TITLE

DPOAE Changes in Young Children With Confirmed Hearing Loss Due to Ototoxicity

AUTHOR(S)
Beahan, Nuala; Reichman, Emma; Kei, Joseph; Driscoll, Carlie; Young, June; Suppiah, Ram; Grohn, Mary-Lou; Sockalingam, Ravi; Charles, Bruce
PUB. DATE
November 2006
SOURCE
Australian & New Zealand Journal of Audiology;Nov2006, Vol. 28 Issue 2, p90
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The aim of this study was to examine the pattern of changes in distortion product otoacoustic emissions (DPOAEs) in children with ototoxic hearing loss during chemotherapy. The participants included a control group of 15 normal hearing children (3–12 years) and an experimental group of 7 paediatric oncology patients (1–13 years). Participants were tested using pure tone audiometry (PTA), tympanometry, and DPOAEs (primaries 65/55 dB SPL). The results revealed no perfect match between PTA and DPOAE results with respect to frequency and pattern of decrease/increase of DPOAE amplitudes. Further analysis of DPOAEs in the experimental group revealed three main patterns of change: (1) Concurrent decreases in DPOAEs that matched pure tone threshold (PTT) changes at approximately the same frequencies; (2) DPOAE changes prior to PTT change, suggesting possible predictive power in DPOAE testing and (3) DPOAE and PTT changes not related in terms of test frequency and direction of change, noted in a patient with a high cumulative carboplatin dose.
ACCESSION #
26258184

 

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