Overview
Definition
Brief episodes of vertigo triggered by head position changes.
Epidemiology
Varies globally. Often age and lifestyle dependent.
Etiology & Risk Factors
- Otoconia (calcium crystals) in the semicircular canals.
Clinical Symptoms
- Sudden severe vertigo lasting <1 minute
- provoked by looking up or rolling over.
Clinical Approach
Diagnosis
- Dix-Hallpike maneuver.
Management
- Epley maneuver (canalith repositioning).
Complications
- Falls
- injuries.