Evidence map›Paper›PMID 33514609›Full record

SynthesisJournal of neurointerventional surgery2021

Safety and efficacy of intra-arterial fibrinolytics as adjunct to mechanical thrombectomy: a systematic review and meta-analysis of observational data.

Johannes Kaesmacher, Thomas Raphael Meinel, Christoph Kurmann, Osama O Zaidat, Alicia C Castonguay, Syed F Zaidi, Nils Mueller-Kronast, Manon Kappelhof, Diederik W J Dippel, Marc Soudant and 17 more

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis 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 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
6.6field-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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 55 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

27 authors at 13 institutions in 7 countries.

Johannes KaesmacherUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland johannes.kaesmacher@insel.ch.ORCID http://orcid.org/0000-0002-9177-2289
Thomas Raphael MeinelDepartment of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.ORCID http://orcid.org/0000-0002-0647-9273
Christoph KurmannUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
Osama O ZaidatNeuroscience, St Vincent Mercy Hospital, Toledo, Ohio, USA.ORCID http://orcid.org/0000-0003-4881-4698
Alicia C CastonguayNeurology, University of Toledo Health Science Campus, Toledo, Ohio, USA.
Syed F ZaidiNeurology, University of Toledo Health Science Campus, Toledo, Ohio, USA.
Nils Mueller-KronastNeurology, St. Mary's Medical Center, Delray Medical Center, Boynton Beach, Florida, USA.
Manon KappelhofDepartment of Radiology and Nuclear Medicine, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Diederik W J DippelNeurology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.ORCID http://orcid.org/0000-0002-9234-3515
Marc SoudantClinical Investigation Centre-Clinical Epidemiology 1433, INSERM, University Hospital Centre Nancy, Université de Lorraine, Nancy, France.
Serge BracardNeuroradiology, CHRU-Nancy, University de Lorraine, Nancy, France.
Michael D HillClinical Neurosciences, University Of Calgary, Calgary, Alberta, Canada.ORCID http://orcid.org/0000-0002-6269-1543
Mayank GoyalDiagnostic Imaging, University of Calgary, Calgary, Alberta, Canada.ORCID http://orcid.org/0000-0001-9060-2109
Daniel StrbianNeurology, University of Helsinki, Helsinki, Finland.
Daniel M HeifermanNeuroradiology, Semmes Murphey Clinic, Memphis, Tennessee, USA.ORCID http://orcid.org/0000-0002-1302-0655
William AshleyNeurosurgery, The Sandra and Malcolm Berman Brain and Spine Institute, Sinai Hospital and LifeBridge Health System, Baltimore, Maryland, USA.
Mohammad AnadaniNeurology, Washington University School of Medicine, Saint Louis, Missouri, USA.ORCID http://orcid.org/0000-0002-7813-2949
Alejandro M SpiottaNeurology, Medical University of South Carolina - College of Medicine, Charleston, South Carolina, USA.
Tomas DobrockyUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.ORCID http://orcid.org/0000-0002-6167-3343
Eike I PiechowiakUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.ORCID http://orcid.org/0000-0001-5609-0998
Marcel ArnoldDepartment of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
Martina GoeldlinDepartment of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
David SeiffgeDepartment of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
Pascal J MosimannUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
Pasquale MordasiniUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
Jan GrallaUniversity Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
Urs FischerDepartment of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
University of Bern · CHMedical University of South Carolina · USUniversity of Calgary · CAUniversity of Toledo · USDelray Medical Center · USErasmus MC · NLInserm · FRMercy Medical Center · USSemmes Murphey Foundation · USSinai Hospital · USUniversité de Lorraine · FRUniversity of Amsterdam · NLUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAchieving the best possible reperfusion is a key determinant of clinical outcome after mechanical thrombectomy (MT). However, data on the safety and efficacy of intra-arterial (IA) fibrinolytics as an adjunct to MT with the intention to improve reperfusion are sparse.

methodsWe performed a PROSPERO-registered (CRD42020149124) systematic review and meta-analysis accessing MEDLINE, PubMed, and Embase from January 1, 2000 to January 1, 2020. A random-effect estimate (Mantel-Haenszel) was computed and summary OR with 95% CI were used as a measure of added IA fibrinolytics versus control on the risk of symptomatic intracranial hemorrhage (sICH) and secondary endpoints (modified Rankin Scale ≤2, mortality at 90 days).

resultsThe search identified six observational cohort studies and three observational datasets of MT randomized-controlled trial data reporting on IA fibrinolytics with MT as compared with MT alone, including 2797 patients (405 with additional IA fibrinolytics (100 urokinase (uPA), 305 tissue plasminogen activator (tPA)) and 2392 patients without IA fibrinolytics). Of 405 MT patients treated with additional IA fibrinolytics, 209 (51.6%) received prior intravenous tPA. We did not observe an increased risk of sICH after administration of IA fibrinolytics as adjunct to MT (OR 1.06, 95% CI 0.64 to 1.76), nor excess mortality (0.81, 95% CI 0.60 to 1.08). Although the mode of reporting was heterogeneous, some studies observed improved reperfusion after IA fibrinolytics.

conclusionThe quality of evidence regarding peri-interventional administration of IA fibrinolytics in MT is low and limited to observational data. In highly selected patients, no increase in sICH was observed, but there is large uncertainty.

Indexed as

Brain IschemiaStrokeFibrinolytic AgentsHumansThrombectomyThrombolytic TherapyTissue Plasminogen ActivatorTreatment OutcomeFibrinolytic AgentsTissue Plasminogen Activatorstrokethrombectomythrombolysis

Identifiers

PMID33514609
PMCPMC8606438
OpenAlexW3123276546

What OpenQuestion holds

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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 OpenQuestion graph.