Treatment of Vertigo
The Canalith Repositioning Procedure (Epley maneuver) is the treatment of choice for the most common cause of vertigo—benign paroxysmal positional vertigo (BPPV)—with success rates of 90-98%, and vestibular suppressant medications should NOT be routinely used. 1, 2
Diagnosis-Driven Treatment Algorithm
The treatment of vertigo depends entirely on identifying the underlying cause, as vertigo is a symptom, not a disease. 3
For BPPV (Most Common Cause)
First, confirm the diagnosis and canal involved:
- Perform the Dix-Hallpike maneuver to diagnose posterior canal BPPV (most common subtype) 1, 2
- Perform the supine roll test to diagnose lateral canal BPPV 1, 2
Treatment based on canal involvement:
Posterior Canal BPPV:
- Perform the Epley maneuver immediately as first-line treatment with the following sequence: 1, 2
- Success rate: 90-98% when performed correctly 1, 2
- Post-procedural restrictions are NOT necessary 2
Lateral Canal BPPV:
Critical Management Points:
- Do NOT prescribe vestibular suppressants (antihistamines, benzodiazepines) as primary treatment 4, 2, 5
- Meclizine may only be considered for short-term management of severe nausea/vomiting, NOT for treating the vertigo itself 2, 5, 6
- Reassess within 1 month to confirm symptom resolution 1, 2, 5
For Treatment Failures or Persistent Symptoms
If symptoms persist after initial Epley maneuver:
- Re-evaluate for canal conversion (occurs in ~6% of cases) and treat the newly affected canal 1, 2, 5
- Assess for multiple canal involvement 1
- Consider coexisting vestibular conditions or central nervous system disorders 2, 5
- For refractory cases after multiple repositioning attempts, surgical canal plugging has >96% success rates 2
Alternative Treatment: Vestibular Rehabilitation Therapy (VRT)
When to consider VRT:
- For persistent dizziness from vestibular causes after repositioning maneuvers 5
- As an adjunctive or alternative option for BPPV, though initially less effective than repositioning maneuvers 1
- Particularly beneficial for elderly patients to decrease recurrence rates 1
VRT Protocol:
- Implement Cawthorne-Cooksey exercises (eye, head, and body movements in increasing difficulty) performed until symptoms fatigue 1
- For BPPV specifically, Brandt-Daroff exercises involve rapid lateral head/trunk tilts, though these are significantly less effective than Epley maneuver (25% vs 80.5% resolution at 7 days) 2
- Home-based therapy is equally effective as clinician-supervised therapy 1
- VRT is safe with no serious adverse events reported 1
For Other Causes of Vertigo
Ménière's Disease:
- Salt restriction and diuretics for long-term management 5
- Short-term vestibular suppressants only during acute attacks 5
- Treatment goals: reduce severity/frequency of attacks, relieve symptoms, improve quality of life 1
- Non-ablative procedures preferred for patients with usable hearing 1
Acute Vestibular Neuronitis/Labyrinthitis:
- Initial stabilizing measures with vestibular suppressant medication 3
- Follow with vestibular rehabilitation exercises 3
Vertiginous Migraine:
- Dietary changes, tricyclic antidepressant, and beta blocker or calcium channel blocker 3
Common Pitfalls to Avoid
- Relying on medications instead of repositioning maneuvers for BPPV 2
- Failing to reassess patients after initial treatment 2
- Missing canal conversions or multiple canal involvement 2
- Using vestibular suppressants in elderly patients without considering increased fall risk, drowsiness, and cognitive deficits 5
Why Vestibular Suppressants Should Be Avoided in BPPV
The evidence strongly recommends against routine use of vestibular suppressants (benzodiazepines like diazepam/clonazepam, antihistamines like meclizine/diphenhydramine) because: 4
- They do not address the underlying mechanical cause of BPPV 5
- They interfere with central compensation in peripheral vestibular conditions 4
- They only reduce subjective spinning sensation without resolving the condition 4
- Observation alone (mean 39 days to spontaneous resolution) is preferable to medication use 4
The FDA-approved indication for meclizine is for vertigo associated with vestibular system diseases, but guideline evidence clearly shows it should not be routinely used for BPPV. 6