How does Meniere's disease present?

Clinical Presentation of Ménière's Disease

Ménière's disease presents with a classic tetrad of spontaneous rotational vertigo attacks lasting 20 minutes to 12 hours, fluctuating low- to mid-frequency sensorineural hearing loss, tinnitus, and aural fullness in the affected ear. 1

Diagnostic Criteria for Definite Ménière's Disease

The American Academy of Otolaryngology-Head and Neck Surgery established specific diagnostic criteria that must all be present 1:

• Two or more spontaneous vertigo attacks, each lasting 20 minutes to 12 hours 1
• Audiometrically documented fluctuating low- to mid-frequency sensorineural hearing loss in the affected ear on at least one occasion before, during, or after one of the vertigo episodes 1
• Fluctuating aural symptoms (hearing loss, tinnitus, or fullness) in the affected ear 1

Core Vestibular Symptoms

Vertigo Characteristics

• True rotational vertigo is the hallmark symptom, defined as a sensation of self-motion (rotary spinning) or movement of the environment when neither is occurring 1
• Episodes are spontaneous and unpredictable, lasting specifically 20 minutes to 12 hours 1
• Vertigo attacks occur with some regularity during active disease periods 1
• Ictal nystagmus (during attacks) is predominantly horizontal and of high velocity (mean 48 ± 34°/s) in 90% of documented cases 2

Imbalance and Disequilibrium

• Imbalance (sense of unsteadiness or instability) is discrete from vertigo and may be ongoing rather than episodic 1
• Disequilibrium can be an atypical presenting symptom, occurring in approximately 13% of patients 2

Auditory Symptoms

Hearing Loss Pattern

• Low- to mid-frequency sensorineural hearing loss is characteristic and must be documented audiometrically 1
• Hearing loss fluctuates initially but over time may involve all frequencies 1
• Mean pure-tone average in affected ears is approximately 50 dB (± 23.5 dB) compared to 20 dB (± 13 dB) in unaffected ears 2
• Hearing may worsen, persist, or stabilize over time 1

Tinnitus and Aural Fullness

• Tinnitus (ringing in the ear) fluctuates with disease activity 1
• Aural fullness or pressure in the affected ear is a defining symptom 1
• These symptoms fluctuate in intensity, often worsening before or during vertigo attacks 1

Atypical Presentations

Ménière's disease can present with non-classic symptoms that complicate diagnosis 2:

• Drop attacks (Tumarkin's otolithic crisis): Sudden falls without warning or loss of consciousness, typically occurring in later disease stages (3.2% of patients) 1, 2
• Rocking vertigo rather than rotational spinning 2
• Unexplained vomiting without clear vertigo 2
• Fluctuation of aural symptoms only without vertigo (46% of patients initially) 2
• Persistent positional nystagmus (12.5% of patients) 2

Physical Examination Findings

Interictal Period (Between Attacks)

• Physical examination is often unremarkable between episodes 1
• Low-velocity spontaneous nystagmus may be present in 13.3% of patients interictally 2
• Conventional imaging is typically normal if performed 1

During Acute Attacks

• High-velocity horizontal nystagmus is characteristic (93% horizontal, mean velocity 48°/s) 2
• Patients appear acutely ill with severe vertigo and often nausea/vomiting 1

Vestibular Function Testing Abnormalities

When vestibular testing is performed, the following patterns emerge 2:

• Caloric testing abnormalities in 69.6% of patients (canal paresis) 2
• Abnormal cervical vestibular-evoked myogenic potentials (VEMPs) in 32.2% (mean asymmetry ratio 30.2 ± 46.5%) 2
• Video head impulse test abnormalities in only 12.7% of patients 2
• Abnormal subjective visual horizontal in 30.6% (both ipsiversive and contraversive) 2
• Bone-conducted ocular VEMPs abnormal in 8.8% 2

Associated Comorbidities

The "extended phenotype" of Ménière's disease includes 3:

• Migraine headaches (31.2% of patients) 2
• Anxiety disorders 3
• Autoimmune and autoinflammatory conditions 3

Age and Natural History

• Adult-onset disorder, most commonly presenting between ages 40-70 years 1
• Vertigo attacks and aural symptom fluctuations are sporadic and unpredictable 1
• Residual or permanent inner ear balance loss may develop, requiring long-term vestibular rehabilitation 1

Common Diagnostic Pitfalls

Important caveats to avoid misdiagnosis 1, 2:

• Normal vestibular function and hearing do not exclude Ménière's disease, particularly in early presentations 2
• Atypical presentations without spontaneous vestibular symptoms occur in 21.6% of patients 2
• Distinguishing between asymptomatic periods and treatment effects is challenging 1
• Placebo response rates up to 60% have been documented in clinical trials, complicating assessment 1
• Elderly patients or those with long-standing disease may not manifest typical temporal patterns and may present with vague dizziness or severe imbalance rather than classic vertigo 1