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F波是逆向激活了运动神经元而出现的晚反应,可用于诊断周围和中枢神经系统疾病.一般的神经传导速度检查只能检查周围神经的远侧部分,F波可以检查神经近心段的潜伏期.本文作者检查了33名完全性贝尔氏面瘫患者和30名正常人,使用丹麦DISA 1500型肌电仪,超强刺激茎乳孔处的面神经,刺激时限为0.2毫秒,记录表面电极放在口轮匝肌和眼轮
F wave is a late reaction that activates motor neurons in the reverse direction and can be used to diagnose peripheral and central nervous system disorders.General nerve conduction velocity examinations can only examine the distal part of the peripheral nerve and the F wave can examine the proximal Latency. The authors examined 33 patients with complete Bell’s facial paralysis and 30 normal subjects using the DISA 1500 Denmark electrosurgeometer to super-intense stimulation of the facial nerve at the stylomastoid foramen for a duration of 0.2 milliseconds with a recording surface electrode placed on Olecranon and eye wheel