Correlation of transiently evoked to distortion-product otoacoustic emission measures in healthy children

Transiently evoked (TEOAEs) and distortion-product otoacoustic emissions at the 2f1–f2 frequency (DPOAEs) are being used as a clinical tool for diagnosis of peripheral auditory pathology. Because both tests are fast and non-invasive, they may be an excellent method for hearing screening in infants a...

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Bibliographic Details
Published in:International journal of pediatric otorhinolaryngology 2006, Vol.70 (1), p.89-93
Main Authors: Balatsouras, Dimitrios G., Kaberos, Antonis, Kloutsos, Georgios, Economou, Nicolas C., Sakellariadis, Vasilis, Fassolis, Alexandros, Korres, Stavros G.
Format: Article
Language:English
Subjects:
Acoustic Stimulation - methods
Child
Distortion-product otoacoustic emissions
Equipment Design
Female
Fourier Analysis
Hearing
Hearing Loss - diagnosis
Humans
Male
Mass Screening - methods
Otoacoustic emissions
Otoacoustic Emissions, Spontaneous - physiology
Signal Processing, Computer-Assisted
Software
Transiently evoked otoacoustic emissions
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Summary:Transiently evoked (TEOAEs) and distortion-product otoacoustic emissions at the 2f1–f2 frequency (DPOAEs) are being used as a clinical tool for diagnosis of peripheral auditory pathology. Because both tests are fast and non-invasive, they may be an excellent method for hearing screening in infants and children. The purpose of this study was to compare the TEOAE and DPOAE measures obtained in a group of healthy children. Sixty-six school-aged children with normal hearing were included in the study. Subjects with recent otologic disease or abnormal tympanograms were excluded. TEOAEs and DPOAEs were performed using a DP Echoport ILO 292 Otodynamics analyzer connected to a portable personal computer. Correlation between TEOAE amplitudes and DPOAE levels was estimated. Correlation between TEOAE amplitudes and DPOAE levels was highly significant across all measured frequencies. Correlation was more significant at the middle frequencies than at the low and high frequencies. Although frequency specific information may be obtained by both tests, most reliable results were obtained at the middle frequencies. TEOAE values were more prominent at low frequencies, whereas DPOAEs were more effective at high frequencies. Both methods are reliable, objective, fast and useful tests of the cochlear status and should be included in the standard audiological diagnostic work-up of children.
ISSN:0165-5876
1872-8464
DOI:10.1016/j.ijporl.2005.05.022