Evidence map›Paper›PMID 34750110›Full record

ArticleJournal of neurointerventional surgery2022

Cerebral venous outflow profiles are associated with the first pass effect in endovascular thrombectomy.

Noel van Horn, Jeremy J Heit, Reza Kabiri, Marius M Mader, Soren Christensen, Michael Mlynash, Gabriel Broocks, Lukas Meyer, Jawed Nawabi, Maarten G Lansberg and 4 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Journal of neurointerventional surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

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  12. Poor venous outflow profiles increase the risk of reperfusion hemorrhage after endovascular treatment.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
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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

14 authors at 4 institutions in 2 countries.

Noel van HornDepartment of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany no.vanhorn@uke.de.ORCID http://orcid.org/0000-0001-5764-1982
Jeremy J HeitDepartment of Radiology, Stanford University School of Medicine, Stanford, California, USA.ORCID http://orcid.org/0000-0003-1055-8000
Reza KabiriDepartment of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Marius M MaderDepartment of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Hamburg, Germany.
Soren ChristensenDepartment of Neurology and Neurological Sciences, Stanford, Stanford, California, USA.
Michael MlynashDepartment of Neurology and Neurological Sciences, Stanford, Stanford, California, USA.
Gabriel BroocksDepartment of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.ORCID http://orcid.org/0000-0002-7575-9850
Lukas MeyerDepartment of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.ORCID http://orcid.org/0000-0002-3776-638X
Jawed NawabiDepartment of Radiology, Charité School of Medicine and University Hospital Berlin, Berlin, Germany.
Maarten G LansbergDepartment of Neurology and Neurological Sciences, Stanford, Stanford, California, USA.
Gregory W AlbersDepartment of Neurology and Neurological Sciences, Stanford, Stanford, California, USA.
Max WintermarkDepartment of Radiology, Stanford University School of Medicine, Stanford, California, USA.
Jens FiehlerDepartment of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.ORCID http://orcid.org/0000-0001-8533-7478
Tobias D FaizyDepartment of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Universität Hamburg · DEStanford Medicine · USStanford University · USCharité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies found that favorable venous outflow (VO) profiles are associated with higher reperfusion rates after mechanical thrombectomy (MT) in patients with acute ischemic stroke due to large vessel occlusion (AIS-LVO). Fewer retrieval attempts and first-pass revascularization during MT lead to better functional outcomes.

objectiveTo examine the hypothesis that favorable VO profiles assessed on baseline CT angiography (CTA) images correlate with successful vessel reperfusion after the first retrieval attempt and fewer retrieval attempts.

methodsA multicenter retrospective cohort study of patients with AIS-LVO treated by MT. Baseline CTA was used to determine the cortical vein opacification score (COVES). Favorable VO was defined as COVES ≥3. Primary outcomes were successful with excellent vessel reperfusion status, defined as Thrombolysis in Cerebral Infarction (TICI) 2b/3 and 2c/3 after first retrieval attempt.

results617 patients were included in this study, of whom 205 (33.2%) had first pass reperfusion. In univariate analysis, ordinal COVES (p=0.011) values were significantly higher in patients with first pass than in those with non-first pass reperfusion, while the number of patients exhibiting favorable pial arterial collaterals using the Maas scale on CTA did not differ (p=0.243). In multivariable logistic regression analysis, higher COVES were independently associated with TICI 2b/3 (OR=1.25, 95% CI 1.1 to 1.42; p=0.001) and TICI 2c/3 (OR=1.2, 95% CI 1.04 to 1.36; p=0.011) reperfusion after one retrieval attempt, controlling for penumbra volume and time from symptom onset to vessel reperfusion.

conclusionsFavorable VO, classified as higher COVES, is independently associated with successful and excellent first pass reperfusion in patients with AIS-LVO treated by endovascular thrombectomy.

Indexed as

Brain IschemiaEndovascular ProceduresIschemic StrokeStrokeCerebral InfarctionHumansRetrospective StudiesThrombectomyTreatment Outcomeblood flowbrainCT angiographystrokethrombectomy

Identifiers

PMID34750110
PMCPMC9606492
OpenAlexW3212308936

What OpenQuestion holds

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LicenceCC BY-NC
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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.