Comparison of a silicon carbide-coated stent versus a noncoated stent in human beings: The Tenax versus Nir Stent Study's long-term outcome

Unverdorben, Martin; Sippel, Babett; Degenhardt, Ralf; Sattler, Katherine; Fries, Roland; Abt, Bernd; Wagner, Eberhard; Koehler, Henning; Daemgen, Gabriele; Scholz, med. Manfred; Ibrahim, Hassan; Tews, K; Hennen, Benno; Berthold, Heiner K.; Vallbracht, C.

doi:10.1067/mhj.2003.90

Cited by 36 publications

(36 citation statements)

References 22 publications

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“…However, while in vitro studies showed promise, an initial clinical study (using a tantalum stent substrate) resulted in a restenosis rate of 26.8%, again typical for bare metal stents with no major advantage evident [31]. A later iteration of the device utilized a stainless steel substrate, but in a comparison with a commercial stainless steel stent, the silicon carbide again failed to show a restenosis advantage over stainless steel [32]. So what appears to have been a well-investigated strategy again failed to live up to expectations and became another coating casualty in the pre-drugeluting stent era.…”

Section: Silicon Carbide and The Semiconductor Theorymentioning

confidence: 96%

The evolution of cardiovascular stent materials and surfaces in response to clinical drivers: A review

2009

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Section: Silicon Carbide and The Semiconductor Theorymentioning

confidence: 96%

The evolution of cardiovascular stent materials and surfaces in response to clinical drivers: A review

2009

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“…Let us consider the following three well-researched ceramics. While silicon carbide coatings have shown no evidence of advantage over bare metal stents [28], the iridium oxide stents have demonstrated encouraging initial results [29]. On the other hand, the performance of titanium nitride oxide coatings has been highly satisfactory both in animal [30] and clinical [31] studies and is available in the market (TITANOX TM from Hexacath, Rueil-Malmaison, France).…”

Section: Coronary Stentsmentioning

confidence: 99%

Applications of Biomaterials

et al. 2014

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“…The release of nickel, chromium, and molybdenum ions from 316LSS stent may trigger local immune response and inflammatory reactions, which may in turn induce intimal hyperplasia and in-stent restenosis ( Ref 2,5). The use of a protective film is a viable approach to mitigate excessive corrosion and it also combines the desirable characteristics of different materials ( Ref 6,7). In recent years, synthesizing bioceramic film on stent surface has been attracting considerable attention, since the good mechanical properties of metals and good chemical stability of ceramic films can be combined.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of Ti-O Film Modified 316L Stainless Steel Coronary Stents In Vitro

Liu

Leng

Huang

2011

J. of Materi Eng and Perform

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This article dealt with improving corrosion resistance of stent modified using Ti-O film. Ti-O films of various thicknesses were grown on the surface of 316L stainless steel (SS) stents by metal vacuum arc source deposition technology, and the phase composition, the thickness and the adhesion between films and substance were investigated by micro-x-ray diffraction (Micro-XRD), surface profilometer, and scanning electron microscopy (SEM) separately. The corrosion resistance of modified stent was assessed by polarization test in phosphate buffered solution (37 ± 1°C). The result shows that the Ti-O films were very smooth and uniform. There were not any cracks and delaminations after dilation by angioplasty, the adhesion between Ti-O film and stent is satisfactory. The open circuit potential (OCP) of the Ti-O film modified stents was higher than that of the bare stents; it shows that the electrochemical stability of modified stents was more than bare stents. The polarization test result indicates that the passivation stability and anti-breakdown performance of Ti-O film stents had better than bare stents, and no pitting was observed on the surface of both modified stents, but the local film striations were found on the stent surface of the thicker film, which indicated that the Ti-O film stents with certain thickness has good corrosion resistance.

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Comparison of a silicon carbide-coated stent versus a noncoated stent in human beings: The Tenax versus Nir Stent Study's long-term outcome

Cited by 36 publications

References 22 publications

The evolution of cardiovascular stent materials and surfaces in response to clinical drivers: A review

The evolution of cardiovascular stent materials and surfaces in response to clinical drivers: A review

Applications of Biomaterials

Corrosion Resistance of Ti-O Film Modified 316L Stainless Steel Coronary Stents In Vitro

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