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Fixation of infrarenal aortic stent-grafts using laparoscopic banding -- an experimental study in pigs

Sonesson, Björn LU ; Montgomery, Agneta LU ; Ivancev, Krassi LU and Lindblad, Bengt LU (2001) In European Journal of Vascular and Endovascular Surgery 21(1). p.40-45
Abstract
PURPOSE: to test whether a laparoscopically-placed external band around the infrarenal aorta could stop vessel dilatation and prevent stent-graft detachment from the aortic wall. METHODS: in 13 growing pigs Gianturco-based stent-grafts were placed in the infrarenal aorta. In eight pigs, an external PTFE band (1 cm width) was placed laparoscopically around the infrarenal aorta. The remaining five pigs served as controls. Angiographic aortic diameters were measured: (1) at the most distal renal artery; (2) 1.5 cm further distally; (3) at the middle of the stent-graft; and (4) below the stent-graft, 1 cm above the aortic bifurcation. RESULTS: at a median follow-up of 16 weeks the pigs in the control group (n =5) and in the banded group ( n... (More)
PURPOSE: to test whether a laparoscopically-placed external band around the infrarenal aorta could stop vessel dilatation and prevent stent-graft detachment from the aortic wall. METHODS: in 13 growing pigs Gianturco-based stent-grafts were placed in the infrarenal aorta. In eight pigs, an external PTFE band (1 cm width) was placed laparoscopically around the infrarenal aorta. The remaining five pigs served as controls. Angiographic aortic diameters were measured: (1) at the most distal renal artery; (2) 1.5 cm further distally; (3) at the middle of the stent-graft; and (4) below the stent-graft, 1 cm above the aortic bifurcation. RESULTS: at a median follow-up of 16 weeks the pigs in the control group (n =5) and in the banded group ( n =7) increased their weight from 24 kg to 107 kg and 23 to 83 kg, respectively. In the control group, aortic dimensions increased by approximately 40% at all levels. In the banded group, aortic dimensions were unchanged at levels 2 and 3, but increased significantly at levels 1 and 4 (i.e. above and below the stent-graft). In the control group all stent-grafts detached causing a proximal perigraft leakage. No detachment or proximal perigraft leak was observed in the banded group. CONCLUSION: a laparoscopically placed external band around the infrarenal aorta of growing pigs seems to counteract the vessel dilatation and thereby provides a stable fixation of self-expandable stent-grafts. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Stent-grafts, Aneurysm, Laparoscopy, Endoleak, Migration
in
European Journal of Vascular and Endovascular Surgery
volume
21
issue
1
pages
40 - 45
publisher
Elsevier
external identifiers
  • pmid:11170876
  • scopus:0035119359
ISSN
1532-2165
DOI
10.1053/ejvs.2000.1261
language
English
LU publication?
yes
id
1d5b63ef-69a3-48dc-9a21-a1b8e114252c (old id 1122224)
date added to LUP
2008-07-15 09:25:04
date last changed
2018-05-29 11:10:10
@article{1d5b63ef-69a3-48dc-9a21-a1b8e114252c,
  abstract     = {PURPOSE: to test whether a laparoscopically-placed external band around the infrarenal aorta could stop vessel dilatation and prevent stent-graft detachment from the aortic wall. METHODS: in 13 growing pigs Gianturco-based stent-grafts were placed in the infrarenal aorta. In eight pigs, an external PTFE band (1 cm width) was placed laparoscopically around the infrarenal aorta. The remaining five pigs served as controls. Angiographic aortic diameters were measured: (1) at the most distal renal artery; (2) 1.5 cm further distally; (3) at the middle of the stent-graft; and (4) below the stent-graft, 1 cm above the aortic bifurcation. RESULTS: at a median follow-up of 16 weeks the pigs in the control group (n =5) and in the banded group ( n =7) increased their weight from 24 kg to 107 kg and 23 to 83 kg, respectively. In the control group, aortic dimensions increased by approximately 40% at all levels. In the banded group, aortic dimensions were unchanged at levels 2 and 3, but increased significantly at levels 1 and 4 (i.e. above and below the stent-graft). In the control group all stent-grafts detached causing a proximal perigraft leakage. No detachment or proximal perigraft leak was observed in the banded group. CONCLUSION: a laparoscopically placed external band around the infrarenal aorta of growing pigs seems to counteract the vessel dilatation and thereby provides a stable fixation of self-expandable stent-grafts.},
  author       = {Sonesson, Björn and Montgomery, Agneta and Ivancev, Krassi and Lindblad, Bengt},
  issn         = {1532-2165},
  keyword      = {Stent-grafts,Aneurysm,Laparoscopy,Endoleak,Migration},
  language     = {eng},
  number       = {1},
  pages        = {40--45},
  publisher    = {Elsevier},
  series       = {European Journal of Vascular and Endovascular Surgery},
  title        = {Fixation of infrarenal aortic stent-grafts using laparoscopic banding -- an experimental study in pigs},
  url          = {http://dx.doi.org/10.1053/ejvs.2000.1261},
  volume       = {21},
  year         = {2001},
}