Vertigo caused by the presence of otoliths in the semi-circular canal instead of the utricle; most common cause of vertigo on looking up
Aetiology
- Head trauma
- Ear surgery
- Idiopathic
Pathophysiology
- Once in the canal, movement of the patient’s head will result movement of the otoliths, causing an abnormal movement of endolymph which results in vertigo
Clinical presentation
Vertigo on:
- Looking up
- Turning in bed - often worse to one side
- First lying down in bed at night
- Getting out of bed in the morning
- Bending forward
- Rising from bending
- Moving head quickly - often only in one direction
- Attacks will last seconds
Other symptoms
- Nausea and vomiting
Investigations
- The diagnostic examination for BPPV is the Dix-Hallpike manoeuvre, with a positive test invoking the symptoms and geotropic, tortional nystagmus will be present
Management
Treatment is with repositioning manoeuvres:
- Epley manoeuvre
- Selmont manoeuvre
- Brandt-Daroff exercises