Impregnated Polyester Arterial Prostheses: Performance and Prospects

Chakfé, Nabil; Bizonne, Sophie Cottin; Beaufigeau, M.; Urban, Elisabeth; Cardon, Alain; Doillon, Charles J.; Magnen, J. F. Le; Durand, Bernard; Jg, Kretz

doi:10.1007/s100169900291

Cited by 19 publications

(11 citation statements)

References 109 publications

(97 reference statements)

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“…In low-diameter arterial prostheses, PET intrinsic surface properties are at the origin of the absence of neoendothelium formation which is known to be one cause of graft failure [9][10][11]. This explains why PET textile prostheses are not used for diameters of less than 8 mm [9,10,12,13].…”

Section: Introductionmentioning

confidence: 97%

Low Pressure Radio Frequency Ammonia Plasma Surface Modification on Poly(ethylene terephthalate) Films and Fibers: Effect of the Polymer Forming Process

Öteyaka

Chevallier

Turgeon

et al. 2011

Plasma Chem Plasma Process

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We investigated the effect of a polyethylene terephthalate (PET) forming process on radiofrequency ammonia plasma surface-treated PET flat films and fibres obtained by melt blowing. Ammonia plasma treatment allowed for the incorporation of amino functionalities on both the film and fibre surfaces, with higher values observed at very short treatment times. This plasma treatment also induced polymer chain scissions which were observed as the formation of hydrophilic nodules that coalesced together and were loosely bound to the underlying polymeric materials. These plasma-induced surface damages were notably more important on the melt-blown PET fibres. Consequently, maximisation of the surface amino groups with minimal polymer chain breaking was achieved using very short plasma treatment times (typically 1 s). We also demonstrated that the polymer forming process must be taken into account when plasma modifications are to be performed on PET, as it may already lead to polymer chain breakings subsequently added to those induced in the plasma environment.

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Section: Introductionmentioning

confidence: 97%

Low Pressure Radio Frequency Ammonia Plasma Surface Modification on Poly(ethylene terephthalate) Films and Fibers: Effect of the Polymer Forming Process

Öteyaka

Chevallier

Turgeon

et al. 2011

Plasma Chem Plasma Process

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“…1 However, since the advent of presealing with special resorbable matrixes, this technique has been largely abandoned. 2 Albumin, gelatin, and collagen have been used as sealing matrixes after reticulation with various chemical reagents. Presealed grafts have been highly successful for abdominal aortic surgery in terms of patency and infection.…”

Section: Introductionmentioning

confidence: 99%

Sealing of Polyester Prostheses with Autologous Fibrin Glue and Bone Marrow

Cardon

Chakfé

Thaveau

et al. 2000

Annals of Vascular Surgery

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“…Polyester vascular prostheses have proven to be effective and durable conduits of medium and large diameters for nearly five decades (1,2). They have varying degrees of porosity, which allows for the interstices of the fabric, resulting in a firm attachment of both inner capsule and perigraft tissue.…”

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confidence: 99%

In Vitro and In Vivo Characterization of a Silk Fibroin‐Coated Polyester Vascular Prosthesis

2008

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Silk fibroin (SF) is well known to be biocompatible, degradable, and nontoxic. In this study, SF was impregnated into a porous polyester graft (InterVascular external velour, InterVascular, Inc., La Ciotat, France), 8 mm in diameter. The SF-impregnated graft was investigated in vitro and in vivo to evaluate its potential for use as a new vascular graft impervious to blood, while retaining high porosity for tissue ingrowth and biological healing. For in vitro investigation, the water permeability, coating weight, morphology, and mechanical properties of the SF-impregnated grafts were compared with collagen-coated grafts (InterGard grafts, InterVascular, Inc.). The water permeability of the controls (1388 +/- 30.5 mL/cm(2)/min at 120 mm Hg) was reduced >99% by SF impregnation, rendering the graft impervious to blood. The coating weight of the collagen was 117 +/- 22 mg/g of graft, producing a slightly lower value than the InterGard prosthesis (302 +/- 23 mg/g). For the in vivo experiment, six SF-sealed vascular grafts were implanted in the abdominal aorta of dogs for scheduled periods ranging from 4 h to 6 months. Commercial collagen-impregnated grafts (InterGard) and untreated external velour grafts (InterVascular) were also implanted for scheduled periods ranging from 1 to 6 months for comparison. Gross observation of the explanted grafts and histological examination of the representative sections were conducted for two types of grafts using a light microscope after hematoxylin-eosin staining. These SF-impregnated grafts showed less foreign body and inflammation reactions, and the SF layer was almost completely absorbed. The average of the values in each period for the SF grafts was 48% neointima at 1 month, 85% at 3 months, and 97% at 6 months, whereas those of the InterGard prostheses was 34, 46, and 90%, respectively. This study demonstrated that the use of a biodegradable SF as biological sealant can be a feasible approach to prepare impervious textile arterial prostheses. The SF-impregnated graft showed less thrombogenesis and induced host cell migration along the matrix without foreign body or inflammatory reactions. Moreover, it appears to facilitate the development of endothelial-like cells.

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Impregnated Polyester Arterial Prostheses: Performance and Prospects

Cited by 19 publications

References 109 publications

Low Pressure Radio Frequency Ammonia Plasma Surface Modification on Poly(ethylene terephthalate) Films and Fibers: Effect of the Polymer Forming Process

Low Pressure Radio Frequency Ammonia Plasma Surface Modification on Poly(ethylene terephthalate) Films and Fibers: Effect of the Polymer Forming Process

Sealing of Polyester Prostheses with Autologous Fibrin Glue and Bone Marrow

In Vitro and In Vivo Characterization of a Silk Fibroin‐Coated Polyester Vascular Prosthesis

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