Skull vibration induced nystagmus in patients with superior semicircular canal dehiscence

ConclusionSVIN reveals instantaneously in unilateral semi-circular canal dehiscences a characteristic nystagmus beating, for the torsional and horizontal components, toward the lesion side and with a greater sensitivity toward high frequencies on vertex stimulation. SVIN three components analysis suggests a stimulation of both superior semi-circular canal and utricle. SVIN acts as a vestibular Weber test, assessing a vestibular asymmetrical function and is a useful indicator for unilateral semi-circular canal dehiscence.

Source: European Annals of Otorhinolaryngology, Head and Neck Diseases - April 25, 2019 Category: ENT & OMF Source Type: research