A telescopic stent-graft for aortoiliac implantation.
OBJECTIVE
To test a new delivery system for a telescopic stent-graft.


METHODS
Variable overlap between the components of this stent-graft combination allows length adjustment. This device differs from other multi-component stent-grafts in that both components are contained within a single delivery system.


METHODS
The stent-graft was implanted in the distal thoracic to suprarenal aorta of five pigs (35-50 kg), where the arterial diameter falls by almost 50%. The proximal and distal components of the stent-graft were targeted to bony landmarks in the vertebral column.


RESULTS
Inspection of completion angiograms showed both proximal and distal stent-grafts to be within 1 mm of their target locations in all five experiments. Overall combined stent-graft length varied from 13.5 cm to 16.1 cm depending on the location of the bony landmark chosen as the distal target, and on the size of the pig.


CONCLUSIONS
This system may be useful for the repair of abdominal aortic aneurysm whenever preoperative sizing is difficult due to aortic tortuosity, or precluded due to the urgency of the procedure.
Chuter
T A
TA
Department of Radiology, Lund University, University Hospital, Malmo, Sweden.
Malina
M
M
Brunkwall
J
J
Lindh
M
M
Ivancev
K
K
Lindblad
B
B
Risberg
B
B
D000818:Animals; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging / Q000601:surgery; D001027:Aortography; D001807:Blood Vessel Prosthesis; D004867:Equipment Design; D005240:Feasibility Studies; D015607:Stents; D013552:Swine