Acute Thrombogenicity of a Compliant Polyurethane Urea Graft Compared with Polytetrafluoroethylene: An Experimental Study in Sheep
| Autor: | David Bergqvist, B.F. Ericsson, O. Lannerstad, B. Nilsson, P. Dougan |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
medicine.medical_specialty
Sheep Polytetrafluoroethylene Platelet Aggregation Polyurethanes Thrombogenicity Biomaterial Biocompatible Materials Thrombosis Anastomosis medicine.disease Blood Vessel Prosthesis Surgery chemistry.chemical_compound surgical procedures operative chemistry medicine Urea Animals Platelet Thrombus Compliance Polyurethane |
| Zdroj: | European Surgical Research. 19:6-10 |
| ISSN: | 1421-9921 0014-312X |
| DOI: | 10.1159/000128674 |
| Popis: | The acute thrombogenicity of a new polyurethane urea graft has been compared with polytetrafluoroethylene (PTFE) grafts using labelled homologous platelets in the carotid arteries of sheep in a low-flow model. There was no difference in patency. Thrombus weight and thrombus free surface were the same in both types of graft after 4 h. The accumulation of homologous 32P platelets was measured at the 2 anastomoses and at a midgraft position. At no point was there any statistically significant difference between the 2 grafts, but the activity was always somewhat higher in the polyurethane grafts. Although more compliant, in this study polyurethane urea grafts behaved much like PTFE ones. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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