Evidence map›Paper›PMID 31109184›Full record

Observational studyCirculation. Cardiovascular imaging2019

Left Ventricular Flow Analysis.

Victoria M Stoll, Aaron T Hess, Christopher T Rodgers, Malenka M Bissell, Petter Dyverfeldt, Tino Ebbers, Saul G Myerson, Carl-Johan Carlhäll, Stefan Neubauer

Registry-linked trialAbstract readObservational StudyVideo-Audio Media
In one paragraph

Observational study in Circulation. Cardiovascular imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04395846 (Heart Failure and Preserved Ejection Fraction), which is not on this map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing 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.

NCT04395846 active not recruitingnot on this mapstarted 2020, after this paper: background citation

Heart Failure and Preserved Ejection Fraction: Observation of Its Progression and Prognosis (HOPP-BERN)

TypeobservationalSponsorInsel Gruppe AG, University Hospital BernRan2020 to 2029Enrolled350ConditionsHeart Failure With Preserved Ejection Fraction
3 · Its place in the literature

Who cites it

41 citing papers in PubMed.

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  20. Age- and sex-specific reference values of biventricular flow components and kinetic energy by 4D flow cardiovascular magnetic resonance in healthy subjects.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2023
    Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Victoria M StollDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, United Kingdom (V.M.S., A.T.H., C.T.R., M.M.B., S.G.M., S.N.).
Aaron T HessDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, United Kingdom (V.M.S., A.T.H., C.T.R., M.M.B., S.G.M., S.N.).
Christopher T RodgersDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, United Kingdom (V.M.S., A.T.H., C.T.R., M.M.B., S.G.M., S.N.).
Malenka M BissellDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, United Kingdom (V.M.S., A.T.H., C.T.R., M.M.B., S.G.M., S.N.).
Petter DyverfeldtDivision of Cardiovascular Medicine, Department of Medical and Health Sciences (P.D., T.E., C.-J.C.), Linköping University, Sweden.
Tino EbbersDivision of Cardiovascular Medicine, Department of Medical and Health Sciences (P.D., T.E., C.-J.C.), Linköping University, Sweden.
Saul G MyersonDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, United Kingdom (V.M.S., A.T.H., C.T.R., M.M.B., S.G.M., S.N.).
Carl-Johan CarlhällDivision of Cardiovascular Medicine, Department of Medical and Health Sciences (P.D., T.E., C.-J.C.), Linköping University, Sweden.
Stefan NeubauerDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, United Kingdom (V.M.S., A.T.H., C.T.R., M.M.B., S.G.M., S.N.).

Funding

British Heart Foundation FS/12/14/29354Department of HealthMedical Research Council G0400444Medical Research Council G0900883Wellcome Trust 098436
6 · The paper itself

Abstract

backgroundCardiac remodeling, after a myocardial insult, often causes progression to heart failure. The relationship between alterations in left ventricular blood flow, including kinetic energy (KE), and remodeling is uncertain. We hypothesized that increasing derangements in left ventricular blood flow would relate to (1) conventional cardiac remodeling markers, (2) increased levels of biochemical remodeling markers, (3) altered cardiac energetics, and (4) worsening patient symptoms and functional capacity. Methods Thirty-four dilated cardiomyopathy patients, 30 ischemic cardiomyopathy patients, and 36 controls underwent magnetic resonance including 4-dimensional flow, BNP (brain-type natriuretic peptide) measurement, functional capacity assessment (6-minute walk test), and symptom quantification. A subgroup of dilated cardiomyopathy and control subjects underwent cardiac energetic assessment. Left ventricular flow was separated into 4 components: direct flow, retained inflow, delayed ejection flow, and residual volume. Average KE throughout the cardiac cycle was calculated.

resultsPatients had reduced direct flow proportion and direct-flow average KE compared with controls ( P<0.0001). The residual volume proportion and residual volume average KE were increased in patients ( P<0.0001). Importantly, in a multiple linear regression model to predict the patient's 6-minute walk test, the independent predictors were age (β=-0.3015; P=0.019) and direct-flow average KE (β=0.280, P=0.035; R

conclusionsThis study demonstrates an independent predictive relationship between the direct-flow average KE and a prognostic measure of functional capacity. Intracardiac 4-dimensional flow parameters are novel biomarkers in heart failure and may provide additive value in monitoring new therapies and predicting prognosis.

Indexed as

Coronary CirculationExercise ToleranceMagnetic Resonance Imaging, CineVentricular Function, LeftVentricular RemodelingAdultAgedBiomarkersCardiomyopathiesCardiomyopathy, DilatedCase-Control StudiesCross-Sectional StudiesFemaleHumansMaleMiddle AgedBiomarkersNatriuretic Peptide, Brainbiomarkersheart failuremagnetic resonance imagingprognosiswalk test

Identifiers

PMID31109184
PMCPMC6544522

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Registered trials

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.