Takeichi N, Sakamoto T, Fukuda S, Inuyama Y
Department of Otolaryngology, Hokkaido University School of Medicine, Sapporo, Japan.
Auris Nasus Larynx. 2001 May;28 Suppl:S39-41. doi: 10.1016/s0385-8146(01)00075-x.
To study the utility of VEMP (vestibular-evoked myogenic potential) in the diagnosis of acoustic neuromas.
Eighteen patients with unilateral acoustic neuromas were subjected to this study. Myogenic potential responding to loud click stimuli was recorded at ipsilateral sternocleidomastoid muscle. A normal range of VEMP was obtained from 20 controls. VEMP responses were compared with both, clinical symptoms and results of caloric tests.
Thirteen out of 18 patients showed decreased responses of VEMP at the affected side. VEMP responses seemed to have little relation with dysequilibrium, spontaneous nystagmus, canal paresis and pure-tone hearing.
VEMP is useful for detecting dysfunction of inferior vestibular nerve in patients with acoustic neuromas.
研究前庭诱发肌源性电位（VEMP）在听神经瘤诊断中的应用价值。
本研究纳入18例单侧听神经瘤患者。在同侧胸锁乳突肌记录对大声短声刺激的肌源性电位。从20名对照者获得VEMP的正常范围。将VEMP反应与临床症状和冷热试验结果进行比较。
18例患者中有13例患侧VEMP反应降低。VEMP反应似乎与平衡失调、自发性眼球震颤、半规管轻瘫和纯音听力关系不大。
VEMP有助于检测听神经瘤患者的前庭下神经功能障碍。
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