Evidence map›Paper›PMID 37076307›Full record

ArticleNeurology2023

Analyses of Head-Impulse Tests in Patients With Posterior Circulation Stroke and Vestibular Neuritis.

Sung-Hwan Kim, Sun-Uk Lee, Bang-Hoon Cho, Kyung-Hee Cho, Sungwook Yu, Byung-Jo Kim, Ji-Soo Kim

Open access · greenAbstract read
In one paragraph

Article in Neurology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 20 citations in OpenAlex.

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  15. Neurological update: neuro-otology 2023.Journal of neurology · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 3 countries.

Sung-Hwan KimFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea.
Sun-Uk LeeFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea. sulee716@gmail.com.ORCID 0000-0001-8660-7759
Bang-Hoon ChoFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea.
Kyung-Hee ChoFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea.
Sungwook YuFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea.
Byung-Jo KimFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea.ORCID 0000-0002-0445-7185
Ji-Soo KimFrom the Department of Neurology (S.-H.K., S.-U.L., B.-H.C., K.-H.C., S.Y., B.-J.K.), Korea University Medical Center, Seoul; BK21 FOUR Program in Learning Health Systems (B.-J.K.), Korea University, Seoul; Dizziness Center (J.-S.K.), Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam; and Department of Neurology (J.-S.K.), Seoul National University College of Medicine, South Korea.
Korea University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesThe interpretation of video head-impulse tests (video-HITs) can often be complicated, limiting their clinical utility in acute vestibular syndrome. We aimed to determine video-HIT findings in patients with posterior circulation strokes (PCSs) and vestibular neuritis (VN).

methodsWe retrospectively analyzed the results of video-HITs in 59 patients with PCS. Irrespective of the actual lesion revealed later on MRIs, ipsilateral and contralateral sides were assigned according to the direction of slow phase of spontaneous nystagmus (SN). Then, the patterns of video-HIT findings were classified according to the vestibulo-ocular reflex (VOR) gain for the horizontal canals; (1) ipsilaterally positive, (2) contralaterally positive, (3) bilaterally normal, and (4) bilaterally positive. The abnormal responses were further defined into (5) wrong-way saccades, (6) perverted, and (7) early acceleration followed by premature deceleration. We also analyzed the asymmetry of the corrective saccadic amplitude between the sides, calculated from the sum of cumulative saccadic amplitudes on both sides. The results were compared with video-HIT results from 71 patients with VN.

resultsVideo-HITs were normal in 32 (54%), ipsilaterally positive in 11 (19%), bilaterally positive in 10 (17%), and contralaterally positive in 6 (10%) patients with PCS. Wrong-way saccades were more frequently observed in VN than in PCS (31/71 [44%] vs 5/59 [8%], DISCUSSION: Patients with PCS may show various head-impulse responses that deviate from the findings expected in VN, which include normal, contralaterally positive, and negative saccadic amplitude asymmetry (i.e., greater cumulative saccadic amplitude contralaterally). A thorough analysis of corrective saccades in video-HITs can improve the differentiation of PCS from VN even before MRIs.

Indexed as

StrokeVestibular NeuronitisHead Impulse TestHumansReflex, Vestibulo-OcularRetrospective StudiesVertigo

Identifiers

PMID37076307
PMCPMC10256120
OpenAlexW4366367095

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.