Evidence map›Paper›PMID 33307457›Full record

ArticleAtherosclerosis2021

Low-density lipoprotein aggregation predicts adverse cardiovascular events in peripheral artery disease.

Sean P Heffron, Maija K Ruuth, Yuhe Xia, Gustavo Hernandez, Lauri Äikäs, Crystalann Rodriguez, Katariina Öörni, Jeffrey S Berger

Open access · greenAbstract read
In one paragraph

Article in Atherosclerosis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 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

8 authors at 2 institutions in 2 countries.

Sean P HeffronNYU Grossman School of Medicine, Leon H. Charney Division of Cardiology, United States; NYU Grossman School of Medicine, NYU Center for the Prevention of Cardiovascular Disease, United States.
Maija K RuuthWihuri Research Institute, Finland; Research Programs Unit, Faculty of Medicine, University of Helsinki, Finland.
Yuhe XiaNYU Grossman School of Medicine, Leon H. Charney Division of Cardiology, United States.
Gustavo HernandezNYU Grossman School of Medicine, Leon H. Charney Division of Cardiology, United States.
Lauri ÄikäsWihuri Research Institute, Finland; Research Programs Unit, Faculty of Medicine, University of Helsinki, Finland.
Crystalann RodriguezNYU Grossman School of Medicine, Leon H. Charney Division of Cardiology, United States.
Katariina ÖörniWihuri Research Institute, Finland; Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki Helsinki, Finland. Electronic address: kati.oorni@wri.fi.
Jeffrey S BergerNYU Grossman School of Medicine, Leon H. Charney Division of Cardiology, United States; NYU Grossman School of Medicine, NYU Center for the Prevention of Cardiovascular Disease, United States; NYU Grossman School of Medicine, Department of Surgery, New York, NY, United States. Electronic address: jeffrey.berger@nyumc.org.
New York University · USUniversity of Helsinki · FI

Funding

Training Program in Cardiovascular SciencesT32HL098129 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI Glenn I Fishman, Ira J Goldberg · 2009 to 2026
$5.9M
Mechanisms of Platelet Activity in Vascular DiseaseR35HL144993 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BERGER, JEFFREY S · 2019 to 2025
$5.5M
Platelet Activity and Vascular Health in Systemic Lupus ErythematosusR01HL139909 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BERGER, JEFFREY S, BUYON, JILL P · 2018 to 2022
$4.3M
Effects of Bariatric Surgery on HDL and Platelet FunctionK23HL135398 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI HEFFRON, SEAN PATRICK · 2017 to 2021
$764k
NHLBI NIH HHS K23 HL135398NHLBI NIH HHS R01 HL139909NHLBI NIH HHS R35 HL144993NHLBI NIH HHS T32 HL098129
6 · The paper itself

Abstract

BACKGROUND AND

aimsPeripheral artery disease (PAD) is a systemic manifestation of atherosclerosis that is associated with a high risk of major adverse cardiovascular events (MACE). LDL aggregation contributes to atherosclerotic plaque progression and may contribute to plaque instability. We aimed to determine if LDL aggregation is associated with MACE in patients with PAD undergoing lower extremity revascularization (LER).

methodsTwo hundred thirty-nine patients with PAD undergoing LER had blood collected at baseline and were followed prospectively for MACE (myocardial infarction, stroke, cardiovascular death) for one year. Nineteen age, sex and LDL-C-matched control subjects without cardiovascular disease also had blood drawn. Subject LDL was exposed to sphingomyelinase and LDL aggregate size measured via dynamic light scattering.

resultsMean age was 72.3 ± 10.9 years, 32.6% were female, and LDL-cholesterol was 68 ± 25 mg/dL. LDL aggregation was inversely associated with triglycerides, but not associated with demographics, LDL-cholesterol or other risk factors. Maximal LDL aggregation occurred significantly earlier in subjects with PAD than in control subjects. 15.9% of subjects experienced MACE over one year. The 1st tertile (shortest time to maximal aggregation) exhibited significantly higher MACE (25% vs. 12.5% in tertile 2 and 10.1% in tertile 3, p = 0.012). After multivariable adjustment for demographics and CVD risk factors, the hazard ratio for MACE in the 1st tertile was 4.57 (95% CI 1.60-13.01; p = 0.004) compared to tertile 3. Inclusion of LDL aggregation in the Framingham Heart Study risk calculator for recurrent coronary heart disease events improved the c-index from 0.57 to 0.63 (p = 0.01).

conclusionsWe show that in the setting of very well controlled LDL-cholesterol, patients with PAD with the most rapid LDL aggregation had a significantly elevated MACE risk following LER even after multivariable adjustment. This measure further improved the classification specificity of an established risk prediction tool. Our findings support broader investigation of this assay for risk stratification in patients with atherosclerotic CVD.

Indexed as

Cardiovascular DiseasesLipoproteins, LDLMyocardial InfarctionPeripheral Arterial DiseaseAgedAged, 80 and overCholesterol, LDLFemaleHumansMaleMiddle AgedRisk FactorsTriglyceridesCholesterol, LDLLipoproteins, LDLTriglyceridesLow-density lipoproteinMajor adverse cardiovascular eventsPeripheral artery diseaseRisk

Identifiers

PMID33307457
PMCPMC8117546
OpenAlexW3107900460

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.