Evidence map›Paper›PMID 38149620›Full record

ArticleEuropean stroke journal2024

Detection of microemboli in patients with acute ischaemic stroke and atrial fibrillation suggests poor functional outcome.

Pedro Castro, J Ferreira, Branko Malojcic, Danira Bazadona, Claudio Baracchini, Alessio Pieroni, David Skoloudik, Elsa Azevedo, Manfred Kaps

2 registry-linked trialsOpen access · greenAbstract readMulticenter Study
In one paragraph

Article in European stroke journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this 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
1.5field-weighted citation impact, top 16% 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.

NCT06018090 completednot on this map

Microembolic Detection in Acute Ischemic Stroke Patients With Atrial Fibrillation and Outcome - A Prospective Multicenter Study With Transcranial Doppler

Typeobservational_patient_registrySponsorCentro Hospitalar De São João, E.P.E.Ran2019 to 2022Enrolled61ConditionsInfarction, Brain, Embolism, Atrial FibrillationArmsThe presence and rate of MES measured by TCD monitoring
NCT07172165 enrolling by invitationnot on this mapstarted 2025, after this paper: background citation

A Multicenter Study to Optimize Microembolic Signal Classification Based on Double--Blind Multiparametric Assessment by Human Experts Using an Universal Graphical Interface [MESOMEGA]

TypeobservationalSponsorUniversidade do PortoRan2025 to 2026Enrolled850ConditionsMicroemboli, Stroke, Transcranial Doppler UltrasoundArmsExpert double-blind evaluation
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
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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

9 authors at 5 institutions in 5 countries.

Pedro CastroDepartment of Neurology, Centro Hospitalar Universitário de São João, Faculty of Medicine of University of Porto, Porto, Portugal.ORCID 0000-0003-1401-2398
J FerreiraUnIC@RISE, Department of Clinical Neurosciences and Mental Health, Faculty of Medicine of University of Porto, Porto, Portugal.ORCID 0000-0002-9286-8987
Branko MalojcicDepartment of Neurology, Hospital Centre Zagreb, Zagreb, Croatia.
Danira BazadonaDepartment of Neurology, Hospital Centre Zagreb, Zagreb, Croatia.
Claudio BaracchiniStroke Unit and Neurosonology Laboratory, University of Padua School of Medicine, Padova. Italy.
Alessio PieroniStroke Unit and Neurosonology Laboratory, University of Padua School of Medicine, Padova. Italy.
David SkoloudikCenter for Health Research, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic.
Elsa AzevedoDepartment of Neurology, Centro Hospitalar de São João, Faculty of Medicine of University of Porto, Portugal.
Manfred KapsJustus-Liebig-University Giessen, Giessen, Germany.
Universidade do Porto · PTUniversity Hospital Centre Zagreb · HRUniversity of Padua · ITJustus-Liebig-Universität Gießen · DEUniversity of Ostrava · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe investigated the burden of microembolic signals (MES) in patients with acute ischaemic stroke (AIS) and atrial fibrillation (AF), assessing their impact on functional outcomes. PATIENTS AND

methodsThis multicentre international prospective cohort study involved patients with AIS and either a known or newly diagnosed anticoagulant-naïve AF. All centres utilised the same transcranial Doppler machine for 1-h monitoring with bilateral 2 MHz probes within 24 h of symptom onset. Recordings underwent MES analysis by a blinded central reader. The primary objectives were to ascertain the MES proportion and its association with functional outcomes assessed by the modified Rankin scale (mRS) score at 90 days.

resultsBetween September 2019 and May 2021, we enrolled 61 patients, with a median age of 78 years (interquartile range 73-83) and a median stroke severity score of 11 (interquartile range 4-18). MES were observed in 14 patients (23%), predominantly unilateral (12/14, 86%), with a median rate of 6 counts/hour (interquartile range 4-18). MES occurrence was higher post-thrombectomy and among those with elevated brain natriuretic peptide levels (

conclusionsNearly a quarter of patients with AIS and AF exhibited silent microembolization after the index event. Detecting MES within 24 h post-stroke (using transcranial Doppler) could signify a marker of poor functional outcomes. Subsequent trials will assess if very early antithrombotic treatment might enhance outcomes in this highly selective group of cardioembolic stroke patients. (Clinicaltrials.gov ID: NCT06018090).

Indexed as

Atrial FibrillationIschemic StrokeUltrasonography, Doppler, TranscranialAgedAged, 80 and overFemaleHumansIntracranial EmbolismMaleProspective StudiesThrombectomyatrial fibrillationembolismInfarctionischaemic strokeSubject terms: ultrasoundtranscranial Dopplerultrasound

Identifiers

PMID38149620
PMCPMC11318424
OpenAlexW4390274109

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.