Current Perception Threshold and Sympathetic Skin Response in Diabetic and Alcoholic Polyneuropathies.

Abstract

Correlation between current perception threshold and sympathetic skin response was investigated in patients with diabetic or alcoholic polyneuropathy.Current perception threshold was measured using Neurometer CPT/C, and the sympathetic skin response was measured using Neuropack sigma.Fourteen patients with diabetic polyneuropathy and 10 patients with alcoholic polyneuropathy were studied.There was a significant negative correlation between the current perception threshold to 5 Hz stimulation and the amplitude of sympathetic skin response.Since both current perception threshold to 5 Hz stimulation and sympathetic skin response are related to C fibers, these two are considered to be impaired concurrently in diabetic and alcoholic polyneuropathies.