PMC7062794_01
Findings of video-head impulse tests (video-HITs). (A) Four days after symptom onset, video-HITs showed decreased gains of the vestibulo-ocular reflex for the right horizontal (HC) and anterior semicircular canals (AC) while that for right posterior semicircular canal (PC) is normal. (B) Follow-up video-HITs, 10 days after symptom onset, showed a decreased gain only for right HC. (C) Two months after symptom onset, findings of video-HITs were normal.
fneur-11-00157-g0001.jpg
PMC7062794_01_fneur-11-00157-g0001.jpg
F1
Quantitative video-HIT showed decreased function of the vestibulo-ocular reflex (VOR) for right HC and anterior canal (AC) with the right posterior semicircular canal (PC) was spared (Figure 1A). Ten days after the illness began, a follow-up video-HIT showed that only the HC had decreased function (Figure 1B). Two months after the illness, the video-HIT was normal (Figure 1C).