View clinical trials related to Aortic Aneurysm.
Filter by:To assess the safety and performance of Aorfix™ Stent Grafts in the treatment of Abdominal Aortic and Aorto-Iliac Aneurysm where a significant degree of vessel angulation exists at the neck of the aneurysm or in the common iliac arteries.
The purpose of this study is to evaluate the safety and efficacy of the Relay thoracic stent-graft system to treat thoracic aortic aneurysms. Efficacy will be evaluated by the device-related adverse event rate of endovascular repair (via Relay Thoracic Stent-Graft) through 1-year. Safety will be evaluated by comparing major adverse events through 1-year in subjects treated with the Relay Thoracic Stent-Graft to those who underwent surgical repair. Long term follow-up is conducted through 5 years.
The purpose of this trial is to assess whether the new endovascular repair technique of the abdominal aortic aneurysm (AAA) is an adequate substitute of the conventional AAA repair.
It has been estimated that 80% of deaths from abdominal aortic aneurysms results from rupture. Endovascular Aneurysm Repair (EVAR) has been applied to RAAA (Ruptured Abdominal Aortic Aneurysm) patients with reports of improvements. Despite the use of EVAR, patients have developed complications with lung and kidney function. This study will investigate certain biochemical processes that will potentially reduce these complications. Knowledge gained from this study may also be used to further research in this field through larger studies.
This study was designed to study safety and effectiveness of the Valiant Thoracic Stent Graft to treat thoracic aortic aneurysms.
The primary objective of this study is to test the hypothesis that time on the ventilator and ICU length of stay will be shorter in TAA patients given postoperative sedation with dexmedetomidine compared to those given standard sedation. Secondary endpoints are: requirement for sedatives vasoactive drugs incidence of postoperative delirium and cost analysis.
The main risk of aortic aneurysms is rupture that leads to a high risk of death. A preventive surgical treatment is thus needed. In order to reduce the morbidity and mortality associated with conventional surgery, an endovascular approach (insertion of an endovascular stent graft)is now widely favored. The main problem of this procedure is the occurrence of endoleaks (persistence of a communication between the aneurysm and the aorta). A new approach is proposed to prevent these endoleaks. The principle is to draw blood from the patient, separate the blood from the platelets, and reinject both platelet rich plasma (PRP) and autologous thrombin, in order to form a platelet gel (PRP + autologous thrombin). Before studying the efficacy of this technique, its safety of use and feasibility must be evaluated.
Objectives. To study the feasibility of an expertise-based randomized controlled trial (RCT) testing the role of traditional surgery (OPEN) versus endovascular repair (EVAR) for abdominal aortic aneurysms (AAA). Study design. We will conduct an expertise-based RCT comparing OPEN to EVAR of non-urgent abdominal aortic aneurysms in patients referred to vascular surgeons practicing at Hamilton Health Sciences, to determine the rate of death and other complications. Quality of life and status at 6 months will also be recorded. The ultimate goal is to determine the feasibility of conducting a pragmatic expertise-based RCT and to inform a future larger study at a national level.
The investigators want to test a navigation system for guidance during insertion of stent graft in abdominal aortic aneurysms. The navigation system consists of software developed by SINTEF Health, a custom made catheter with a micro position sensor in the tip and an emitter than induces an electromagnetic field around the patient. Preoperative CT- and intraoperative DynaCT- data are reconstructed into 3 dimensional images. The 3 dimensional images are loaded into the navigation system. Then the magnetic field, in which the patient finds himself, is calibrated with the 3 dimensional images. When the catheter is inserted into the iliac artery and aorta, the position sensor (in the tip of the catheter) is displayed in real time at the exact anatomic location in the 3 dimensional image. Null hypothesis (H0): - Insertion of stent graft is performed equally satisfactorily with fluoroscopy alone as with both fluoroscopy and new navigation technology Alternative hypothesis (H2): - Insertion of stent graft is NOT performed equally satisfactorily with fluoroscopy alone as with both fluoroscopy and new navigation technology
An abdominal aortic aneurysm (AAA) is a weakened and enlarged area in the abdominal aorta, which is a large blood vessel in the abdomen. If an AAA ruptures, it can be life-threatening. Research has shown that sedentary individuals are at increased risk of developing AAAs. This study will evaluate the effectiveness of an exercise program at limiting the growth of small AAAs in older individuals.