Advanced

The effect of endovascular aortic stents placed across the renal arteries

Malina, Martin LU ; Lindh, Mats LU ; Ivancev, Krassi LU ; Frennby, Bo LU ; Lindblad, Bengt LU and Brunkwall, Jan (1997) In European Journal of Vascular and Endovascular Surgery 13(2). p.207-213
Abstract
OBJECTIVES: To investigate renal artery patency and renal function after deployment of aortic stents covering the orifices of renal arteries. DESIGN: Prospective open animal study. SETTING: Department of Experimental Surgery at a university hospital. MATERIALS: Twenty-three pigs were used. METHODS: Ten pigs were observed for 1 h after graft-anchoring aortic stents, Gianturco (5) and Palmaz (5), were placed so that the stents covered the renal arterial orifices. In 13 pigs, Gianturco (6) and Palmaz (7) stents without grafts were placed over the renal arteries and left in situ for 7 days. Renal function and blood flow were measured by renograms, iohexol clearance and ultrasonic blood flow meter and patency was verified by angiograms. The... (More)
OBJECTIVES: To investigate renal artery patency and renal function after deployment of aortic stents covering the orifices of renal arteries. DESIGN: Prospective open animal study. SETTING: Department of Experimental Surgery at a university hospital. MATERIALS: Twenty-three pigs were used. METHODS: Ten pigs were observed for 1 h after graft-anchoring aortic stents, Gianturco (5) and Palmaz (5), were placed so that the stents covered the renal arterial orifices. In 13 pigs, Gianturco (6) and Palmaz (7) stents without grafts were placed over the renal arteries and left in situ for 7 days. Renal function and blood flow were measured by renograms, iohexol clearance and ultrasonic blood flow meter and patency was verified by angiograms. The kidneys were microscopically examined for signs of ischaemia and microemboli. RESULTS: One renal artery covered by a graft-anchoring Gianturco stent occluded. The remaining renal arteries remained patent without any significant decrease in renal blood flow after stent deployment. Normal renal function and histology was maintained. CONCLUSIONS: Aortic stents placed at the level of the renal arteries do not affect renal blood flow within 1 week in this experimental model. This may prove valuable in endovascular treatment of aortic aneurysms and in other procedures involving stents. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aortic aneurysm, Endovascular treatment, Stent, Renal artery obstruction, Renal blood flow
in
European Journal of Vascular and Endovascular Surgery
volume
13
issue
2
pages
207 - 213
publisher
Elsevier
external identifiers
  • pmid:9091156
  • scopus:0030959437
ISSN
1532-2165
DOI
10.1016/S1078-5884(97)80020-2
language
English
LU publication?
yes
id
0d1d60eb-1789-4373-9030-b0ce46fd4dfe (old id 1111304)
date added to LUP
2008-07-17 10:54:34
date last changed
2017-01-01 06:52:24
@article{0d1d60eb-1789-4373-9030-b0ce46fd4dfe,
  abstract     = {OBJECTIVES: To investigate renal artery patency and renal function after deployment of aortic stents covering the orifices of renal arteries. DESIGN: Prospective open animal study. SETTING: Department of Experimental Surgery at a university hospital. MATERIALS: Twenty-three pigs were used. METHODS: Ten pigs were observed for 1 h after graft-anchoring aortic stents, Gianturco (5) and Palmaz (5), were placed so that the stents covered the renal arterial orifices. In 13 pigs, Gianturco (6) and Palmaz (7) stents without grafts were placed over the renal arteries and left in situ for 7 days. Renal function and blood flow were measured by renograms, iohexol clearance and ultrasonic blood flow meter and patency was verified by angiograms. The kidneys were microscopically examined for signs of ischaemia and microemboli. RESULTS: One renal artery covered by a graft-anchoring Gianturco stent occluded. The remaining renal arteries remained patent without any significant decrease in renal blood flow after stent deployment. Normal renal function and histology was maintained. CONCLUSIONS: Aortic stents placed at the level of the renal arteries do not affect renal blood flow within 1 week in this experimental model. This may prove valuable in endovascular treatment of aortic aneurysms and in other procedures involving stents.},
  author       = {Malina, Martin and Lindh, Mats and Ivancev, Krassi and Frennby, Bo and Lindblad, Bengt and Brunkwall, Jan},
  issn         = {1532-2165},
  keyword      = {Aortic aneurysm,Endovascular treatment,Stent,Renal artery obstruction,Renal blood flow},
  language     = {eng},
  number       = {2},
  pages        = {207--213},
  publisher    = {Elsevier},
  series       = {European Journal of Vascular and Endovascular Surgery},
  title        = {The effect of endovascular aortic stents placed across the renal arteries},
  url          = {http://dx.doi.org/10.1016/S1078-5884(97)80020-2},
  volume       = {13},
  year         = {1997},
}