Aortic Aneurysm, Abdominal Clinical Trial
Official title:
Evaluation of Visceral Function Following Endovascular Aortic Aneurysm Repair Using Branched Stent- Grafts
The purpose of this study is to evaluate visceral function, after endovascular repair of thoracoabdominal aneurysms or ascending/aortic arch aneurysms.
This study will evaluate the effect of endovascular repair of thoracoabdominal aortic aneurysms (Types I-IV) on visceral function or aortic arch aneurysms using custom manufactured and off the shelf stent grafts. Specifically, the device orientation and configuration will be evaluated with respect to renal function. Since detailed CT scan imaging will be performed prior to and after endovascular repair, critical data concerning each branched vessel length, tangential orientation from the aorta, angle of incidence, and diameter can be determined. This information can then be coupled with hemodynamic data obtained from duplex ultrasonography as well as changes in renal volume, estimated glomerular filtration rate (eGFR), and flow characteristics over time. By analyzing the data in this fashion, it may be possible to determine changes in hemodynamics and/or physiologic conditions with respect to branched stent-graft design characteristics. These data may be utilized to enhance current device design and improve patient outcomes. The FDA has approved the use of commercially available devices to be used in conjunction with the investigational device if the Investigator deems this necessary. ;
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