正常人膈神经和肋间神经重复电刺激的特点

Phrenic and intercostal repetitive nerve stimulation in healthy people

目的 探讨健康人膈神经重复电刺激 (PRNS)和肋间神经重复电刺激 (IRNS)特点。方法检测了 2 8例健康人双侧PRNS和IRNS ,刺激频率为 3Hz和 5Hz ,记录第 4或第 5波与第 1波间波幅衰减的百分比。结果 PRNS和IRNS均不存在年龄、性别、侧别间的差异 ;合并双侧后的结果显示PRNS和IRNS波幅衰减百分比均小于 7%。PRNS在操作上难度大于IRNS。结论 可将波幅衰减大于 15 %作为PRNS和IRNS异常的标准。

Objective To detect the charateristic of phrenic and intercostal repetitive nerve stimulation(PRNS and IRNS) in heathy people.Methods Bilateral PRNS and IRNS from 28 healthy subjects were tested with stimulation frequency of 3 Hz and 5 Hz. The percentage of amplitude decrement between the 5th or the 4th and the 1st compound muscle action potential were recorded.Results There were no significant differences in the results of PRNS or IRNS in different age,sex and testing sides. After combining the left result with the right one, the amplitude decrement in PRNS and IRNS was less than 7%. PRNS had more technical difficulty than IRNS.Conclusion It is recommended that PRNS and IRNS will be defined as abnormal when their amplitude reduces more than 15%.