Expanded PTFE Prostheses as Arterial Substitutes in Humans: Late Pathological Findings in 73 Excised Grafts

Formichi, Maxime; Guidoin, Robert; Jausseran, J M; Awad, John; Johnston, K. Wayne; King, Martin W.; R, Courbier; Marois, M; Rouleau, Claude; Batt, Michel; Girard, Jean‐François; Gosselin, C.

doi:10.1016/s0890-5096(06)60773-5

Cited by 47 publications

(12 citation statements)

References 20 publications

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“…Thus, e-PTFE has the required mechanical properties and excellent chemical stability as a synthetic material. However, thrombogenic reactions can occur between the surface of e-PTFE and blood resulting in poor performance as a small diameter, synthetic arterial substitute [200]. Immobilization of anti-thrombogenic moieties onto the surface provides one means to alter the physical and biological properties of the surface and surface modification is, therefore, required to covalently attach these organic moieties to the surface.…”

Section: Poly(tetrafluoroethylene)mentioning

confidence: 99%

Plasma-surface modification of biomaterials

Chu

Chen

Wang

et al. 2002

Materials Science and Engineering: R: Reports

1,380

652

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Plasma-surface modification (PSM) is an effective and economical surface treatment technique for many materials and of growing interests in biomedical engineering. This article reviews the various common plasma techniques and experimental methods as applied to biomedical materials research, such as plasma sputtering and etching, plasma implantation, plasma deposition, plasma polymerization, laser plasma deposition, plasma spraying, and so on. The unique advantage of plasma modification is that the surface properties and biocompatibility can be enhanced selectively while the bulk attributes of the materials remain unchanged. Existing materials can, thus, be used and needs for new classes of materials may be obviated thereby shortening the time to develop novel and better biomedical devices. Recent work has spurred a number of very interesting applications in the biomedical field. This review article concentrates upon the current status of these techniques, new applications, and achievements pertaining to biomedical materials research. Examples described include hard tissue replacements, blood contacting prostheses, ophthalmic devices, and other products. #

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Section: Poly(tetrafluoroethylene)mentioning

confidence: 99%

Plasma-surface modification of biomaterials

Chu

Chen

Wang

et al. 2002

Materials Science and Engineering: R: Reports

1,380

652

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“…Our teams of scientists have been actively working closely with clinicians for several decades. The retrieval programs of vascular grafts and heart valves harvested at reoperation or autopsy were instrumental in contributing to the improvements of devices for open surgery [20][21][22]. Consequently, our teams became involved with cardiovascular devices for percutaneous surgery, initially stent-grafts.…”

Section: Descriptive Clinical Achievementsmentioning

confidence: 99%

Transcatheter Heart Valve Crimping and Expansion: Commentary

Guidoin¹,

Mao²,

Zegdi³

et al. 2017

J Med Surg Pathol

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Bovine pericardium represents the material of choice to serve as leaflets but this material is fragile and mishandling might lead to dramatic consequences. The complete innocuousness of handling at implantation has not been reached as crimping and balloon inflation cause various degrees of injury. These can impair the physical characteristics and aggravate the thrombogenicity. The design of the device must promote the long-term durability of the pericardium. The role and selection of polyester fabrics as buffer between the metallic frame and the pericardium is likely to prevent major abrasion at implantation and in situ.

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“…Relevant materials applied to generate bypass grafts basically comprise autologous vessels, e.g., saphenous veins or polymers such as polyethylene terephthalate (Dacron) and polytetrafluoroethylene (PTFE), which have been in clinical use for decades. However, autologous vessel grafts are often not or no longer available due to concomitant diseases, prior harvest or incompatible caliber [84,87], and although subject of intense research for many years, alloplastic materials are prone to high incidences of thrombotic occlusion, infectious complications, and restenoses due to intimal hyperplasia [18,19,113].…”

Section: Introductionmentioning

confidence: 99%

Bioartificial fabrication of regenerating blood vessel substitutes: requirements and current strategies

Wilhelmi¹,

Jockenhoevel

Mela³

2014

Biomedical Engineering / Biomedizinische Technik

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This work reviews the tremendous development in the field of vascular graft tissue engineering driven by a clear and increasing clinical need for functional vascular replacements able to grow and remodel. The different strategies to tissue engineer blood vessels are presented, from the classical approach of a living implant generated in vitro by conditioning a cell-seeded scaffold to remarkable paradigm shifts either i) toward a completely biology-driven strategy (scaffold-free approaches) or ii) the opposite tendency of cell-free scaffolds aiming at eliciting the host reaction for in situ tissue engineering. In the scaffold-based approaches emphasis is given to the material choice.

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Expanded PTFE Prostheses as Arterial Substitutes in Humans: Late Pathological Findings in 73 Excised Grafts

Cited by 47 publications

References 20 publications

Plasma-surface modification of biomaterials

Plasma-surface modification of biomaterials

Transcatheter Heart Valve Crimping and Expansion: Commentary

Bioartificial fabrication of regenerating blood vessel substitutes: requirements and current strategies

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