Department of Otolaryngology-Head and Neck Surgery, Toronto General Hospital, University Health Network, University of Toronto, Canada.
Department of Otolaryngology-Head and Neck Surgery, Toronto General Hospital, University Health Network, University of Toronto, Canada.
Am J Otolaryngol. 2021 Jan-Feb;42(1):102789. doi: 10.1016/j.amjoto.2020.102789. Epub 2020 Oct 24.
Vestibular evoked myogenic potentials (VEMPs) have an accepted role in the diagnosis of the superior semicircular canal dehiscence (SSCD) syndrome. The current impression is that ocular VEMPs (oVEMPs) are more sensitive than cervical VEMPs (cVEMPs) for detecting a SSCD and that oVEMP testing in response to air conducted sound provides an excellent screening test without risk of radiation exposure from computerized tomography (CT).
AIMS/OBJECTIVES: To report on patients with elevated oVEMP amplitudes but without evidence for a SSCD on multiplanar CT imaging.
Retrospective chart review of all patients referred for vestibular function testing to our department. Patients with oVEMP peak-to-peak amplitudes ≥17 μν without evidence for a SSCD on imaging were evaluated.
26 patients had oVEMP peak-to-peak amplitudes ≥17 μν with no evidence of a SSCD on imaging. The most common diagnosis was Meniere's disease in those identified.
oVEMPs can provide false positive results for diagnosis of a SSCD and an elevated oVEMP amplitude in itself is insufficient for diagnosis of a SSCD.
前庭诱发肌源性电位（VEMPs）在诊断上半规管裂（SSCD）综合征方面具有公认的作用。目前的印象是，眼动 VEMPs（oVEMPs）比颈动 VEMPs（cVEMPs）更敏感，用于检测 SSCD，并且对空气传导声音的 oVEMP 测试提供了一种出色的筛查测试，没有来自计算机断层扫描（CT）的辐射暴露风险。
目的/目标：报告 oVEMP 振幅升高但多平面 CT 成像无 SSCD 证据的患者情况。
对我院进行前庭功能检查的所有患者进行回顾性图表审查。评估 oVEMP 峰峰值幅度≥17μV 且无影像学 SSCD 证据的患者。
26 例患者的 oVEMP 峰峰值幅度≥17μV，影像学无 SSCD 证据。在已确定的患者中，最常见的诊断是梅尼埃病。
oVEMPs 可能会对上半规管裂（SSCD）的诊断产生假阳性结果，而 oVEMP 振幅升高本身不足以诊断 SSCD。
