scholarly journals Current concepts in acute vestibular syndrome and video-oculography

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Georgios Mantokoudis ◽  
Jorge Otero-Millan ◽  
Daniel R. Gold
Keyword(s):  
Video Oculography ◽  
Acute Vestibular Syndrome

scholarly journals Quantifying the Vestibulo-Ocular Reflex with Video-Oculography: Nature and Frequency of Artifacts

2014 ◽  
Vol 20 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Georgios Mantokoudis ◽  
Ali S. Saber Tehrani ◽  
Jorge C. Kattah ◽  
Karin Eibenberger ◽  
Cynthia I. Guede ◽  
...  
Keyword(s):  
Head Impulse Test ◽  
Head Impulse ◽  
Video Oculography ◽  
Ocular Reflex ◽  
Acute Vestibular Syndrome ◽  
Vestibulo Ocular Reflex ◽  
Corrective Saccades ◽  
Coding Manual ◽  
A Prospective Study ◽  
The Impact

Video-oculography devices are now used to quantify the vestibulo-ocular reflex (VOR) at the bedside using the head impulse test (HIT). Little is known about the impact of disruptive phenomena (e.g. corrective saccades, nystagmus, fixation losses, eye-blink artifacts) on quantitative VOR assessment in acute vertigo. This study systematically characterized the frequency, nature, and impact of artifacts on HIT VOR measures. From a prospective study of 26 patients with acute vestibular syndrome (16 vestibular neuritis, 10 stroke), we classified findings using a structured coding manual. Of 1,358 individual HIT traces, 72% had abnormal disruptive saccades, 44% had at least one artifact, and 42% were uninterpretable. Physicians using quantitative recording devices to measure head impulse VOR responses for clinical diagnosis should be aware of the potential impact of disruptive eye movements and measurement artifacts. i 2014 S. Karger AG, Basel

scholarly journals Impact of artifacts on VOR gain measures by video-oculography in the acute vestibular syndrome

2016 ◽  
Vol 26 (4) ◽  
pp. 375-385 ◽  
Author(s):  
Georgios Mantokoudis ◽  
Ali S. Saber Tehrani ◽  
Amy Wozniak ◽  
Karin Eibenberger ◽  
Jorge C. Kattah ◽  
...  
Keyword(s):  
Video Oculography ◽  
Acute Vestibular Syndrome

scholarly journals Video-Oculography-Assisted Head Impulse Test and Caloric Testing for Detecting Stroke in Acute Vertigo Patients via Modified HINTS Plus

2021 ◽  
Vol 10 (19) ◽  
pp. 4471
Author(s):  
Timo Siepmann ◽  
Cosima Gruener ◽  
Erik Simon ◽  
Annahita Sedghi ◽  
Hagen H. Kitzler ◽  
...  
Keyword(s):  
Diagnostic Value ◽  
Posterior Circulation ◽  
Head Impulse Test ◽  
Head Impulse ◽  
Caloric Testing ◽  
Patients Âgés ◽  
Video Oculography ◽  
Posterior Circulation Stroke ◽  
Acute Vestibular Syndrome ◽  
Cranial Mri

Background: We assessed whether detection of stroke underlying acute vertigo using HINTS plus (head-impulse test, nystagmus type, test of skew, hearing loss) can be improved by video-oculography for automated head-impulse test (V-HIT) analysis. Methods: We evaluated patients with acute vestibular syndrome (AVS) presenting to the emergency room using HINTS plus and V-HIT-assisted HINTS plus in a randomized sequence followed by cranial MRI and caloric testing. Image-confirmed posterior circulation stroke or vertebrobasilar TIA were the reference standards to calculate diagnostic accuracy. We repeated statistical analysis for a third protocol that was composed post hoc by replacing the head-impulse test with caloric testing in the HINTS plus protocol. Results: We included 30 AVS patients (ages 55.4 ± 17.2 years, 14 females). Of these, 11 (36.7%) had posterior circulation stroke (n = 4) or TIA (n = 7). Acute V-HIT-assisted HINTS plus was feasible and displayed tendentially higher accuracy than conventional HINTS plus (sensitivity: 81.8%, 95% CI 48.2–97.7%; specificity 31.6%, 95% CI 12.6–56.6% vs. sensitivity 72.7%, 95% CI 39.0–94.0%; specificity 36.8%, 95% CI 16.3–61.6%). The new caloric-supported algorithm showed high accuracy (sensitivity 100%, 95% CI 66.4–100%; specificity 66.7%, 95% CI 41–86.7%). Conclusions: Our study provides pilot data on V-HIT-assisted HINTS plus for acute AVS assessment and indicates the diagnostic value of integrated acute caloric testing.

scholarly journals Acute Vestibular Syndrome Preceded by Otologic Symptoms in Sarcoidosis

2021 ◽  
Vol 20 (2) ◽  
pp. 69-73
Author(s):  
Hyeon-Joong Park ◽  
Jae-Myung Kim ◽  
Han-Sol Choi ◽  
Taebum Lee ◽  
Seung-Han Lee
Keyword(s):  
Acute Vestibular Syndrome

scholarly journals Acute and episodic vestibular syndromes caused by ischemic stroke: predilection sites on diffusion-weighted images

2019 ◽  
Author(s):  
Dao-Ming Tong ◽  
Xiao-Dong Chen ◽  
Ye-Ting Zhou ◽  
Tong-Hui Yang
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Large Vessel ◽  
Anterior Circulation ◽  
Diffusion Weighted Images ◽  
Diffusion Weighted ◽  
Acute Vestibular Syndrome ◽  
Vessel Stenosis ◽  
Tertiary Teaching ◽  
Abcd2 Score

Abstract Background Although acute vestibular syndrome (AVS) and episodic vestibular syndrome (EVS) are an increasingly recognized cause of acute ischemic stroke, the predilection sites of AVS/EVS caused by acute ischemic stroke still is less known. Methods From Mar 2014 to Mar 2016 period, we used a new approach of 11thedition of the International Classification of Diseases (ICD-11) to retrospectively enrolled patients with identified AVS/EVS events caused by acute ischemic stroke in the stroke center of tertiary teaching hospital. The patients who had positive diffusion-weighted images (DWI) lesion and MRA were analyzed. Multivariable logistic regression was used to identify the risk of stroke causing AVS/EVS. Results Among 181 AVS/EVS patients with ischemic stroke, 68 (37.6%) patients with acute ischemic stroke were proved by DWI. Of them, the most frequent type was EVS (60.3%); the predilection sites of stroke was in the insular (51.7%, 15/29) in the anterior circulation artery (ACA), followed by the posterior of thalamus (28.6%, 8/28) in the posterior circulation artery (PCA). The lesion on DWI showed a median diameter of 4.0mm (range,0.6-89.4). The risk of AVS/EVS in acute ischemic stroke was found in association with large vessel stenosis/ occlusion (odds ratio[OR],, 0.12; 95% confidence interval [CI], 0.040-0.357), focal neurological symptom /sign (OR, 0.27; 95% CI, 0.104-0.751), and higher initial ABCD2 score (OR, 0.37; 95% CI, 0.239-0.573). Conclusions The predilection site of the AVS/EVS caused by acute ischemic stroke is in the insular. The risk of AVS/EVS was associated with a large vessel stenosis, focal neurological symptoms, and higher initial ABCD2 score.

scholarly journals A trial of the VOG (Video oculography) on iPhone

2020 ◽  
Vol 79 (4) ◽  
pp. 257-261
Author(s):  
Tatsuaki Kuroda ◽  
Kazuhiro Kuroda ◽  
Hiroaki Fushiki
Keyword(s):  
Video Oculography
Sign in / Sign up

Export Citation Format

Share Document