The effects of high stimulus rate on the electrocochleogram in normal-hearing subjects.
The use of high stimulus rates has the potential to improve the electrocochleogram's (ECochG) sensitivity and specificity in endolymphatic hydrops and Menière's disease, but is currently hindered by the absence of an acceptable normative database. In response, this study recorded click-evoked ECochG...
| Publicado en: | International Journal of Audiology Vol. 41; no. 8; pp. 509 - 518 |
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| Autores principales: | , |
| Formato: | research tables/charts tracings Journal Article |
| Publicado: |
Taylor & Francis Ltd
Dec2002
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106736321&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106736321 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Dec2002 vid: 41 iid: 8 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 106736321 2004076706 10.3109/14992020209056071 NLM12477171 106736321 ppf: 509 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: The effects of high stimulus rate on the electrocochleogram in normal-hearing subjects. aug: au: Wilson WJ Bowker CA affil: Department of Speech Pathology and Audiology, University of the Witwatersrand, Johannesburg, South Africa sug: subj: Acoustic Stimulation Cochlea Physiology Evoked Potentials, Auditory Adult Analysis of Variance Convenience Sample Descriptive Statistics Friedman Test Middle Age Post Hoc Analysis Reference Values Repeated Measures South Africa Waveforms Wilcoxon Rank Sum Test Human Adult: 19-44 years Middle Aged: 45-64 years ab: The use of high stimulus rates has the potential to improve the electrocochleogram's (ECochG) sensitivity and specificity in endolymphatic hydrops and Menière's disease, but is currently hindered by the absence of an acceptable normative database. In response, this study recorded click-evoked ECochG tracings from 51 normal-hearing subjects (102 ears), between 18 and 60 years of age, at 7.1, 51.1, 101.1 and 151.1 clicks/s using a tympanic membrane electrode. As stimulus rate increased, various statistically significant (p < 0.05) changes were observed. In general, summating potential (SP) latency and amplitude and action potential (AP) latency increased, SP/AP amplitude ratio and waveform width increased but then plateaued, and AP amplitude fluctuated. While providing the largest contribution to a high-stimulus-rate ECochG normative database published to date, potential clinical limitations were identified and a possible solution proposed. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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