Evidence map›Paper›PMID 26173146›Full record

ArticlePloS one2015

Obstruction of Venous Drainage Linked to Transient Global Amnesia.

Ke Han, A-Ching Chao, Feng-Chi Chang, Chih-Ping Chung, Hung-Yi Hsu, Wen-Yung Sheng, Jiang Wu, Han-Hwa Hu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

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  9. Styloidogenic jugular venous compression syndrome: a case report and review of the literature.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2020
    Review
  10. Article
  11. Review
  12. Review
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  14. Understanding jugular venous outflow disturbance.CNS neuroscience & therapeutics · 2018
    Review
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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

8 authors at 6 institutions in 2 countries.

Ke HanDepartment of Neurology, First Hospital of Jilin University, Changchun, Jilin Province, China.
A-Ching ChaoDepartment of Neurology, College of Medicine, Kaohsiung Medical University and Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
Feng-Chi ChangDepartment of Radiology, Taipei Veterans General Hospital and National Yang Ming University, Taipei, Taiwan.
Chih-Ping ChungDepartment of Neurology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan.
Hung-Yi HsuDepartment of Neurology, Tungs' Taichung Metro Harbor Hospital and Department of Neurology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Wen-Yung ShengDepartment of Neurology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan.
Jiang WuDepartment of Neurology, First Hospital of Jilin University, Changchun, Jilin Province, China.
Han-Hwa HuGraduate Institute of Clinical Medicine and Department of Neurology, College of Medicine, Taipei Medical University and Hospital, Taipei, Taiwan.
Taipei Veterans General Hospital · TWFirst Hospital of Jilin University · CNJilin University · CNKaohsiung Medical University Chung-Ho Memorial Hospital · TWTaipei Medical University Hospital · TWTungs' Taichung MetroHarbor Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Abnormal extracranial venous drainage modality has been considered an etiology of transient global amnesia (TGA). Evidence suggests that the transmission of the intrathoracic/intraabdominal pressure during a Valsalva maneuver (VM) is mainly through the vertebral venous system, and patency of internal jugular vein (IJV) is essential for venous drainage and pressure releasing. We hypothesize that obstruction of IJV venous drainage is a contributing factor in TGA pathogenesis. A magnetic resonance (MR) imaging protocol was used in 45 TGA patients and 45 age- and sex-matched controls to assess the morphologies of IJV, brachiocephalic vein (BCV) and asymmetry of transverse sinus (TS). The IJV was divided into the upper- and middle-IJV segments. Compared to the controls, TGA patients had significantly higher rates of moderate and severe compression/stenosis at the bilateral upper-IJV segment (left: 37.8% vs. 17.8%, P = 0.0393; right: 57.8% vs.15.6%, P<0.0012), in left BCV (60% vs. 8.9%, P<0.0004), and in TS hypoplasia (53.3%% vs. 31.1%, P = 0.0405). The prevalence of at least one site of venous compression/stenosis in IJV or BCV was significantly higher in patients than in controls (91.1% vs. 33.3%, P<0.0004). The diameter of the left TS in MRV, but not in T1 contrast imaging, was significantly smaller in TGA patients than in controls (0.31 ± 0.21 vs. 0.41 ± 0.19, P = 0.0290), which was compatible with downstream venous stenosis/obstruction. TGA patients have a higher prevalence of compression/stenosis of the bilateral IJV and the left BCV and TS hypoplasia, which is new evidence that supports the role of extracranial veins in TGA pathogenesis.

Indexed as

AdultAgedAged, 80 and overAmnesia, Transient GlobalCase-Control StudiesCerebrovascular CirculationConstriction, PathologicDrainageFemaleHumansJugular VeinsMagnetic Resonance ImagingMaleMiddle AgedValsalva ManeuverVeins

Identifiers

PMID26173146
PMCPMC4501814
OpenAlexW1536855961

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.