Evidence map›Paper›PMID 21835382›Full record

ArticleJACC. Cardiovascular imaging2011

Association between IVUS findings and adverse outcomes in patients with coronary artery disease: the VIVA (VH-IVUS in Vulnerable Atherosclerosis) Study.

Patrick A Calvert, Daniel R Obaid, Michael O'Sullivan, Leonard M Shapiro, Duncan McNab, Cameron G Densem, Peter M Schofield, Denise Braganza, Sarah C Clarke, Kausik K Ray and 2 more

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Article in JACC. Cardiovascular imaging, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 200 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
200citing 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

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

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  4. Outcomes of Patients With High-Risk Plaques Treated With a Bioresorbable Magnesium Scaffold: Insights From the BIOMAG-I Study.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2026
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140 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Patrick A CalvertDivision of Cardiovascular Medicine, University of Cambridge, Cambridge, United Kingdom.
Daniel R Obaid
Michael O'Sullivan
Leonard M Shapiro
Duncan McNab
Cameron G Densem
Peter M Schofield
Denise Braganza
Sarah C Clarke
Kausik K Ray
Nick E J West
Martin R Bennett

Funding

British Heart Foundation FS/10/025/28196British Heart Foundation PG/08/008Medical Research Council G0800784Medical Research Council G1000847
6 · The paper itself

Abstract

objectivesThe purpose of this study was to determine whether thin-capped fibroatheromata (TCFA) identified by virtual histology intravascular ultrasound (VH-IVUS) are associated with major adverse cardiac events (MACE) on individual plaque or whole patient analysis.

backgroundPost-mortem studies have identified TCFA as the substrate for most myocardial infarctions. However, little is known about the natural history of individual TCFA and their link with MACE. VH-IVUS provides a method of identifying plaques in vivo that are similar (although not identical) to histologically defined TCFA, and has been validated in human atherectomy and post-mortem studies.

methodsOne hundred seventy patients with stable angina or troponin-positive acute coronary syndrome referred for percutaneous coronary intervention (PCI) were prospectively enrolled and underwent 3-vessel VH-IVUS pre-PCI and also post-PCI in the culprit vessel. MACE consisted of death, myocardial infarction, or unplanned revascularization.

resultsIn all, 30,372 mm of VH-IVUS were analyzed. Eighteen MACE occurred in 16 patients over a median follow-up of 625 days (interquartile range: 463 to 990 days); 1,096 plaques were classified, and 19 lesions resulted in MACE (13 nonculprit lesions and 6 culprit lesions). Nonculprit lesion factors associated with nonrestenotic MACE included VHTCFA (hazard ratio [HR]: 7.53, p = 0.038) and plaque burden >70% (HR: 8.13, p = 0.011). VHTCFA (HR: 8.16, p = 0.007), plaque burden >70% (HR: 7.48, p < 0.001), and minimum luminal area <4 mm(2) (HR: 2.91, p = 0.036) were associated with total MACE. On patient-based analysis, the only factor associated with nonrestenotic MACE was 3-vessel noncalcified VHTCFA (HR: 1.79, p = 0.004).

conclusionsVH-IVUS TCFA was associated with nonrestenotic and total MACE on individual plaque analysis, and noncalcified VHTCFA was associated with nonrestenotic and total MACE on whole-patient analysis, demonstrating that VH-IVUS can identify plaques at increased risk of subsequent events. The preservation of the association between VHTCFA and MACE despite various analyses emphasizes its biological importance.

Indexed as

Angioplasty, Balloon, CoronaryUltrasonography, InterventionalAcute Coronary SyndromeAngina PectorisCoronary Artery DiseaseEnglandHumansKaplan-Meier EstimateMyocardial InfarctionPredictive Value of TestsProportional Hazards ModelsProspective StudiesRisk AssessmentRisk FactorsTime FactorsTreatment Outcome

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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.