Rotational vertebral artery occlusion syndrome with vertigo due to "labyrinthine excitation".
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.
Strupp
M
M
Department of Neurology, Klinikum Grosshadern, Ludwig-Maximilians University, Munich, Germany.
Planck
J H
JH
Arbusow
V
V
Steiger
H J
HJ
Brückmann
H
H
Brandt
T
T
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*