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Neurology 2001;56:684-686
© 2001 American Academy of Neurology
Brief Communications

Continuous vertigo and spontaneous nystagmus due to canalolithiasis of the horizontal canal

Michael von Brevern, MD;, Andrew H. Clarke, PhD; and Thomas Lempert, MD

From Neurologische Klinik Charité (Drs. von Brevern and Lempert), Campus Virchow-Klinikum Berlin; and Abteilung für Hals-Nasen-Ohren-Heilkunde (Dr. Clarke), Klinikum Benjamin Franklin, Berlin, Germany.

Address correspondence and reprint requests to Dr. Michael von Brevern, Neurologische Klinik, Charité, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany; e-mail: michael.von_brevern{at}charite.de

The authors present a patient with benign paroxysmal positional vertigo of the right horizontal semicircular canal who developed persistent vertigo with spontaneous horizontal nystagmus to the left and caloric hypoexcitability on the right after a head shaking maneuver. Both spontaneous nystagmus and canal paresis resolved after repeated shaking of the head. The most probable mechanism of this type of vertigo is plugging of the horizontal canal by otoconial particles with a negative endolymph pressure between plug and cupula.




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R. J. Leigh, M. von Brevern, A. H. Clarke, and T. Lempert
Continuous vertigo and spontaneous nystagmus due to canalolithiasis of the horizontal canal
Neurology, August 28, 2001; 57(4): 745 - 746.
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Nystagmus with canalith jam
R John Leigh
Neurology Online, 10 Apr 2001 [Full text]
Reply from the authors
Michael von Brevern, et al.
Neurology Online, 10 Apr 2001 [Full text]

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