Significance of the change of electroneurogram in the early stage of Guillain-Barre syndrome

Objective: To study the diagnostic value of electroneurogram in the early stage of Guillain-Barre syndrome(GBS).Methods: The electroneurograms of 16 cases with GBS,which involved motor nerve conduction velocity(MCV),sensory nerve conduction velocity(SCV)and F wave,were analyzed two weeks after the seizure.Results: MCV was slower in 31.3%,marginal latency(ML) was prolonged in 28.1%,SCV was slower in (25.0%).The abnormity rate of was 87.5%.Conclusions: The F wave abnormailty is a especially sensitive index in the early diagnosis of GBS.It has more diagnostic value;when less frequency of F wave occurs.