Partial conduction blocks in N-hexane neuropathy
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Updated: Sep 30, 2026

Use of In Vivo Single-fiber Recording and Intact Dorsal Root Ganglion with Attached Sciatic Nerve to Examine the Mechanism of Conduction Failure
Published on: August 27, 2019
Carlos Pastore1, Virginia Izura, Dolores Marhuenda
1Clinical Neurophysiology Unit (EMG), University Hospital of San Juan, Carretera Alicante-Valencia s/n, 03550 San Juan, Alicante, Spain. Carlos.Pastore@ua.es
Abstract:
Nerve conduction blocks, defined by a significant reduction in amplitude or area of the compound muscle action potential at proximal compared with distal sites of stimulation, have been described in glue-sniffers and in workers with industrial exposure at an early stage of n-hexane neuropathy. The frequency with which this focal conduction anomaly appears is described and discussed in the case of a very homogeneous group of 10 young workers diagnosed with n-hexane polyneuropathy. Partial conduction blocks occurred in only two workers and may have been related to the intensity and duration of toxic exposure.
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