Sudden Sensorineural Hearing Loss With Simultaneous Positional Vertigo Showing Persistent Geotropic Direction-Changing Positional Nystagmus

Abstract

A light cupula mechanism may be one of the causes of positional vertigo in patients with SSNHL. In these cases, persistent geotropic DCPN is observed in the supine head-roll test and the null plane can be identified on the same side as the hearing loss.