Is There an "Acquired Idiopathic Head-Shaking Nystagmus"?-A Discussion of Mechanisms and Clinical Implications Based on a Case Report.

ABSTRACT:

Background

Head-shaking nystagmus (HSN) occurs in both peripheral and central vestibular disorders. In most cases, HSN can be attributed to an asymmetric peripheral vestibular input or a structural lesion mostly in the cerebellum affecting the central velocity storage mechanism. An isolated HSN is very rare.

Case presentation

We report on a young female patient with the clinical picture of recurrent episodes of vertigo, which were induced by fast head movements and were accompanied by a severe right-beating HSN with a long time constant of 60 s. There was no other clinical and instrument-based evidence of peripheral vestibular dysfunction (including video head impulse test, caloric test, vestibular-evoked myogenic potentials) or indication of a structural lesion in the nodul

SUBMITTER: Filippopulos FM 

PROVIDER: S-EPMC9163310 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature