1995 Volume 38 Issue 2 Pages 176-182
One hundred-forty infants under 4 years old suspected of hearing loss were measured transient evoked otoacoustic-emission (TEOAE) without sadation and the results were discussed. The signal processor for ABR was converted to TEOAE measurement and stimulus was a 1.5kHz short tone burst. TEOAEs in 203 ears of 226 were easily detected the good responses in normal hearing ears without middle ear abnormalities.
Though 2 cases judged as “unevaluatable” in ABR showed responses with high reproducibility in TEOAE, the response FFT in ILO-88 and following examination revealed their high tone sensorineural hearing losses. So it is the important factor in audiological evaluation of TEOAE for not only the strength and reproducibility of the responses but also the FFT analysis in TEOAE.
TEOAE measurement in infants was easy, speedy and noninvasive. Moreover, the response of TEOAEs was clearly obtained with accuracy. We conclude that TEOAE is suitable examination for detection of hearing impairment and is a useful auditory screening in infants.
