中国人面神经神经电图正常值与影响因素的探讨

用调节刺激电流强度的方法８６例成年中国人的１７２条面神经电图。结果显示中国人神经电图中肌肉复合动作电位的波幅与潜伏期均呈正态分布，波幅值３．９４±１．０２ｍＶ，变异系数２５．８％；潜伏期３．１８±０．４２ｍｓ，变异系数１３．２％。是无明显差异。左右侧基本对称，作认为，鉴于个体差异较大，对神经电图的解释分析应以左右对称为基点。对影响常人面神经神经电图的各种因素作了较深入的探讨。

An Inquiry on the Normal Value of Chinese'''' ENoG and the Influencing Factors

The normal value of the ENoG of 172 facial nerves from 86 Chinese has been estimated with the method of regulating the strength of stimulating current. It showed that the CAPs of the Chinese' ENoG were of normal distribution. The mean of ampitudes was 3.94 +/- 1.02 mV. The coefficient of variation was 25.8%; The mean of latencies was 3.18 +/- 0.42 ms. The coefficient of variation was 13.2%. The variance from age to age, sex to sex and side to side were not significant. It was concluded that the interpretation of ENoG should be based on the fact that the CAP obtained from one certain subject was symmetrical between the opposite sides. The effecting factors which influenced the ENoG of normal facial nerve were also discussed in this paper.