Evidence map›Paper›PMID 32029470›Full record

ArticleAJNR. American journal of neuroradiology2020

Endovascular Thrombectomy of Calcified Emboli in Acute Ischemic Stroke: A Multicenter Study.

C J Maurer, T Dobrocky, F Joachimski, U Neuberger, T Demerath, A Brehm, A Cianfoni, B Gory, A Berlis, J Gralla and 5 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in AJNR. American journal of neuroradiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
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  7. Article
  8. Persistent intracranial steno-occlusion from calcified embolism: a treatment challenge.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  9. Mechanical thrombectomy using the Nimbus stent-retriever - initial experiences in a single-center observational study.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
    Observational
  10. Article
  11. Review
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  15. Clot Morphology in Acute Ischemic Stroke Decision Making.International journal of molecular sciences · 2022
    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

15 authors at 9 institutions in 6 countries.

C J MaurerFrom the Departments of Diagnostic and Interventional Radiology and Neuroradiology (C.J.M., F.J., A.Berlis) Christoph.Maurer@uk-augsburg.de.ORCID 0000-0002-0305-0797
T DobrockyUniversity Institute of Diagnostic and Interventional Neuroradiology (T.Dobrocky, J.G.), University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0002-6167-3343
F JoachimskiFrom the Departments of Diagnostic and Interventional Radiology and Neuroradiology (C.J.M., F.J., A.Berlis).ORCID 0000-0001-8191-1858
U NeubergerDepartment of Neuroradiology (U.N., M.A.M.), University of Heidelberg, Heidelberg, Germany.ORCID 0000-0002-3085-3886
T DemerathDepartment of Neuroradiology (T.Demerath, A.Brehm, K.A.B., M.N.P.), Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland.ORCID 0000-0002-5869-1110
A BrehmDepartment of Neuroradiology (T.Demerath, A.Brehm, K.A.B., M.N.P.), Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland.ORCID 0000-0002-1630-6210
A CianfoniDepartment of Neuroradiology (A.C.), Neurocenter of Southern Switzerland, Lugano, Switzerland.ORCID 0000-0001-9333-4912
B GoryDepartment of Diagnostic and Therapeutic Neuroradiology (B.G.), University Hospital of Nancy, Institut National de la Santé et de la Recherche Médicale U1254, Nancy, France.ORCID 0000-0001-8424-4464
A BerlisFrom the Departments of Diagnostic and Interventional Radiology and Neuroradiology (C.J.M., F.J., A.Berlis).ORCID 0000-0001-5321-5118
J GrallaUniversity Institute of Diagnostic and Interventional Neuroradiology (T.Dobrocky, J.G.), University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0003-1953-9033
M A MöhlenbruchDepartment of Neuroradiology (U.N., M.A.M.), University of Heidelberg, Heidelberg, Germany.ORCID 0000-0002-5075-704X
K A BlackhamDepartment of Neuroradiology (T.Demerath, A.Brehm, K.A.B., M.N.P.), Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland.ORCID 0000-0002-1620-1144
M N PsychogiosDepartment of Neuroradiology (T.Demerath, A.Brehm, K.A.B., M.N.P.), Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland.ORCID 0000-0002-0016-414X
P ZicklerNeurology and Neurophysiology (P.Z.), Universitätsklinikum Augsburg, Augsburg, Germany.ORCID 0000-0002-2852-7360
S FischerInstitut für Diagnostische und Interventionelle Radiologie, Neuroradiologie (S.F.), Nuklearmedizin, Knappschaftskrankenhaus Bochum-Langendreer, Universitätsklinik, Bochum, Germany.ORCID 0000-0003-3267-917X
University Hospital of Basel · CHHeidelberg University · DEUniversity Hospital of Bern · CHUniversity of Augsburg · DECentre Hospitalier Régional et Universitaire de Nancy · FRLaboratory for Biomedical Neurosciences · CHSt Christopher's Hospice · GBUniversitätsklinikum Knappschaftskrankenhaus Bochum · DEUniversity Hospital Augsburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeLarge intracranial vessel occlusion due to calcified emboli is a rare cause of major stroke. We assessed the prevalence, imaging appearance, the effectiveness of mechanical thrombectomy, and clinical outcome of patients with large-vessel occlusion due to calcified emboli. MATERIALS AND

methodsWe performed a retrospective analysis of clinical and procedural data of consecutive patients who underwent mechanical thrombectomy due to calcified emboli in 7 European stroke centers.

resultsWe screened 2969 patients, and 40 patients matched the inclusion criteria, accounting for a prevalence of 1.3%. The mean maximal density of the thrombus was 327 HU (range, 150-1200 HU), and the mean thrombus length was 9.2 mm (range, 4-20 mm). Four patients had multiple calcified emboli, and 2 patients had an embolic event during an endovascular intervention. A modified TICI score of ≥2b was achieved in 57.5% (23/40), with minimal-to-no reperfusion (modified TICI 0-1) in 32.5% (13/40) and incomplete reperfusion (modified TICI 2a) in 10% (4/40). Excellent outcome (mRS 0-1) was achieved in only 20.6%, functional independence (mRS 0-2) in 26.5% and 90-day mortality was 55.9%.

conclusionsAcute ischemic stroke with large-vessel occlusion due to calcified emboli is a rare entity in patients undergoing thrombectomy, with considerably worse angiographic outcome and a higher mortality compared with patients with noncalcified thrombi. Good functional recovery at 3 months can still be achieved in about a quarter of patients.

Indexed as

AdultAgedAged, 80 and overBrain IschemiaCalcinosisEmbolismEndovascular ProceduresFemaleHumansMaleMiddle AgedRecovery of FunctionReperfusionRetrospective StudiesStrokeThrombectomy

Identifiers

PMID32029470
PMCPMC7077917
OpenAlexW3004787187

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.