View clinical trials related to Aortic Aneurysm.
Filter by: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.
The primary objectives of this study are to determine whether the Ovation Abdominal Stent Graft System is a safe and effective method of treating abdominal aortic aneurysms (AAA's) in those patients considered to be suitable candidates for open surgical repair.
A Clinical Study to Evaluate the Safety and Performance of the TriVascular Ovation Abdominal Stent Graft System
A prospective, non-randomized multi-center clinical evaluation of the performance of the TriVascular Thoracic Stent Graft System when used in the treatment of subjects with thoracic aortic aneurysms (TAA).
To determine the safety and effectiveness of PEVAR.
Aneurysm formation is associated with a chronic inflammatory response, depletion of smooth muscle cell population and excessive matrix metalloproteinases (MMPs) production. 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) are lipid lowering agents with pleiotropic effects including anti-inflammatory activity. Elective open AAA repair patients will be randomised to receive either statin (Atorvastatin 80 mg) or placebo (dummy tablet) for 4 weeks pre-operatively. Tissue samples will be obtained from patient's aneurysm to assess MMP's and their inhibitors TIMP's. It is hypothesized that patients receiving statin will have reduced MMP's.
An aneurysm is a permanent and localized dilatation of an artery usually more than 50% of its normal diameter. Abdominal Aortic Aneurysms (AAA) is an aneurysm of the main artery of abdomen and affects 5% of men aged 65-74 years. Rupture of an aneurysm is the 10th leading cause of death in white men over 65 years of age in industrial countries. Treatment of asymptomatic AAA is considered when the diameter of an AAA reaches 5.5 cm. There are two treatment options available: conventional open surgical repair or endovascular repair, which is a less invasive mode of treatment. After the operation heart and lung complications are significant in patients undergoing major abdominal surgery. The commonest causes of death are due to heart problems. There are various studies which have shown benefits of pre operative exercise training in patients undergoing orthopaedic, lung and heart bypass surgery. Currently, there is no data available with regards to the effect of pre-operative (before operation) supervised exercise in patients undergoing surgery for an AAA. The main aim of this study will be to determine whether a pre-operative supervised exercise programme improves post-operative (after operation) outcome, compared to standard treatment. Patients will be entered in the study once a decision to repair their AAA has been made by the consultant. They will undergo pre-operative assessment and will be divided randomly into two groups. One group will have exercise training for 4-6 weeks before surgery and the other will not. After the operation they will be followed during the post-operative period to determine the presence or absence of complications. It is anticipated that complications will be less in the group which has undertaken exercise training before operation.
The purpose of this study is to support the suspected expectation that Contrast enhanced Ultrasound (CUS) detects all endoleaks that have been detected by Computed Tomography (CT), and also find a number of leaks missed by CT. The investigators' primary goal is to detect no difference between CT and CUS and provide evidence that CUS is a possible alternative to CT.