The elimination of XXXX in open @entity130 vascular reconstruction: A novel technique using an animal model.

@entity17285 @entity254 @entity117 @entity1317 @entity736 @entity715 @entity130
BACKGROUND: The standard approach to vascular @entity130 involves arterial exposure and reconstruction using either a vein or @entity736 graft. We have developed a novel technique to repairing @entity1317 by deploying commercially available vascular stents through an open approach, thus eliminating the need for suture @entity254 . The objective of this study was to evaluate the feasibility, stent deployment time (SDT), and stent patency of this technique in a ewe @entity1317 model. METHODS: After proximal and distal control, a 2-cm superficial femoral arterial segment was resected in 8 Dorper ewes to simulate an @entity1317 . Two stay sutures were placed in the 3- and 9-o'clock positions of the transected arterial ends to prevent further retraction. Ten milliliters of 10-IU/mL heparinized saline was flushed proximally and distally. An arteriotomy was then created 2.5 cm from the transected distal end through which we deployed Gore Viabahn stents with a 20% oversize and at least 1-cm overlap with the native vessel on either end. The arteriotomy was then closed with 3 (1) interrupted 6-0 Prolene sutures. The ewes were fed @entity117 325 mg daily. Duplex was performed at 2 months postoperatively to evaluate stent patency. SDT was defined as time from stay suture placement to arteriotomy closure. RESULTS: The 8 ewes weighed a mean (SD) of 34.4 (4.3) kg. The mean (SD) superficial femoral arterial was 4.3 (0.6) mm. @entity17285 mm * 5 cm and two 6 mm * 5 cm Gore Viabahn stents were deployed. The mean (SD) SDT was 34 (19) minutes, with a trend toward less time with increasing experience (SDTmax, 60 minutes; SDTmin, 10 minutes). Duplex performed at 2 months postoperatively showed stent patency in five of eight stents. There was an association between increasing SDT and stent @entity715 . CONCLUSION: Open deployment of commercially available vascular stents to treat @entity1317 is a conceptually sound and technically feasible alternative to standard open repair. Larger studies are needed to refine this technique and minimize stent complications, which are likely technical in nature.
