Evidence map›Paper›PMID 41071221›Full record

SynthesisNeurosurgical review2025

Endovascular thrombectomy for distal medium vessel occlusion stroke: A meta-analysis of randomized controlled trials.

Ali Mortezaei, Nadir Al-Saidi, Khaled M Taghlabi, Ibrahim Mohammadzadeh, Bardia Hajikarimloo, Mohammad Amin Habibi, Robert W Regenhardt, Joshua S Catapano, Jan-Karl Burkhardt, Redi Rahmani and 4 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Neurosurgical review, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. MeVO: To Treat or Not To Treat? Review of the Latest Evidence.Current neurology and neuroscience reports · 2026
    Review
  2. Article
  3. Review
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.

Ali MortezaeiStudent Research Committee, Gonabad University of Medical Sciences, Gonabad, Iran.
Nadir Al-SaidiCollege of Medicine, Central Michigan University, Mount Pleasant, MI, USA.
Khaled M TaghlabiClinical Innovations Laboratory, Houston Methodist Research Institute, Houston, TX, USA.
Ibrahim MohammadzadehSkull Base Research Center, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Bardia HajikarimlooDepartment of Neurological Surgery, University of Virginia, Charlottesville, VA, USA.
Mohammad Amin HabibiDepartment of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Robert W RegenhardtDepartment of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Joshua S CatapanoDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA.
Jan-Karl BurkhardtDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA.
Redi RahmaniDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA.
Adam A DmytriwNeuroendovascular Program, Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical, School, Boston, MA, 02114, USA.
Amir H FarajiClinical Innovations Laboratory, Houston Methodist Research Institute, Houston, TX, USA.
Vivek S YedavalliDepartment of Radiology and Radiological Sciences, The Johns Hopkins Hospital, Baltimore, MD, USA.
Visish M SrinivasanDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA. visishs@upenn.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The efficacy of endovascular thrombectomy (EVT) for acute ischemic stroke (AIS) resulting from distal medium vessel occlusion (DMVO) remains uncertain. This systematic review and meta-analysis aimed to provide a comprehensive assessment of EVT in AIS due to DMVO, based on evidence derived from randomized controlled trials (RCTs). We systematically reviewed four electronic databases to find relevant studies. Risk ratios (RRs) and mean differences (MDs) with 95% confidence intervals (CIs) were calculated for categorical and continuous outcomes, respectively. Significant heterogenicity was resolved with leave-one-out influence analysis. There were 601 patients in the EVT plus best medical treatment (BMT) group and 623 patients in the BMT alone group. Findings showed a significantly higher rate of serious adverse events (RR = 1.3, 95%CI: 1.1-1.5, P < 0.01) and symptomatic intracranial hemorrhage (RR = 3.3, 95%CI: 1.8-5.9, P < 0.01) in thrombectomy than the control group. There was no significant difference between two groups in 90-day functional excellence (mRS 0-1), functional independence (mRS 0-2), and mortality. Subgroup analysis, including the three DMVO trials and the two secondary analyses of previous LVO RCTs, confirmed the prior findings. Leave-one-out influence analysis showed no significant heterogeneity in any primary and secondary outcomes. Our findings indicate that while EVT does not provide a significant advantage over BMT alone in improving functional outcomes for patients with DMVO, it is associated with an increased risk of hemorrhagic complications. These results underscore the importance of a cautious approach when considering EVT for DMVO and emphasize the need for further RCTs to optimize treatment strategies.

Indexed as

Endovascular ProceduresIschemic StrokeStrokeThrombectomyHumansRandomized Controlled Trials as TopicTreatment OutcomeAcute ischemic strokeDistal medium vessel occlusionDMVOEndovascular thrombectomy

Identifiers

PMID41071221
PMCPMC12513949

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.