[Trigeminal somatosensory evoked potentials in workers handling trichloroethylene].
Trigeminal somatosensory evoked potentials (TSEP) were studied in 33 workers manipulating trichlorethylene for 3 to 22 years and in 33 control subjects. A significant excessive latency delay of N13, P17 and N45 waves in workers was found. Evoked potential abnormalities found in 15 exposed subjects (45%) were as following: excessive latency delay in 9 cases (27%), decrease of amplitude in 2 cases (6%) and asymmetrical responses in 4 cases (12%). Among 5 workers (15%) presenting clinical abnormalities of trigeminal nerve impairment, only one had normal evoked potential. TSEP were altered in 11 workers (33%) who had no clinical impairment. We suggest that TSEP should be confirm trigeminal impairment in chronic cases of workers exposed to carbon tetrachloride and to predict infraclinic lesions.
Dogui
M
M
Service de neurophysiologie, clinique EEG, hôpital universitaire, Farhat Hached Sousse, Tunisie, France.
Mrizak
N
N
Yacoubi
M
M
Ali
B B
BB
Paty
J
J
D000328:Adult; D003389:Cranial Nerve Diseases / Q000139:chemically induced / Q000503:physiopathology; D004558:Electric Stimulation; D005073:Evoked Potentials, Somatosensory / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000139:chemically induced / Q000503:physiopathology*; D014241:Trichloroethylene / Q000506:poisoning*; D014276:Trigeminal Nerve / Q000187:drug effects* / Q000503:physiopathology
D014241:Trichloroethylene
Potentiels évoqués somesthésiques du trijumeau chez des travailleurs manipulant le trichloréthyléne.