Skull vibration induced nystagmus test in Ménière's disease

Dumas, Georges; Fabre, Christol; Perottino, Flavio; Tan, Haisong; Proy, Patrick; Schmerber, S.

doi:10.23736/s0392-6621.20.02320-6

Cited by 1 publication

(1 citation statement)

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“…In larger series of non-operated MD, it was demonstrated that SVIN may be observed in 59% to 66% of cases [ 24 , 25 ] and usually shows a low SPV < 4°/s (3.89 ± 3.9°/s) [ 25 ].…”

Section: Discussionmentioning

confidence: 99%

Skull Vibration-Induced Nystagmus Test in a Human Model of Horizontal Canal Plugging

et al. 2021

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Background/Aim: the aim of this study was to assess the skull vibration-induced nystagmus test (SVINT) results and vestibular residual function after horizontal semicircular canal (HSCC) plugging. Methods: In this retrospective chart review performed in a tertiary referral center, 11 patients who underwent unilateral horizontal semicircular canal plugging (uHSCCP) for disabling Menière’s disease (MD) were included. The skull vibration-induced nystagmus (SVIN) slow-phase velocity (SPV) was compared with the results of the caloric test (CaT), video head impulse test (VHIT), and cervical vestibular-evoked myogenic potentials (cVEMP) performed on the same day. Results: Overall, 10 patients had a strong SVIN beating toward the intact side (Horizontal SVIN-SPV: 8.8°/s ± 5.6°/s), 10 had a significant or severe ipsilateral CaT hypofunction, 10 had an ipsilateral horizontal VHIT gain impairment, and 3 had altered cVEMP on the operated side. Five had sensorineural hearing worsening. SVIN-positive results were correlated with CaT and horizontal VHIT (HVHIT) results (p < 0.05) but not with cVEMP. SVIN-SPV was correlated with CaT hypofunction in % (p < 0.05). Comparison of pre- and postoperative CaT % hypofunction showed a significant worsening (p = 0.028). Conclusion: SVINT results in a human model of horizontal canal plugging are well correlated with vestibular tests exploring horizontal canal function, but not with cVEMP. SVINT always showed a strong lesional nystagmus beating away from the lesion side. SVIN acts as a good marker of HSCC function. This surgical technique showed invasiveness regarding horizontal canal vestibular function.

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“…In larger series of non-operated MD, it was demonstrated that SVIN may be observed in 59% to 66% of cases [ 24 , 25 ] and usually shows a low SPV < 4°/s (3.89 ± 3.9°/s) [ 25 ].…”

Section: Discussionmentioning

confidence: 99%