Estudo audiométrico comparativo entre trabalhadores de área hospitalar expostos e não expostos a ruído

Abstract

Forma de estudo: Prospectivo randomizado. Material e método: O autor realizou avaliação audiométrica em 61 trabalhadores do Hospital do Servidor Público Estadual "Francisco Morato de Oliveira" do IAMSPE, expostos a ruído habitual no seu ambiente de trabalho. Foram selecionadas as áreas de: laboratório clínico, marcenaria, mecânica, serralheria e telefonia. Resultados: Foram comparados com um grupo controle de 30 pessoas, freqüentando ambiente semelhante, mas não expostos ao ruído habitual de maquinário, nos quais, também, foi efetuada avaliação audiométrica. É um estudo preliminar que servirá de base para a análise de exames posteriores. Conclusão: A análise dos resultados obtidos mostrou perda auditiva superior à esperada, nas freqüências 250, 500, 1000, 2000, 4000, 6000 e 8000 Hz, na faixa etária analisada.

Avaliação audiológica em funcionários de um hospital público expostos a ruído

“…Other studies showed a hearing loss in different levels in most of the individuals exposed to noise and who were submitted to tonal audiometry 9,16,17 , which differs from the results found in this research. A justification for such a finding would be the noise level to which this study's participants have been exposed to, that is, maximum levels lower or higher than 85dB (A).…”

“…Nevertheless, in many cases, the hearing alteration is not readily evidenced in the audiometry. Several studies have recognized that even the individuals exposed to occupational noise within the normal hearing threshold, revealed alterations in the register of otoacoustic emissions, both through transient stimuli and the product distortion, evidencing the relevance of such tests for the HLIN precocious diagnosis [9][10][11][12][13] . Frequently associated to buzzing, the hearing loss can also unveil other hearing symptoms, such as hypoacusia, vertigo 14 , recruitment, besides other extra-hearing ailments, such cephalalgia, insomnia, stress, poor concentration, among others 5 .…”

Intensidade de ruído em hospital de 222 leitos na 18ª Regional de Saúde - PR

“…This is regrettable, since this is an avoidable cause of hearing loss. 7 Usually, noise levels in a calm hospital must be in the range of 40 and 50 dB (A); in a moderately noisy hospital it would be between 50 and 60 dB (A), and in a noisy environment it would be between 60 and 70 dB (A). 1 As depicted in Figure 1 (Emergency Room Reception area), the noise level was kept at a mean value of 64.2 dB (A), because it is a place with a continuous flow of people.…”

“…7 The hospital team should be more aware of noise and its effects, so that they may act more efficiently in reducing noise pollution. Thus, we believe that hospital sectors will become more silent and calm, benefiting patients and staff alike.…”

Incidência e prevalência de perda auditiva induzida por ruído em trabalhadores de uma indústria metalúrgica, Manaus - AM, Brasil

“…According to Leme, this has also been observed in clinical practice, and during the audiogram, a better response of the right ear in relation to the left one may be observed. However, the possible physiological mechanisms for such difference seem to be unknown 20 .…”