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Record W4311605851 · doi:10.1177/15910199221142097

The initial experience with the Embotrap III stent-retriever in a real world setting

2022· article· en· W4311605851 on OpenAlexaboutno aff
Osama Omrani, Nema Hafezi-Bakhtiari, P.V. deSouza, Christos Nikola, Ken Wong, Joseph Lansley, Permesh Singh Dhillon, Levansri Makalanda, Nathan Chan, Thomas Harrison, A. W. Andrews, Isabel Siow, Keng Siang Lee, Leonard L.L. Yeo, Oliver Spooner, Pervinder Bhogal

Bibliographic record

VenueInterventional Neuroradiology · 2022
Typearticle
Languageen
FieldMedicine
TopicAcute Ischemic Stroke Management
Canadian institutionsnot available
FundersNational Institute for Health and Care Research
KeywordsMedicineDemographicsStentOcclusionLabrador RetrieverStroke (engine)Retrospective cohort studyCohortSurgeryRadiologyInternal medicine

Abstract

fetched live from OpenAlex

Stent-retriever based mechanical thrombectomy (MT) has gained wide acceptance as the treatment of choice for acute ischaemic stroke (AIS) caused by large vessel occlusion (LVO). The Embotrap 3 is the latest iteration within this class of device. We present our results using the new Embotrap 3 device. Materials and Methods We performed a retrospective review of our prospectively maintained database to identify all patients treated with the Embotrap 3 stent-retriever between January 2021 and January 2022. We recorded the baseline demographics, NIHSS, ASPECT score and clot characteristics, first pass and final eTICI scores, complications and 90 day mRS. Results One hundred and ten patients met the inclusion criteria, average age 69 ± 14 years, 50% were male ( n = 55). The median NIHSS at presentation was 18 (range 3–30) and 58.2% received IV tPA prior to MT. The median ASPECT score on plain CT was 8 with average clot length 20.2 ± 14.8 mm ( n = 93). The first pass effect (FPE) was seen in 41.8% of cases with modified FPE seen in 59.1%. A 24-hour CT scan ( n = 97) showed median ASPECTs of 7. 43.8% of patients achieve mRS ≤ 2 at 90-day mRS ( n = 64). Conclusion The Embotrap 3 stent-retriever has a high rate of FPE and final recanalization in this real world cohort of patients.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.044
Threshold uncertainty score0.464

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.031
GPT teacher head0.322
Teacher spread0.291 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations7
Published2022
Admission routes1
Has abstractyes

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