نتایج جستجو برای: head impulse test

تعداد نتایج: 987655  

Journal: :Archives of neurology 2005
Ross A Black G Michael Halmagyi Matthew J Thurtell Michael J Todd Ian S Curthoys

BACKGROUND The head-impulse test, which is sensitive and specific for detecting severe unilateral peripheral vestibulopathy, is an accepted part of the neurological examination, especially in patients with vertigo and balance disorders. OBJECTIVE To discover if the head-impulse test is just as useful diagnostically when patients are asked to rotate their own heads, the active head-impulse tes...

2017
Catherine de Waele Qiwen Shen Christophe Magnani Ian S. Curthoys

OBJECTIVE We examined the eye movement response patterns of a group of patients with bilateral vestibular loss (BVL) during suppression head impulse testing. Some showed a new saccadic strategy that may have potential for explaining how patients use saccades to recover from vestibular loss. METHODS Eight patients with severe BVL [vestibulo-ocular reflex (VOR) gains less than 0.35 and absent o...

Journal: :Brazilian Journal of Otorhinolaryngology 2020

2015
Seong-Hae Jeong Yong Soo Kim Ju-Hoen Lee Hyunjin Jo Ae Young Lee Jae-Moon Kim

Head impulse test (HIT) is helpful to understanding high-frequency vestibulo-ocular reflex in patients with dizziness and imbalance. There are some reports on abnormal HITs in cerebellar disorder. To our knowledge, there was no report of transient bilateral positive head impulse related to antiepileptic drugs. A 65-year-old woman developed dizziness and imbalance after treatment with pregabalin...

2014
Cecilia Ramaioli Paolo Colagiorgio Murat Sağlam Fabian Heuser Erich Schneider Stefano Ramat Nadine Lehnen Zoi Kapoula

Patients with bilateral vestibular dysfunction cannot fully compensate passive head rotations with eye movements, and experience disturbing oscillopsia. To compensate for the deficient vestibulo-ocular reflex (VOR), they have to rely on re-fixation saccades. Some can trigger "covert" saccades while the head still moves; others only initiate saccades afterwards. Due to their shorter latency, it ...

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