Evidence map›Paper›PMID 33298510›Full record

ArticleJournal of neurointerventional surgery2021

Per-pass analysis of acute ischemic stroke clots: impact of stroke etiology on extracted clot area and histological composition.

Seán Fitzgerald, Rosanna Rossi, Oana Madalina Mereuta, Duaa Jabrah, Adaobi Okolo, Andrew Douglas, Sara Molina Gil, Abhay Pandit, Ray McCarthy, Michael Gilvarry and 22 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurointerventional surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
7.3field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 80 citations in OpenAlex.

  1. Shell Versus Core Architecture and Biology of Thrombi in Acute Ischemic Stroke: A Systematic Review.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. The use of the NeVa stent-retriever for bail-out mechanical thrombectomy.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  8. Predicting Stroke Etiology with Radiomics: A Retrospective Study.Medical sciences (Basel, Switzerland) · 2025
    Article
  9. Impact of next-generation delivery assist catheters and crossing strategy on reperfusion success in aspiration thrombectomy.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  10. NIMBUS geometric clot extractor for challenging clots: Real-world clinical experience and clot composition.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  11. Article
  12. Review
  13. Observational
  14. Article
  15. Article
  16. Article
  17. First pass results of mechanical thrombectomy with two-drop zone NeVaInterventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
    Article
  18. Review
  19. Susceptibility vessel sign in patients with subacute ischemic stroke.Quantitative imaging in medicine and surgery · 2024
    Article
  20. 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

32 authors at 8 institutions in 5 countries.

Seán FitzgeraldDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.ORCID http://orcid.org/0000-0001-6634-092X
Rosanna RossiDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.ORCID http://orcid.org/0000-0002-3656-2908
Oana Madalina MereutaDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.ORCID http://orcid.org/0000-0003-3741-3784
Duaa JabrahDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.
Adaobi OkoloDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.
Andrew DouglasDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.
Sara Molina GilDepartment of Physiology, National University of Ireland Galway, Galway, Ireland.
Abhay PanditCÚRAM - SFI Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland.
Ray McCarthyCerenovus, Galway Neuro Technology Centre, Johnson and Johnson Medical Devices, Galway, Ireland.
Michael GilvarryCerenovus, Galway Neuro Technology Centre, Johnson and Johnson Medical Devices, Galway, Ireland.
Dennis DunkerDepartment of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, Göteborg, Sweden.
Annika NordanstigDepartment of Neurology, Sahlgrenska University Hospital, Göteborg, Sweden.
Erik CederDepartment of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, Göteborg, Sweden.
Petra RedforsDepartment of Neurology, Sahlgrenska University Hospital, Göteborg, Sweden.
Katarina JoodDepartment of Neurology, Sahlgrenska University Hospital, Göteborg, Sweden.
Niclas DehlforsDepartment of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, Göteborg, Sweden.
Georgios MagoufisDepartment of Interventional Neuroradiology, Metropolitan Hospital Athens, Piraeus, Greece.
Georgios TsivgoulisSecond Department of Neurology, "Attikon" Hospital, School of Medicine, National and Kapodistrian University of Athens School of Medicine, Athens, Greece.
Waleed BrinjikjiDepartment of Radiology, Mayo Clinic, Rochester, Minnesota, USA.ORCID http://orcid.org/0000-0001-5271-5524
David F KallmesDepartment of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Alan O'HareInterventional Neuroradiology Service, Department of Radiology, Beaumont Hospital, Dublin, Ireland.
Sarah PowerInterventional Neuroradiology Service, Department of Radiology, Beaumont Hospital, Dublin, Ireland.
Paul BrennanInterventional Neuroradiology Service, Department of Radiology, Beaumont Hospital, Dublin, Ireland.
Jack AldersonInterventional Neuroradiology Service, Department of Radiology, Beaumont Hospital, Dublin, Ireland.
András NagyDepartment of Neurointerventions, National Institute of Clinical Neurosciences, Budapest, Hungary.
Ágnes VadászDepartment of Neurointerventions, National Institute of Clinical Neurosciences, Budapest, Hungary.
Klearchos PsychogiosDepartment of Interventional Neuroradiology, Metropolitan Hospital Athens, Piraeus, Greece.
Istvan SzikoraDepartment of Neurointerventions, National Institute of Clinical Neurosciences, Budapest, Hungary.ORCID http://orcid.org/0000-0003-3730-3278
Turgut TatlisumakDepartment of Neurology, Sahlgrenska University Hospital, Göteborg, Sweden.
Alexandros RentzosDepartment of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, Göteborg, Sweden.
John ThorntonInterventional Neuroradiology Service, Department of Radiology, Beaumont Hospital, Dublin, Ireland.
Karen M DoyleDepartment of Physiology, National University of Ireland Galway, Galway, Ireland karen.doyle@nuigalway.ie.ORCID http://orcid.org/0000-0001-8984-6296
Ollscoil na Gaillimhe – University of Galway · IESahlgrenska University Hospital · SEBeaumont Hospital · IEOrszágos Idegsebészeti Tudományos Intézet · HUJohnson & Johnson (Ireland) · IEMayo Clinic · USNational and Kapodistrian University of Athens · GRMetropolitan Hospital · GR

Funding

Impact of Clot Histological and Physical Properties on Revascularization Strategies in Acute Ischaemic Stroke - Administrative SupplementR01NS105853 · NINDS · MAYO CLINIC ROCHESTER · PI BRINJIKJI, WALEED · 2018 to 2022
$2.0M
NINDS NIH HHS R01 NS105853
6 · The paper itself

Abstract

backgroundInitial studies investigating correlations between stroke etiology and clot composition are conflicting and do not account for clot size as determined by area. Radiological studies have shown that cardioembolic strokes are associated with shorter clot lengths and lower clot burden than non-cardioembolic clots.

objectiveTo report the relationship between stroke etiology, extracted clot area, and histological composition at each procedural pass.

methodsAs part of the multi-institutional RESTORE Registry, the Martius Scarlett Blue stained histological composition and extracted clot area of 612 per-pass clots retrieved from 441 patients during mechanical thrombectomy procedures were quantified. Correlations with clinical and procedural details were investigated.

resultsClot composition varied significantly with procedural passes; clots retrieved in earlier passes had higher red blood cell content (H4=11.644, p=0.020) and larger extracted clot area (H4=10.730, p=0.030). Later passes were associated with significantly higher fibrin (H4=12.935, p=0.012) and platelets/other (H4=15.977, p=0.003) content and smaller extracted clot area. Large artery atherosclerotic (LAA) clots were significantly larger in the extracted clot area and more red blood cell-rich than other etiologies in passes 1-3. Cardioembolic and cryptogenic clots had similar histological composition and extracted clot area across all procedural passes.

conclusionLAA clots are larger and associated with a large red blood cell-rich extracted clot area, suggesting soft thrombus material. Cardioembolic clots are smaller in the extracted clot area, consistent in composition and area across passes, and have higher fibrin and platelets/other content than LAA clots, making them stiffer clots. The per-pass histological composition and extracted clot area of cryptogenic clots are similar to those of cardioembolic clots, suggesting similar formation mechanisms.

Indexed as

Brain IschemiaIschemic StrokeStrokeThrombosisErythrocytesHumansThrombectomyatherosclerosisinterventionstrokethrombectomy

Identifiers

PMID33298510
PMCPMC8606448
OpenAlexW3113031530

What OpenQuestion holds

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LicenceCC BY
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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.