Ménière's Disease
The most likely cause of this 56-year-old male's episodic vertigo lasting several hours with fluctuating hearing loss and ear fullness is Ménière's disease (MD).
Clinical Presentation Matches Definite Ménière's Disease
This patient's presentation is classic for MD based on the 2020 American Academy of Otolaryngology-Head and Neck Surgery guidelines 1. The diagnostic criteria for definite MD require:
- Two or more spontaneous vertigo attacks, each lasting 20 minutes to 12 hours - This patient has recurrent episodes lasting "several hours," which fits perfectly within this timeframe
- Audiometrically documented fluctuating low- to mid-frequency sensorineural hearing loss in the affected ear
- Fluctuating aural symptoms (hearing loss, tinnitus, or fullness) in the affected ear - This patient has both hearing loss and ear fullness that "gradually improve"
The patient's description of "room spinning" represents true rotatory vertigo, which is the hallmark vestibular symptom of MD 1. The fluctuating nature of symptoms with gradual improvement between attacks is pathognomonic for this condition 2.
Underlying Pathophysiology
MD is associated with endolymphatic hydrops - excessive accumulation of endolymph fluid in the inner ear that causes episodic damage to ganglion cells 2. This explains the fluctuating nature of symptoms, as the fluid accumulation varies over time. Physical examination findings are typically unremarkable between attacks 1.
Diagnostic Workup Required
To confirm definite MD, you must:
- Obtain formal audiometry to document low- to mid-frequency sensorineural hearing loss during or after an attack 1
- The hearing loss pattern typically affects frequencies below 2000 Hz initially but may involve all frequencies over time 1
- Physical examination during an acute attack may reveal spontaneous nystagmus, but between attacks findings are usually normal
Critical Differential: Vestibular Migraine
Important caveat: The guidelines strongly recommend assessing for vestibular migraine (VM) when evaluating suspected MD, as VM can closely mimic MD 1. VM was recognized in Prosper Ménière's original 1861 writings and is now officially classified in the International Headache Society's criteria 1. Key distinguishing features:
- VM attacks typically last 5 minutes to 72 hours (broader range than MD's 20 minutes to 12 hours)
- VM patients often have migraine history with photophobia, phonophobia, or visual aura
- VM does not typically cause progressive hearing loss
- Both conditions can coexist with high frequency 3
Next Steps
- Obtain audiometry to document the characteristic low- to mid-frequency sensorineural hearing loss
- Screen for migraine history using International Headache Society criteria to rule out VM 1
- Consider MRI with contrast of internal auditory canals to exclude vestibular schwannoma, autoimmune inner ear disease, or other structural lesions 3
- Vestibular function testing (caloric testing, VEMP) can support the diagnosis but are not required for definite MD 1
The diagnosis of MD is fundamentally clinical and based on the characteristic symptom pattern described above 1, 4. Gadolinium-enhanced MRI can now directly visualize endolymphatic hydrops but is transitioning from research to clinical use 2.