Evidence map›Paper›PMID 33641037›Full record

SynthesisTranslational stroke research2021

Efficacy and Safety of Intravenous rtPA in Ischemic Strokes Due to Small-Vessel Occlusion: Systematic Review and Meta-Analysis.

Bartosz Karaszewski, Adam Wyszomirski, Bartosz Jabłoński, David J Werring, Dominika Tomaka

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Translational stroke research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Early neurological deterioration in acute lacunar ischemic stroke: Systematic review of incidence, mechanisms, and prospects for treatment.International journal of stroke : official journal of the International Stroke Society · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Observational
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Cerebral small vessel disease and intracranial bleeding risk: Prognostic and practical significance.International journal of stroke : official journal of the International Stroke Society · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. New Remote Cerebral Microbleeds on T2Frontiers in neurology · 2021
    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

5 authors at 3 institutions in 2 countries.

Bartosz KaraszewskiDepartment of Adult Neurology, Division of Neurology, Faculty of Medicine, Medical University of Gdansk, Poland, Gdansk, Poland. bartosz@karaszewski.org.ORCID 0000-0003-2726-0016
Adam WyszomirskiDepartment of Adult Neurology, Division of Neurology, Faculty of Medicine, Medical University of Gdansk, Poland, Gdansk, Poland.ORCID 0000-0002-6293-1439
Bartosz JabłońskiDepartment of Adult Neurology, Division of Neurology, Faculty of Medicine, Medical University of Gdansk, Poland, Gdansk, Poland.ORCID 0000-0002-1657-5090
David J WerringStroke Research Centre, University College London, Queen Square Institute of Neurology, London, UK.ORCID 0000-0003-2074-1861
Dominika TomakaDepartment of Adult Neurology, University Clinical Center in Gdansk, Poland, Debinki 7, 80-211, Gdansk, Poland.
Gdańsk Medical University · PLNational Hospital for Neurology and Neurosurgery · GBUniversity of Gdańsk · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intravenous recombinant tissue plasminogen activator (iv-rtPA) has been routinely used to treat ischemic stroke for 25 years, following large clinical trials. However, there are few prospective studies on the efficacy and safety of this therapy in strokes attributed to cerebral small vessel disease (SVD). We evaluated functional outcome (modified Rankin scale, mRS) and symptomatic intracerebral hemorrhage (sICH) using all available data on the effects of iv-rtPA in SVD-related ischemic stroke (defined either using neuroimaging, clinical features, or both). Using fixed-effect and random-effects models, we calculated the pooled effect estimates with regard to excellent and favorable outcomes (mRS=0-1 and 0-2 respectively, at 3 months), and the rate of sICH. Twenty-three studies fulfilled the eligibility criteria, 11 of which were comparative, and there were only 3 randomized clinical trials. In adjusted analyses, there was an increased odds of excellent outcome (adjusted OR=1.53, 95% CI: 1.29-1.82, I2: 0%) or favorable outcome (adjusted OR=1.68, 95% CI: 1.31-2.15,I2: 0%) in patients who received iv-rtPA compared with placebo. Across the six studies which reported it, the incidence of sICH was higher in the treatment group (M-H RR = 8.83, 95% CI: 2.76-28.27). The pooled rate of sICH in patients with SVD administered iv-rtPA was only 0.72% (95% CI: 0.12%-1.64%). We conclude that when ischemic stroke attributed to SVD is considered separately, available data on the effects of iv-rtPA therapy are insufficient for the highest level of recommendation, but it seems to be safe. Although further therapeutic trials in SVD-related ischemic stroke appear to be justified, our findings should not prevent its continued use for this group of patients in clinical practice.

Indexed as

Brain IschemiaIschemic StrokeStrokeFibrinolytic AgentsHumansProspective StudiesThrombolytic TherapyTissue Plasminogen ActivatorTreatment OutcomeFibrinolytic AgentsTissue Plasminogen ActivatorBrain ischemiaLacunar infarctionMeta-analysisSmall vessel diseaseStrokeThrombolysis

Identifiers

PMID33641037
PMCPMC8055574
OpenAlexW3134833477

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.