View clinical trials related to Abdominal Aortic Aneurysm (AAA).Filter by:
The purpose of this research study is to look at whether an investigational imaging agent, 64Cu-DOTA-ECL1i, used during Positron Emission Tomography (PET)/ Computed Tomography (CT) scanning, can help to identify conditions that place patients at an increased risk for AAA rupture. The study is also looking more closely at cellular, molecular and inflammatory properties of the aortic wall. Having the ability to identify markers that predict AAA progression/expansion and risk for rupture could allow the physician to manage patients in a more individualized, personal way.
Abdominal aortic aneurysm (AAA) is a degenerative vascular disease, which is typically asymptomatic until rupture, resulting in high mortality. AAAs are more prevalent in men over age 65, though rupture is disproportionately higher in women. Due to nonlinear and unpredictable aortic dilatation, it is challenging to predict the AAA rupture using clinical diagnostics based on morphology. No medical therapy is used clinically to treat AAA, and there is an unmet need for clinically translatable, molecular biomarkers of AAA disease activity for surveillance and patient-specific management. The goal of this proposal is to develop a new approach for the diagnosis and targeted therapy of AAA.
Nurea wants to set-up a pivotal phase clinical study for its software PRAEVAorta, a decision-making support for diagnosis and follow-up of abdominal aorta aneurysm. This study is a comparative study. Its purpose is to demonstrate the adequacy of PRAEVAorta to the current Gold Standard in the care of patients with abdominal aortic aneurysm. The currently benchmark methods are the maximal diameter method (Hand-held measurement of maximum diameter on scan images) and the segmentation method for the aneurysm volume (manual segmentation of scan images, then calculation of the AAA volume by counting the pixels). The hypothesis is that 90% of the segmented patients have a volume ratio and a diameter ration equal to or greater than 90%.
Study purpose: This study will investigate anatomical factors associated with increased risk of major adverse aorta-related event and accelerated growth of abdominal aneurysm based on 3-dimensional analysis of CT images. Study design: a multicenter single-arm prospective observational study. Subject: patients with small abdominal aortic aneurysm with maximal diameter of 30-50 mm (n=323) Methods: Patients diagnosed with small AAA based on CT will be enrolled after considering inclusion and exclusion criteria and prospectively followed clinically and with CT at 1 year. Primary endpoint: Major adverse aorta-related events (death, aortic rupture, or aneurysm growth >0.4 cm per year) at 1 year Secondary endpoints: 1) clinical events : death, aortic rupture, aneurysm growth >0.4 cm per year, surgical or endovascular repair 2) Changes in CT parameters of aneurysm: diameter, volume, wall shear stress
EVAR continues to evolve as a treatment option for AAA. New devices which are specifically designed to perform adequately across the spectrum of potential anatomic presentations for infrarenal EVAR are needed. The Department of Vascular Surgery at Catharina Hospital Eindhoven, The Netherlands initiates the EXCeL Registry. This study will assess the safety and effectiveness of the GORE® EXCLUDER® Conformable AAA Endoprosthesis (CEXC Device) in patients who meet the IFU anatomic criteria (≥15mm proximal neck length and ≤90˚ proximal neck angulation; and ≥10mm proximal neck length and ≤60˚ proximal neck angulation) and in patients with challenging anatomic presentation that may present outside the IFU anatomic criteria. Successful outcomes from this study will provide evidence to support the CEXC Device as an option for expanding EVAR to a broader patient population with more challenging anatomic presentations.
Eligible subjects in this study will have either a known abdominal aortic aneurysm (AAA) or because they do not have an AAA (control group). The purpose of this research study is to further study, through FEA, changes that occur in the mechanical properties of the aortic wall. The investigator will compare two radiotracers, 18F-FDG and 11C-PBR28 to determine if one provides more useful and reliable information about inflammation. 18F-FDG and 11C-PBR28 are radioactive drugs that will be used for imaging during the PET-CT scan. The investigator will also compare the results describing the mechanical properties of the AAA wall to the degree of inflammation in that wall as determined by PET-CT imaging to define new and better predictors of AAA growth and/or rupture.
This study will evaluate a randomized comparison of direct versus snare techniques for cannulation of contralateral gate during an endovascular aneurysm repair (EVAR) procedure. This information will be used to determine if primary snaring is superior to retrograde cannulation in decreasing procedural time and radiation exposure.
The study aims at screening Israeli Arab men, smokers or past smokers, for abdominal aortic aneurysms (AAA). The screening is to be performed at the family doctors clinics in the rural arab erea of the north of Israel. Goals: The investigators aim at revealing the actual prevalence of AAA in the Israeli Arab smoking men population. By revealing this prevalence we believe the need for a nation-wide screening program for AAA will turn available for assessment. In addition, the goal of improving the accessibility of health services for the Israeli Arab population is a key issue in the design of the research. 2000 patients are to be enrolled in the study over a period of 2 years. Each of the patients will be examined once for a duplex ultra-sound and will be classified into one of 4 sub-groups according to the maximal aortic diameter found.
Abdominal Aortic Aneurysm (AAA) is a potentially life threatening condition. If the aneurysm ruptures, the mortality can be as high as 80%. Endovascular aneurysms repair (EVAR) is a minimal invasive procedure and has been widely used on treating AAA. Advanced endovascular techniques are used to treat patients with more complex pathology by using custom-made devices and additional stents. In order to accomplish the technical success on advanced EVAR, with the current imaging equipment and technique for EVAR procedures (i.e. live x-ray fluoroscopy and 2-D digital subtraction angiography (DSA)), multiple angiograms on the target arteries (arteriograms) are required. Subsequently patients are exposed to higher dose of contrast and radiation, compared to conventional EVAR. This study is to assess the feasibility of proper visceral and renal arteries catheterization using a 3D model obtained from pre-procedural computed tomographic angiography (CTA), fused with real-time fluoroscopy, without contrast injection or angiographic run-offs thus minimizing the contrast use and patient radiation exposure while achieving procedure success during Advanced EVAR.
The purpose of this clinical trial is to assess and evaluate the safety and efficacy of the Treovance Stent-Graft with Navitel Delivery System in subjects with Abdominal Aortic Aneurysms (AAA).