Evidence map›Paper›PMID 30980211›Full record

ArticleBiomechanics and modeling in mechanobiology2019

Tricuspid valve leaflet strains in the beating ovine heart.

M Mathur, T Jazwiec, W D Meador, M Malinowski, M Goehler, H Ferguson, T A Timek, M K Rausch

Abstract read
In one paragraph

Article in Biomechanics and modeling in mechanobiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Article
  3. Chordae Rupture Alters Tricuspid Valve Leaflet Biomechanics.Cardiovascular engineering and technology · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Leaflet remodeling reduces tricuspid valve function in a computational model.Journal of the mechanical behavior of biomedical materials · 2024
    Article
  8. Article
  9. Article
  10. The effects of leaflet material properties on the simulated function of regurgitant mitral valves.Journal of the mechanical behavior of biomedical materials · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. The Effect of Downsizing on the Normal Tricuspid Annulus.Annals of biomedical engineering · 2020
    Article
  20. Article
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.

M MathurDepartment of Mechanical Engineering, University of Texas at Austin, Austin, TX, USA.
T JazwiecDivision of Cardiothoracic Surgery, Spectrum Health, Grand Rapids, MI, USA.
W D MeadorDepartment of Biomedical Engineering, University of Texas at Austin, 2501 Speedway, Room 7.620, Austin, TX, 78712, USA.
M MalinowskiDivision of Cardiothoracic Surgery, Spectrum Health, Grand Rapids, MI, USA.
M GoehlerDivision of Cardiothoracic Surgery, Spectrum Health, Grand Rapids, MI, USA.
H FergusonDivision of Cardiothoracic Surgery, Spectrum Health, Grand Rapids, MI, USA.
T A TimekDivision of Cardiothoracic Surgery, Spectrum Health, Grand Rapids, MI, USA.
M K RauschDepartment of Biomedical Engineering, University of Texas at Austin, 2501 Speedway, Room 7.620, Austin, TX, 78712, USA. manuel.rausch@utexas.edu.

Funding

Tricuspid valve adaptation to right heart disease: A multiscale, histomechanical study in sheepF31HL145976 · NHLBI · UNIVERSITY OF TEXAS AT AUSTIN · PI MEADOR, WILLIAM D · 2019 to 2021
$90k
NHLBI NIH HHS F31 HL145976
6 · The paper itself

Abstract

The tricuspid leaflets coapt during systole to facilitate proper valve function and, thus, ensure efficient transport of deoxygenated blood to the lungs. Between their open state and closed state, the leaflets undergo large deformations. Quantification of these deformations is important for our basic scientific understanding of tricuspid valve function and for diagnostic or prognostic purposes. To date, tricuspid valve leaflet strains have never been directly quantified in vivo. To fill this gap in our knowledge, we implanted four sonomicrometry crystals per tricuspid leaflet and six crystals along the tricuspid annulus in a total of five sheep. In the beating ovine hearts, we recorded crystal coordinates alongside hemodynamic data. Once recorded, we used a finite strain kinematic framework to compute the temporal evolutions of area strain, radial strain, and circumferential strain for each leaflet. We found that leaflet strains were larger in the anterior leaflet than the posterior and septal leaflets. Additionally, we found that radial strains were larger than circumferential strains. Area strains were as large as 97% in the anterior leaflet, 31% in the posterior leaflet, and 31% in the septal leaflet. These data suggest that tricuspid valve leaflet strains are significantly larger than those in the mitral valve. Should our findings be confirmed they could suggest either that the mechanobiological equilibrium of tricuspid valve resident cells is different than that of mitral valve resident cells or that the mechanotransductive apparatus between the two varies. Either phenomenon may have important implications for the development of tricuspid valve-specific surgical techniques and medical devices.

Indexed as

AnimalsBiomechanical PhenomenaHeartHemodynamicsMyocardial ContractionSheepStress, MechanicalSystoleTime FactorsTricuspid ValveDeformationKinematicsMechanicsRight heartSheepSonomicrometry

Identifiers

PMID30980211
PMCPMC8000449

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Registered trials

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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.