Evidence map›Paper›PMID 23463579›Full record

SynthesisAnnals of neurology2013

Carotid plaque hemorrhage on magnetic resonance imaging strongly predicts recurrent ischemia and stroke.

Akram A Hosseini, Neghal Kandiyil, Shane T S Macsweeney, Nishath Altaf, Dorothee P Auer

Registry-linked trialOpen access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Annals of neurology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03507374 (PCSK9 Inhibition in Patients With Symptomatic Intracranial Atherosclerosis), which is not on this map. Cited by 72 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 3 pooled it
13.3field-weighted citation impact, top 1% 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.

NCT03507374 early_phase1terminatedstarted 2018, after this paper: background citation

PCSK9 Inhibition in Patients With Symptomatic Intracranial Atherosclerosis

Ran2018Enrolled20Registered outcomes5Posted comparisons0ConditionsIntracranial Atherosclerosis, Intraplaque Hemorrhage, StrokeArmsAlirocumab, Placebo
Open the trial in the graph
3 · Its place in the literature

Who cites it

72 citing papers in PubMed, 3 syntheses or guidelines pooled it, 183 citations in OpenAlex.

  1. Pooled it
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  9. The role of non-stenosing carotid artery plaques in embolic stroke of undetermined source, is it a silent offender? A review of literature.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
    Review
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  18. Observational
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12 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

5 authors at 2 institutions in 1 country.

Akram A HosseiniDivision of Radiological and Imaging Sciences, University of Nottingham, Queen's Medical Campus, Nottingham, United Kingdom.
Neghal Kandiyil
Shane T S Macsweeney
Nishath Altaf
Dorothee P Auer
University of Nottingham · GBQueen's Medical Centre · GB

Funding

Department of Health PB-PG-0107-11438
6 · The paper itself

Abstract

objectiveThere is a recognized need to improve selection of patients with carotid artery stenosis for carotid endarterectomy (CEA). We assessed the value of magnetic resonance imaging (MRI)-defined carotid plaque hemorrhage (MRIPH) to predict recurrent ipsilateral cerebral ischemic events, and stroke in symptomatic carotid stenosis.

methodsOne hundred seventy-nine symptomatic patients with ≥ 50% stenosis were prospectively recruited, underwent carotid MRI, and were clinically followed up until CEA, death, or ischemic event. MRIPH was diagnosed if the plaque signal intensity was >150% that of the adjacent muscle. Event-free survival analysis was done using Kaplan-Meier plots and Cox regression models controlling for known vascular risk factors. We also undertook a meta-analysis of reported data on MRIPH and recurrent events.

resultsOne hundred fourteen patients (63.7%) showed MRIPH, suffering 92% (57 of 62) of all recurrent ipsilateral events and all but 1 (25 of 26) future strokes. Patients without MRIPH had an estimated annual absolute stroke risk of only 0.6%. Cox multivariate regression analysis proved MRIPH as a strong predictor of recurrent ischemic events (hazard ratio [HR] = 12.0, 95% confidence interval [CI] = 4.8-30.1, p < 0.001) and stroke alone (HR = 35.0, 95% CI = 4.7-261.6, p = 0.001). Meta-analysis of published data confirmed this association between MRIPH and recurrent cerebral ischemic events in symptomatic carotid artery stenosis (odds ratio = 12.2, 95% CI = 5.5-27.1, p < 0.00001).

interpretationMRIPH independently and strongly predicts recurrent ipsilateral ischemic events, and stroke alone, in symptomatic ≥ 50% carotid artery stenosis. The very low stroke risk in patients without MRIPH puts into question current risk-benefit assessment for CEA in this subgroup.

Indexed as

AgedBrain IschemiaCarotid StenosisCerebral HemorrhageFemaleFollow-Up StudiesHumansMagnetic Resonance ImagingMaleMiddle AgedPredictive Value of TestsProspective StudiesRecurrenceStroke

Identifiers

PMID23463579
PMCPMC3824333
OpenAlexW1961763960

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.