Evidence map›Paper›PMID 30610539›Full record

ArticleCerebellum (London, England)2019

Perverted Downward Corrective Saccades During Horizontal Head Impulses in Chiari Malformation.

Sung-Hee Kim, Hyo-Jung Kim, Ji-Soo Kim

Abstract readCase Reports
PubMed Publisher
In one paragraph

Article in Cerebellum (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Eye Movement Disorders and the Cerebellum.Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society · 2019
    Review
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

3 authors.

Sung-Hee KimDepartment of Neurology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, South Korea.
Hyo-Jung KimResearch Administration Team, Seoul National University Bundang Hospital, Seongnam, South Korea.
Ji-Soo KimDepartment of Neurology, Seoul National University College of Medicine, Seoul, South Korea. jisookim@snu.ac.kr.ORCID http://orcid.org/0000-0002-1508-2024

Funding

the National Research Foundation of Korea NRF-2016R1D1A1B04935568
6 · The paper itself

Abstract

The mechanism of perverted vertical responses during horizontal head impulse tests (HITs) requires further elucidation. A 47-year-old woman with a Chiari malformation showed alternating skew deviation, downbeat nystagmus with an increasing slow phase velocity, impaired smooth pursuit, and upward ocular deviation during horizontal HITs and corrective downward saccades in the presence of normal bithermal caloric tests and intact tilt suppressions of the post-rotatory nystagmus. These findings suggest dysfunction of the inferior cerebellum including the tonsil, nodulus, and uvula. We propose that disruption of signals from the medial part of the vestibulocerebellum, which normally inhibits the lateral and anterior canal pathways, may elicit an upward misdirection of the eye velocity during rapid horizontal head rotation. Otherwise, the Chiari malformation may have directly affected the brainstem structures involved in the direction matrix of the vestibulo-ocular reflex.

Indexed as

Arnold-Chiari MalformationFemaleHead Impulse TestHumansMiddle AgedNystagmus, PathologicSaccadesChiari malformationDownbeat nystagmusHead impulse test

Identifiers

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.