Comparative surface thrombogenicity of implanted vascular grafts
| Autor: | Anthony J. Roon, Wesley S. Moore, Gary Campagna, Hedy Towan, Jerry Goldstone |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Aorta
medicine.medical_specialty Polytetrafluoroethylene Mongrel dogs business.industry Polyethylene Terephthalates Surface Properties Thrombogenicity Thrombosis Surgery Polyethylene terephtalate Blood Vessel Prosthesis chemistry.chemical_compound surgical procedures operative Dogs chemistry medicine.artery Medicine Animals Female Aorta Abdominal business Vascular graft |
| Zdroj: | The Journal of surgical research. 22(3) |
| ISSN: | 0022-4804 |
| Popis: | In order to study the comparative thrombogenicity of neointimal surfaces that develop with three types of vascular graft materials (ultralightweight knitted dacron, knitted dacron external velour, and expanded Teflon), 36 female mongrel dogs had their infrarenal aortas alternately replaced with one of the three grafts. At the end of 3 or 6 months, the grafts were removed and the surface thrombogenicity of the neointimal surface was determined. Each graft was examined visually and microscopically for evidence of “healing.” At 6 months the external velour graft is lined more frequently than the other two grafts. The external velour graft has a markedly better incidence of cellular healing noted microscopically than the other two grafts at both time intervals. While the expanded Teflon has an initially lower surface thrombogenicity (probably due to the characteristics of Teflon surface), at 6 months, the velour graft has the lowest surface thrombogenicity. This is most likely due to cellular healing. Of all the completely lined grafts at both time intervals, the surface thrombogenicity of the velour grafts was most like that of the normal aorta. The velour graft appears to develop the least thrombogenic neointimal surface while becoming most frequently healed with a cellular neointimal surface. |
| Databáze: | OpenAIRE |
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