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The reduction of the DPOAE after exposure to noise is described in the literature (14), especially in the 5 and 6 kHz.
One of the things that really interests me--and that I don't know the answer to-is what does that kind of a decrease [in DPOAE amplitude] mean?
Another proposed DPOAE protocol involves the use of test-retest reference limits based on normal variability in serial DPOAE level plotted as a function of f2 frequency levels obtained in a nonexposed (to cisplatin) group of Veteran research participants.
Hearing thresholds measured in pre- and post-test conditions were compared along with averaged DPOAE amplitudes of the two pre-match recordings and the two post-match recordings, using the Wilcoxon signed-rank test for repeated measurements on a single sample.
The DPOAE test offers many advantages to other traditional forms of hearing assessment, such as pure tone audiometry.
CONCLUSIONS DPOAE testing can be accomplished easily in a normal newborn nursery with an acceptable false-positive rate when a two-stage approach is used.
Two infants failed the repeat DPOAE and were tested for middle ear disease with a tympanogram.
The TEOAE and DPOAE were used by being able to identify changes resulting from dysfunction of external auditory ciliated cells of the cochlea (sub-clinical), sensory changes even before these were verified on audiometry [2].
The results thus obtained are a numerical representation for the formula 2f1-f2 = DPOAE.
PTA and DPOAE evaluations were performed by the same audiologist using the same audiometer for all patients.
Conventional Audiometry, Extended High-Frequency Audiometry, and DPOAE for Early Diagnosis of NIHL.
Evaluation of hearing and cochlear function by DPOAE and audiometric tests in patients with ankylosing spondilitis.