Kenney D A, Tu R, Peterson R C, Lu C L
Riverside Community Hospital, Department of Surgery, California.
ASAIO Trans. 1990 Jul-Sep;36(3):M761-3.
Nine chronic implants of 6 mm diameter vascular grafts were performed in an ovine model to compare the performance of the longitudinally compliant Ultraflex PTFE-Plus vascular prosthesis with that of the Gore-Tex reinforced expanded polytetra fluoroethylene (PTFE) graft. Implants were performed in the sheep neck as right carotid to left jugular arterio-venous (A-V) grafts. Grafts were explanted after 6 months unless they occluded earlier. The Ultraflex graft demonstrated superior handling characteristics during implant. Patency rate at 6 months was 60% (three of five) for the Ultraflex graft (experimental graft by Baxter Edwards, CVS Division, Irvine, CA), and 25% (one of four) for the Gore-Tex graft (WL Gore & Associates, Inc., Flagstaff, AZ). The Gore-Tex prosthesis had more calcification of the graft wall.
在绵羊模型中植入了9个直径为6毫米的慢性血管移植物，以比较纵向顺应性的Ultraflex PTFE-Plus血管假体与Gore-Tex增强型膨体聚四氟乙烯（PTFE）移植物的性能。在绵羊颈部进行植入，作为右颈动脉至左颈静脉的动静脉（A-V）移植物。除非移植物提前闭塞，否则在6个月后将其取出。Ultraflex移植物在植入过程中表现出更好的操作特性。Ultraflex移植物（由加利福尼亚州欧文市CVS部门的百特爱德华兹公司生产的实验性移植物）6个月时的通畅率为60%（5个中有3个），而Gore-Tex移植物（亚利桑那州弗拉格斯塔夫的WL Gore & Associates公司生产）的通畅率为25%（4个中有1个）。Gore-Tex假体的移植物壁钙化更多。
