Table 1

 Diagnostic criteria for vestibular vertigo and benign paroxysmal positional vertigo

Vestibular vertigo (one criterion has to be fulfilled)
    (1) Spontaneous rotational vertigo
    (2) Positional vertigo
    (3) Recurrent dizziness with nausea and either oscillopsia or imbalance
Benign paroxysmal positional vertigo (A–D have to be fulfilled)
    (A) Recurrent vestibular vertigo
    (B) Duration of an attack always <1 min
    (C) Symptoms invariably provoked by the following changes of head position:
        Lying down or
        Turning over in the supine position
        or at least 2 of the following manoeuvres:
         Reclining the head
         Rising up from supine position
         Bending forward
(D) Not attributable to another disorder