Estudo comparativo das medidas de imitância acústicas em tabagistas e não tabagistas

Abstract

OBJETIVO: realizar um estudo comparativo das medidas de imitância acústica em tabagistas e não tabagistas, visando identificar a ocorrência de um comportamento específico na população tabagista.MÉTODOS: em uma amostra 80 indivíduos, 40 tabagistas e 40 não tabagistas, foram obtidos o volume do meato acústico externo, a admitância, a pressão de pico e o gradiente.RESULTADOS: os resultados mostraram que pressão de pico apresentou diferença significante entre os grupos, revelando-se mais negativa no grupo dos tabagistas, tanto para a orelha direita (p=0,004) quanto para a esquerda (p=0,011). Nas demais medidas investigadas não foram verificadas diferenças estatísticas.CONCLUSÃO: Desta forma, o presente estudo conclui que a pressão do pico do timpanograma é uma medida imitanciométrica capaz de diferenciar tabagistas e não tabagistas, sendo que nos tabagistas a pressão mostra-se significantemente mais negativa.

Audição em fumantes: uma revisão

“…This article analyzes the scientific production concerning the effect of tobacco use in the peripheral auditory system and / or central nervous system; as various studies have hypothesized that cigarette smoking can cause hearing loss 1,[4][5][6][7][8][11][12][13][14][15][16][17][18][19][20] .…”

“…The literature review showed that all the publications found correspond to health and were published in magazines related to speech therapy 5,12,18 otolaryngology 4,13-15 diagnostics, 16 biomedicine, and medicine 17,19 . All articles had audiological diagnostics of smokers as a principal theme.…”

“…The audiometry tonal threshold is considered the gold standard for obtaining thresholds and audiometric configuration in adults. Therefore, this has been used in all the articles found; some used this for comparison of hearing thresholds of smokers and nonsmokers 4,5,[13][14][15][16][17]19 , and others only for application of the exclusion criteria, since individuals could not have thresholds above 25dBHL 12,18 . Only three studies used exclusively conventional tonal audiometry for hearing research 5,15,19 , and the others added other forms of evaluation.…”

“…Regarding the results of the tests, conventional audiometry was found, and in the majority of articles, tonal thresholds were within normal standards 4,[12][13][14]16,18 . Among these studies, some auditory thresholds in smokers were worse when compared to the thresholds of non-smokers, with a statistically significant difference 4,13,16 .…”

“…There was only one study that presented no significant differences regarding the auditory thresholds between groups 14 . The others did not compare hearing thresholds between groups 12,18 . Four study groups, among those selected, found altered auditory thresholds 5,15,17,19 and one of them found hearing loss only in the frequency of 8000 Hz 17 .…”