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Dilatation of the infrarenal aneurysm neck after endovascular exclusion of abdominal aortic aneurysm

Sonesson, Björn LU ; Malina, Martin LU ; Ivancev, Krassi LU ; Lindh, Mats LU ; Lindblad, Bengt LU and Brunkwall, Jan (1998) In Journal of Endovascular Surgery 5(3). p.195-200
Abstract
PURPOSE: To determine the fate of the infrarenal aneurysm neck and suprarenal aorta after endovascular exclusion of abdominal aortic aneurysms (AAAs). METHODS: Thirty-four patients underwent endovascular AAA repair between January 1994 and December 1995 using custom-made stent-grafts constructed from polyester graft material and modified self-expanding Gianturco Z-stents sutured to the graft orifices. Thirty-one patients were available for follow-up. Pre- and postimplantation diameters were measured using spiral computed tomography in the infrarenal aneurysm neck and the suprarenal aorta at the level of the superior mesenteric artery (SMA). RESULTS: The mean follow-up time was 25 months. There was a significant increase of the diameter of... (More)
PURPOSE: To determine the fate of the infrarenal aneurysm neck and suprarenal aorta after endovascular exclusion of abdominal aortic aneurysms (AAAs). METHODS: Thirty-four patients underwent endovascular AAA repair between January 1994 and December 1995 using custom-made stent-grafts constructed from polyester graft material and modified self-expanding Gianturco Z-stents sutured to the graft orifices. Thirty-one patients were available for follow-up. Pre- and postimplantation diameters were measured using spiral computed tomography in the infrarenal aneurysm neck and the suprarenal aorta at the level of the superior mesenteric artery (SMA). RESULTS: The mean follow-up time was 25 months. There was a significant increase of the diameter of the infrarenal aneurysm neck (+ 1.65 mm, p = 0.002), but not in the aorta at the level of the SMA (+0.52 mm, p = 0.100). There was no difference in the change in diameter in the infrarenal neck in the group with a stent adjacent to the level of measurement (n = 20) compared with the group without an adjacent stent (n = 11, p = 0.790). There was no correlation between preimplantation size of the infrarenal neck and its diameter change (r = 0.14, p = 0.488). There was no correlation (r = 0.10, p = 0.603) or association (chi-square test, p = 0.211) between aortic diameter change at the level of the SMA and the infrarenal neck. CONCLUSIONS: This investigation shows a significant dilatation of the infrarenal aneurysm neck, but not in the suprarenal aorta, after endovascular AAA repair with this device. The clinical significance of these findings is unclear. Whether such a dilatation in the infrarenal aneurysm neck may affect the long-term attachment of stent-grafts remains to be shown in the future. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
stent-graft, endovascular grafting, aneurysm morphology, self-expanding stents, Gianturco stent
in
Journal of Endovascular Surgery
volume
5
issue
3
pages
195 - 200
publisher
International Society of Endovascular Specialists
external identifiers
  • pmid:9761569
  • scopus:0031781924
ISSN
1074-6218
DOI
10.1583/1074-6218(1998)005<0195:DOTIAN>2.0.CO;2
language
English
LU publication?
yes
id
1fe73539-7894-4238-abb6-7dda4431ec04 (old id 1112769)
date added to LUP
2008-07-11 10:44:39
date last changed
2017-10-22 04:45:10
@article{1fe73539-7894-4238-abb6-7dda4431ec04,
  abstract     = {PURPOSE: To determine the fate of the infrarenal aneurysm neck and suprarenal aorta after endovascular exclusion of abdominal aortic aneurysms (AAAs). METHODS: Thirty-four patients underwent endovascular AAA repair between January 1994 and December 1995 using custom-made stent-grafts constructed from polyester graft material and modified self-expanding Gianturco Z-stents sutured to the graft orifices. Thirty-one patients were available for follow-up. Pre- and postimplantation diameters were measured using spiral computed tomography in the infrarenal aneurysm neck and the suprarenal aorta at the level of the superior mesenteric artery (SMA). RESULTS: The mean follow-up time was 25 months. There was a significant increase of the diameter of the infrarenal aneurysm neck (+ 1.65 mm, p = 0.002), but not in the aorta at the level of the SMA (+0.52 mm, p = 0.100). There was no difference in the change in diameter in the infrarenal neck in the group with a stent adjacent to the level of measurement (n = 20) compared with the group without an adjacent stent (n = 11, p = 0.790). There was no correlation between preimplantation size of the infrarenal neck and its diameter change (r = 0.14, p = 0.488). There was no correlation (r = 0.10, p = 0.603) or association (chi-square test, p = 0.211) between aortic diameter change at the level of the SMA and the infrarenal neck. CONCLUSIONS: This investigation shows a significant dilatation of the infrarenal aneurysm neck, but not in the suprarenal aorta, after endovascular AAA repair with this device. The clinical significance of these findings is unclear. Whether such a dilatation in the infrarenal aneurysm neck may affect the long-term attachment of stent-grafts remains to be shown in the future.},
  author       = {Sonesson, Björn and Malina, Martin and Ivancev, Krassi and Lindh, Mats and Lindblad, Bengt and Brunkwall, Jan},
  issn         = {1074-6218},
  keyword      = {stent-graft,endovascular grafting,aneurysm morphology,self-expanding stents,Gianturco stent},
  language     = {eng},
  number       = {3},
  pages        = {195--200},
  publisher    = {International Society of Endovascular Specialists},
  series       = {Journal of Endovascular Surgery},
  title        = {Dilatation of the infrarenal aneurysm neck after endovascular exclusion of abdominal aortic aneurysm},
  url          = {http://dx.doi.org/10.1583/1074-6218(1998)005<0195:DOTIAN>2.0.CO;2},
  volume       = {5},
  year         = {1998},
}