| Full text | |
| Author(s): |
Kilza Arruda de Lyra e Silva
;
Juliana Granja Urosas
[2]
;
Seisse Gabriela Gandolfi Sanches
[3]
;
Renata Mota Mamede Carvallo
[4]
Total Authors: 4
|
| Document type: | Journal article |
| Source: | CoDAS; v. 25, n. 1, p. 29-33, 2013-00-00. |
| 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 Opportunities: | Regular Research Grants |