The recordability of two sonomotor responses in young normal subjects.
Background: It has been reported that up to 40% of patients over age 60 fail to generate a vestibular evoked myogenic potential (VEMP; Su et al, 2004). When this occurs it is difficult to determine whether the absent VEMP represents evidence of bilateral impairment of the vestibulocollic reflex path...
| Publicado en: | Journal of the American Academy of Audiology Vol. 19; no. 7; pp. 542 - 548 |
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| Autores principales: | , , |
| Formato: | research tables/charts tracings Journal Article |
| Publicado: |
Thieme Medical Publishing Inc.
Jul/Aug2008
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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=105616180&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105616180 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10500545 9OC jtl: Journal of the American Academy of Audiology issn: 10500545 maglogo: Y pubinfo: dt: Jul/Aug2008 vid: 19 iid: 7 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 105616180 36042271 2010155799 10.3766/jaaa.19.7.3 NLM19248730 105616180 ppf: 542 ppct: 6 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: The recordability of two sonomotor responses in young normal subjects. aug: au: McCaslin DL Jacobson GP Harry T affil: Vanderbilt Bill Wilkerson Center for Otolaryngology and Communication Sciences, Nashville, TN sug: subj: Acoustic Stimulation Methods Evoked Potentials, Auditory Physiology Muscle, Skeletal Innervation Neural Pathways Physiology Reflex, Acoustic Physiology Reliability Vestibular Nerve Physiology Vestibule, Labyrinth Physiology Adult Descriptive Research Electromyography Methods Female Male T-Tests Tennessee Waveforms Human Adult: 19-44 years Female Male ab: Background: It has been reported that up to 40% of patients over age 60 fail to generate a vestibular evoked myogenic potential (VEMP; Su et al, 2004). When this occurs it is difficult to determine whether the absent VEMP represents evidence of bilateral impairment of the vestibulocollic reflex pathway or a normal age-related variant (i.e., idiopathic absence). Purpose: The purpose of the present investigation was to determine whether both VEMPs and PAMs could be recorded reliably in a sample of neurologically and otologically intact young adults. If both could be obtained with high reliability in normal subjects, then the bilateral presence of PAM in the bilateral absence of VEMP, at least in younger patients, could be used to support the contention that the absent VEMP represented evidence of bilateral impairment. Research Design: A descriptive study. Study Sample: Attempts were made to record both the VEMP and a second sonomotor response, the postauricular muscle potential (PAM) from 20 young adults. Results: Results showed both the VEMP and the PAM were present in 90% of the ears. Both the VEMP and PAM responses were bilaterally absent for one subject. Also, the VEMP and PAM were unilaterally absent for two subjects. Subjects who generated VEMPs also generated a PAM in at least one ear. Conclusions: The present investigation represents an initial step in the determination of whether the presence of PAMs in the absence of VEMPs can be used as a method of validating the presence of an impairment affecting the vestibulocollic reflex pathway. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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