Evidence map›Paper›PMID 35725244›Full record

SynthesisStroke and vascular neurology2022

Endovascular thrombectomy with or without intravenous alteplase for acute ischemic stroke due to large vessel occlusion: a systematic review and meta-analysis of randomized trials.

Xin Wang, Zhikang Ye, Jason W Busse, Michael D Hill, Eric E Smith, Gordon H Guyatt, Kameshwar Prasad, M Patrice Lindsay, Hui Yang, Yi Zhang and 6 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Stroke and vascular neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
4.8field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

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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

16 authors at 6 institutions in 3 countries.

Xin WangDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Zhikang YeDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Jason W BusseMichael G DeGroote National Pain Centre, McMaster University, Hamilton, Ontario, Canada.
Michael D HillDepartment of Clinical Neurosciences and Hotchkiss Brain Institute, Departments of Medicine, Community Health Sciences and Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Eric E SmithDepartment of Clinical Neurosciences and Calgary Stroke Program, University of Calgary, Calgary, Alberta, Canada.ORCID 0000-0003-3956-1668
Gordon H GuyattDepartment of Health Research Methods Evidence and Impact, McMaster University, Hamilton, Ontario, Canada.
Kameshwar PrasadProfessor of neurology and Director, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India.
M Patrice LindsayHeart and Stroke Foundation of Canada, Toronto, Ontario, Canada.
Hui YangDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Yi ZhangDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Ying LiuDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Borui TangDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Xinrui WangDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Yushu WangDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Rachel J CoubanDeGroote Institute for Pain Research and Care, McMaster University, Hamilton, Ontario, Canada.
Zhuoling AnDepartment of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China anzhuoling@163.com.ORCID 0000-0002-7996-5002
Capital Medical University · CNImpact · CAUniversity of Calgary · CAHeart and Stroke Foundation · CAMcMaster University · CARajendra Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAmong patients who had an ischaemic stroke presenting directly to a stroke centre where endovascular thrombectomy (EVT) is immediately available, there is uncertainty regarding the role of intravenous thrombolysis agents before or concurrently with EVT. To support a rapid guideline, we conducted a systematic review and meta-analysis to examine the impact of EVT alone versus EVT with intravenous alteplase in patients who had an acute ischaemic stroke due to large vessel occlusion.

methodsIn November 2021, we searched MEDLINE, Embase, PubMed, Cochrane, Web of Science, clincialtrials.gov and the ISRCTN registry for randomised controlled trials (RCTs) comparing EVT alone versus EVT with alteplase for acute ischaemic stroke. We conducted meta-analyses using fixed effects models and assessed the certainty of evidence using the GRADE approach.

resultsIn total 6 RCTs including 2334 participants were eligible. Low certainty evidence suggests that, compared with EVT and alteplase, there is possibly a small decrease in the proportion of patients independent with EVT alone (risk ratio (RR) 0.97, 95% CI 0.89 to 1.05; risk difference (RD) -1.5%; 95% CI -5.4% to 2.5%), and possibly a small increase in mortality with EVT alone (RR 1.07, 95% CI 0.88 to 1.29; RD 1.2%, 95% CI -2.0% to 4.9%) . Moderate certainty evidence suggests that there is probably a small decrease in symptomatic intracranial haemorrhage (sICH) with EVT alone (RR 0.75, 95% CI 0.52 to 1.07; RD -1.0%; 95%CI -1.8% to 0.27%).

conclusionsLow certainty evidence suggests that there is possibly a small decrease in the proportion of patients that achieve functional independence and a small increase in mortality with EVT alone. Moderate certainty evidence suggests that there is probably a small decrease in sICH with EVT alone. The accompanying guideline provides contextualised guidance based on this body of evidence. PROSPERO REGISTRATION NUMBER: CRD42021249873.

Indexed as

Brain IschemiaEndovascular ProceduresIschemic StrokeTissue Plasminogen ActivatorHumansIntracranial HemorrhagesRandomized Controlled Trials as TopicThrombectomyThrombolytic TherapyTreatment OutcomeTissue Plasminogen Activatorstroke

Identifiers

PMID35725244
PMCPMC9811536
OpenAlexW4283168688

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.