Descriptive Characterization of High-Frequency Distortion Product Otoacoustic Emission Source Components in Children.
Purpose: Distortion product otoacoustic emissions (DPOAEs) provide an objective assessment of cochlear function and are used for serial ototoxicity monitoring in pediatric cancer patients. DPOAEs are modeled as having distortion (near f) and reflection (near 2f-f) component sources, and developmenta...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 66; no. 8; pp. 2950 - 2967 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Aug2023
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=169774243&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 169774243 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Aug2023 vid: 66 iid: 8 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 169774243 10.1044/2023_JSLHR-23-00013 ppf: 2950 ppct: 17 formats: fmt: @attributes: type: P size: 1.8MB tig: atl: Descriptive Characterization of High-Frequency Distortion Product Otoacoustic Emission Source Components in Children. aug: au: Dreisbach, Laura Konrad-Martin, Dawn Gagner, Christine Reavis, Kelly M. Jacobs, Peter G. affil: School of Speech, Language, and Hearing Sciences, San Diego State University, CA. National Center for Rehabilitative Auditory Research, VA Portland Health Care System, OR. OHSU-PSU School of Public Health, Oregon Health & Science University, Portland. Department of Biomedical Engineering, Oregon Health & Science University, Portland. su: Preschool children Children Cochlear implants Cochlea Calibration Acoustic nerve Impedance audiometry Tumors in children Comparative studies Otoacoustic emissions Ototoxicity Radio waves Diagnosis Acoustic nerve diseases At-risk people Descriptive statistics Acoustic stimulation Longitudinal method sug: subj: Preschool children Children Cochlear implants Cochlea Calibration Acoustic nerve Impedance audiometry Tumors in children Comparative studies Otoacoustic emissions Ototoxicity Radio waves Diagnosis Acoustic nerve diseases At-risk people Descriptive statistics Acoustic stimulation Longitudinal method ab: Purpose: Distortion product otoacoustic emissions (DPOAEs) provide an objective assessment of cochlear function and are used for serial ototoxicity monitoring in pediatric cancer patients. DPOAEs are modeled as having distortion (near f) and reflection (near 2f-f) component sources, and developmental changes are observed in these components' relative strengths in infants compared with adults. However, little is known about source component strengths in childhood or at extended high frequencies (EHFs; > 8 kHz). Thus, the purpose of this study was to describe the effects of age and stimulus frequency on DPOAE components in children. Method: DPOAEs were collected with varied frequency ratios (f/f = 1.1–1.25) for a wide range of frequencies (2–16 kHz) in 39 younger (3–6 years) and 41 older (10–12 years) children with constant levels (L/L) of 65/50 dB SPL. A depth-compensated simulator sound pressure level method of calibration was employed. A time waveform representation of the results across various ratios was created to estimate peak pressures and latencies of each DPOAE component. Results: Estimated peak pressures of DPOAE components revealed the greatest differences in DPOAE sources between children occurring at the highest frequencies tested, where the peak pressure of both components was largest for younger compared with older children. Latency differences between the children were only noted at higher frequencies for the distortion component. Conclusions: These results suggest that DPOAE levels decrease with age and reflection emissions are vulnerable to cochlear change. This work guides optimization of protocols for pediatric ototoxicity monitoring, whereby including EHF otoacoustic emissions is clearly warranted and choosing to isolate DPOAE sources may prove beneficial. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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