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Type: Artigo de periódico
Title: High Levels Of Sound Pressure: Acoustic Reflex Thresholds And Auditory Complaints Of Workers With Noise Exposure.
Author: Duarte, Alexandre Scalli Mathias
Ng, Ronny Tah Yen
de Carvalho, Guilherme Machado
Guimarães, Alexandre Caixeta
Pinheiro, Laiza Araujo Mohana
Costa, Everardo Andrade da
Gusmão, Reinaldo Jordão
Abstract: The clinical evaluation of subjects with occupational noise exposure has been difficult due to the discrepancy between auditory complaints and auditory test results. This study aimed to evaluate the contralateral acoustic reflex thresholds of workers exposed to high levels of noise, and to compare these results to the subjects' auditory complaints. This clinical retrospective study evaluated 364 workers between 1998 and 2005; their contralateral acoustic reflexes were compared to auditory complaints, age, and noise exposure time by chi-squared, Fisher's, and Spearman's tests. The workers' age ranged from 18 to 50 years (mean=39.6), and noise exposure time from one to 38 years (mean=17.3). We found that 15.1% (55) of the workers had bilateral hearing loss, 38.5% (140) had bilateral tinnitus, 52.8% (192) had abnormal sensitivity to loud sounds, and 47.2% (172) had speech recognition impairment. The variables hearing loss, speech recognition impairment, tinnitus, age group, and noise exposure time did not show relationship with acoustic reflex thresholds; however, all complaints demonstrated a statistically significant relationship with Metz recruitment at 3000 and 4000Hz bilaterally. There was no significance relationship between auditory complaints and acoustic reflexes.
Subject: Hearing Loss, Noise-induced
Noise, Occupational
Perda Auditiva Provocada Por Ruído
Reflex, Acoustic
Reflexo Acústico
Ruído Ocupacional
Rights: fechado
Identifier DOI: 10.1016/j.bjorl.2014.07.017
Date Issue: -1-Uns- -1
Appears in Collections:Unicamp - Artigos e Outros Documentos

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