Nystagmus in benign paroxysmal positional vertigo: a three-component analysis.
Nystagmus in benign paroxysmal positional vertigo: a three-component analysis.
复制标题
良性阵发性位置性眩晕中的眼球震颤：三分量分析。
DOI：
10.3109/00016489509125237
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
K. Ushio
中科院分区：
文献类型：
--
作者：
T. Yagi;K. Ushio
Three-component analysis of nystagmus was carried out in 10 patients with benign paroxysmal positional vertigo (BPPV), focusing on the horizontal, vertical and torsional components, with the aid of a computerized eye movement analysis system. Using a pendular rotation stimulus we also measured three eye components of eye movement evoked from the vertical semicircular canals in 3 normal subject; two components (vertical and torsional) of nystagmus in patients with BPPV were compared with that of eye movements derived from the vertical semicircular canals. The time course of slow phase velocity of three components in BPPV patients was similar. In BPPV, the torsional component of eye movements was larger than that of the vertical component without obvious horizontal eye deviation. On the other hand, the vertical component from vertical semicircular canals was larger than that of the torsional component. From the view point of the vestibulo-ocular reflex, it is difficult to support the idea that the pathology of BPPV is localized only to the posterior semicircular canal.
