Evidence map›Paper›PMID 34464222›Full record

ArticleThe neuroradiology journal2022

First pass effect vs multiple passes complete reperfusion: A retrospective study.

Ameer E Hassan, Mahmoud Dibas, Amrou Sarraj, Sherief Ghozy, Amr Ehab El-Qushayri, Adam A Dmytriw, Wondwossen G Tekle

Abstract read
In one paragraph

Article in The neuroradiology journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. 2b Or 2c-3? A meta-analysis of first pass thrombolysis in cerebral infarction 2b vs multiple pass thrombolysis in cerebral infarction 2c-3 following mechanical thrombectomy for stroke.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026
    Pooled it
  2. Review
  3. Push and Fluff technique for optimization of clot integration with stent-retriever: An in vitro model.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
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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

7 authors.

Ameer E HassanDepartment of Neurology, University of Texas Rio Grande Valley, Valley Baptist Medical Center - Harlingen, TX, USA.
Mahmoud DibasDepartment of Neurology, University of Texas Rio Grande Valley, Valley Baptist Medical Center - Harlingen, TX, USA.ORCID https://orcid.org/0000-0003-1690-1084
Amrou SarrajDepartment of Neurology, University of Texas at Houston Stroke Center, Houston, TX, USA.
Sherief GhozyFaculty of Medicine, Mansoura University, Mansoura, Egypt.ORCID https://orcid.org/0000-0001-5629-3023
Amr Ehab El-QushayriFaculty of Medicine, Minia University, Minia, Egypt.
Adam A DmytriwNeuroradiology and Neurointervention Service, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.ORCID https://orcid.org/0000-0003-0131-5699
Wondwossen G TekleDepartment of Neurology, University of Texas Rio Grande Valley, Valley Baptist Medical Center - Harlingen, TX, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeFirst pass effect (FPE) is defined as achieving modified treatment in cerebral infarction (mTICI) grade 2c/3 reperfusion from the first pass and is associated with more favorable outcomes. We aimed to compare FPE and non-FPE using a large database and further compare first-pass mTICI 2b with multiple passes mTICI 3.

methodsA retrospective cohort study of acute ischemic stroke patients who received mechanical thrombectomy at a high-volume center was performed. Baseline characteristics and outcomes including rates of discharge and 90-day functional independence (modified Rankin Scale ≤2), mortality, symptomatic, and asymptomatic intracerebral hemorrhage were compared.

resultsOf the 637 patients included, 294 achieved FPE; 161 patients had multiple passes mTICI 3 and 36 had first pass mTICI 2b. Propensity-score matching resulted in 211 matched pairs for FPE vs non-FPE, and 30 matched pairs for multiple passes mTICI 3 vs first pass mTICI 2b. The FPE group had significantly more instances of discharge (33.6% vs 19.4%,

conclusionsFirst pass mTICI 2c/3 is safer and is associated with higher rates of functional independence. We did not observe a significant difference between first pass mTICI 2b and multiple passes mTICI 3. The limitations of this study prevent us from drawing conclusions related to the difference between them and calls for future large-scale studies to explore that further.

Indexed as

Brain IschemiaIschemic StrokeStrokeCerebral InfarctionHumansReperfusionRetrospective StudiesThrombectomyTreatment OutcomeFirst passrecanalizationstrokethrombectomy

Identifiers

PMID34464222
PMCPMC9244755

What OpenQuestion holds

Textmetadata
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.