-
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
-
Res Vestib Sci. 2014;13(4):102-107.
-
-
-
 Abstract
 PDF
- 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.
|
KBS
