Evidence map›Paper›PMID 28256604›Full record

ArticleScientific reports2017

Hydraulic forces contribute to left ventricular diastolic filling.

Elira Maksuti, Marcus Carlsson, Håkan Arheden, Sándor J Kovács, Michael Broomé, Martin Ugander

Abstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

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  14. Hydraulic forces assist left ventricular filling in aortic stenosis at baseline and after valve replacement.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance
    Observational
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

6 authors.

Elira MaksutiDepartment of Clinical Physiology, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden.
Marcus CarlssonLund University, Skane University Hospital, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden.
Håkan ArhedenLund University, Skane University Hospital, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden.
Sándor J KovácsDepartment of Internal Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri, USA.
Michael BrooméDepartment of Medical Engineering, School of Technology and Health, KTH Royal Institute of Technology, Stockholm, Sweden.
Martin UganderDepartment of Clinical Physiology, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Myocardial active relaxation and restoring forces are known determinants of left ventricular (LV) diastolic function. We hypothesize the existence of an additional mechanism involved in LV filling, namely, a hydraulic force contributing to the longitudinal motion of the atrioventricular (AV) plane. A prerequisite for the presence of a net hydraulic force during diastole is that the atrial short-axis area (ASA) is smaller than the ventricular short-axis area (VSA). We aimed (a) to illustrate this mechanism in an analogous physical model, (b) to measure the ASA and VSA throughout the cardiac cycle in healthy volunteers using cardiovascular magnetic resonance imaging, and (c) to calculate the magnitude of the hydraulic force. The physical model illustrated that the anatomical difference between ASA and VSA provides the basis for generating a hydraulic force during diastole. In volunteers, VSA was greater than ASA during 75-100% of diastole. The hydraulic force was estimated to be 10-60% of the peak driving force of LV filling (1-3 N vs 5-10 N). Hydraulic forces are a consequence of left heart anatomy and aid LV diastolic filling. These findings suggest that the relationship between ASA and VSA, and the associated hydraulic force, should be considered when characterizing diastolic function and dysfunction.

Indexed as

Biomechanical PhenomenaVentricular Function, LeftDiastoleHeartHumansMagnetic Resonance ImagingModels, CardiovascularModels, Theoretical

Identifiers

PMID28256604
PMCPMC5334655

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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.