Evidence map›Paper›PMID 26294354›Full record

ArticleJournal of biomechanics2015

Comparison of transcatheter aortic valve and surgical bioprosthetic valve durability: A fatigue simulation study.

Caitlin Martin, Wei Sun

Abstract readComparative Study
In one paragraph

Article in Journal of biomechanics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
–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

47 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Aortic Valve Replacement in the Current Era.Journal of clinical medicine · 2025
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Biomechanics of Transcatheter Aortic Valve Implant.Bioengineering (Basel, Switzerland) · 2022
    Review
  17. Article
  18. Article
  19. 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

2 authors.

Caitlin MartinTissue Mechanics Laboratory, The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States.
Wei SunTissue Mechanics Laboratory, The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States. Electronic address: wei.sun@bme.gatech.edu.

Funding

Probabilistic Modeling of Stenotic Aortic Valve InterventionR01HL104080 · NHLBI · UNIVERSITY OF CONNECTICUT STORRS · PI SUN, WEI · 2011 to 2015
$1.9M
Structural Analysis and Comparative Study of Surgical and Transcatheter Valve DevR21HL108240 · NHLBI · UNIVERSITY OF CONNECTICUT STORRS · PI SUN, WEI · 2013 to 2014
$403k
Patient-Specific Modeling for Analysis of Aortic AneurysmsF31HL112632 · NHLBI · UNIVERSITY OF CONNECTICUT STORRS · PI MARTIN, CAITLIN MARIE · 2012 to 2015
$154k
NHLBI NIH HHS F31 HL112632NHLBI NIH HHS F31HL112632NHLBI NIH HHS HL104080NHLBI NIH HHS HL1082400NHLBI NIH HHS R01 HL104080NHLBI NIH HHS R21 HL108240
6 · The paper itself

Abstract

Transcatheter aortic valve (TAV) intervention is now the standard-of-care treatment for inoperable patients and a viable alternative treatment option for high-risk patients with symptomatic aortic stenosis. While the procedure is associated with lower operative risk and shorter recovery times than traditional surgical aortic valve (SAV) replacement, TAV intervention is still not considered for lower-risk patients due in part to concerns about device durability. It is well known that bioprosthetic SAVs have limited durability, and TAVs are generally assumed to have even worse durability, yet there is little long-term data to confirm this suspicion. In this study, TAV and SAV leaflet fatigue due to cyclic loading was investigated through finite element analysis by implementing a computational soft tissue fatigue damage model to describe the behavior of the pericardial leaflets. Under identical loading conditions and with identical leaflet tissue properties, the TAV leaflets sustained higher stresses, strains, and fatigue damage compared to the SAV leaflets. The simulation results suggest that the durability of TAVs may be significantly reduced compared to SAVs to about 7.8 years. The developed computational framework may be useful in optimizing TAV design parameters to improve leaflet durability, and assessing the effects of underexpanded, elliptical, or non-uniformly expanded stent deployment on TAV durability.

Indexed as

BioprosthesisCathetersFinite Element AnalysisHeart Valve ProsthesisMechanical PhenomenaAortic ValveHumansPericardiumProsthesis FailureStentsTime FactorsWeight-BearingBioprosthetic heart valvesFinite element analysisSoft tissue fatigue damageTranscatheter aortic valve

Identifiers

PMID26294354
PMCPMC4592817

What OpenQuestion holds

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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.