Evidence map›Paper›PMID 31144256›Full record

Observational studyThe international journal of cardiovascular imaging2019

Interval changes in aortic peak velocity and wall shear stress in patients with bicuspid aortic valve disease.

Ozair Rahman, Michael Scott, Emilie Bollache, Kenichiro Suwa, Jeremy Collins, James Carr, Paul Fedak, Patrick McCarthy, Chris Malaisrie, Alex J Barker and 1 more

Abstract readComparative StudyObservational Study
In one paragraph

Observational study in The international journal of cardiovascular imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 10% 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, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  9. Flow displacement and decreased wall shear stress might be associated with the growth rate of an ascending aortic dilatation.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2022
    Article
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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

11 authors at 3 institutions in 2 countries.

Ozair RahmanDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Michael ScottDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Emilie BollacheDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Kenichiro SuwaDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Jeremy CollinsDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
James CarrDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Paul FedakDepartment of Cardiac Sciences, University of Calgary, Calgary, AB, Canada.
Patrick McCarthyBluhm Cardiovascular Institute and Division of Cardiac Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Chris MalaisrieBluhm Cardiovascular Institute and Division of Cardiac Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Alex J BarkerDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Michael MarklDepartment of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA. mmarkl@northwestern.edu.
Northwestern University · USCardiovascular Institute of the South · USMcCormick (United States) · US

Funding

Functional Cardiovascular 4D MRI in Congenital Heart DiseaseR01HL115828 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MARKL, MICHAEL, RIGSBY, CYNTHIA K · 2012 to 2021
$5.2M
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
NHLBI NIH HHS R01 HL115828NHLBI NIH HHS R01HL115828NHLBI NIH HHS R01 HL133504NHLBI NIH HHS R01HL133504
6 · The paper itself

Abstract

Bicuspid aortic valve (BAV) is associated with abnormal valve-mediated hemodynamics including high velocity jets and elevated wall shear stress (WSS). This study investigated interval changes in flow and WSS in a multi-year follow-up study. This cross-sectional study included n = 44 patients with BAV (age = 44.9 ± 12 years), n = 17 patients with tricuspid aortic valve and thoracic aortic dilatation (TAV with dilation, age = 54.6 ± 16.5 years), and n = 9 healthy controls (age = 49.3 ± 14.7 years) underwent baseline and serial aortic 4D flow MRI (follow-up duration: BAV: 2.6 ± 0.7 years, TAV with dilation: 2.7 ± 0.5 years, controls: 1.1 ± 0.5 years). Data analysis included quantification of aortic dimensions, peak systolic velocities, as well as regional 3D WSS in the ascending aorta. At baseline, BAV patients demonstrated uniformly elevated peak velocity and WSS compared to TAV with dilation and control groups (peak velocity 2.2 m/s vs. 1.6 m/s vs. 1.5 m/s, p < 0.004; WSS: 0.74 Pa vs. 0.45 Pa vs. 0.55 Pa, p < 0.001). For BAV, peak velocity increased from baseline to follow up (2.2 ± 0.8 to 2.3 ± 0.9 m/s, p < 0.001) while WSS decreased (0.74 ± 0.22 to 0.65 ± 0.21 Pa, p < 0.001). Aortic growth was minimal for both BAV (0.05 cm/year) and TAV with dilation (0.03-0.04 cm/year) patients. For BAV patients, increase of ascending aorta peak velocities indicated worsening of valve function at follow-up. Compared to TAV with dilation patients, BAV patients demonstrated a reduction in WSS which may indicate a compensatory mechanism to reduce elevated WSS forces by aortic remodeling.

Indexed as

HemodynamicsMagnetic Resonance AngiographyMagnetic Resonance Imaging, CineAdultAgedAortaAortic ValveBicuspid Aortic Valve DiseaseBlood Flow VelocityCross-Sectional StudiesDilatation, PathologicDisease ProgressionFemaleHeart Valve DiseasesHumansMale4D flow MRIAortic diseaseBicuspid aortic valveFlow imagingFollow-up study

Identifiers

PMID31144256
PMCPMC6995350
OpenAlexW2947647898

What OpenQuestion holds

Textmetadata
LicenceTDM
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.