Evidence map›Paper›PMID 31471527›Full record

Trial reportJournal of neurointerventional surgery2020

First pass effect with contact aspiration and stent retrievers in the Aspiration versus Stent Retriever (ASTER) trial.

Célina Ducroux, Michel Piotin, Benjamin Gory, Julien Labreuche, Raphael Blanc, Malek Ben Maacha, Bertrand Lapergue, Robert Fahed, ASTER Trial investigators

Registry-linked trialAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of neurointerventional surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02523261 (Interest of Direct Aspiration First Pass Technique), which is not on this map. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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.

NCT02523261 nacompletednot on this map

Interest of Direct Aspiration First Pass Technique (ADAPT) for Thrombectomy Revascularisation of Large Vessel Occlusion in Acute Ischaemic Stroke

TypeinterventionalSponsorFondation Ophtalmologique Adolphe de RothschildRan2015 to 2017Enrolled381ConditionsIschemic Cerebrovascular AccidentArmsdirect aspiration procedure, stent retriever procedure
3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
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  5. Article
  6. Unfavorable clinical outcomes in patients with good collateral scores following endovascular treatment for acute ischemic stroke of the anterior circulation: The UNCLOSE study.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026
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  7. Article
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  10. Overcoming the black box of aspiration thrombectomy in acute ischemic stroke: An early clinical experience of using contrast injections to understand clot-catheter interactions.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  11. Article
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  17. Review
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  19. Initial clinical experience with a novel mechanical thrombectomy device-the ThrombX retriever.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 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

9 authors.

Célina DucrouxDepartment of Interventional Neuroradiology, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France.
Michel PiotinDepartment of Interventional Neuroradiology, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France.
Benjamin GoryDepartment of Neuroradiology, Centre Hospitalier Universitaire de Nancy, Nancy, France.
Julien LabreucheDepartment of Biostatistics, EA 2694-Santé Publique,Epidémiologie et Qualité des Soins, CHU Lille, Lille, France.
Raphael BlancDepartment of Interventional Neuroradiology, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France.
Malek Ben MaachaDepartment of Interventional Neuroradiology, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France.
Bertrand LapergueDepartment of Stroke Center, Foch Hospital, Suresnes, France.
Robert FahedDepartment of Interventional Neuroradiology, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France.ORCID http://orcid.org/0000-0002-1887-5097
ASTER Trial investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe 'first pass effect' (FPE), which was originally described with stent retrievers, designates a (near-)complete revascularization obtained after a single device pass with no rescue therapy, and is associated with improved clinical outcome and decreased mortality.

objectiveWe report the rate and benefits of FPE in the Aspiration versus Stent Retriever (ASTER) trial. MATERIALS AND

methodsASTER is a randomized trial comparing angiographic revascularization with the stent retriever (SR) and contact aspiration (CA) thrombectomy techniques, assessed by an external core laboratory using the modified Thrombolysis in Cerebral Infarction (mTICI) scale. Rates of FPE (defined by mTICI 2c/3 after a single pass with no rescue therapy) were compared between patients treated with SR and CA techniques. Outcomes were compared between FPE-SR and FPE-CA patients, and between FPE and non-FPE patients.

resultsFPE was achieved in 97/336 patients (28.9%), with no significant difference between SR and CA (respectively 53/169 patients (31.3%) vs 44/167 patients (26.3%), adjusted RR for CA versus SR 0.84, 95% CI 0.54 to 1.31; p=0.44). After prespecified adjustment for allocated arm and randomization stratification factors, FPE in patients was associated with a significantly improved clinical outcome and a decreased mortality, and a significantly lower rate of hemorrhagic transformation and procedural complications than in non-FPE patients.

conclusionIn the ASTER trial, similar rates of FPE were achieved with SR and CA, and FPE was associated with a significantly improved outcome. New techniques and devices to improve the rate of FPE are warranted. TRIAL REGISTRATION NUMBER: Unique identifier: NCT02523261.

Indexed as

StentsAgedAged, 80 and overBrain IschemiaCerebral AngiographyCerebral InfarctionDouble-Blind MethodEndovascular ProceduresFemaleHumansMaleMiddle AgedStrokeThrombectomyTreatment Outcomerecanalizationstrokethrombectomy

Identifiers

PMID31471527
PMCPMC7146919

What OpenQuestion holds

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Registered trials

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.