Dogui M, Mrizak N, Yacoubi M, Ali B B, Paty J
Service de neurophysiologie, clinique EEG, hôpital universitaire, Farhat Hached Sousse, Tunisie, France.
Neurophysiol Clin. 1991 May;21(2):95-103. doi: 10.1016/s0987-7053(05)80064-4.
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.
对33名从事三氯乙烯作业3至22年的工人及33名对照者进行了三叉神经体感诱发电位（TSEP）研究。发现工人的N13、P17和N45波潜伏期明显延长。15名暴露者（45%）出现诱发电位异常，具体如下：9例（27%）潜伏期延长，2例（6%）波幅降低，4例（12%）反应不对称。在5名（15%）有三叉神经损伤临床异常表现的工人中，只有1例诱发电位正常。11名（33%）无临床损伤的工人TSEP也有改变。我们认为TSEP可用于确诊接触四氯化碳工人的慢性三叉神经损伤，并预测亚临床病变。
