A new unibody branched stent-graft for reconstruction of the canine aortic arch.
To evaluate the feasibility and safety of a new unibody branched stent-graft for reconstruction of the canine aortic arch.
MATERIALS AND METHODS
Twenty adult hybrid dogs were used for the experiments. Ten dogs were implanted with single-branched stent-grafts; the other ten dogs were implanted with double-branched stent-grafts. The stent-grafts were implanted transluminally via the abdominal aorta. The branched limbs were caught and pulled into supra-aortic vessels using gooseneck snare wires introduced via the axillary arteries. The animals were euthanized 4 months after implantation.
One of the ten dogs implanted with a single-branched stent-graft died from failure of the implantation procedure, and two of the ten dogs implanted with double-branched stent-grafts died from failure of the procedure and excessive blood loss. After month 4, the remaining unibody branched stent-grafts were patent and did not migrate.
This new unibody branched stent-graft could be used to reconstruct the aortic arch. This is a total endovascular technique, and compared to other branched stent-grafts appears to be safer and easier to implant.
Department of Radiology, The First Affiliated Hospital of China Medical University, Liaoning, People's Republic of China.
SourceEuropean journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery 44:2 2012 Aug pg 139-44
Blood Vessel Prosthesis
Blood Vessel Prosthesis Implantation
Tomography, X-Ray Computed
Pub Type(s)Evaluation Studies
Research Support, Non-U.S. Gov't