内淋巴积水与前庭诱发肌源性电位之间的关系。
Relationship between endolymphatic hydrops and vestibular-evoked myogenic potential.
作者信息
Katayama Naomi, Yamamoto Masako, Teranishi Masaaki, Naganawa Shinji, Nakata Seiichi, Sone Michihiko, Nakashima Tsutomu
机构信息
Department of Nutrition and Food Science, Nagoya Women's University, Nagoya, Japan.
出版信息
Acta Otolaryngol. 2010 Aug;130(8):917-23. doi: 10.3109/00016480903573187.
CONCLUSION
Vestibular-evoked myogenic potential (VEMP) can be used to examine endolymphatic hydrops, especially in the vestibule.
OBJECTIVE
To investigate the relationship between the degree of endolymphatic hydrops revealed by magnetic resonance imaging (MRI) and VEMP.
METHODS
Gadolinium diluted with saline was injected intratympanically in 49 ears (40 patients). One day after the injection, the endolymphatic space in the vestibule and the cochlea was visualized by 3 Tesla MRI. A VEMP test was done, and VEMP was judged as absent when the VEMP was within the noise level.
RESULTS
VEMP was present in 21 ears and absent in 28 ears. Endolymphatic hydrops was significantly associated with the disappearance of VEMP. Endolymphatic hydrops in the vestibule had a stronger effect than endolymphatic hydrops in the cochlea. Five patients with extremely large vestibular hydrops showed no response of VEMP.
结论
前庭诱发肌源性电位（VEMP）可用于检查内淋巴积水，尤其是在前庭。
目的
探讨磁共振成像（MRI）显示的内淋巴积水程度与VEMP之间的关系。
方法
将钆与盐水稀释后经鼓室内注射到49只耳（40例患者）。注射后一天，通过3特斯拉MRI观察前庭和耳蜗内的内淋巴间隙。进行VEMP测试，当VEMP处于噪声水平时判定为VEMP消失。
结果
21只耳VEMP存在，28只耳VEMP消失。内淋巴积水与VEMP消失显著相关。前庭内淋巴积水比耳蜗内淋巴积水的影响更强。5例前庭积水极大的患者VEMP无反应。
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