甘油对梅尼埃病患者前庭诱发的肌源性电位的影响

The influence of glycerol on vestibular evoked myogenic potentials in patients with Meniere's disease

目的通过梅尼埃病患者前庭诱发的肌源性电位(vestibulare voked myogenic potential,VEMP)在甘油试验前后的变化情况,了解本项检查在梅尼埃病诊断中的意义。方法对明确诊断为梅尼埃病的10例患者进行甘油试验,比较甘油试验前后前庭诱发的肌源性电位的变化。甘油试验VEMP观察时间段选择两点,服用甘油前及服用甘油后3小时的振幅变化作为指标。结果8例单侧梅尼埃病,其中5例振幅改善(2例振幅增加,3例振幅从无到有),3例甘油试验后VEMP的振幅变差。2例双侧梅尼埃病,1例甘油试验后VEMP振幅从无到有,1例VEMP振幅改善。结论梅尼埃病患者甘油试验后,VEMP变化有以下三种情况:①从无到有;②引出的振幅降低;③引出的振幅提高。甘油试验纯音听力检查结合VEMP的甘油试验有助于梅尼埃病的诊断。

Objective To observe the influence of glycerol on the responses of vestibular evoked myogenic potential(VEMP) and to explore the role of VEMP in the diagnosis of Meniere s disease. Method Glycerol tests were conducted on 10 patients with Meniere s disease and the amplitudes of VEMP were compared before and 3 hours after the intake of glycerol. Results Among 8 patients with Meniere s disease in one ear, 5 showed better amplitudes(2 patients amplitudes increased and 3 reappeared)and 3 patients had worse VEMP...