Kim Kun Woo, Lee Min Young, Jung Jae Yun
Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Korea.
J Audiol Otol. 2017 Jul;21(2):66-71. doi: 10.7874/jao.2017.21.2.66. Epub 2017 Jul 5.
To investigate effect of the vibration on subjective visual horizontal (SVH) in patients with acute stage of unilateral vestibulopathy.
Twenty-five unilateral vestibulopathy patients which analyzed into 42 cases at different time points and suffered from spinning vertigo for more than 24 hours without hearing loss and neurologic abnormality were enrolled. Thirteen subjects with spontaneous nystagmus (>3 degree/sec; averaged symptom onset <1 week) at the time of SVH measurement were classified into the acute unilateral vestibulopathy group (aVU). The other 29 subjects without spontaneous nystagmus were classified into the compensated vestibulopathy group (cVU). SVH was performed with vibration at either mastoid or sterocleidomastoid muscle.
In the analysis of overall subjects, vibration did not significantly change the degree of shift of SVH. However, analyzed by group, the shift of SVH with vibration at ipsilesional mastoid was significantly decreased than baseline in aVU (<0.05). The shift of SVH with vibration at contralesional mastoid was significantly increased than baseline in cVU (=0.05).
The shift of SVH due to vibration in acute stage of unilateral vestibulopathy showed reduction of the shift, while in compensated stage it showed increase of the shift.
探讨振动对单侧前庭病变急性期患者主观视觉水平（SVH）的影响。
纳入25例单侧前庭病变患者，在不同时间点分析共42例，均有旋转性眩晕超过24小时，无听力损失及神经学异常。13例在测量SVH时伴有自发性眼震（>3度/秒；平均症状发作<1周）的受试者被归入急性单侧前庭病变组（aVU）。另外29例无自发性眼震的受试者被归入代偿性前庭病变组（cVU）。在乳突或胸锁乳突肌处施加振动进行SVH检测。
在对所有受试者的分析中，振动未显著改变SVH的偏移程度。然而，按组分析，aVU组患侧乳突振动时SVH的偏移较基线显著降低（<0.05）。cVU组对侧乳突振动时SVH的偏移较基线显著增加（=0.05）。
单侧前庭病变急性期因振动导致的SVH偏移显示偏移减少，而在代偿期则显示偏移增加。
