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Ocular Vestibular Evoked Myogenic Potentials: Where Are We Now?

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Objective:

Over the last decade, ocular vestibular evoked myogenic potentials (oVEMPs) have evolved as a new clinical test for dynamic otolith (predominantly utricular) function. The aim of this review is to give an update on the neurophysiological foundations of oVEMPs and their implications for recording and interpreting oVEMP responses in clinical practice.Conclusion:

Different lines of anatomical, neurophysiological, and clinical evidence support the notion that oVEMPs measure predominantly contralateral utricular function, while cervical cVEMPs are an indicator of ipsilateral saccular function. Bone-conducted vibration (BCV) in the midline of the forehead at the hairline (Fz) or unilateral air-conducted sound (ACS) are commonly used as stimuli for oVEMPs. It is recommended to apply short stimuli with short rise times for obtaining optimal oVEMP responses. Finally, this review summarizes the clinical application and interpretation of oVEMPs, particularly for vestibular neuritis, Ménière's disease, superior canal dehiscence and “challenging” patients.
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Keywords: Air-conducted sound; Bone-conducted vibration; Ocular vestibular evoked myogenic potentials; Superior canal dehiscence; Utricle

Document Type: Research Article

Affiliations: Saarland University Medical Center, Department of Otorhinolaryngology, Homburg/Saar, Germany

Publication date: December 1, 2017

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