| Autor: |
de Souza Alcarás PA; Audiology Department, Speech Therapy School, University of Western São Paulo, UNOESTE, Presidente Prudente 19050-920, SP, Brazil., Zeigelboim BS; Post-Graduate Program in Communication Disorders, Tuiuti University of Paraná, UTP, Curitiba 82010-330, PR, Brazil., Corazza MCA; Audiology Department, Speech Therapy School, University of Western São Paulo, UNOESTE, Presidente Prudente 19050-920, SP, Brazil., Lüders D; Post-Graduate Program in Communication Disorders, Tuiuti University of Paraná, UTP, Curitiba 82010-330, PR, Brazil., Marques JM; Post-Graduate Program in Communication Disorders, Tuiuti University of Paraná, UTP, Curitiba 82010-330, PR, Brazil., de Lacerda ABM; Audiology Department, Speech Language and Audiology School, Medicine Faculty, Université de Montréal, UdeM, Montreal H3C 3J7, QC, Canada. |
| Abstrakt: |
This study aimed to assess the central auditory functions of endemic disease control agents. This cross-sectional cohort study comprised two groups: the exposed group, with 38 male endemic disease control agents with simultaneous occupational noise and pesticide exposure; and the control group, with 18 age- and sex-matched workers without occupational noise and/or pesticide exposure. All participants underwent pure-tone audiometry, brainstem auditory evoked potentials, dichotic digits test, and transient-evoked otoacoustic emissions suppression effect. There was a significant inter-group difference in waves III and V absolute latencies, and interpeak I-III and I-V latencies bilaterally, with worse results found in the exposed group. Abnormal dichotic digits test results occurred more often in the exposed group, with a significant association between pesticide- and noise-exposure and the abnormal results ( p = 0.0099). The transient-evoked otoacoustic emissions with suppression effect did not yield significant inter-group differences. It was concluded that pesticide and noise exposure induce harmful effects on the central auditory functions, particularly on the brainstem and figure-ground speech-sound auditory skills. |
