BPPV: Diagnosis and Treatment
For posterior canal BPPV, perform the Dix-Hallpike maneuver to diagnose, then immediately treat with a canalith repositioning procedure (Epley or Semont maneuver)—do not use vestibular suppressant medications or order imaging studies in uncomplicated cases. 1
Diagnostic Approach
Posterior Canal BPPV (85-95% of cases)
Perform the Dix-Hallpike maneuver: Bring the patient from upright to supine with head turned 45° to one side and neck extended 20°, affected ear down. A positive test shows torsional, upbeating nystagmus with vertigo. Repeat on the opposite side if initially negative. 1, 2
Lateral (Horizontal) Canal BPPV (5-15% of cases)
If the Dix-Hallpike shows horizontal or no nystagmus but history suggests BPPV, perform the supine roll test to assess for lateral canal involvement. 2
Key Diagnostic Pitfalls
- Vestibular agnosia in older adults: Many elderly patients with BPPV report vague unsteadiness rather than classic vertigo, or may be completely asymptomatic. Screen all adults >60 years with balance problems regardless of whether they report vertigo. 3
- Cupulolithiasis vs canalolithiasis: Watch for minimal latency and lack of fatigability, which suggest cupulolithiasis—particularly important in vertical canal variants. 4
- Anterior canal BPPV: Presents with predominantly down-beating nystagmus with minimal torsional component. 4
What NOT to Do
The guidelines make strong recommendations against three common practices:
- No routine imaging: Do not order CT or MRI in patients meeting BPPV criteria unless additional signs/symptoms suggest central pathology. 1, 2
- No vestibular testing: Do not order ENG, VNG, or other vestibular tests in straightforward BPPV without additional concerning features. 1, 2
- No vestibular suppressants: Do not routinely prescribe antihistamines (meclizine) or benzodiazepines—these medications do not treat the underlying problem and may impair compensation. 1, 2
Treatment Algorithm
First-Line Treatment: Canalith Repositioning Procedure
Immediately perform a canalith repositioning maneuver (Epley or Semont) for posterior canal BPPV—this is a strong recommendation with level 1 evidence. 1, 5, 6 Both maneuvers have comparable efficacy; choose based on your experience and patient mobility limitations.
Critical point: Do NOT recommend postural restrictions after the procedure (no sleeping upright, no head movement restrictions)—this is a strong recommendation against as restrictions provide no additional benefit. 1, 2
Alternative: Observation
You may offer observation with follow-up for 1 week as initial management, as BPPV is self-limited. 6 However, given the high success rate of repositioning maneuvers and immediate symptom relief, active treatment is generally preferred for quality of life.
Adjunctive Options
- Vestibular rehabilitation: May offer self-administered or clinician-guided exercises, particularly useful for residual dizziness or recurrent cases. 1, 2
- Mastoid vibration during CRP: No additional benefit demonstrated. 6
Treatment-Resistant Cases
For intractable BPPV after multiple repositioning attempts:
- Reassess the diagnosis—consider multiple canal involvement, cupulolithiasis variants, or central pathology
- Evaluate for comorbidities: migraine, persistent postural-perceptual dizziness (PPPD)
- Check vitamin D levels—supplementation reduces recurrence in deficient patients 6
- Surgical canal plugging is effective for truly intractable same-canal, same-side BPPV 5, 6
Modifying Factors to Assess
Evaluate for factors requiring modified management approach: 2
- Impaired mobility or balance
- Central nervous system disorders
- Lack of home support
- Increased fall risk (particularly in elderly)
Follow-Up Protocol
Reassess within 1 month after initial treatment or observation to document symptom resolution or persistence. 2
If symptoms persist, evaluate for:
- Unresolved BPPV (wrong canal diagnosed, incomplete treatment)
- Other peripheral vestibular disorders
- Central nervous system pathology 2
Patient Education
Educate patients on: 2
- Fall risk and safety precautions
- High likelihood of recurrence (up to 50% at 5 years)
- Importance of follow-up
- Self-treatment options for recurrences
Risk Factors for Development/Recurrence
- Female sex
- Low vitamin D/osteoporosis (consider supplementation)
- Migraine
- Head trauma
- High cholesterol 6