Active clinical trials for "Aneurysm"

Cardiovascular disease (CVD) is an important public health problem that affects millions of people worldwide. Associations between risk factors, such as smoking, dyslipidaemia or hypertension, and prevalent CVD are well documented. However, few studies have investigated associations with onset of disease. The initial manifestation of CVD, for example an episode of unstable angina, is important because it influences the prognosis, the quality of life and the management of disease. Furthermore, the extent to which social deprivation, alcohol consumption or atrial fibrillation affects presentation of CVD is poorly understood and deserves further consideration. Most previous studies have considered CVD as a single entity. However, differences in aetiology between coronary phenotypes suggest that risk factors may not be shared across specific coronary phenotypes and their relative importance is likely to differ for each phenotype. Gaining knowledge of these differences could provide insights into the pathophysiology of specific forms of CVD and could eventually lead to modification of recommendations for patient management and disease prevention. We propose to use the linkage of the national registry of coronary events to general practice records in the Clinical Practice Research Database (CPRD), to investigate whether demographic, behavioral, and clinico-metabolic risk factors differentially influence the onset of specific types of CVD.

The purpose of this study is to determine the incidence and impact of brain lesions in MRI after coiling and clipping of unruptured intracranial aneurysms on clinical and neurological outcome of patients.

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.

Standard of care dictates that eligible patients should receive an abdominal aortic aneurysm (AAA) screening ultrasound. At present, different military primary care physicians utilize different methods at their discretion to ensure their patients get screened-telephone contact; mail-out reminders; referring patients for ultrasound directly from an office visit; as well as other methods-which we will refer to as "usual care". The purpose of this study is to improve screening rates for AAA and determine what notification methods are best at improving screening rates.

The aim of this study is to prospectively compare the perioperative mortality severe morbidity and the costs of endovascular versus conventional surgical repair of pararenal, supra-renal and type 4 THORACO-abdominal aortic aneurysms. The primary goal of the study is to demonstrate a significant drop in 30-day mortality and life threatening morbidity in the endovascular arm of the study. Our hypothesis, derived from the literature, that the average 30-days mortality is 3% after endovascular repair and 10% after open surgery justifies the design of a prospective study between endovascular therapy (250 patients (amendment) treated in 8 University hospitals with significant experience of the technique) and open repair (660 similar patients analyzed form the national database of the MOH).

Renal colic is a common (1300 visits per year at our institution) and painful condition caused by stones in the kidney and ureter, and can be mimicked by life threatening conditions such as a ruptured abdominal aortic aneurysm (AAA). This can create clinical uncertainty. Emergency department targeted ultrasound (EDTU) is performed by an emergency physician at the patient's bedside, and has been shown to be accurate, safe, and efficient. We have shown that EDTU can accurately identify hydronephrosis, which is a predictor of complications of kidney stones. A normal formal ultrasound (US) predicts an uncomplicated clinical course. We will assess the accuracy of EDTU for the diagnosis of hydronephrosis, and when normal, whether patients can be safely discharged.

The purpose of this trial is to study the use of nesiritide in thoracic aneurysm repair to prevent acute renal failure. The study hypothesis: Nesiritide, given prophylactically prior to surgery may prevent acute renal failure requiring dialysis and/or decrease mortality.

This is a study looking at a new way to evaluate vascular problems or tumors in brain surgery patients using a standard & approved intravenous dye and augmented reality.

Endovascular techniques for the treatment of intracranial aneurysms are growing.

Cardiovascular Response to Maternal Hyperoxygenation in Fetal Congenital Heart Disease