[Episodic vestibular syndrome].

Dizziness and vertigo are frequent symptoms in the primary care facility and emergency departments. Episodic vestibular syndrome (EVS) is defined as episodic dizziness, vertigo or postural imbalance with remission between episodes. EVS can be divided into spontaneous (s-EVS) and triggered EVS (t-EVS). Causes of s-EVS are vestibular migraine, Menière's disease, transient ischaemic attack and vestibular paroxysmia. Causes of t-EVS are benign paroxysmal positionel vertigo, orthostatic hypotension and panick attacks. In this review, we recommend using vestibular syndromes in order to reduce the number of differential diagnoses.