Hybrid textile heart valve prosthesis: preliminary in vitro evaluation
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Antoine Vaesken
Abstract
Transcatheter aortic valve implantation (TAVI) is nowadays a popular alternative technique to surgical valve replacement for critical patients. Biological valve tissue has been used in these devices for over a decade now with over 100,000 implantations. However, material degradations due to crimping for catheter insertion purpose have been reported, and with only 6-year follow-up, no information is available about the long-term durability of biological tissue. Moreover, expensive biological tissue harvesting and chemical treatment procedures tend to promote the development of synthetic valve leaflet materials. Textile polyester (PET) material is characterized by outstanding folding and strength properties combined with proven biocompatibility and could therefore be considered as a candidate to replace biological valve leaflets in TAVI devices. Nevertheless, the material should be preferentially partly elastic in order to limit water hammer effects at valve closing time and prevent exaggerated stress from occurring into the stent and the valve. The purpose of the present work is to study in vitro the mechanical as well as the hydrodynamic behavior of a hybrid elastic textile valve device combining non-deformable PET yarn and elastic polyurethane (PU) yarn. The hybrid valve properties are compared with those of a non-elastic textile valve. Testing results show improved hydrodynamic properties with the elastic construction. However, under fatigue conditions, the interaction between PU and PET yarns tends to limit the valve durability.
Author Statement
Research funding: Authors state no funding involved.
Conflict of interest: Authors state no conflict of interest.
Informed consent: Informed consent is not applicable.
Ethical approval: Ethical approval is not applicable.
References
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- The role of textile engineering in regenerative medicine
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- Fibrous composite material for textile heart valve design: in vitro assessment
- Electro-spun PLA-PEG-yarns for tissue engineering applications
- Preparation, characterization and blood compatibility assessment of a novel electrospun nanocomposite comprising polyurethane and ayurvedic-indhulekha oil for tissue engineering applications
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- Differential mineralization of human dental pulp stem cells on diverse polymers
- Heart valves from polyester fibers: a preliminary 6-month in vivo study
- Adaptation of cardiovascular system stent implants
- Synthesizing selenium- and silver-substituted hydroxyapatite-based bone grafts and their effects on antibacterial efficiency and cell viability
- Long-term recording performance and biocompatibility of chronically implanted cylindrically-shaped, polymer-based neural interfaces
- Morphology and contractile gene expression of adipose-derived mesenchymal stem cells in response to short-term cyclic uniaxial strain and TGF-β1
- A novel ceramic tibial component is as safe as its metal counterpart
- Short communication
- Hybrid textile heart valve prosthesis: preliminary in vitro evaluation
Articles in the same Issue
- Frontmatter
- Editorial
- The role of textile engineering in regenerative medicine
- Research articles
- Fibrous composite material for textile heart valve design: in vitro assessment
- Electro-spun PLA-PEG-yarns for tissue engineering applications
- Preparation, characterization and blood compatibility assessment of a novel electrospun nanocomposite comprising polyurethane and ayurvedic-indhulekha oil for tissue engineering applications
- Three-dimensional bioglass-collagen-phosphatidylserine scaffolds designed with functionally graded structure and mechanical features
- Differential mineralization of human dental pulp stem cells on diverse polymers
- Heart valves from polyester fibers: a preliminary 6-month in vivo study
- Adaptation of cardiovascular system stent implants
- Synthesizing selenium- and silver-substituted hydroxyapatite-based bone grafts and their effects on antibacterial efficiency and cell viability
- Long-term recording performance and biocompatibility of chronically implanted cylindrically-shaped, polymer-based neural interfaces
- Morphology and contractile gene expression of adipose-derived mesenchymal stem cells in response to short-term cyclic uniaxial strain and TGF-β1
- A novel ceramic tibial component is as safe as its metal counterpart
- Short communication
- Hybrid textile heart valve prosthesis: preliminary in vitro evaluation
