[Neurological electrophysiology]

The electroneuromyogram (ENMG) is currently used and deserves to be realized in all cases where a peripheral nervous system affection is present. The ENMG has a proper semiology which correspond to an underlying peripheral nerve, muscular or of the neuromuscular junction pathology. It allows to evaluate the neuromuscular pathologies and to precise the physiopathological process. It allows to differentiate the peripheral nerve disorders from primary muscular disorders. Within the peripheral nervous system disorders, it allows to separate the axonal from the demyelinating lesions. The ENMG allows also to evaluate the severity of the affection and to predict the possibilities of reinnervation.