Rotational vertebral artery occlusion syndrome with vertigo due to "labyrinthine excitation".
- ISSN: 0028-3878
- ISBN: 0028-3878 (Print) 0028-3878 (Linking)
- DOI: 10.1212/WNL.54.6.1376
- PubMed: 10746615
Leftward head rotations in a patient with a rotational vertebral artery occlusion syndrome elicited recurrent uniform attacks of severe rotatory vertigo and tinnitus in the right ear. These attacks were accompanied by a mixed clockwise torsional downbeat nystagmus with a horizontal component toward the right. A transient ischemia of the right labyrinth probably induced the attacks and led to a combined transient excitation of the right anterior and horizontal semicircular canals as well as the cochlea.