Vestibular evoked myogenic potential in unilateral vestibular hypofunction

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dc.contributor.authorSerra, Ana Paula [UNIFESP]
dc.contributor.authorDorigueto, Ricardo Schaffeln [UNIFESP]
dc.contributor.authorAlmeida, Roberta Ribeiro de [UNIFESP]
dc.contributor.authorGananca, Fernando Freitas [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:27:27Z
dc.date.available2016-01-24T14:27:27Z
dc.date.issued2012-07-01
dc.description.abstractConclusion: the patients with unilateral chronic vestibular hypofunction detected by caloric test demonstrated at least some sort of altered vestibular evoked myogenic potential (VEMP) in 63.63% of the cases. the VEMP altered side was the same as the unilateral vestibular hypofunction side in 54.54% of the cases and was the opposite side in 24.24%. the VEMP test improved functional vestibular assessment in patients with unilateral caloric hypofunction. Objectives: To analyze VEMP in patients with chronic dizziness and unilateral vestibular hypofunction and verify findings according to the side and structures involved. Methods: This was an observational study. in all, 66 subjects were evaluated by VEMP (tone bursts/1000 Hz/100 dBnHL/bandpass filtered 10-1500 Hz/4.3 Hz rate), 33 with unilateral vestibular hypofunction, detected by caloric test and clinical data, and 33 control subjects, matched by gender and age. Amplitude of the p13-n23, asymmetry index of the amplitude, p13 and n23 latencies, p13 and n23 interaural difference and threshold were analyzed. Simple descriptive analysis was carried out using the t test, Shapiro-Wilks test, and Mann-Whitney test, p < 0.05. Results: VEMP was altered in patients with unilateral vestibular hypofunction in 63.63% of cases. Thirteen of them were ipsilateral to the vestibular hypofunction and three were contralateral to the vestibular hypofunction. in five cases, VEMP were bilaterally altered.en
dc.description.affiliationUniversidade Federal de São Paulo UNIFESP, Dept Otolaryngol Head & Neck Surg, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo UNIFESP, Dept Otolaryngol Head & Neck Surg, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent732-738
dc.identifierhttp://dx.doi.org/10.3109/00016489.2012.659283
dc.identifier.citationActa Oto-laryngologica. London: Informa Healthcare, v. 132, n. 7, p. 732-738, 2012.
dc.identifier.doi10.3109/00016489.2012.659283
dc.identifier.issn0001-6489
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/35083
dc.identifier.wosWOS:000305423200008
dc.language.isoeng
dc.publisherInforma Healthcare
dc.relation.ispartofActa Oto-laryngologica
dc.rightsAcesso restrito
dc.rights.licensehttp://informahealthcare.com/userimages/ContentEditor/1255620309227/Copyright_And_Permissions.pdf
dc.subjectVestibular function testen
dc.subjectvestibular diseaseen
dc.titleVestibular evoked myogenic potential in unilateral vestibular hypofunctionen
dc.typeArtigo
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