Auditory brainstem response in gas station attendants

Revista Brasileira de Otorrinolaringologia

Siqueira, Marcia Amaral¹  Machado, Márcia Salgado²  Tochetto, Tania³  Quevedo, Lenita da Silva⁴ 

[1] Centro de Referência em Saúde do Trabalhador de Santa Maria;Universidade Federal de Ciências da Saúde de Porto Alegre;Universidade Federal de Santa Maria;Universidade de Passo Fundo

关键词: evoked potentials;    auditory;    brain stem;    hearing;    solvents.;   

DOI  :  10.5935/1808-8694.20120035

学科分类：医学（综合）

来源: Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial

【 摘 要 】

Ototoxicity of organic solvents can affect the hearing system up to the cochlea level and the central structures of hearing. OBJECTIVE: To evaluate the neurophysiological integrity of the hearing system in subjects exposed to fuels using ABR. METHOD: Prospective study. We evaluated attendants from three gas stations in Santa Maria/RS. The sample had 21 subjects, who were evaluated by auditory brainstem response. RESULTS: We found an alteration in the absolute latencies of Waves I and III and in all the interpeak latencies, in the right ear. In the left ear there was a change in the absolute latencies of all Waves, and in all the interpeak intervals. A change in the interaural difference of Wave V was found in 19% of the individuals. In the group exposed for more than five years, there were subjects with a statistically significant changes: in the I-V interpeak of the right ear; in the absolute latency of Wave I and in the III-V interpeak of the left year. CONCLUSION: Exposure to fuels can cause alterations in the central hearing system.

【 授权许可】

CC BY