Lannerstad O, Björck C G, Dougan P, Ericsson B F, Nilsson B, Bergqvist D
Acta Chir Scand. 1986 Mar;152:187-90.
The acute thrombogenicity of a new type of polyurethane urea graft was compared with that of autologous femoral vein graft in a sheep carotid artery interposition model. There was significantly more thrombus formation (as measured from thrombus weight and thrombus-free surface) and greater platelet accumulation in the polyurethane graft. Despite flow restriction to 25 ml/min, the patency rates after 4 hours were similar; all veins were patent and only one of the eight polyurethane grafts was occluded.
在绵羊颈动脉置换模型中，将一种新型聚氨酯脲移植物的急性血栓形成性与自体股静脉移植物进行了比较。聚氨酯移植物中的血栓形成明显更多（以血栓重量和无血栓表面测量），血小板聚集也更多。尽管血流限制为25毫升/分钟，但4小时后的通畅率相似；所有静脉均通畅，8个聚氨酯移植物中只有1个闭塞。
