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Vestibular evoked myogenic potentials (VEMPs), the vestibular test that measures saccule and utricle function.

VEMPs (cervical and ocular) measure the otolith organs - saccule (cVEMP) and utricle (oVEMP) - the only vestibular test that reveals these. Foundation of vestibular migraine, Meniere’s and superior semicircular canal dehiscence (SSCD) workup.

A neuro-otologist performing a VEMP test in a private London clinic

Key facts

What a VEMP test is, in one glance.

Six anchor facts on the only routine test that reads saccule and utricle function.

  • Definition

    A short-latency evoked potential of the vestibular otolith organs - the only routine test that measures saccule and utricle function.

  • 30–45 minute test

    Bedside protocol with EMG electrodes, delivered in a quiet audiology suite.

  • Cervical (cVEMP) + ocular (oVEMP)

    cVEMP reads saccule via the inferior vestibular nerve; oVEMP reads utricle via the superior vestibular nerve.

  • Reveals otolith function

    Complements semicircular canal tests - the otolith limb of the labyrinth is otherwise invisible.

  • Complements vHIT and caloric

    Combined with video head impulse and caloric testing to map the full vestibular apparatus.

  • Foundation of SSCD workup

    A lowered cVEMP threshold is a diagnostic hallmark of superior semicircular canal dehiscence.

Indicative pricing

What private VEMP testing costs in London.

Indicative ranges across UK private providers.

In short

£450–£750, with thresholds discussed the same day.

Test type Indicative range
cVEMP (cervical) £280–£450
oVEMP (ocular) £280–£450
cVEMP + oVEMP bilateral £450–£750
VEMPs + vHIT combined £650–£950
Full vestibular battery (VEMPs + vHIT + caloric + SVV) £900–£1,500
VEMPs + neuro-otology consultation £650–£1,100

Prices vary by clinic, whether cVEMP and oVEMP are combined, and whether a same-visit neuro-otology opinion is included.

The problem

A VEMP result is only as good as who reports it.

Thresholds and asymmetry ratios are the answer - and the neuro-otologist interpreting them decides how those numbers translate into a diagnosis and next step. We route you to a specialist, not a generalist.

  • Suspected Meniere’s?

    We fold VEMPs into a full vestibular battery with audiometry and vHIT.

  • Vestibular migraine work-up?

    We rule out peripheral causes so migraine management can proceed with confidence.

What it shows

When VEMPs are the right test.

VEMPs answer a specific question - how are the otolith organs and their nerves behaving. These are the patterns we see most.

  • Absent cVEMP (saccular dysfunction)

    Loss of the cervical response points to saccule or inferior vestibular nerve dysfunction.

  • Absent oVEMP (utricular dysfunction)

    Loss of the ocular response points to utricle or superior vestibular nerve dysfunction.

  • Lowered threshold (SSCD)

    A pathologically low threshold is a hallmark of superior semicircular canal dehiscence.

  • Meniere’s pattern

    Characteristic amplitude and threshold changes support a Meniere’s diagnosis.

  • Vestibular neuritis pattern

    Selective superior or inferior nerve involvement helps localise the lesion.

  • Vestibular schwannoma pattern

    Asymmetric responses may raise suspicion and prompt MRI of the internal auditory meatus.

  • Post-labyrinthectomy loss

    Confirms surgical ablation of otolith function on the operated side.

  • Red flag: lowered threshold + Tullio phenomenon - urgent SSCD imaging

    Combine with high-resolution temporal-bone CT the same week.

Treatment options

What the result opens up.

The onward pathways VEMP findings most often trigger, from rehabilitation to surgery.

  • Vestibular rehabilitation

    Structured physiotherapy programme targeting central compensation and gaze stability.

  • Anti-migraine therapy

    Trigger avoidance plus prophylactic medication for vestibular migraine.

  • Diuretic + salt restriction (Meniere’s)

    First-line medical management to reduce endolymphatic pressure.

  • Intratympanic steroid

    Local dexamethasone for refractory Meniere’s or sudden vestibular loss.

  • Intratympanic gentamicin

    Chemical labyrinthectomy for disabling unilateral Meniere’s vertigo.

  • SSCD surgical repair

    Middle-fossa or transmastoid plugging or resurfacing for confirmed dehiscence.

  • ENT / neuro-otology referral

    Onward specialist review for surgical candidates and complex diagnoses.

  • MDT review

    Coordinated audiology, ENT, neurology and radiology decision-making.

Red flags

When VEMPs matter most.

The presentations where a VEMP result changes the pathway - the ones we watch for and expedite.

  • SSCD with Tullio phenomenon

    Sound- or pressure-induced vertigo with a lowered cVEMP threshold - urgent CT temporal bones.

  • Meniere’s with drop attacks

    Sudden unprovoked falls (Tumarkin) demand urgent neuro-otology review.

  • Vestibular schwannoma

    Asymmetric VEMPs with unilateral hearing loss - MRI internal auditory meatus.

  • Post-labyrinthectomy vertigo

    Ongoing instability after ablative surgery - reassess central compensation.

  • Persistent postural-perceptual dizziness

    PPPD - vestibular rehabilitation and cognitive-behavioural pathway.

  • Post-concussion syndrome

    VEMPs help distinguish peripheral from central post-traumatic dizziness.

  • Post-COVID vestibular dysfunction

    Emerging pattern of otolith involvement after SARS-CoV-2 infection.

  • Bilateral vestibulopathy

    Absent VEMPs bilaterally - consider ototoxicity and autoimmune causes.

  • Cerebellar disease

    Central signs on examination - MRI brain and neurology referral take priority.

Reading your report

A VEMP report can look intimidating. It isn’t.

Whatever the finding, the report keeps to the same four parts.

A consultant neuro-otologist reviewing VEMP tracings on a clinical workstation at a UK private clinic

A quiet reminder

The report is written for your doctor, not for you - and that’s normal.

If you would like us to talk you through it before your follow-up, just ask.

  1. 01 Header

    Indication and clinical background

    Your details, the vertigo pattern, and the vestibular risk factors that shape interpretation.

  2. 02 Technique

    Stimulus, electrodes and EMG normalisation

    Which stimuli were used, electrode montage, and how EMG amplitude was normalised.

  3. 03 Findings

    Thresholds, amplitudes and asymmetry ratios

    Side-by-side cVEMP and oVEMP values with interaural asymmetry ratios.

  4. 04 Impression

    The conclusion: read this first

    Normal, saccular or utricular loss, SSCD pattern, and the concrete next step - read this first.

Recognised by major UK insurers

BupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealix

Frequently asked

Everything we get asked about VEMPs.

Quick answers on what the test measures, cVEMP vs oVEMP, cost, referrals, safety and turnaround.

  • What do VEMPs actually measure?

    VEMPs measure the function of the otolith organs - the saccule (via cVEMP) and utricle (via oVEMP). They are the only routine vestibular test that reads these two organs, which sit alongside the semicircular canals in the inner ear.

  • What is the difference between cVEMP and oVEMP?

    cVEMP is recorded from the sternocleidomastoid muscle and reflects saccule and inferior vestibular nerve function. oVEMP is recorded from the inferior oblique muscle just below the eye and reflects utricle and superior vestibular nerve function. A full otolith assessment needs both.

  • Do I need a referral for VEMPs?

    Most clinics accept self-referral for vestibular testing.

  • Are VEMPs safe if I have hearing loss?

    Yes - the test uses short tone bursts and is safe. If there is severe conductive hearing loss, bone-conducted stimuli may be used instead of air-conducted, and the neuro-otologist will adapt the protocol accordingly.

  • How quickly will I get results?

    Thresholds and asymmetry ratios can usually be discussed immediately after the test, with a formal written report from the reporting neuro-otologist within 24–48 hours.

Sources

Guidance this page is built on.

Reviewed 2026-07-30 by Pulse Atlas Editorial Board, . Next review 2027-07-30. Reading time ~4 min.

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Looking for a different test?

In practice, in London

Where vestibular evoked myogenic potentials sits in a private London pathway

With vestibular evoked myogenic potentials, the London question is usually about report turnaround and the radiologist reading it - not whether the scan is available. The NHS route for vestibular evoked myogenic potentials is thorough, but the queue is real. Most patients we speak with have been told to expect anywhere from a handful of weeks to several months, depending on their local trust and how the referral is graded. Going private in London usually collapses that window to a matter of days - often the same week if the diary allows. It isn’t about jumping a queue so much as buying time back while you still have the flexibility to plan around it.

The mechanics are straightforward: a consultant appointment, any tests done at a nearby CQC-registered site, and a written report back within a few days. London’s density of private diagnostics - Marylebone, the City, Chelsea, Canary Wharf - means most patients can find something that fits around work without a cross-town trek. For vestibular evoked myogenic potentials specifically, the difference between a routine report and a sub-speciality read is where private care earns its keep.

There are dozens of consultants in London who see vestibular evoked myogenic potentials - but not all of them are the right fit for every case. The right first appointment saves you from repeating yourself later.