Vestibular Evoked Myogenic Potentials in Ipsilateral Delayed Endolymphatic Hydrops

Ohki, Masafumi; Matsuzaki, Masaki; Sugasawa, Keiko; Murofushi, Toshihisa

doi:10.1159/000067566

Cited by 22 publications

(7 citation statements)

References 17 publications

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“…Since VEMPs have been shown to reflect the function of the saccule and the inferior vestibular nerve [10][11][12] , those patients who showed abnormal VEMPs might have such pathologies in the saccule. Our finding that 61% of the patients with DEH showed abnormal VEMPs is consistent with previous studies [18][19][20] . Young et al [18] recorded VEMPs in 20 patients with DEH, and reported that 55% of the patients showed abnormal VEMPs on one side.…”

Section: Discussionsupporting

confidence: 93%

“…Young et al [18] recorded VEMPs in 20 patients with DEH, and reported that 55% of the patients showed abnormal VEMPs on one side. Ohki et al [19,20] reported that abnormal VEMPs were observed in 75% of patients with ipsilateral DEH and 67% of patients with contralateral DEH. In the present study, 73% of patients with ipsilateral DEH and 43% of patients with contralateral DEH showed abnormal VEMPs on one side.…”

Section: Discussionmentioning

confidence: 99%

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Indication of the Side of Delayed Endolymphatic Hydrops by Vestibular Evoked Myogenic Potential and Caloric Test

Egami

Ushio

Yamasoba

et al. 2010

ORL

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Objective: Delayed endolymphatic hydrops (DEH) can be clinically classified into ipsi- and contralateral types. This study aims to investigate the relationship between the results of vestibular evoked myogenic potential (VEMP) and caloric testing and the clinical type of DEH. Methods: The data of 33 patients with DEH who underwent both VEMPs and caloric testing were retrospectively examined. The type of DEH was judged from its clinical and audiological course. Theasymmetry ratios of the VEMPs and canal paresis on the caloric test were measured. Results: The results of VEMP and the caloric testing were consistent with the type of DEH in 61 and 76% of DEH patients, respectively. Combined use of VEMP and caloric testing correctly identified the type of DEH in 82% of patients. Conclusions: The combined use of VEMP and caloric testing can indicate the type of DEH at a reasonably high rate, but inconclusively.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Indication of the Side of Delayed Endolymphatic Hydrops by Vestibular Evoked Myogenic Potential and Caloric Test

Egami

Ushio

Yamasoba

et al. 2010

ORL

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“…Absence of response to Vestibular evoked myogenic potentials in cases of Ménière's disease suggests saccular hydrops 8,10,12 . Depending on the severity of hydrops, some patients may present irreversible degeneration of sensorial epithelium of saccular macula 5,6,8,13 . Absence of response on the non-affected ear was found in 20% of our cases.…”

Section: Discussionmentioning

confidence: 99%

Dos potenciais evocados miogênicos vestibulares nas orelhas comprometida e assintomática na Doença de Ménière unilateral

Ribeiro

Almeida

Caovilla

et al. 2005

Rev. Bras. Otorrinolaringol.

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Aim:To verify whether vestibular evoked myogenic potentials can present abnormalities in the affected ear and in the asymptomatic ear in patients with diagnosis of unilateral Ménière's disease. Study design: Transversal cohort. Material and Method:The vestibular evoked myogenic potentials of 20 patients with unilateral Ménière's disease were analyzed. The selection of individuals was based on the history and in clinical evaluation suggestive of unilaterally defined Ménière's disease, and with electrocochleography abnormalities in the affected ear. Vestibular evoked myogenic potentials were evaluated in both ears of each patient through absolute latencies of p13 and n23, interaural difference of latency of peaks p13 and n23 and amplitude p13-n23 asymmetry rate. Results: Vestibular evoked myogenic potentials were altered in 35.0% of the affected ears and in 25.0% of the asymptomatic ears. The alterations were: absence of responses in seven cases, prolongation of p13 latency in three cases, and increase in interaural amplitude difference ratio in one case. Conclusion: The vestibular evoked myogenic potentials can present abnormalities in the affected and asymptomatic ears in patients with diagnosis of unilaterally defined Ménière's disease.

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“…This probability was scored subjectively based on the ratio of the summating potential to the action potential (SP/AP) on an electrocochleogram, 15,16 the vestibular evoked myogenic potential (VEMP), 17 audiogram frequency and ‰uctuation patterns, and clinical history. A positive VEMP response is considered to be a normal sign of vestibular function, especially for the saccule.…”

Section: Image Evaluation Qualitative Evaluationmentioning

confidence: 99%

Imaging Endolymphatic Hydrops at 3 Tesla Using 3D-FLAIR with Intratympanic Gd-DTPA Administration

et al. 2008

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Purpose: Visualization of endolymphatic hydrops by 3-dimensional ‰uid-attenuated inversion recovery-FLAIR using conventional turbo-spin-echo (3D-FLAIR-CONV) after intratympanic injection of Gd-DTPA has been reported in patients with M áeni àere's disease. Compared to 3D-FLAIR-CONV used in previous studies, the addition of a variable ‰ip-angle technique (3D-FLAIR-VFL) enables very long echo trains and, therefore, shorter scan times. We evaluated whether 3D-FLAIR-VFL could replace 3D-FLAIR-CONV in detecting endolymphatic hydrops after intratympanic Gd-DTPA administration.Methods: Eleven patients were included in this study. Twenty-four hours after Gd-DTPA injection, we performed 3D-FLAIR-CONV and 3D-FLAIR-VFL imaging at 3T. We compared the contrast-to-noise ratio (CNR) between cochlear ‰uid and the cerebellum between the 2 FLAIR sequences. We subjectively scored the size of the endolymphatic space in the cochlea and vestibule for each patient and correlated the scores with the clinical diagnoses.Results: The CNR of 3D-FLAIR-CONV was signiˆcantly higher than that of 3D-FLAIR-VFL. Scores for the size of endolymphatic space in the vestibule were identical between the 2 sequences; however, those in the cochlea disagreed in 3 cases. 3D-FLAIR-CONV correlated better with the clinical diagnoses.Conclusions: Currently, we may not be able to replace 3D-FLAIR-CONV with 3D-FLAIR-VFL, at least not with the scanning parameters used in the present study.

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Vestibular Evoked Myogenic Potentials in Ipsilateral Delayed Endolymphatic Hydrops

Cited by 22 publications

References 17 publications

Indication of the Side of Delayed Endolymphatic Hydrops by Vestibular Evoked Myogenic Potential and Caloric Test

Indication of the Side of Delayed Endolymphatic Hydrops by Vestibular Evoked Myogenic Potential and Caloric Test

Dos potenciais evocados miogênicos vestibulares nas orelhas comprometida e assintomática na Doença de Ménière unilateral

Imaging Endolymphatic Hydrops at 3 Tesla Using 3D-FLAIR with Intratympanic Gd-DTPA Administration

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