Evidence map›Paper›PMID 31088246›Full record

ArticleInterventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences2019

Thrombectomy for M2 occlusions and the role of the dominant branch.

Luís Henrique de Castro Afonso, Guilherme Borghini Pazuello, Guilherme Seizem Nakiri, Lucas Moretti Monsignore, Francisco Antunes Dias, Octávio Marques Pontes-Neto, Daniel Giansante Abud

Abstract read
In one paragraph

Article in Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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.

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

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

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Article
  6. Article
  7. Comparing data from thrombectomy in m2 occlusion and proximal middle cerebral artery.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2023
    Article
  8. Review
  9. Article
  10. Article
  11. Aspiration thrombectomy as the first-line treatment of M2 occlusions.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2020
    Article
  12. Impact of early division of the middle cerebral artery on outcome following mechanical thrombectomy.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2020
    Article
  13. Predictors of Mechanical Thrombectomy for Anterior Circulation Emergent Large-Vessel Occlusion in the Older Adults.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    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

7 authors.

Luís Henrique de Castro AfonsoDivision of Interventional Neuroradiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.ORCID https://orcid.org/0000-0002-8979-3283
Guilherme Borghini PazuelloDivision of Interventional Neuroradiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Guilherme Seizem NakiriDivision of Interventional Neuroradiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Lucas Moretti MonsignoreDivision of Interventional Neuroradiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Francisco Antunes DiasDepartment of Neurology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Octávio Marques Pontes-NetoDepartment of Neurology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Daniel Giansante AbudDivision of Interventional Neuroradiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe benefits of thrombectomy for occlusion of M2 segments remain controversial. The aim of this study is to assess thrombectomy's efficacy and safety in patients with M2 segment occlusion and associations between occlusion sites and anatomic variations of M1 division. MATERIALS AND

methodsA prospective series of 30 patients with acute ischemic stroke (AIS) resulting from M2 segment occlusion of the middle cerebral artery (MCA) who underwent thrombectomy was analyzed. The primary endpoint was assessed by the Extended Treatment in Cerebral Infarction scale (eTICI). The secondary endpoints were the incidence of symptomatic hemorrhagic transformation (sICH), mortality and good functional outcome at three months.

resultsThe mean patient age was 69.2 years. The mean National Institutes Health Stroke Scale score (NIHSS) upon hospital admission was 16. The recanalization rates were eTICI 2b/3 in 90% and 2c/3 in 60% of the patients. Total recanalization of the M2 branch was achieved in 53% of patients. sICH incidence was 6.6%, the mortality rate was 30%, and a good functional outcome (mRS ≤2) was observed in 50% of the patients. Twenty-seven patients (90%) had a dominant M2 branch and all were occluded. Regarding the site of M2 occlusions, 74% of patients had proximal M2 occlusions.

conclusionsThrombectomy appears to be a safe and effective method for the treatment of acute M2 segment occlusions of the MCA. Most of the cases had a dominant M2 branch, and all of them were occluded. Larger studies are needed to verify the benefits of thrombectomy for different settings of M2 occlusions.

Indexed as

AgedCerebral AngiographyFemaleHumansInfarction, Middle Cerebral ArteryMaleProspective StudiesStrokeThrombectomyTomography, X-Ray ComputedAcute strokeM2 occlusionthrombectomy

Identifiers

PMID31088246
PMCPMC6838850

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.