A neuropathy index based on motor-sensory electroneurography (ENeG)

Measuring motor and sensory nerve conduction velocity and amplitude of sensory nerve action potentials (ENeG) is an adequate and sensitive way to detect diffuse polyneuropathies. However, due to inter-individual variations, the normal range of each ENeG parameter is quite wide and thus in mild cases of neuropathy all ENeG parameters might be below normal mean values but still within the normal range. A polyneuropathy index based upon ten different ENeG parameters is proposed. It is shown to be sensitive enough to demonstrate neuropathy in single cases and useful when following the course of a neuropathy.