title: Rotational vertebral artery occlusion syndrome with vertigo due to "labyrinthine excitation".
abstract: 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.
authors.affiliation: Department of Neurology, Klinikum Grosshadern, Ludwig-Maximilians University, Munich, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Strupp
authors.forename: J H
authors.initials: JH
authors.lastname: Planck
authors.forename: V
authors.initials: V
authors.lastname: Arbusow
authors.forename: H J
authors.initials: HJ
authors.lastname: Steiger
authors.forename: H
authors.initials: H
authors.lastname: Brückmann
authors.forename: T
authors.initials: T
authors.lastname: Brandt
mesh_terms: D015901:Angiography, Digital Subtraction; D006801:Humans; D007759:Labyrinth Diseases / Q000150:complications*; D008297:Male; D008875:Middle Aged; D013577:Syndrome; D014711:Vertebral Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014715:Vertebrobasilar Insufficiency / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D014717:Vertigo / Q000209:etiology*