Evidence map›Paper›PMID 30772952›Full record

ArticleBrain and behavior2019

Circle of Willis variations in migraine patients with ischemic stroke.

Arend M Hamming, Marianne A A van Walderveen, Inge A Mulder, Irene C van der Schaaf, L Jaap Kappelle, Birgitta K Velthuis, Michel D Ferrari, Gisela M Terwindt, Marieke C Visser, Wouter Schonewille and 3 more

Abstract read
In one paragraph

Article in Brain and behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Migraine and risk of stroke.Journal of neurology, neurosurgery, and psychiatry · 2020
    Review
  6. Article
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

13 authors.

Arend M HammingDepartment of Neurology, Leiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0003-2546-3610
Marianne A A van WalderveenDepartment of Radiology, Leiden University Medical Center, Leiden, The Netherlands.
Inge A MulderDepartment of Neurology, Leiden University Medical Center, Leiden, The Netherlands.
Irene C van der SchaafDepartment of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
L Jaap KappelleDepartment of Neurology, University Medical Center Utrecht, Utrecht, The Netherlands.
Birgitta K VelthuisDepartment of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Michel D FerrariDepartment of Neurology, Leiden University Medical Center, Leiden, The Netherlands.
Gisela M TerwindtDepartment of Neurology, Leiden University Medical Center, Leiden, The Netherlands.
Marieke C VisserDepartment of Neurology, VU Medical Center, Amsterdam, The Netherlands.
Wouter SchonewilleDepartment of Neurology, Antonius Hospital, Nieuwegein, The Netherlands.
Ale AlgraDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
Marieke J H WermerDepartment of Neurology, Leiden University Medical Center, Leiden, The Netherlands.
Dutch acute Stroke Study (DUST) investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesMigraine is a risk factor for stroke, which might be explained by a higher prevalence in anatomical variants in the circle of Willis (CoW). Here, we compared the presence of CoW variants in patients with stroke with and without migraine. MATERIALS AND

methodsParticipants were recruited from the prospective Dutch acute Stroke Study. All participants underwent CT angiography on admission. Lifetime migraine history was assessed with a screening questionnaire and confirmed by an interview based on International Classification of Headache Disorders criteria. The CoW was assessed for incompleteness/hypoplasia (any segment <1 mm), for anterior cerebral artery asymmetry (difference > 1/3), and for posterior communicating artery (Pcom) dominance (Pcom-P1 difference > 1/3). Odds ratios with adjustments for age and sex (aOR) were calculated with logistic regression.

resultsWe included 646 participants with stroke, of whom 52 had a history of migraine. Of these, 45 (87%) had an incomplete or hypoplastic CoW versus 506 (85%) of the 594 participants without migraine (aOR: 1.47; 95% CI: 0.63-3.44). There were no differences between participants with and without migraine in variations of the anterior or posterior CoW, anterior cerebral artery asymmetry (aOR: 0.86; 95% CI: 0.43-1.74), or Pcom dominance (aOR: 0.64; 95% CI: 0.32-1.30). There were no differences in CoW variations between migraine patients with or without aura.

conclusionWe found no significant difference in the completeness of the CoW in acute stroke patients with migraine compared to those without.

Indexed as

Brain IschemiaCircle of WillisMigraine DisordersStrokeAdultAgedAnalysis of VarianceBrainComputed Tomography AngiographyFemaleHumansMaleMiddle AgedPrevalenceProspective StudiesRisk Factorscircle of Williscomputed tomographyhumansmigraineneuroimagingstrokes

Identifiers

PMID30772952
PMCPMC6422794

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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.