[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.
Service de neurophysiologie, clinique EEG, hôpital universitaire, Farhat Hached Sousse, Tunisie, France.
M
M
Dogui
N
N
Mrizak
M
M
Yacoubi
B B
BB
Ali
J
J
Paty
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.