Evidence map›Paper›PMID 24312359›Full record

ArticlePloS one2013

Obesity is associated with lower coronary microvascular density.

Duncan J Campbell, Jithendra B Somaratne, David L Prior, Michael Yii, James F Kenny, Andrew E Newcomb, Darren J Kelly, Mary Jane Black

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.8field-weighted citation impact, top 13% 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

32 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Review
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  5. Article
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  7. Coronary microvascular dysfunction in heart failure patients.Frontiers in cardiovascular medicine · 2023
    Review
  8. Review
  9. Article
  10. Capillaries as a Therapeutic Target for Heart Failure.Journal of atherosclerosis and thrombosis · 2022
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Inflammation in Metabolic Cardiomyopathy.Frontiers in cardiovascular medicine · 2021
    Review
  16. Review
  17. Review
  18. Review
  19. Cardiac Rehab for Functional Improvement.Current heart failure reports · 2020
    Review
  20. Review
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 3 institutions in 1 country.

Duncan J CampbellSt. Vincent's Institute of Medical Research, Fitzroy, Australia ; Department of Medicine, The University of Melbourne, St. Vincent's Health, Fitzroy, Australia.
Jithendra B Somaratne
David L Prior
Michael Yii
James F Kenny
Andrew E Newcomb
Darren J Kelly
Mary Jane Black
St Vincent's Health · AUMonash University · AUUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObesity is associated with diastolic dysfunction, lower maximal myocardial blood flow, impaired myocardial metabolism and increased risk of heart failure. We examined the association between obesity, left ventricular filling pressure and myocardial structure.

methodsWe performed histological analysis of non-ischemic myocardium from 57 patients (46 men and 11 women) undergoing coronary artery bypass graft surgery who did not have previous cardiac surgery, myocardial infarction, heart failure, atrial fibrillation or loop diuretic therapy.

resultsNon-obese (body mass index, BMI, ≤ 30 kg/m(2), n=33) and obese patients (BMI >30 kg/m(2), n=24) did not differ with respect to myocardial total, interstitial or perivascular fibrosis, arteriolar dimensions, or cardiomyocyte width. Obese patients had lower capillary length density (1145 ± 239, mean ± SD, vs. 1371 ± 333 mm/mm(3), P=0.007) and higher diffusion radius (16.9 ± 1.5 vs. 15.6 ± 2.0 μm, P=0.012), in comparison with non-obese patients. However, the diffusion radius/cardiomyocyte width ratio of obese patients (0.73 ± 0.11 μm/μm) was not significantly different from that of non-obese patients (0.71 ± 0.11 μm/μm), suggesting that differences in cardiomyocyte width explained in part the differences in capillary length density and diffusion radius between non-obese and obese patients. Increased BMI was associated with increased pulmonary capillary wedge pressure (PCWP, P<0.0001), and lower capillary length density was associated with both increased BMI (P=0.043) and increased PCWP (P=0.016).

conclusionsObesity and its accompanying increase in left ventricular filling pressure were associated with lower coronary microvascular density, which may contribute to the lower maximal myocardial blood flow, impaired myocardial metabolism, diastolic dysfunction and higher risk of heart failure in obese individuals.

Indexed as

Coronary CirculationDiastoleFemaleHeart FailureHumansMaleMicrovesselsMiddle AgedObesityPressureRiskVentricular Dysfunction, Left

Identifiers

PMID24312359
PMCPMC3843695
OpenAlexW2126992534

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.