Evidence map›Paper›PMID 34824096›Full record

ArticleAJNR. American journal of neuroradiology2021

Idiopathic Intracranial Hypertension is Associated with a Higher Burden of Visible Cerebral Perivascular Spaces: The Glymphatic Connection.

O Jones, J Cutsforth-Gregory, J Chen, M T Bhatti, J Huston, W Brinjikji

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2021. 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
2.1field-weighted citation impact, top 11% 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, 29 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. The Glymphatic System and Its Role in Neurovascular Diseases.Journal of neuroendovascular therapy · 2025
    Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Neurosurgery and the glymphatic system.Acta neurochirurgica · 2024
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Glymphatic System in Ocular Diseases: Evaluation of MRI Findings.AJNR. American journal of neuroradiology · 2022
    Observational
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

6 authors at 4 institutions in 3 countries.

O JonesFrom the Departments of Radiology (O.J., J.H., W.B.).ORCID 0000-0003-1002-974X
J Cutsforth-GregoryNeurology (J.C.-G., J.C., M.T.B.).ORCID 0000-0002-5689-4424
J ChenNeurology (J.C.-G., J.C., M.T.B.).ORCID 0000-0003-3644-7528
M T BhattiNeurology (J.C.-G., J.C., M.T.B.).ORCID 0000-0001-7190-5630
J HustonFrom the Departments of Radiology (O.J., J.H., W.B.).ORCID 0000-0003-0584-9460
W BrinjikjiFrom the Departments of Radiology (O.J., J.H., W.B.) brinjikji.waleed@mayo.edu.ORCID 0000-0001-5271-5524
J.P. Morgan · GBMayo Clinic · USC3J Therapeutics (United States) · USSlovenska Industrija Jekla (Slovenia) · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeResearch suggests a connection between idiopathic intracranial hypertension and the cerebral glymphatic system. We hypothesized that visible dilated perivascular spaces, possible glymphatic pathways, would be more prevalent in patients with idiopathic intracranial hypertension. This prevalence could provide a biomarker and add evidence to the glymphatic connection in the pathogenesis of idiopathic intracranial hypertension. MATERIALS AND

methodsWe evaluated 36 adult (older than 21 years of age) patients with idiopathic intracranial hypertension and 19 controls, 21-69 years of age, who underwent a standardized MR imaging protocol that included high-resolution precontrast T2- and T1-weighted images. All patients had complete neuro-ophthalmic examinations for papilledema. The number of visible perivascular spaces was evaluated using a comprehensive 4-point qualitative rating scale, which graded the number of visible perivascular spaces in the centrum semiovale and basal ganglia; a 2-point scale was used for the midbrain. Readers were blinded to patient diagnoses. Continuous variables were compared using a Student

resultsThe mean number of visible perivascular spaces overall was greater in the idiopathic intracranial hypertension group than in controls (4.5 [SD, 1.9] versus 2.9 [SD, 1.9], respectively;

conclusionsIdiopathic intracranial hypertension is associated with an increased number of visible intracranial perivascular spaces. This finding provides insight into the pathophysiology of idiopathic intracranial hypertension, suggesting a possible relationship between idiopathic intracranial hypertension and glymphatic dysfunction and providing another useful biomarker for the disease.

Indexed as

Glymphatic SystemPseudotumor CerebriAdultAgedBasal GangliaHumansMagnetic Resonance ImagingMiddle AgedYoung Adult

Identifiers

PMID34824096
PMCPMC8805760
OpenAlexW3216160512

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.