Evidence map›Paper›PMID 28547671›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2018

Is coronary calcium scoring too late? Total body arterial calcium burden in patients without known CAD and normal MPI.

Adel H A Allam, Randall C Thompson, Michael A Eskander, Mohamed A Mandour Ali, Ayman Sadek, Chris J Rowan, M Linda Sutherland, James D Sutherland, Bruno Frohlich, David E Michalik and 5 more

Abstract read
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In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.7field-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.

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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. European journal of nuclear medicine and molecular imaging · 2020
    Trial
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  4. Review
  5. Article
  6. Article
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  13. Observational
  14. Use of coronary artery calcium scanning as a triage for invasive coronary angiography.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2019
    Article
  15. Review
  16. Clinical significance of extra-coronary arterial calcifications.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2018
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 12 institutions in 2 countries.

Adel H A AllamAl Azhar University, Cairo, Egypt.
Randall C ThompsonSaint Luke's Mid America Heart Institute, Kansas City, MO, USA.
Michael A EskanderUniversity of California, Irvine Health, Orange, CA, USA. eskandem@uci.edu.
Mohamed A Mandour AliAl Azhar University, Cairo, Egypt.
Ayman SadekAl Azhar University, Cairo, Egypt.
Chris J RowanRenown Institute for Heart and Vascular Health, Reno, NV, USA.
M Linda SutherlandNewport Diagnostic Center, Newport, CA, USA.
James D SutherlandSouth Coast Radiological Medical Group, Laguna Hills, CA, USA.
Bruno FrohlichNational Museum of Natural History Smithsonian Institution, Washington, DC, DC, USA.
David E MichalikUniversity of California, Irvine School of Medicine, Irvine, CA, USA.
HORUS research team
Caleb E FinchLeonard Davis School of Gerontology and Dornsife College, University of Southern California, Los Angeles, CA, USA.
Jagat NarulaIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Gregory S ThomasLong Beach Memorial, Long Beach, CA, USA.
L Samuel WannAscension Healthcare, Milwaukee, WI, USA.
Al-Azhar University · EGUniversity of California, Irvine · USAscension · USCardiovascular Medical Group · USIBM (Egypt) · EGIcahn School of Medicine at Mount Sinai · USNational Museum of Natural History · USNewport Hospital · USRenown Regional Medical Center · USSaint Luke's Hospital · USUC Irvine Health · USUniversity of Southern California · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with normal myocardial perfusion imaging (MPI) have a good prognosis. However, pre-clinical coronary and extracoronary atherosclerosis may exist in the absence of myocardial ischemia.

methods154 Egyptian patients (mean age 53 years) underwent whole-body non-contrast CT following normal MPI.

resultsAtherosclerosis in the form of calcification was observed in ≥1 vascular bed in 115 of 154 (75%) patients. This included the iliofemoral (62%), abdominal aorta (53%), thoracic aorta (47%), coronary (47%), and carotid (25%) vascular beds. Mean total body calcium score was 3172 ± 530 AU. Extracoronary atherosclerosis in patients with a zero coronary artery calcium (CAC) score was common, occurring in the above-listed beds 42%, 36%, 29%, and 7% of the time, respectively. CAC was rarely present without iliofemoral or abdominal aortic calcification.

conclusionQuantitative assessment of calcification in different vascular beds demonstrates that extracoronary atherosclerosis is common in patients who have normal MPI. Atherosclerotic calcifications are most common in the iliofemoral arteries and abdominal aorta, which typically predate coronary calcifications. An imaging strategy to detect extracoronary atherosclerosis could lead to greater understanding of the natural history of atherosclerosis in its long pre-clinical phase and possibly to earlier preventive strategies.

Indexed as

AdultAgedCoronary Artery DiseaseFemaleHumansMaleMiddle AgedMyocardial Perfusion ImagingTomography, X-Ray ComputedVascular CalcificationAbdominal aortaAtherosclerosisCalciumCoronary artery diseaseMyocardial perfusion imagingX-ray computed tomography

Identifiers

PMID28547671
OpenAlexW2617493641

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.