Evidence map›Paper›PMID 32894352›Full record

ArticleClinical neuroradiology2021

Reasons for Failed Mechanical Thrombectomy in Posterior Circulation Ischemic Stroke Patients.

Charlotte S Weyland, Ulf Neuberger, Arne Potreck, Johannes A R Pfaff, Simon Nagel, Silvia Schönenberger, Martin Bendszus, Markus A Möhlenbruch

Abstract read
In one paragraph

Article in Clinical neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 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.

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, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. RESCUE-ICAS: Rationale and Study Design.Stroke (Hoboken, N.J.) · 2023
    Trial
  3. Article
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  5. Mechanical thrombectomy failure in anterior and posterior circulation stroke: current results from a high-volume comprehensive center.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Article
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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

8 authors.

Charlotte S WeylandDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0002-1374-7854
Ulf NeubergerDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0002-0287-6714
Arne PotreckDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0001-9206-2636
Johannes A R PfaffDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0003-0672-5718
Simon NagelDepartment of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0003-2471-6647
Silvia SchönenbergerDepartment of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0002-3348-6719
Martin BendszusDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.ORCID http://orcid.org/0000-0002-9094-6769
Markus A MöhlenbruchDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. markus.moehlenbruch@med.uni-heidelberg.de.ORCID http://orcid.org/0000-0002-5075-704X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeTo determine reasons for failed recanalization in mechanical thrombectomy (MT) of the posterior circulation.

methodsRetrospective single center analysis of reasons for MT failure in the posterior circulation. Failed MTs were categorized according to the reason for procedure failure in failed vascular access, failed passage of the target vessel occlusion and MT failure after passing the occluded target vessel. Patient characteristics were compared between failed and successful MT.

resultsPatients with failed MT (30/218 patients, 13.8%) were categorized into futile vascular access (13/30, 43.3%), abortive passage of the target vessel occlusion (6/30, 20.0%) and MT failure after passing the vessel occlusion (11/30, 36.7%). In 188/218 (86.2%) successful MTs alternative vascular access, local intra-arterial (i.a.) thrombolysis and emergency stent-assisted PTA prevented 65 MT failures. Patients with failed MT showed a higher NIHSS at discharge, a higher pc-ASPECTS in follow-up imaging, a higher mRS 90 days after stroke onset and a high mortality rate of 77.0% (mRS at 90 days, median (IQR): 6 (6-6) vs. 4 (2-6) for successful MT, p-value < 0.001). Co-morbidities and stroke etiology were not different compared to sufficient recanalization with atherosclerotic disease as the leading stroke etiology in both groups.

conclusionFailure of MT in posterior circulation ischemic stroke patients is associated with a high mortality rate. Reasons for MT failure are diverse with futile vascular access and MT failure after passing the vessel occlusion as the leading causes. Alternative vascular access, local i.a. thrombolysis and stent-assisted PTA can prevent MT failure.

Indexed as

Brain IschemiaIschemic StrokeStrokeHumansRetrospective StudiesThrombectomyTreatment OutcomeAlternative vascular accessIntracranial stentingLocal thrombolysisMortalityRescue strategies

Identifiers

PMID32894352
PMCPMC8463404

What OpenQuestion holds

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Registered trials

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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.