Navegando por Palavras-chave "Otoacoustic Emissions"

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    Análise comparativa das emissões otoacústicas com a timpanometria em lactentes de 0 a 6 meses
    (CEFAC Saúde e Educação, 2012-06-01) Camboim, Elizângela Dias [UNIFESP]; Correia, Aline Mabel Novaes; Vasconcelos, Dênis; Torres, Raquel; Scharlach, Renata Coelho [UNIFESP]; Azevedo, Marisa Frasson de [UNIFESP]; UNCISAL Faculdade de Fonoaudiologia de Alagoas; Hospital Santa Juliana Instituto do Otorrinolaringologia; Universidade Bandeirante de São Paulo; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: to compare the findings of TEOAE with tympanometry in 226 and 1000 Hz in infants. METHOD: the study was conducted in the Department of Otolaryngology, Hospital Santa Juliana Maceio - Alagoas. We selected infants of both genders, aged from newborn to six months. We excluded those with cleft palate, external and/or middle ear malformation, syndromes, and family history of hearing loss. The following procedures were conducted: anamnesis in order to identify hearing impairment and to select the sample according to the criteria of inclusion and exclusion; otorrinolaringological assessment using otoscopy and hearing evaluation that consisted of transient evoked otoacoustic emissions (TEOAE) and tympanometry with 226 and 1000Hz probe tones. In order to analyze the qualitative variables, we used the test for Equality of Two Proportions, and the Chi-Square for Independence and the confidence interval for the average used for the analysis of the results of quantitative variables. RESULTS: comparing the results of TEOAE with the tympanometry results that were obtained with 226Hz and 1000Hz probe tones, we observed an association of TEOAE with the 1000Hz probe for both ears, the infants with TEOAEs absence had altered tympanogram results and the ones where the TEOAEs were present had normal tympanograms. CONCLUSION: There was a higher correlation between the results of the 1000 Hz probe tympanometry and the TEOAE in order to identify normal ear responses and middle ear disorders.
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    Avaliação audiológica em funcionários de um hospital público expostos a ruído
    (CEFAC Saúde e Educação, 2014-06-01) Iizuka, Letícia Yurie; Gil, Daniela [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Purposeto characterize and to compare the hearing of employees of a public hospital exposed to maximum occupational noise levels above and below 85dB(A). Methodthis clinical study selected 39 workers of a public hospital, divided according to the level of noise exposure: 20 subjects with maximum exposure levels above 85dB(A) (Group 1) and 19 individuals with maximum exposure levels below 85dB(A) (Group 2). Basic audiological evaluation, transient and distortion product otoacoustic emissions were carried out. Resultboth groups presented normal hearing thresholds. However, 87.5% in Group 1 and 60.5% in Group 2 showed absent responses in transient evoked otoacoustic emissions, with statistical difference. Group 2 showed higher signal/noise ratios also in distortion product otoacoustic emissions, and only the frequency of 6 kHz was abnormal in both groups. Conclusionsound pressure levels and noise exposure time did not influence in pure tone thresholds. The higher the sound pressure level and the longer the exposure time, more altered the otoacoustic emissions, indicating cochlear dysfunction.