VEMP
Also written as: VEMP — Vestibular Evoked Myogenic Potential
Vestibular evoked myogenic potential; a neurophysiological test assessing vestibular organ and pathway function through muscle responses.
Full Definition
Vestibular evoked myogenic potentials (VEMP) are electrophysiological responses recorded from muscles following acoustic or galvanic stimulation of the vestibular system. This test evaluates the integrity of the otolith organs (saccule and utricle) and their neural pathways. VEMP testing includes cervical VEMP (cVEMP) recorded from neck muscles and ocular VEMP (oVEMP) recorded from extraocular muscles, providing valuable diagnostic information for vestibular disorders, superior semicircular canal dehiscence, and Ménière's disease.
Usage
Usage note: Distinguish between cVEMP (cervical) and oVEMP (ocular) variants.
In Context
- "VEMP testing revealed absent responses bilaterally, suggesting vestibular areflexia." — Vestibular assessment report
- "Cervical VEMP thresholds were elevated on the affected side in this patient with Ménière's disease." — Diagnostic study