前庭神經炎患者自發眼振之序次變化－病例報告

Progression of the Three Components of Spontaneous Nystagmus in a Patient Vestibular Neuritis - Case Report

蔣敬文(Ching-Wen Chiang) ； 楊怡和(Yi-Ho Young)

《中華民國耳鼻喉科醫學雜誌》 35卷6期 (2000/12) Pp. 419-422

https://doi.org/10.6286/2000.35.6.419

摘要

由組織病理學研究得知，前庭神經炎的病變主要位於上前庭神經。而近年來新開發的儀器；前庭誘發性電位和三度空間眼振錄影圖，則可用來區分病變屬上或下前庭神經。估追蹤患者三度空間眼振之序次變化，可評估上前庭神經、前半規管、及外側半規管等功能之消長本例患者前庭誘發肌性電位兩側均呈陽性，並呈向左、向上、及順時迴旋的自發性眼振，表示病變部位在右側上前庭神經。在恢復的過程中，垂直何迴旋成分之眼振水評分水成分消失得早，表示支配三半規管之前庭神經功能的代賞，並非同步。

關鍵字

前庭神經炎 ； 前庭誘發肌性電位 ； 眼振錄影圖 ； 三度空間

並列摘要

Histopathological investigations have shown that the main lesion in vestion vestibular neuritis lies in the superior vestibular nerve and its neuroelium. Byway of vestibular evked myogenic potentials (VEMP) and three-dimensional videonystagmographs (3-D VNG), one can differentiate between superior and inferior vestibular nerve lesions, and evaluate the progression of spontaneous nystagmus during convalescenec. In this 26-year-old female patient with right vestibular neuritis, VEMPs were positi bilaterally, whereas thedirections of spontaneous of spontaneous nystagmus were leftward, upward, and clockwise beating. This meant that the function of the right superior vestibular nerve was suppressed. Both vertical and torsional components of the spontaneous nystagmus resolved earilier than the horizontal component during convalescence. This tends to suggest that compensation of vestibular function deriving from deriving from individual semicircular canal palsy not simultaneous.

並列關鍵字

Vestibular neuritis ； vestibular evoked myogenic potential ； videonystagmograph ； three-dimension