Department of Vascular Surgery, VU Medical Center, Amsterdam, The Netherlands.
J Endovasc Ther. 2013 Aug;20(4):498-505. doi: 10.1583/13-4228.1.
To investigate the feasibility of using endoanchor technology to reduce chimney graft-related gutter size in a juxtarenal aneurysm model.
In silicone juxtarenal aortic aneurysm models with two sizes of branch arteries and two sizes of aorta, single chimney graft (CG) configurations were constructed using 6-mm Atrium balloon-expandable stent-grafts in association with two sizes of Gore Excluder main grafts (23 and 28.5 mm). Configurations without Aptus EndoAnchors, with suprarenal placement of EndoAnchors, and with additional infrarenal placement of EndoAnchors were investigated. A total of 12 CG configurations were scanned using 64-slice computed tomography. Gutter volume and gutter areas at the top and bottom of the sealing zone were measured with image processing software.
The combination of supra- and infrarenal placement of endoanchors led to a reduction in gutter volume compared to unanchored configurations. The same configurations also led to a decrease in gutter area at the bottom of the sealing zone.
It is feasible to reduce gutters in CG configurations with the use of endoanchors in an in vitro juxtarenal aneurysm model.
研究使用腔内锚定技术减少肾上动脉瘤模型中烟囱 graft 相关 gutter 大小的可行性。
在具有两种尺寸分支动脉和两种尺寸主动脉的硅树脂肾上腹主动脉瘤模型中，使用 6 毫米 Atrium 球囊扩张支架移植物构建单烟囱 graft（CG）构型，并与两种尺寸的 Gore Excluder 主移植物（23 和 28.5 毫米）联合使用。研究了没有 Aptus EndoAnchors、肾上放置 EndoAnchors 和肾下额外放置 EndoAnchors 的构型。使用 64 层 CT 对 12 种 CG 构型进行了扫描。使用图像处理软件测量密封区顶部和底部的 gutter 体积和 gutter 面积。
与未锚固构型相比，肾上和肾下放置腔内锚定器的组合导致 gutter 体积减少。相同的构型也导致密封区底部的 gutter 面积减少。
在体外肾上腹主动脉瘤模型中，使用腔内锚定器可以减少 CG 构型中的 gutter。
