Evidence map›Paper›PMID 20532495›Full record

ArticleNeuroradiology2011

Initial experience with the Penumbra Stroke System for recanalization of large vessel occlusions in acute ischemic stroke.

Bijoy K Menon, Michael D Hill, Muneer Eesa, Jayesh Modi, Rohit Bhatia, John Wong, Mark E Hudon, Will Morrish, Andrew M Demchuk, Mayank Goyal

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Article in Neuroradiology, 2011. 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
5.7field-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

14 citing papers in PubMed, 47 citations in OpenAlex.

  1. Trial
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  6. Endovascular therapy for ischemic stroke.Journal of clinical neurology (Seoul, Korea) · 2015
    Review
  7. Review
  8. Article
  9. Article
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  12. A systems approach towards intra-arterial management of acute ischemic stroke: need for novel outcome measures and a focus on sequence rather than steps.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2011
    Article
  13. Review
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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

10 authors at 1 institution in 1 country.

Bijoy K MenonCalgary Stroke Program, University of Calgary, Calgary, AB, Canada. bkmmenon@ucalgary.ca
Michael D Hill
Muneer Eesa
Jayesh Modi
Rohit Bhatia
John Wong
Mark E Hudon
Will Morrish
Andrew M Demchuk
Mayank Goyal
University of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe Penumbra system is a newly approved mechanical device for the treatment of acute stroke designed for better and faster recanalization. We describe our initial experience with the use of this device.

methodsWe studied 27 consecutive patients with acute ischemic strokes due to arterial occlusions presenting at our center from January to October 2009. The primary outcome was the degree of recanalization measured by thrombolysis in myocardial infarction (TIMI grade 2/3) at the end of the procedure. Secondary end points were the proportion of patients who achieved a modified Rankin scale (mRS) ≤2 at 3 months, all-cause mortality and intracerebral hemorrhage (ICH) on non contrast computed tomography at 24 h. Procedural complications were also recorded.

resultsOf 27 patients (13 male, mean age 61 years) in the study, 22 (81%) patients had anterior circulation strokes and five (18%) had posterior circulation strokes. Twenty-three (85%) patients achieved TIMI grade 2/3 recanalization at completion of the procedure. Excluding five patients who needed use of a second device, the Penumbra system achieved TIMI grade 2/3 recanalization in 67% of patients. Thirteen (48%) patients had mRS ≤2 at 3-month follow-up. Procedural and post-procedural complications included vasospasm (3.7%), distal emboli (48.1%), and ICH (33.3%). The distribution of ICH is as follows: hemorrhagic infarct type 1 (25.9%), parenchymal hemorrhage type 1 (3.7%), and parenchymal hemorrhage type 2 (3.7%). All-cause mortality was 19%.

conclusionsHigh recanalization rates and good clinical outcomes are achievable with the Penumbra system. Complication rates are comparable to a previously published literature.

Indexed as

Acute DiseaseAgedBrain IschemiaCerebral AngiographyCerebral HemorrhageFemaleHumansIntracranial EmbolismIntracranial ThrombosisMaleMiddle AgedStrokeThrombectomyThrombolytic TherapyTreatment OutcomeVasospasm, Intracranial

Identifiers

PMID20532495
OpenAlexW2022531475

What OpenQuestion holds

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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.