Cervical and ocular vestibular-evoked myogenic potentials in acute vestibular neuritis

Shin, Byoung‐Soo; Oh, Sun-Young; Kim, Ji Soo; Kim, Tae Woo; Seo, Man-Wook; Lee, Hyung; Park, Young-Ae

doi:10.1016/j.clinph.2011.05.029

Cited by 84 publications

(68 citation statements)

References 30 publications

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“…14 In contrast, patients with inferior vestibular neuritis have normal ocular VEMP and abnormal cervical VEMP induced by ACS. 14,18 This study supports the use of ocular and cervical VEMPs in determining each subtype of vestibular neuritis. The rotatory chair test has a limited diagnostic value in vestibular neuritis because whole-body rotation modulates the activities of both labyrinths simultaneously, which renders evaluation of unilateral vestibular dysfunction difficult.…”

Section: 28supporting

confidence: 50%

Cardiovascular Risk Factors in Total or Divisional Vestibular Neuritis

Na¹,

Lee²,

Sung³

et al. 2017

Res Vestib Sci

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Section: 28supporting

confidence: 50%

Cardiovascular Risk Factors in Total or Divisional Vestibular Neuritis

Na¹,

Lee²,

Sung³

et al. 2017

Res Vestib Sci

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“…Murofushi et al [22] showed that cVEMP is a test of the sacculocollic reflex to sound stimulation, which includes a reflex arc of the saccule, inferior vestibular nerve, and SCM muscle. In contrast, oVEMP recorded from the extraocular muscles is a test of the utriculo-ocular reflex to sound stimuli and has a reflex arc of the utricule, superior vestibular nerve, and extraocular muscles [23,24] .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Cervical Vestibular-Evoked Myogenic Potential Findings in Benign Paroxysmal Positional Vertigo

Karataş

Yüce²,

Cebi³

et al. 2016

Int Adv Otol

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OBJECTIVE:Although there has been a wide consensus on the mechanism of nystagmus and clinical presentation of benign paroxysmal positional vertigo (BPPV), the neuroepithelial pathophysiology of BPPV still remains unclear. In this study, we aimed to clarify the pathophysiology of BPPV by evaluating the cervical vestibular-evoked myogenic potential (cVEMP) findings of patients. MATERIALS and METHODS:Thirty-six BPPV patients and 20 healthy volunteers were included. Bilateral cVEMP tests were performed on all participants. The participants were divided into the following three groups: those with a BPPV-affected ear, those with a BPPV-unaffected ear, and the healthy control group. RESULTS:There were no significant differences regarding the latencies of the first positive (p1) and negative (n1) peaks among the three groups. The mean normalized amplitude asymmetry ratio also did not differ between the BPPV and control groups. However, the normalized amplitudes of the BPPV patients (with both affected and unaffected ears) were significantly lower than those of the healthy control group. CONCLUSION:We detected that the cVEMP data of the affected and unaffected ears of the BPPV patients was similar and that their normalized amplitudes significantly differed from those of the healthy controls. Eventually, we concluded that even if the symptoms of BPPV were unilateral, the findings suggest that the bilateral involvement of the macular neuroepithelium is important in understanding the pathophysiology of BPPV. This finding supports the conclusion that the pathophysiological process starts with neuroepithelial membrane degeneration and continues with otoconia separation.

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“…oVEMPs are usually abnormal in VN, regardless of whether AC or BC stimuli are used [13,14,51,16,52,15,53]. The oVEMP abnormalities are most often associated with deficits in superior nerve horizontal and anterior canal fibres, and so these studies provide evidence that oVEMPs are probably mediated by superior nerve otolith fibres (which are mainly utricular), at least for the stimuli that have been tested thus far.…”

Section: Vestibular Neuritismentioning

confidence: 79%

“…First, evidence from animal studies suggests that otolith afferents are preferentially activated by sound and vibration [11,12]. Second, patients with vestibular neuritis that appears to selectively affect the superior vestibular nerve typically have absent oVEMPs, suggesting that the reflex depends upon this nerve portion [13][14][15][16]. The superior vestibular nerve contains all utricular afferents, but only a small portion of saccular afferents.…”

Section: What Are Ovemps?mentioning

confidence: 99%