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Research in Vestibular Science > Volume 10(2); 2011 > Article
Research in Vestibular Science 2011;10(2): 68-73.
외안근 전정유발근전위와 경부 전정유발근전위와의 비교 연구
조일권, 서명환, 문태현, 이정구, 정재윤
단국대학교 의과대학 이비인후과교실
Clinical Comparison Between Ocular and Cervical Vestibular Evoked Myogenic Potentials
Il Kwon Cho, Myung Whan Suh, Tae Hyun Moon, Chung Ku Rhee, Jae Yun Jung
Department of Otolaryngology-Head and Neck Surgery, Dankook University Medical College, Cheonan, Korea. drmung@naver.com
Background and Objectives:   The goal of this study was to compare the outcome between cervical vestibular-evoked myogenic potential (cVEMP) and ocular VEMP (oVEMP) in the patients with definite vestibular dysfunction. Also, the subjective discomfort level was compared between cVEMP, classic oVEMP and head positioned oVEMP (a new method designed by the authors).
Materials and Methods:  
Eighteen patients with dizziness associated with unilateral vestibular hypofunction were included in this study. Vestibular neuritis, Ramsay-hunt syndrome and sudden sensorineural hearing loss with vertigo were included in unilateral vestibular hypofunction disease. cVEMP, classic oVEMP, and head positioned oVEMP were assessed and compared. To compare the subjective discomfort during the tests, visual analogue scale on discomfort was checked.
There was a discrepancy between the cVEMP and classic oVEMP in 31.3% of the cases. The classic oVEMP were associated with more discomfort than the cVEMP. But, there was no difference between the classic and head positioned oVEMP.
Since a substantial discrepancy was identified between the cVEMP and oVEMP, the pathways involved in cVEMP and oVEMP are likely different even with the same air conduction tone stimuli. The head positioned oVEMP may be an alternative to the classic oVEMP which has similar results and subjective discomfort levels.
Keywords: Vertigo; Vestibular-evoked myogenic potential; Vestibular neuronitis
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