Evidence map›Paper›PMID 25477221›Full record

ArticleStroke2015

Symptomatic carotid atherosclerotic disease: correlations between plaque composition and ipsilateral stroke risk.

Dominic Pj Howard, Guus W van Lammeren, Peter M Rothwell, Jessica N Redgrave, Frans L Moll, Jean-Paul Pm de Vries, Dominique Pv de Kleijn, Hester M den Ruijter, Gert Jan de Borst, Gerard Pasterkamp

Abstract read
In one paragraph

Article in Stroke, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 3 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

66 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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6 more citing papers are in PubMed but not listed here.

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

10 authors.

Dominic Pj Howard *Stroke Prevention Research Unit, Nuffield Dept. of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK.
Guus W van Lammeren *Experimental Cardiology Laboratory, University Medical Center Utrecht, The Netherlands.
Peter M RothwellStroke Prevention Research Unit, Nuffield Dept. of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK.
Jessica N RedgraveStroke Prevention Research Unit, Nuffield Dept. of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK.
Frans L MollDepartment of Vascular Surgery, University Medical Center Utrecht, The Netherlands.
Jean-Paul Pm de VriesDepartment of Vascular Surgery, St Antonius Hospital, Nieuwegein, The Netherlands.
Dominique Pv de KleijnExperimental Cardiology Laboratory, University Medical Center Utrecht, The Netherlands.
Hester M den RuijterExperimental Cardiology Laboratory, University Medical Center Utrecht, The Netherlands.
Gert Jan de BorstDepartment of Vascular Surgery, University Medical Center Utrecht, The Netherlands.
Gerard PasterkampExperimental Cardiology Laboratory, University Medical Center Utrecht, The Netherlands.

Funding

The Dunhill Medical Trust OSRP2/1006Wellcome Trust 095626
6 · The paper itself

Abstract

background and purposeFor symptomatic patients with carotid artery stenosis, the risk benefit for surgical intervention may vary among patient groups. Various modalities of plaque imaging have been promoted as potential tools for additional risk stratification, particularly in patients with moderate stenosis. However, it remains uncertain to what extent carotid plaque components predict risk of future ipsilateral ischemic stroke.

methodsIn 2 large atherosclerotic carotid plaque biobank studies, we related histological characteristics of 1640 carotid plaques with a validated risk model for the prediction of individual 1- and 5-year stroke risk.

resultsNo significant heterogeneity between the studies was found. Predicted 5-year stroke risk (top versus bottom quartile) was related to plaque thrombus (odds ratio, 1.42; 95% confidence interval, 1.11-1.89; P=0.02), fibrous content (0.65; 0.49-0.87; P=0.004), macrophage infiltration (1.41; 1.05-1.90; P=0.02), high microvessel density (1.49; 1.05-2.11; P=0.03), and overall plaque instability (1.40; 1.05-1.87; P=0.02). This association was not observed for cap thickness, calcification, intraplaque hemorrhage, or lymphocyte infiltration. Plaques removed within 30 days of most recent symptomatic event were most strongly correlated with predicted stroke risk.

conclusionsFeatures of the vulnerable carotid plaque, including plaque thrombus, low fibrous content, macrophage infiltration, and microvessel density, correlate with predicted stroke risk. This study provides a basis for plaque imaging studies focused on stroke risk stratification.

Indexed as

AgedBrain IschemiaCarotid Artery DiseasesCarotid StenosisFemaleHemorrhageHumansLymphocytesMacrophagesMaleMicrovesselsMiddle AgedNeovascularization, PathologicPlaque, AtheroscleroticRisk FactorsStrokeacute strokecarotid plaque

Identifiers

PMID25477221
PMCPMC4285579

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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.