Evidence map›Paper›PMID 30610425›Full record

ArticleJournal of neurology2019

Determining factors of better leptomeningeal collaterals: a study of 857 consecutive acute ischemic stroke patients.

Stefania Nannoni, Gaia Sirimarco, Carlo W Cereda, Dimitris Lambrou, Davide Strambo, Ashraf Eskandari, Pascal J Mosimann, Max Wintermark, Patrik Michel

Abstract read
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In one paragraph

Article in Journal of neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Genetic determinants of insufficiency of the collateral circulation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Sanctuary sites in cortical stroke.Frontiers in neurology · 2025
    Article
  9. Article
  10. Article
  11. The negative effect of aging on cerebral venous outflow in acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  12. Exploring sex differences for acute ischemic stroke clinical, imaging and thrombus characteristics in the INTERRSeCT study.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Observational
  13. Review
  14. Article
  15. Article
  16. Clinical and radiological factors predicting stroke outcome after successful mechanical intervention in anterior circulation.European heart journal supplements : journal of the European Society of Cardiology · 2022
    Article
  17. Article
  18. Article
  19. Article
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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

9 authors.

Stefania NannoniStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland. Stefania.Nannoni@chuv.ch.ORCID http://orcid.org/0000-0002-1825-1874
Gaia SirimarcoStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland.
Carlo W CeredaStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland.
Dimitris LambrouStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland.
Davide StramboStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland.
Ashraf EskandariStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland.
Pascal J MosimannNeuroradiology Division, Department of Radiology, Inselspital, Bern, Switzerland.
Max WintermarkNeuroradiology Division, Department of Radiology, Stanford University and Medical Center, Stanford, USA.
Patrik MichelStroke Center, Neurology Service, Lausanne University Hospital, Rue du Bugnon, 46, 1011, Lausanne, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn acute ischemic stroke (AIS) collaterals correlate with infarct size, recanalization rate and clinical outcome. We aimed to identify factors associated with better collateral status in a large series of AIS patients with middle cerebral artery (MCA) occlusion.

methodsIn the Acute STroke Registry and Analysis of Lausanne (ASTRAL) from 2003 to 2016, we identified all consecutive AIS with proximal MCA occlusion on CT-angiography performed < 24 h. Collaterals were scored from 0 (absent) to 3 (≥ 100%) and related to multiple demographic, clinical, metabolic and radiological variables in a multivariate regression analysis (MVA).

resultsThe 857 included patients had a median age of 72.3 years, 48.4% were female and median admission NIHSS was 16. Better collaterals were associated with younger age (OR 0.99; 95% CI 0.98-1.00), hemineglect (OR 1.35; 95% CI 1.03-1.76), absence of visual field defects (OR 0.64; 95% CI 0.46-0.90), eye deviation (OR 0.58; 95% CI 0.43-0.79) and decreased vigilance (OR 0.62; 95% CI 0.44-0.88). Better collaterals were also associated with dyslipidemia (OR 1.57; 95% CI 1.16-2.13), no previous statin use (OR 0.69; 95% CI 0.50-0.95), and lower creatinine levels (OR 0.99; 95% CI 0.99-1.00). On neuroimaging, better collaterals related to higher ASPECTS score (OR 1.27; 95% CI 1.20-1.35) and higher clot burden score (OR 1.09; 95% CI 1.03-1.14).

conclusionsYounger age, dyslipidemia and lower creatinine levels were predictors of better collaterals in AIS patients from proximal MCA occlusions. Greater degree of collaterals related to lower stroke severity on admission. On neuroimaging, better collaterals were independently associated with minor early ischemic changes and lower clot burden. These data may add knowledge on pathophysiology of collaterals development and may help to identify patients with better collaterals for late or aggressive recanalization treatments.

Indexed as

Brain IschemiaRegistriesStrokeAgedAged, 80 and overCerebrovascular CirculationCollateral CirculationFemaleHumansInfarction, Middle Cerebral ArteryMaleMeningesMiddle AgedRetrospective StudiesAcute ischemic strokeAcute neuroimagingCollateral circulationComputed tomography-angiography (CTA)

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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.