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Research in Vestibular Science > Volume 13(4); 2014 > Article
Research in Vestibular Science 2014;13(4): 102-107.
전정신경염 환자에서 외안근 전정유발근전위 검사: 경부 전정유발근전위와 주관적 시수직 검사와의 비교 연구
김수일, 하영민, 김상훈, 정지현, 박문서, 변재용
경희대학교 의과대학 이비인후-두경부외과학교실
Ocular Vestibular Evoked Myogenic Potential in Vestibular Neuritis Patients: Comparative Study with Cervical Vestibular Evoked Myogenic Potential and Subjective Visual Vertical
Su Il Kim, Young Min Ha, Sang Hoon Kim, Ji Hyun Chung, Moon Suh Park, Jae Yong Byun
Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University School of Medicine, Seoul, Korea. otorhino512@naver.com
ABSTRACT
Background and Objectives:   Subjective visual vertical (SVV) reflects utricle and superior vestibular neural functions, and cervical vestibular evoked myogenic potentials (cVEMP) reflect saccule and inferior vestibular neural functions. But, origin and characteristics of ocular VEMP (oVEMP) remain controversial, especially in case of evoked by air conducted sound (ACS). Thus, the aim of this study was to identify the origin and characteristics of oVEMP by comparing with various otolith function tests.
Materials and Methods:   Forty vestibular neuritis patients were enrolled from September 2012 to January 2013 in this study. We examined cVEMP, oVEMP using 500 Hz air-counducted sounds. And, we measured static and dynamic SVV.
Results:   Abnormal cVEMP responses were observed in 6 (15%) patients, and abnormal oVEMP responses were observed in 28 (70%) patients. Abnormal static and dynamic SVV were observed in 18 (45%), 35 (87.5%) patients, respectively. There was strong correlation between oVEMP and dynamic SVV (p=0.009).
Conclusion:   ACS oVEMP responses showed different tendency from cVEMP responses in vestibular neuritis patients, but similar tendency with results of dynamic SVV. The results suggest that origin of oVEMP is different from that of cVEMP and maybe utricle and superior vestibular neuron.
Keywords: Vestibular evoked myogenic potentials; Subjective visual vertical; Vestibular neuronitis
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