目的:前庭诱发肌源性电位(VEMP)与耳石传入神经有关,可用于评估囊和囊的功能。在这项研究中,我们比较了刺激诱发的颈部VEMP与空气传导声音(ACS)和骨传导振动(BCV)对额头的影响,并研究了BCV是否可以替代ACS.
方法:数据来自33例前庭神经鞘瘤患者。术前进行前庭检查。VEMP是在用ACS(ACScVEMP)和BCV刺激额头时使用微型振荡器(BCVcVEMP)获得的。还使用热量测试和眼部VEMP(oVEMP)测试分析了前庭功能。oVEMP是使用对前额的骨传导振动测量的。BCVcVEMP的结果,ACScVEMP,和oVEMP通过热量测试进行比较。
结果:ACScVEMP异常患者的比率,BCVcVEMP,oVEMP,热量测试结果为78.8%,75.8%,78.8%,和69.7%,分别。BCVcVEMP与ACScVEMP不相关,但与oVEMP和热量测试结果相关。
结论:BCVcVEMP与ACScVEMP不相关。因此,BCVcVEMP不能用作ACScVEMP的替代品。
OBJECTIVE: The vestibular evoked myogenic potential (VEMP) is associated with otolithic afferents and can be used to evaluate the function of the saccule and utricle. In this study, we compared cervical VEMP evoked by stimulation with Air-conducted sound (ACS) and bone-conducted vibration (BCV) to the forehead and investigated whether BCV can be used as a substitute for ACS.
METHODS: Data were obtained from 33 patients with vestibular schwannoma. Vestibular examinations were performed preoperatively. VEMP was obtained upon stimulation with ACS (ACS cVEMP) and BCV to the forehead using a minishaker (BCV cVEMP). Vestibular function was also analyzed using the caloric test and ocular VEMP (oVEMP) testing. oVEMP was measured using bone-conductive vibration to the forehead. The results of BCV cVEMP, ACS cVEMP, and oVEMP were compared by the caloric test.
RESULTS: Rates of patients with abnormal ACS cVEMP, BCV cVEMP, oVEMP, and caloric test results were 78.8%, 75.8%, 78.8%, and 69.7%, respectively. BCV cVEMP did not correlate with ACS cVEMP, but correlated with oVEMP and caloric test results.
CONCLUSIONS: BCV cVEMP did not correlate with ACS cVEMP. Therefore, BCV cVEMP cannot be used as a substitute for ACS cVEMP.