posicional

Diagnostic Criteria for Benign Paroxysmal Positional Vertigo Vertigo associated with a characteristic mixed torsional and vertical nystagmus provoked by the Dix-Hallpike test A latency (typically of 1 to 2 seconds) between the completion of the Dix-Hallpike test and the onset of vertigo and nystagmus Paroxysmal nature of the provoked vertigo and nystagmus (i.e., an increase … Read more