Evidence map›Paper›PMID 31535124›Full record

ArticleEuropean journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery2020

Abnormal aortic flow conduction is associated with increased viscous energy loss in patients with repaired tetralogy of Fallot.

Michal Schäfer, Alex J Barker, James Jaggers, Gareth J Morgan, Matthew L Stone, Uyen Truong, Lorna P Browne, Ladonna Malone, D Dunbar Ivy, Max B Mitchell

Abstract read
In one paragraph

Article in European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

  1. Aortic Disturbed Flow Is Associated with Aortic Angle in Patients with Tetralogy of Fallot or Double-Outlet Right Ventricle.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2025
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  6. Assessment of abnormal transvalvular flow and wall shear stress direction for pediatric/young adults with bicuspid aortic valve: A cross-sectional four-dimensional flow study.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
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  11. Hemodynamic Parameters for Cardiovascular System in 4D Flow MRI: Mathematical Definition and Clinical Applications.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2022
    Article
  12. Clinical Applications of 4D Flow MR Imaging in Aortic Valvular and Congenital Heart Disease.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2022
    Review
  13. Non-physiological Aortic Flow and Aortopathy in Adult Patients with Transposition of the Great Arteries after the Jatene Procedure: A Pilot Study Using Echo Planar 4D Flow MRI.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2021
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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

10 authors.

Michal SchäferDivision of Cardiology, Department of Pediatrics, Heart Institute, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Alex J BarkerDepartment of Radiology, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
James JaggersDepartment of Bioengineering, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Gareth J MorganDivision of Cardiology, Department of Pediatrics, Heart Institute, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Matthew L StoneDepartment of Bioengineering, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Uyen TruongDivision of Cardiology, Department of Pediatrics, Heart Institute, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Lorna P BrowneDepartment of Radiology, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Ladonna MaloneDepartment of Radiology, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
D Dunbar IvyDivision of Cardiology, Department of Pediatrics, Heart Institute, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Max B MitchellDepartment of Surgery, Section of Congenital Heart Surgery, Heart Institute, Children's Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.

Funding

Role of Valve-Mediated Hemodynamics on Bicuspid AortopathyR01HL133504 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI BARKER, ALEXANDER J., FEDAK, PAUL WILLIAM MICHAEL · 2017 to 2021
$2.8M
Hemodynamic Loading of the Left Ventricle and Aorta in Aortic Valve DiseaseK25HL119608 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI BARKER, ALEXANDER J. · 2014 to 2018
$819k
NHLBI NIH HHS K25 HL119608NHLBI NIH HHS R01 HL133504
6 · The paper itself

Abstract

objectivesAortopathy in tetralogy of Fallot (TOF) is characterized by increased aortic stiffness, dilation and reduced left ventricular (LV) function. Repair in infancy normalizes aortic dimensions in early childhood. Our prior work demonstrated that early TOF repair does not normalize aortic compliance and that abnormal ascending aortic flow patterns are prevalent. The objectives of this study were to: (i) determine whether proximal aortic flow-mediated viscous energy loss (EL') is elevated in patients with early TOF repair compared with healthy controls, and (ii) determine whether the degree of EL' is associated with LV function.

methodsForty-one patients post TOF repair with normalized aortic size and 15 healthy controls underwent 4-dimenisonal-flow magnetic resonance imaging flow analysis and EL' assessment. Correlations between EL', aortic size, and LV function were assessed.

resultsThe TOF group had increased peak systolic thoracic aorta EL' (3.8 vs 1.5 mW, P = 0.004) and increased averaged EL' throughout the cardiac cycle (1.2 vs 0.5 mW, P = 0.003). Peak and mean systolic EL' in the ascending aorta was increased 2-fold in the TOF group compared with control (peak: 2.0 vs 0.9 mW, P = 0.007). Peak EL' measured along the entire thoracic aortic length correlated with LV ejection fraction (R = -0.45, P = 0.009), indexed LV end-systolic volume (R = -0.40, P = 0.010), and right ventricular end-systolic volume (R = -0.37, P = 0.034).

conclusionsPatients with repaired TOF exhibit abnormal aortic flow associated with increased EL' in the thoracic aorta. The magnitude of EL' is associated with LV function and volumes. Increased aortic EL' in TOF is likely due to inherently abnormal LV outflow geometry and or right ventricular interaction. Reduced aortic flow efficiency in TOF increases cardiac work and may be an important factor in long-term cardiac performance.

Indexed as

Tetralogy of FallotAortaChild, PreschoolHumansStroke VolumeSystoleVentricular Function, Left4D-flow MRIAortaTetralogy of Fallot

Identifiers

PMID31535124
PMCPMC8204657

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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.