电位波幅，相数，运动单位电位的募集型，传导潜伏期值等变化对比。结果：治疗前后资料经统计学处理差异均有非常显著性，Ｐ＜０．００１。结论：超短波治疗后肌电变化结果显示明显优于治疗前
Objective: To compare the EMG changes before and after treatment of peripheral facial paralysis with ultrashort wave. Methods: Forty-seven patients with peripheral facial paralysis were subjected to ultrashort wave therapy. Electromyography was performed before treatment and 1 to 3 months after treatment. EMG changes of 140 muscles were observed: denervation potential, amplitude of motor unit potential, The number of phases, the type of recruitment of motor unit potentials, conduction latency values and other changes in contrast. Results: The data before and after treatment were statistically significant differences, P <0.001. Conclusion: The results of EMG changes after ultrashort wave treatment are obviously better than those before treatment