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Perilymph fistula associated with pulse-synchronous eye oscillations

From the Departments of Neurology (Drs. Rambold, Heide, Sprenger, and Helmchen) and Neuroradiology (Dr. Haendler), Medical University of Lübeck, Germany.

Address correspondence and reprint requests to Dr. Holger Rambold, Department of Neurology, Medical University Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany; e-mail: rambold_h{at}neuro.mu-luebeck.de

Three-dimensional eye movements (scleral search coil system) were recorded in a patient with a surgically acquired perilymph fistula of the left horizontal semicircular canal. Spontaneous horizontal pendular nystagmus was found to be related to the heart rate and may be caused by pressure transfer of blood pulses to the labyrinth. In addition, a contralesional horizontal jerk nystagmus was elicited by Valsalva maneuver, indicating that Ewald’s first law may not only be valid for excitation but also for inhibition.

This article has been cited by other articles:

				C Helmchen, E Gehrking, S Gottschalk, and H Rambold Persistence of perilymph fistula mechanism in a completely paretic posterior semicircular canal J. Neurol. Neurosurg. Psychiatry, February 1, 2005; 76(2): 280 - 282. [Abstract] [Full Text] [PDF]

				C. Helmchen, A. Hagenow, J. Miesner, A. Sprenger, H. Rambold, R. Wenzelburger, W. Heide, and G. Deuschl Eye movement abnormalities in essential tremor may indicate cerebellar dysfunction Brain, June 1, 2003; 126(6): 1319 - 1332. [Abstract] [Full Text] [PDF]

				J. G. Colebatch, H. Rambold, W. Heide, A. Sprenger, G. Haendler, and C. Helmchen Perilymph fistula associated with pulse-synchronous eye oscillations Neurology, January 8, 2002; 58(1): 159 - 160. [Full Text] [PDF]

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