Evidence map›Paper›PMID 26689146›Full record

ArticleThe International journal of artificial organs2015

Fluid dynamic characterization of a polymeric heart valve prototype (Poli-Valve) tested under continuous and pulsatile flow conditions.

Francesco De Gaetano, Marta Serrani, Paola Bagnoli, Jacob Brubert, Joanna Stasiak, Geoff D Moggridge, Maria Laura Costantino

Open access · hybridAbstract read
In one paragraph

Article in The International journal of artificial organs, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Review
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  5. Review
  6. Article
  7. Article
  8. Article
  9. Hemocompatibility of styrenic block copolymers for use in prosthetic heart valves.Journal of materials science. Materials in medicine · 2016
    Article
  10. A Newly Developed Tri-Leaflet Polymeric Heart Valve Prosthesis.Journal of mechanics in medicine and biology · 2015
    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

7 authors at 2 institutions in 2 countries.

Francesco De GaetanoDepartment of Chemistry, Materials and Chemical Engineering Giulio Natta, Politecnico di Milano, Milan - Italy.
Marta SerraniDepartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge - UK.
Paola BagnoliDepartment of Chemistry, Materials and Chemical Engineering Giulio Natta, Politecnico di Milano, Milan - Italy.
Jacob BrubertDepartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge - UK.
Joanna StasiakDepartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge - UK.
Geoff D MoggridgeDepartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge - UK.
Maria Laura CostantinoDepartment of Chemistry, Materials and Chemical Engineering Giulio Natta, Politecnico di Milano, Milan - Italy.
University of Cambridge · GBPolitecnico di Milano · IT

Funding

British Heart Foundation NH/11/4/29059British Heart Foundation SP/15/5/31548
6 · The paper itself

Abstract

purposeOnly mechanical and biological heart valve prostheses are currently commercially available. The former show longer durability but require anticoagulant therapy; the latter display better fluid dynamic behavior but do not have adequate durability. New Polymeric Heart Valves (PHVs) could potentially combine the hemodynamic properties of biological valves with the durability of mechanical valves. This work presents a hydrodynamic evaluation of 2 groups of newly developed supra-annular, trileaflet prosthetic heart valves made from styrenic block copolymers (SBC): Poli-Valves.

methods2 types of Poli-Valves made of SBC and differing in polystyrene fraction content were tested under continuous and pulsatile flow conditions as prescribed by ISO 5840 Standard. A pulse duplicator designed ad hoc allowed the valve prototypes to be tested at different flow rates and frequencies. Pressure and flow were recorded; pressure drops, effective orifice area (EOA), and regurgitant volume were computed to assess the behavior of the valve.

resultsBoth types of Poli-Valves met the minimum requirements in terms of regurgitation and EOA as specified by the ISO 5840 Standard. Results were compared with 5 mechanical heart valves (MHVs) and 5 tissue heart valves (THVs), currently available on the market.

conclusionsBased on these results, PHVs based on styrenic block copolymers, as are Poli-Valves, can be considered a promising alternative for heart valve replacement in the near future.

Indexed as

Heart Valve ProsthesisMaterials TestingPulsatile FlowHemodynamicsHydrodynamicsProsthesis Design

Identifiers

PMID26689146
PMCPMC4910869
OpenAlexW2260018085

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.