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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Wideband reflectance in newborns with present transient-evoked otoacoustic emissions

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Author(s):
Kilza Arruda de Lyra e Silva ; Juliana Granja Urosas ; Seisse Gabriela Gandolfi Sanches ; Renata Mota Mamede Carvallo
Total Authors: 4
Document type: Journal article
Source: CoDAS; v. 25, n. 1, p. -, 2013.
Abstract

PURPOSE: To characterize the normal values of acoustic energy reflectance obtained with pure-tone stimulation in neonates prior to hospital discharge. METHODS: Seventy-seven infants (37 girls and 40 boys) were evaluated by measuring acoustic reflectance using pure-tone stimuli, transient-evoked otoacoustic emissions, and tympanometric probe frequencies of 226 Hz and 1 kHz. RESULTS: At low frequencies (258-750 Hz), greater energy reflectance was observed, while at medium frequencies (1-3 kHz), greater energy absorption was observed. There was no difference between ears or between genders. CONCLUSION: Normal energy reflectance values were obtained for the studied population. The data indicate a reflectance curve with a distinct configuration for the studied age. (AU)

FAPESP's process: 09/06450-2 - Middle ear reflectance and otoacoustic emissions in different tympanometric patterns
Grantee:Renata Mota Mamede Carvallo
Support type: Regular Research Grants