Evidence map›Paper›PMID 30418486›Full record

ArticleJournal of biomechanical engineering2019

Comparison of Biomechanical Properties and Microstructure of Trabeculae Carneae, Papillary Muscles, and Myocardium in the Human Heart.

Fatemeh Fatemifar, Marc D Feldman, Meagan Oglesby, Hai-Chao Han

Open access · bronzeAbstract read
In one paragraph

Article in Journal of biomechanical engineering, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 33 citations in OpenAlex.

  1. Repetitive pressure overload: species disparities, mechanisms, and translational relevance.American journal of physiology. Heart and circulatory physiology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Biomechanical-Structural Correlation ofAnimals : an open access journal from MDPI · 2021
    Article
  7. Review
  8. Frontiers in physiology · 2020
    Review
  9. Review
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

4 authors at 2 institutions in 1 country.

Fatemeh FatemifarDepartment of Mechanical Engineering,University of Texas at San Antonio,San Antonio, TX 78249.
Marc D FeldmanDepartment of Medicine,University of Texas Health ScienceCenter at San Antonio,San Antonio, TX 78229.
Meagan OglesbyDepartment of Medicine,University of Texas Health ScienceCenter at San Antonio,San Antonio, TX 78229.
Hai-Chao Han
The University of Texas at San Antonio · USThe University of Texas Health Science Center at San Antonio · US

Funding

Biomechanical Mechanisms of Artery TortuosityR01HL095852 · NHLBI · UNIVERSITY OF TEXAS SAN ANTONIO · PI HAN, HAI-CHAO · 2010 to 2014
$1.8M
NHLBI NIH HHS R01 HL095852
6 · The paper itself

Abstract

Trabeculae carneae account for a significant portion of human ventricular mass, despite being considered embryologic remnants. Recent studies have found trabeculae hypertrophy and fibrosis in hypertrophied left ventricles with various pathological conditions. The objective of this study was to investigate the passive mechanical properties and microstructural characteristics of trabeculae carneae and papillary muscles compared to the myocardium in human hearts. Uniaxial tensile tests were performed on samples of trabeculae carneae and myocardium strips, while biaxial tensile tests were performed on samples of papillary muscles and myocardium sheets. The experimental data were fitted with a Fung-type strain energy function and material coefficients were determined. The secant moduli at given diastolic stress and strain levels were determined and compared among the tissues. Following the mechanical testing, histology examinations were performed to investigate the microstructural characteristics of the tissues. Our results demonstrated that the trabeculae carneae were significantly stiffer (Secant modulus SM2 = 80.06 ± 10.04 KPa) and had higher collagen content (16.10 ± 3.80%) than the myocardium (SM2 = 55.14 ± 20.49 KPa, collagen content = 10.06 ± 4.15%) in the left ventricle. The results of this study improve our understanding of the contribution of trabeculae carneae to left ventricular compliance and will be useful for building accurate computational models of the human heart.

Indexed as

collagenheart failure with preserved ejection fractionimpaired ventricular compliancemechanical propertiesmyocardiummyocytepapillary musclestrabeculae carneae

Identifiers

PMID30418486
PMCPMC6298537
OpenAlexW2900115088

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.