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01-10-2013 | Letter to the Editor

Perverted Head Impulse Test in Cerebellar Ataxia

Authors: Seong-Hae Jeong, Ji-Soo Kim, In Chul Baek, Jong Wook Shin, Hyunjin Jo, Ae Young Lee, Jae-Moon Kim

Published in: The Cerebellum | Issue 5/2013

Excerpt

In the bedside head impulse test (HIT), the clinician identifies the catch-up saccades after head rotation as an indirect sign of vestibulo-ocular reflex (VOR) deficit [1]. Positive HIT can be observed in central vestibulopathies, in addition to peripheral vestibulopathies [2‐4]. Recent reports proposed that a positive HIT in these patients with preserved caloric response is most likely due to cerebellar flocculus dysfunction, considering the findings of earlier studies related to high-frequency VOR [2‐4]. Also, the dysconjugate upward eye deflection during yaw head impulse was also observed in patients with cerebellar disease [5, 6]. …

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Title: Perverted Head Impulse Test in Cerebellar Ataxia
Authors: Seong-Hae Jeong
Ji-Soo Kim
In Chul Baek
Jong Wook Shin
Hyunjin Jo
Ae Young Lee
Jae-Moon Kim
Publication date: 01-10-2013
Publisher: Springer US
Published in: The Cerebellum / Issue 5/2013
Print ISSN: 1473-4222
Electronic ISSN: 1473-4230
DOI: https://doi.org/10.1007/s12311-013-0480-0

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Perverted Head Impulse Test in Cerebellar Ataxia

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