Evidence map›Paper›PMID 26329461›Full record

ArticleJournal of biomechanics2015

Hemodynamic and thrombogenic analysis of a trileaflet polymeric valve using a fluid-structure interaction approach.

Filippo Piatti, Francesco Sturla, Gil Marom, Jawaad Sheriff, Thomas E Claiborne, Marvin J Slepian, Alberto Redaelli, Danny Bluestein

Open access · greenAbstract read
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 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

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  13. Review
  14. New Insights into Valve Hemodynamics.Rambam Maimonides medical journal · 2020
    Review
  15. In Vitro Durability and Stability Testing of a Novel Polymeric Transcatheter Aortic Valve.ASAIO journal (American Society for Artificial Internal Organs : 1992) · 2020
    Article
  16. Review
  17. Principles of TAVR valve design, modelling, and testing.Expert review of medical devices · 2018
    Review
  18. Article
  19. Article
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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 at 3 institutions in 2 countries.

Filippo PiattiDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Francesco SturlaDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Gil MaromDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA.
Jawaad SheriffDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA.
Thomas E ClaiborneDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA.
Marvin J SlepianDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA; Sarver Heart Center, University of Arizona, Tucson, AZ, USA.
Alberto RedaelliDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Danny BluesteinDepartment of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA. Electronic address: danny.bluestein@stonybrook.edu.
Stony Brook University · USPolitecnico di Milano · ITUniversity of Arizona · US

Funding

Optimizing Cardiovascular Device Thromboresistance for Eliminating AnticoagulantsU01EB012487 · NIBIB · STATE UNIVERSITY NEW YORK STONY BROOK · PI BLUESTEIN, DANNY · 2010 to 2014
$6.9M
Optimizing Cardiovascular Devices Thrombogenicity for Eliminating AnticoagulationR01EB008004 · NIBIB · STATE UNIVERSITY NEW YORK STONY BROOK · PI BLUESTEIN, DANNY · 2007 to 2009
$1.7M
NIBIB NIH HHS R01 EB008004NIBIB NIH HHS U01 EB012487NIBIB NIH HHS U01EB012487-0
6 · The paper itself

Abstract

Surgical valve replacement in patients with severe calcific aortic valve disease using either bioprosthetic or mechanical heart valves is still limited by structural valve deterioration for the former and thrombosis risk mandating anticoagulant therapy for the latter. Prosthetic polymeric heart valves have the potential to overcome the inherent material and design limitations of these valves, but their development is still ongoing. The aim of this study was to characterize the hemodynamics and thrombogenic potential of the Polynova polymeric trileaflet valve prototype using a fluid-structure interaction (FSI) approach. The FSI model replicated experimental conditions of the valve as tested in a left heart simulator. Hemodynamic parameters (transvalvular pressure gradient, flow rate, maximum velocity, and effective orifice area) were compared to assess the validity of the FSI model. The thrombogenic footprint of the polymeric valve was evaluated using a Lagrangian approach to calculate the stress accumulation (SA) values along multiple platelet trajectories and their statistical distribution. In the commissural regions, platelets were exposed to the highest SA values because of highest stress levels combined with local reverse flow patterns and vortices. Stress-loading waveforms from representative trajectories in regions of interest were emulated in our hemodynamic shearing device (HSD). Platelet activity was measured using our platelet activation state (PAS) assay and the results confirmed the higher thrombogenic potential of the commissural hotspots. In conclusion, the proposed method provides an in depth analysis of the hemodynamic and thrombogenic performance of the polymer valve prototype and identifies locations for further design optimization.

Indexed as

Aortic ValveHeart Valve ProsthesisHemodynamicsModels, TheoreticalPlatelet ActivationAortic Valve StenosisBlood PlateletsCalcinosisHumansPolymersProsthesis DesignThrombosisPolymersFluid–structure interactionHemodynamic predictionParticle tracking analysisPlatelet activationTrileaflet polymeric valve

Identifiers

PMID26329461
PMCPMC4600671
OpenAlexW1748854780

What OpenQuestion holds

Textmetadata
LicenceTDM
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.