| Abstract: | In order to observe the damaged nerve successively, we used
superficial magnetic stimulation motor evoked potential (MEP) in the pathological model of
chronic compressed nerve of the cervical nerve roots of cats. We synthesized various change
of the pathomorphology of the nerve damaged to different degrees, and discussed the
relationship between the MEP and the pathomorphologic change of chronic compressed nerve
roots. The results showed that the initial pathologic change of nerve with myelin was
degeneration of myelin shealth. The MEP of the nerve also showed increased latency and
dispersed wave forms. After that the axon of the demylinated nerve degenerated, splitted and
had a peripheral Wallerian Degeneration. The MEP showed an increased latency along with
decreased amplitude. The degree of the MEP's change accompanyed with pathologic change.
So we believe that the magnetic compressed nerve. It has some reference value in figuring out
the damage by analysing factors. |
