Investigations in Ménière's Disease
Audiometry is the only investigation that should be routinely obtained when assessing a patient for Ménière's disease, while vestibular function testing, electrocochleography, and imaging should NOT be routinely ordered to establish the diagnosis. 1
Essential Investigation
Audiogram (Required)
- Clinicians must obtain an audiogram when assessing any patient for suspected Ménière's disease 1
- Look specifically for low- to mid-frequency sensorineural hearing loss that may fluctuate 1
- The hearing loss must be audiometrically documented in the affected ear on at least one occasion before, during, or after a vertigo episode to meet diagnostic criteria for definite Ménière's disease 1
- Serial audiograms during follow-up help track disease progression and inform therapeutic decisions 1
Investigations That Should NOT Be Routinely Ordered
Vestibular Function Testing (NOT Recommended Routinely)
- Do not routinely order vestibular function testing (VNG with caloric testing, rotary chair, video head impulse testing, cVEMP, oVEMP) to establish the diagnosis 1
- These tests assess vestibular system integrity but results fluctuate throughout the disease course and correlate poorly with patient-perceived disability 1
- Ménière's disease remains a clinical diagnosis based on patient-reported symptoms and audiometric data, not vestibular testing 1
- Unnecessary testing causes delays in diagnosis, increased costs, patient burden from unpleasant procedures, and potential morbidity 1
- Some patients meeting diagnostic criteria have completely normal vestibular testing, which does not rule out Ménière's disease 1
Electrocochleography (NOT Recommended Routinely)
- Do not routinely order electrocochleography (ECochG) to establish the diagnosis 1
- While ECochG measures cochlear electrical responses, it lacks sufficient sensitivity and specificity for routine diagnostic use 1
- No high-quality evidence supports its routine use, and it is not included in diagnostic criteria 1
- Research confirms that electrophysiological tests including ECochG cannot be considered pathognomonic for Ménière's disease and serve only a supportive role 2
Selective Imaging (Only in Specific Circumstances)
MRI of Internal Auditory Canal and Posterior Fossa
- May offer MRI only in patients with NON-fluctuating sensorineural hearing loss, tinnitus, or pressure in the affected ear when symptoms are not better explained by another disorder 1
- The key distinction: MRI is considered when hearing loss is non-fluctuating (to rule out vestibular schwannoma or other retrocochlear pathology), not for typical fluctuating symptoms of Ménière's disease 1
- Conventional imaging in typical Ménière's disease is usually normal 1
- Primary rationale is to exclude vestibular schwannoma when the clinical picture is atypical 1
Important Clinical Pitfalls
Common Diagnostic Errors to Avoid
- Do not delay diagnosis waiting for vestibular testing or ECochG results - these are not required and cause unnecessary treatment delays 1
- Do not order MRI routinely - it is only indicated for atypical presentations with non-fluctuating hearing loss 1
- Do not rely on physical examination findings - these are typically unremarkable in Ménière's disease 1
- Remember that up to 60% of placebo-treated patients show vertigo improvement in trials, making clinical assessment challenging 1
When Additional Testing May Be Considered
While not routine, vestibular testing or ECochG may have a role in individualized patients for specific clinical scenarios not covered by standard diagnostic criteria 1
Diagnostic Algorithm
Obtain detailed clinical history focusing on:
Perform audiometry (the only required test) looking for low- to mid-frequency sensorineural hearing loss 1
If hearing loss is fluctuating and clinical criteria are met: Diagnose Ménière's disease without further testing 1
If hearing loss is non-fluctuating or presentation is atypical: Consider MRI to exclude alternative diagnoses 1
Do not order vestibular testing or ECochG for routine diagnosis 1