The Video Head Impulse Test in the acute stage of posterior canal benign paroxysmal positional vertigo.
The Video Head Impulse Test in the acute stage of posterior canal benign paroxysmal positional vertigo.
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DOI：
10.14639/0392-100x-n1033
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发表时间：
2021-03
期刊：
影响因子：
--
通讯作者：
Melillo MG
中科院分区：
文献类型：
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作者：
Califano L;Iannella R;Mazzone S;Salafia F;Melillo MG
应用视频头脉冲试验（vHIT）研究后半规管良性阵发性位置性眩晕（BPPV）的高频前庭眼反射。本文报告了150例首次患后半规管BPPV的患者。在治疗前、急性期缓解后即刻和1个月后，通过右前-左后和左前-右后平面刺激分析后通道前庭眼反射（VOR）增益。结果与一组100名健康人进行了比较。除了研究组中后髓腔的标准化不对称率显著较高外，未观察到研究组与对照组之间的显著差异。患侧和健侧后半规管的VOR增益与同侧和健侧前半规管的VOR增益无显著相关性。vHIT似乎并不代表一个重要的工具，研究典型的后管BPPV的患者首次受到这种疾病。在复发型、无反应型、持续时间长型或非典型变异型中，可能会出现不同的结果，其中耳石在耳道中的持续存在或耳石的完全或部分堵塞可能引起重大损害。
Study the high-frequency vestibulo-oculomotor reflex in posterior canal benign paroxysmal positional vertigo (BPPV) through Video Head Impulse Test (vHIT). 150 patients suffering for the first time from posterior canal BPPV were studied. Posterior canal vestibulo ocular reflex (VOR) gain was analysed through stimulations in right anterior-left posterior and left anterior-right posterior planes before treatment, immediately after resolution of the acute stage and one month later. Results were compared with a group of 100 healthy individuals. No significant difference between the study the control groups was observed, except for normalised asymmetry ratio of the posterior canal which was significantly higher in the study group. VOR gains of both affected posterior canals and contralateral healthy posterior canals were not significantly correlated with the VOR gain of ipsilateral and contralateral anterior canals. vHIT does not seem to represent an essential tool to study typical posterior canal BPPV in patients affected by this disease for the first time. Different results might be expected in relapsing forms, non-responsive forms, long lasting forms, or atypical variants in which major damage could be provoked by the persistence of otoconia in the canal or by its complete or partial jam.