Active clinical trials for "Aneurysm"

This is a multicentre, prospective, observational post-market registry (follow-up 1 month, 1 year, 2 years, 3 years, 4 years and 5 years) to monitor the post-market clinical safety and effectiveness of the Vascutek AnacondaTM Custom Fenestrated Stent Graft in patients with a short infrarenal neck of <15mm or juxta-renal abdominal aortic aneurysms who, in the opinion of the treating physician, are anatomically suitable for the AnacondaTM Custom Fenestrated Stent Graft and for whom a customised medical device is required.

To determine the safety and efficacy of the BMFM® kit in the use for the endovascular treatment of aortic aneurysms involving iliac arteries. The BMFM® kit is an adaptation of the aortic MFM® to the aortoiliac bifurcation morphology. It should be noted that the aortic MFM® has CE mark approval for the aortic aneurysm treatment.

"Study on the effectiveness and safety of the coil system for the treatment of intracranial aneurysms embolization" was sponsored by Zhuhai Tongqiao Medical Technology Co., Ltd. The trial design is: prospective, multi-center, randomized, open, parallel positive control, and non-inferiority test. Purpose: To compare the data obtained by using the coil system produced by Zhuhai Tongqiao Medical Technology Co., Ltd. and the Axium Detachable Coil produced by Medtronic for the embolization of intracranial aneurysms to evaluate the effectiveness and safety of coil system for intracranial aneurysms embolization.

Surgery for abdominal aortic pathology usually occurs in the setting of advanced cardiovascular disease. The repair can be relatively simple or complex with multiple steps including open repair, placing a stent with a catheter, and placing a complicated stent that allows for crossing vessels without occluding them. All these repairs require imaging follow up. The most commonly accepted tool for follow up is Computed Tomography (CT) scan which involves ionizing radiation and potentially nephrotoxic iodinated contrast. Recommendations for the time interval for follow up, as well the radiology imaging technique vary. Routine ultrasound with Doppler, CT, and MRI has all been employed utilizing various imaging protocols. Clinicians use non-contrast CT, arterial phase and delayed phase CT, ultrasound, and various combinations based on personal experience and patient pathology. Concerns over cost, potential nephrotoxicity of contrast agents and repeated radiation exposure has led to investigation of alternate imaging modalities such as contrast-enhanced ultrasound (CEUS). CEUS represents an improvement of ultrasound imaging but comparisons against CT report widely varying results, likely due to technical factors of CEUS and limitations of single-phase CTA. Contrast ultrasound has been used effectively to diagnose leaks in the aorta post repair and is without the radiation and potential nephrotoxicity of iodinated contrast. Of yet, no large prospective studies have compared CT and contrast US and no studies have looked at the more complicated staged or fenestrated repairs. This study proposes to perform a contrast ultrasound at the same time as a contrast CT using a standardized protocol. This protocol would include a non-contrast CT, angiographic CT, and a CT in a delayed phase in all patients as standard of care. We will compare the results of a contrast US with the various data derived from a three phase CT.

A Randomized Clinical Trial with security and dose testing of Sildenafil Citrate in patients with subarachnoid hemorrhage due to a rupture of a cerebral aneurism for prevention of cerebral vasospasm. The cerebral vasospasm is a decrease in blood flow that occurs when the intracranial vessels lose their capability of self-control of dilations and contractions. Patients with subarachnoid hemorrhage without neurological deficits who underwent endovascular or surgical correction of the aneurysm can participate in this trial. They will be randomized to a daily doses of 75 mg of Sildenafil, 150 mg of Sildenafil or Placebo from the third to the 14th day post bleeding. Today there is no proven clinical treatment for prevention of cerebral vasospasm.

Demonstrate the safety and performance of the Aortic Stapler when used to attach a synthetic graft to an aorta in AAA and Leriche Syndrome patients

This study evaluates the effectiveness of intravitreal Aflibercept (IVA) injection therapy, combined with peripheral laser photocoagulation, in the treatment of macular edema caused by Leber's miliary aneurysm. We believe that our study makes a significant contribution to the literature because to our knowledge, it is the first to report cases, in which IVA injection therapy was used to treat this condition.

Does Aspirin reduce inflammation in the walls of unruptured brain aneurysms? Brain aneurysms are balloon-like outpouchings of a blood vessel resulting from a weakness in the vessel wall. They generally cause no symptoms, but can burst and cause a bleed in the brain, resulting in death or disability. Aneurysms occur in 1 in 30 people, but rarely burst, with 1 in 10,000 people having a brain bleed. Ideally, aneurysms would be treated before they burst to prevent bleeding in the brain. The two ways of treating aneurysms currently are both risky and invasive, and no medications have been shown to reduce the risk of aneurysms bursting. Aspirin is one of the most common medications, used worldwide to treat pain, fever and inflammation, and for the prevention of strokes and heart attacks. Its anti-inflammatory properties may be beneficial for patients with aneurysms. We know that the walls of burst aneurysms and aneurysms that are about to burst, are more inflamed than those that do not burst. Therefore, a drug that reduces inflammation may reduce the risk of an aneurysm bursting. We have designed this study to test whether there is a measurable reduction in inflammation in walls of brain aneurysms. In this study, participants known to have an aneurysm that is not planned for treatment and has not yet burst, take aspirin daily for three months, and have an MRI scan before and after to look for a reduction in inflammation. If this study is successful it would be the first step towards developing the first medication to help treat patients with aneurysms, representing a huge advance for the 2.1 million people in the UK with this condition.

A prospective, multi-centre, single-arm clinical trial to evaluate the safety and efficacy of Iliac Bifurcation Stent Graft System.

To describe the safety, possible complications and technical success of different technical methods and different embolic materials in the endovascular management of visceral artery aneurysms.