Evidence map›Paper›PMID 34503942›Full record

SynthesisEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology2022

Mechanical thrombectomy with retrievable stents and aspiration catheters for acute ischaemic stroke: a meta-analysis of randomised controlled trials.

Christopher A Rajkumar, Sashiananthan Ganesananthan, Yousif Ahmad, Henry Seligman, George D Thornton, Michael Foley, Alexandra N Nowbar, James P Howard, Darrel P Francis, Thomas R Keeble and 4 more

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. RESCUE-ICAS: Rationale and Study Design.Stroke (Hoboken, N.J.) · 2023
    Trial
  3. Article
  4. Endovascular treatment of tandem lesions in a novel cadaveric stroke model.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2025
    Article
  5. Article
  6. Observational
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Stroke thrombectomy (± thrombolysis), and not thrombolysis alone, should be the gold standard for stroke treatment.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2022
    Article
  13. Review
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

14 authors at 5 institutions in 2 countries.

Christopher A RajkumarNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Sashiananthan GanesananthanNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Yousif AhmadNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Henry SeligmanNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
George D ThorntonUniversity College London, London, United Kingdom.
Michael FoleyNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Alexandra N NowbarNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
James P HowardNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Darrel P FrancisNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Thomas R KeebleEssex Cardiothoracic Centre, Basildon, United Kingdom.
Iris Q GrunwaldAnglia Ruskin School of Medicine, Chelmsford, Essex, United Kingdom.
Rasha K Al-LameeNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Iqbal MalikImperial College Healthcare NHS Trust, London, United Kingdom.
Matthew J Shun-ShinNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Imperial College Healthcare NHS Trust · GBImperial College London · GBAnglia Ruskin University · GBCedars-Sinai Medical Center · USUniversity College London · GB

Funding

British Heart Foundation FS/CRTF/21/24128British Heart Foundation FS/ICRF/22/26039Medical Research Council MR/S021108/1Medical Research Council MR/V001620/1Wellcome Trust
6 · The paper itself

Abstract

backgroundRetrievable stents and aspiration catheters have been developed to provide more effective arterial recanalisation in acute ischaemic stroke.

aimsThe aim of this analysis was to test the effect of mechanical thrombectomy on mortality and long-term neurological outcome in patients presenting with acute large-vessel anterior circulation ischaemic stroke.

methodsA structured search identified randomised controlled trials of thrombectomy (using a retrievable stent or aspiration catheter) versus control on a background of medical therapy which included intravenous thrombolysis if appropriate. The primary endpoint was disability at 90-day follow-up as assessed by the modified Rankin scale (mRS). Secondary endpoints included all-cause mortality and symptomatic intracranial haemorrhage. A Bayesian mixed-effects model was used for analysis.

resultsTwelve trials met the inclusion criteria, comprising a total of 1,276 patients randomised to thrombectomy and 1,282 patients to control. Randomisation to thrombectomy significantly reduced disability at 90 days (odds ratio [OR] 0.52, 95% credible interval [CrI] 0.46 to 0.61, probability

conclusionsIn patients with an acute anterior circulation stroke, modern device thrombectomy significantly reduces death and subsequent disability. The magnitude of these effects suggests that universal access to this treatment strategy should be the standard of care.

Indexed as

Brain IschemiaEndovascular ProceduresIschemic StrokeStrokeBayes TheoremCathetersHumansRandomized Controlled Trials as TopicStentsThrombectomyTreatment Outcome

Identifiers

PMID34503942
PMCPMC9896406
OpenAlexW3198015928

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.