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肌电图检测完全失神经面瘫３０例，同时检测患侧额肌、口轮匝肌Ｉ／ｔ曲线６０条，有扭结１９条，直线４１条。计算额肌、口轮匝肌Ｉ／ｔ曲线对数回归直线方程分别为：ＬｏｇＹ＝－０．６４ＬｏｇＸ＋０．９８（ｒ＝０．９９９６，Ｐ＜０．００１）和ＬｏｇＹ＝－０．７６ｌｏｇＸ＋０．８４（ｒ＝０．９９８９，Ｐ＜０．００１）。３０例患者随访１至３年，Ｈｏｕｓｅ－ＢｒａｃｈｍａｎｎⅠ级３例，２３例留有后遗症和并发症，Ⅲ级１０例，Ⅳ级１３例。出现面部明显运动时间病后２至５个月，手术损份４例未恢复。结论：完全失神经面瘫Ｉ／ｔ曲线，随脉宽减小，强度值呈直线上升；两条曲线的建立对于评定面瘫的神经损伤程度、预后及比较不同治疗方法优越性提供了依据。
EMG test completely denervated facial paralysis in 30 cases, while the detection of ipsilateral frontal muscle, orbicularis muscle I / t curve 60, kinking 19, a straight line 41. Calculated the frontal muscle, orbicularis muscle I / t curve logarithmic regression equation were: LogY = -0.64LogX + 0.98 (r = 0.9996, P <0.001) and LogY = -0.76logX + 0.84 (R = 0.9989, P <0.001). Thirty patients were followed up for 1 to 3 years, with 3 cases of House-Brachmann grade I and 23 cases of sequelae and complications. There were 10 cases of grade III and 13 cases of grade IV. 2 to 5 months after the obvious facial movement time, 4 cases of surgical damage did not recover. Conclusion: The I / t curve of complete absence of facial paralysis decreases linearly with the decrease of pulse width. The establishment of two curves is helpful to evaluate the degree of nerve injury, prognosis of facial paralysis and compare the superiority of different treatment methods.