Evidence map›Paper›PMID 30497683›Full record

ArticleJournal of biomechanics2019

An investigation of regional variations in the biaxial mechanical properties and stress relaxation behaviors of porcine atrioventricular heart valve leaflets.

Devin Laurence, Colton Ross, Samuel Jett, Cortland Johns, Allyson Echols, Ryan Baumwart, Rheal Towner, Jun Liao, Pietro Bajona, Yi Wu and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of biomechanics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. The Tricuspid Valve Maladapts in a Pulmonary Hypertension Rat Model.bioRxiv : the preprint server for biology · 2026
    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. MetaNO: How to Transfer Your Knowledge on Learning Hidden Physics.Computer methods in applied mechanics and engineering · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Parameterization, geometric modeling, and isogeometric analysis of tricuspid valves.Computer methods in applied mechanics and engineering · 2021
    Article
  18. Article
  19. Review
  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

11 authors at 5 institutions in 1 country.

Devin LaurenceBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Colton RossBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Samuel JettBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Cortland JohnsBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Allyson EcholsBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Ryan BaumwartCenter for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
Rheal TownerAdvanced Magnetic Resonance Center, MS 60, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA.
Jun LiaoDepartment of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, USA.
Pietro BajonaDepartment of Cardiovascular and Thoracic Surgery, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Yi WuBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA.
Chung-Hao LeeBiomechanics and Biomaterials Design Laboratory (BBDL), School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019, USA; Institute for Biomedical Engineering, Science and Technology, The University of Oklahoma, Norman, OK 73019, USA. Electronic address: ch.lee@ou.edu.
University of Oklahoma · USOklahoma Medical Research Foundation · USOklahoma State University · USThe University of Texas at Arlington · USThe University of Texas Southwestern Medical Center · US

Funding

American Heart Association-American Stroke Association 16SDG27760143
6 · The paper itself

Abstract

The facilitation of proper blood flow through the heart depends on proper function of heart valve components, and alterations to any component can lead to heart disease or failure. Comprehension of these valvular diseases is reliant on thorough characterization of healthy heart valve structures for use in computational models. Previously, computational models have treated these leaflet structures as a structurally and mechanically homogenous material, which may not be an accurate description of leaflet mechanical response. In this study, we aimed to characterize the mechanics of the heart valve leaflet as a structurally heterogenous material. Specifically, porcine mitral valve and tricuspid valve anterior leaflets were sectioned into six regions and biaxial mechanical tests with various loading ratios and stress-relaxation test were performed on each regional tissue sample. Three main findings from this study were summarized as follows: (i) the central regions of the leaflet had a more anisotropic nature than edge regions, (ii) the mitral valve anterior leaflet was more extensible in regions closer to the annulus, and (iii) there was variance in the stress-relaxation behavior among all six regions, with mitral valve leaflet tissue regions exhibiting a greater decay than the tricuspid valve regions. This study presents a novel investigation of the regional variations in the heart valve biomechanics that has not been comprehensively examined. Our results thus allow for a refinement of computational models for more accurately predicting diseased or surgically-intervened condition, where tissue heterogeneity plays an essential role in the heart valve function.

Indexed as

Heart AtriaHeart ValvesHeart VentriclesStress, MechanicalAnimalsAnisotropyBiomechanical PhenomenaModels, CardiovascularSwineBiaxial mechanical testingHeart valve biomechanicsRegional mechanical propertiesThe mitral valveThe tricuspid valve

Identifiers

PMID30497683
PMCPMC8008702
OpenAlexW2900715810

What OpenQuestion holds

Textmetadata
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.