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- W1878652208 startingPage "209" @default.
- W1878652208 abstract "Small-diameter prosthetic cardiovascular bypass grafts have high occlusion rates. Thrombogenicity caused by the lack of endothelial cells (ECs) on the luminal surface of the grafts is one of the main reasons for its occlusion. One strategy to improve the clinical performance of cardiovascular prosthetic grafts has been to seed its luminal surface with a monolayer of the patient's own ECs. In this strategy a two stage seeding procedure is utilized whereby cells obtained from a vein are amplified in cell culture, then seeded onto a fibrin-arginine-glycine-aspartate (RGD) tripeptide-enriched expanded polytetrafluoroethylene (ePTFE) graft in a rotating bioreactor for one week, after which it is surgically implanted. This achieves patency rates approaching those of vein grafts. The disadvantage of two stage seeding is that it requires culture facilities, a large amount of RGD, which is expensive and is confined to elective cases because of the delay between cell cultivation, seeding, and graft implantation. A single stage seeding using freshly extracted ECs that is transplanted onto the graft at the same time frame of the bypass operation without the need for cell cultivation would be an ideal answer for the disadvantages of two stage seeding. Animal trials have been successful but human trials of single stage seeding have been disappointing. It has been hypothesized that extracted ECs are scarce, furthermore, they are washed off the graft surface once exposed to blood flow. This review examines the various techniques/technologies to improve endothelial cell extraction from various sources and retention onto the luminal surface of prosthetic cardiovascular grafts in order to develop a clinically applicable strategy for single stage seeding." @default.
- W1878652208 created "2016-06-24" @default.
- W1878652208 creator A5012549554 @default.
- W1878652208 creator A5016866762 @default.
- W1878652208 creator A5016977133 @default.
- W1878652208 creator A5030372404 @default.
- W1878652208 creator A5077725238 @default.
- W1878652208 date "2005-01-01" @default.
- W1878652208 modified "2023-09-23" @default.
- W1878652208 title "Single stage cell seeding of small diameter prosthetic cardiovascular grafts." @default.
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