Vibration Induced Shift of Subjective Visual Vertical-Horizontal

Research in Vestibular Science > Volume 11(0); 2012 > Article

Research in Vestibular Science 2012;11(0): 47-51.

진동에 의한 주관적 시수직-수평의 편위

정재윤

단국대학교 의과대학 이비인후-두경부외과학교실

Vibration Induced Shift of Subjective Visual Vertical-Horizontal

Jae Yun Jung, MD

Department of Otorhinolaryngology-Head and Neck Surgery, Dankook University College of Medicine, Cheonan, Korea

ABSTRACT

Subject visual vertical-horizontal (SVV-H) is well known as a quick, easy and sensitive otolith function test especially in acute stage and widely used in dizziness clinic. In compensated unilateral vestibulopathy, SVV-H shows decreased deviation losing its clinical role. Vibration applied either to neck muscle or mastoid bone can elicit nystagmus showing vestibular tonic imbalance even after compensation. Likewise, SVV-H test with vibration accentuates abnormal deviation and reveal chronic unilateral vestibular function loss. SVV-H can be sensitive test not only in acute but also after compensation, if used with vibration.