Active clinical trials for "Aortic Aneurysm, Abdominal"

The purpose of this observational Post-Market Surveillance Registry is to gather post-market data on the performance of the CE marked Vascutek Anaconda™ Stent Graft System for the repair of Abdominal Aortic Aneurysms (AAA). The Study population consists of patients suitable for endovascular repair of AAA. Patients will be followed at 1, 3, 6, 12, 18, 24, 36, 48 and 60 months post-implantation.

A registry to collect additional prospective intra-operative and follow-up information on physician use of the CE-marked Zenith® Low Profile Abdominal Aortic Aneurysm (AAA) Endovascular Graft under routine clinical care.

Conflicting results have been reported concerning the association of pseudoexfoliation syndrome (PXF) and abdominal aortic aneurysms (AAA). Schumacher et al. reported an association between AAA and PXF, with no consideration of grade. However, a later study did not confirm the association between AAA and PXF. The present study aimed at comparing the relative prevalence of PXF in patients suffering from AAA and in age-matched hypertensive patients.

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.

X-ray computed tomography imaging (CT) is routinely used in follow-up after endovascular aneurysm repair (EVAR). Contrast-enhanced ultrasound (CEUS) has been shown to give accurate information about endoleak after EVAR. Benefits of CEUS over CT include less radiation exposure, avoidance of renal function deterioration due to repeated X-ray contrast agent application and decrease in the cost of EVAR follow-up. This study is designed to investigate if results from literature are reproducible in St Olavs Hospital in Trondheim (Norway), to gain experience with the technique and to introduce CEUS as an alternative for detection of endoleak in this hospital.

The aorta is the main blood vessel that comes out of the heart and distributes blood to the whole body. In some people, the aorta becomes swollen (aneurysm) and bursts, especially as it passes through the abdomen. These 'abdominal aortic aneurysms' often occur without symptoms and can burst or rupture without warning. This usually leads to death and represents the thirteenth commonest cause of death in the United Kingdom. In this study, we are looking at a new technique that can look at the aortic aneurysm using magnetic resonance imaging; a technique that does not require x-rays or radiation. We have recently shown that, using magnetic resonance combined with a new imaging agent USPIO, we can detect 'hotspots' of activity in these aneurysms that seem to predict which aneurysms grow rapidly, and are therefore potentially at risk of rupture. We here propose to conduct a study in Edinburgh that will invite all patients who are under surveillance because of an aneurysm. We will image these patients using this novel technique and see if we can identify which patients burst their aneurysm, have an aneurysm that grows so large it needs to have surgery, or die. This will be important to establish as it will potentially lead to a new way of managing people that could ultimately save lives. This is particularly timely as national screening and surveillance programmes are currently being launched.

This study tests the use of a decision aid for Veterans who are facing a decision about surgery for their Abdominal Aortic Aneurysm (AAA). The local site investigators (LSI) will enroll Veterans with AAA who are candidates for endovascular or open surgical repair. There are 22-24 VA Medical Centers participating in the trial. 12 sites will be randomly assigned to the intervention group, and 12 sites will be randomly assigned to the control group. Twelve Veterans will be enrolled at each site. At sites assigned to the intervention arm, Veterans will receive a decision aid with information about the two types of surgery for AAA repair, open and endovascular, and complete a survey about their preferences. Veterans at control sites will complete the same survey, but will not receive the decision aid. After their surgery, Veterans will take another survey asking about their satisfaction. The LSI will compare the results of the survey between Veterans' in the intervention and control groups to determine the effect of the decision aid on agreement between preference and repair type.

INITIATION is a postmarket clinical follow-up study in China. The purpose of the study is to continue to evaluate the safety and effectiveness/performance of Incraft in subjects with abdominal aortic aneurysms requiring endovascular repair in routine clinical practice. Approximately 120 subjects will be enrolled and followed through 1-years postprocedure. Up to 20 sites in China may participate.

The aim of the present study was to investigate outcomes of a propensity matched series of patients treated with F-BEVAR and open surgery repair for complex abdominal aortic aneurysm in two aortic high-volume centres.

Fluoroscopy is traditionally used for guidance of endovascular aortic repair (EVAR). In order to minimize exposure to radiation and nephrotoxic contrast medium, it is possible to generate a navigation road map by registering the intraoperative images with preoperative computed tomography angiograph (CTA). In modern hybrid operating rooms, several commercial solutions for this exists today (e.g. Siemens Syngo iPilot, Phillips Vesselnavigator). In order to register (fuse) the preoperative and intraoperative imaging to each other, a registration algorithm has to be applied. Sufficient accuracy of this algorithm is crucial, for if it fails the road map cannot be used for intraoperative navigation. The purpose of this study is therefore to evaluate two different 3D registration algorithms with regard to registration accuracy.