View clinical trials related to Aortic Aneurysm.
Filter by:Endovascular therapy of Aortic Aneurysms depends on good imaging facilities. A relatively new kind of x-ray equipment makes it possible to create computer tomography (CT) - like slice images in the operating room. The purpose of this study is to verify the clinical usefulness of DynaCT in a preoperative setting. To do so we compare aortic measurements in DynaCT to the same measurements in ordinary CT-images which are regarded the gold standard.
The primary endpoint is successful secondary endovascular treatment with the Talent Converter stent graft of subjects having received prior endovascular repair of infrarenal abdominal aortic or aortoiliac aneurysms using the Talent or AneuRx Bifurcated Stent Grafts, in which there is inadequate proximal fixation, seal, overlapping of modular components or unattainable contralateral limb cannulation. Treatment success is defined as a composite of successful vessel access, successful insertion of the delivery system, successful deployment of the Converter stent graft at the intended treatment site and absence of Type I endoleak at the 1 month follow-up visit.
Abdominal aortic aneurysms (AAA) are balloon-like swellings of the body's main blood vessel (aorta) as it courses through the abdomen. As a result of the National Aneurysm Screening programme many more of these will be detected. Small AAAs grow slowly and remain a benign condition until the diameter exceeds 2-3 times the diameter of the normal aorta (about 5.5cm in size), when operative repair of the aneurysm is recommended avoiding the potentially fatal event of bursting and bleeding (aneurysm rupture). It is therefore important to identify a strategy to prevent aneurysm growth. There is a suggestion that the use of a specific drug class, angiotensin converting enzyme (ACE) inhibitors, may reduce the risk of rupture of the larger aneurysms. This trial will assess whether an ACE inhibitor (perindopril) has aneurysm-related benefits, in patients with small AAAs at screening centres in the London area. The effects of perindopril versus a placebo(dummy) on AAA growth rates will be compared. In addition by comparing the effects of perindopril with the effects of equivalent blood pressure lowering with another non-ACE inhibitor class of drug (amlodipine) on aneurysm growth rate, we can see whether any benefits of perindopril are simply the result of lowering blood pressure. 225 Patients will be assigned to one of these 3 treatments by chance (randomisation).In addition to analysis of the effect of perindopril and blood pressure lowering,the effect of the treatments on quality of life will be assessed. Patients will return at 3-monthly intervals for an ultrasound scan and blood pressure measurements, with questionnaires regarding quality of life at the start and end of the 2-year research period. An ultrasound scan is a painless test that uses sound waves to create images of organs and structures inside your body.
The purpose of this study is to compare the radiation exposure of a variety of chest CT examinations performed on the current state of the art CT scanners (64 slice, dual source CT scanner) with the radiation exposure for identical chest CT examinations performed on the Siemens Flash CT scanner (high pitch dual source spiral technique).
To prospectively evaluate the safety and efficacy of the LUPIAE hybrid technique for the treatment of - thoracic or thoraco-abdominal aortic aneurysms - thoracic aortic type A dissections 2. to compare the safety and efficacy of the LUPIAE hybrid technique with historical groups (literature review, other hybrid techniques, LUPIAE retrospective patients)
Diabetes Mellitus (DM) is frequently appearing in patients with cardiovascular disease and these patients, as a consequence herby, has a lesser prognosis. DM is often related to increased arterial stiffness and hypertension. The investigators thesis is that DM and pre-diabetes is prevalent in patients undergoing cardiovascular surgery and to some extend is under-diagnosed. At the same time the investigators imagine that DM is closely related to the degree of arterial stiffness, and that these parameters are closely related to a new biochemical marker, fibulin-1. The investigators aim to describe the prevalence of type 2 DM and dysmetabolism in patients admitted to the hospital to undergo cardiovascular surgery and besides that to investigate if there is a connection between the degree of the dysmetabolism and arterial disease, by studying arterial stiffness and by measuring a new biochemical marker, fibulin-1, which the investigators newly have identified. The results of this project will give us a measure for the quantity of unknown DM in patients undergoing cardiovascular surgery and furthermore tell us more in terms of the connections between a newly identified plasma arterial marker, arterial stiffness and diabetes.
This study is a multi-center prospective, open label, non-randomized investigation of INCRAFT™ in subjects with abdominal aortic aneurysms. The study will enroll up to 60 subjects in up to 7 sites in Germany and Italy.
The development of the abdominal aorta aneurysm is multifactorial. Through use of magnetic resonance imaging without contrast, this study will look closely at flow, the stresses hereby induced, as well as signs of inflammation in the vessel wall.
A Clinical Study to Evaluate the Safety and Performance of the TriVascular Ovation Abdominal Stent Graft System
To compare CO values obtained by the lithium indicator dilution method and pulse power analysis before, during and after anaesthesia and surgery for the elective repair of abdominal aortic aneurysms. This will enable us to determine how often and when calibration of the pulse power analysis derived CO is required.