Skip Navigation
Skip to contents

Res Vestib Sci : Research in Vestibular Science

OPEN ACCESS
SEARCH
Search

Author index

Page Path
HOME > Issue > Author index
Search
Ji Won Choi 1 Article
Canal Dysfunction Detected by Video Head Impulse Test in Patients with Vestibular Migraine and Its Relationship with Symptomatic Improvement
Ji Won Choi, Won Sub Lim, Sung Seok Ryu, Yeonjoo Choi, Sang Hun Lee, Seung Cheol Ha, Hong Ju Park
Res Vestib Sci. 2022;21(2):46-52.   Published online June 15, 2022
DOI: https://doi.org/10.21790/rvs.2022.21.2.46
  • 2,789 View
  • 55 Download
AbstractAbstract PDF
Objectives
Video head impulse test (vHIT) can evaluate function of the vestibuloocular reflex for high frequency range of head rotation. We aimed to characterize the abnormal patterns of canal dysfunction by vHIT in vestibular migraine (VM) and evaluate the relationship between the presence of canal dysfunction and symptomatic improvement.
Methods
Eighty-seven patients with VM were included. Abnormality of vHIT at the initial examination was determined by the vHIT gain and the degrees of the corrective saccades at each canal and each side. The relationship between the abnormal patterns and the symptomatic improvement (no need for preventive medication) after modification of life styles and preventive medications for 1, 3, and 6 months was evaluated.
Results
Abnormal vHIT of the lateral canal was 13.8% when determined by the gain criteria and 31.0% when based on both gain and corrective saccade, regardless of the side. Abnormal vHIT of the superior and posterior canals were 18.4% and 27.6%, regardless of the side. Abnormal vHIT at any canal and side was observed in 47%. Patients showed symptomatic improvement in 29.9%, 71.3%, and 88.5% after modification of life styles and preventive medications for 1, 3, and 6 months. Abnormal vHIT results of canals were significantly related to the poor response to preventive mediations.
Conclusions
Prolonged preventive medication was required for symptomatic improvement in VM patients when vHIT results of any canals were abnormal, suggesting that peripheral vestibular abnormality is closely related to the pathophysiology of vestibular migraine.

Res Vestib Sci : Research in Vestibular Science
TOP