View clinical trials related to Aneurysm.
Filter by:The primary aim of the study is to determine if the evolutivity of global and segmentary captation of FDG-F18, which can be measured in the wall of abdominal aorta aneurysm, is predictive of the 9 month evolution of diameter and volume of the aneurysm, measured globally and segmentary in angioscan.
Single arm study to evaluate the outcomes of treatment with the Barrel VRD device as an adjunctive treatment to coiling for wide neck, intracranial, bifurcating/branching aneurysms in the middle cerebral and basilar arteries.
Specific cardiovascular diseases, such as stroke and heart attack, have been shown to vary by ethnic group. However, less is known about differences between ethnic groups and a wider range of cardiovascular diseases. This study will examine differences between ethnic groups (White, Black, South Asian and Mixed/Other) and first lifetime presentation of twelve different cardiovascular diseases. This information may help to predict the onset of cardiovascular diseases and inform disease prevention strategies. The hypothesis is that different ethnic groups have differing associations with the range of cardiovascular diseases studied.
An association between arterial aneurysms and matrix metalloproteinases (MMPs) has been described previously. MMPs regulate extracellular structural proteins and tissue remodeling. Neutrophil Gelatinase-associated Lipocalin (NGAL) is involved in the regulation of MMP activity. The aim of this work was to study the relationship between the levels of MMPs and NGAL and arterial aneurysms. In a multicenter, open label, parallel groups, prospective study, patients with aneurysmal disease were divided into two groups: Group I (with ruptured aneurysm) and Group II (with non-ruptured aneurysm). Healthy volunteer patients were also enrolled and represented the control group (Group III). The investigators enrolled 307 patients (Group I: 107, Group II: 200) with arterial aneurysm: 49 popliteal, 31 common femoral, 2 superficial femoral, 29 common iliac artery, 3 common carotid and 193 abdominal aorta. Finally, 11 healthy volunteer patients (9 males and 2 females, age range 40-70 year-old, median 56) were enrolled in Group III. Elisa test and Western blot analysis revealed greater levels of immunoreactive MMP-9 and NGAL in all patients with ruptured aneurysms, both central and peripheral aneurysms, and in the aneurismal vessels. These results provide important advances in the understanding of the natural history of arterial aneurysms. MMPs and NGAL play a role in development of arterial aneurysms and they may represent molecular markers for the prevention of aneurysmal rupture
An abdominal aortic aneurysm occurs when the part of the aorta travelling down into the abdomen balloons out more than 50%. If caught early, treatments can be used to prevent rupture of the aneurysm. However, many of these aneurysms are asymptomatic and go undetected until they rupture, causing large amounts of blood to spill into the abdominal cavity and typically leads to death, if left untreated. The current mortality rate is between 50 and 90%. The resources required to treat patients with ruptured aortic aneurysms is quite substantial given that they need blood transfusions and can have prolonged hospital stays. Patients either undergo a more invasive operative repair, associated with greater blood products transfusions and complications, or if relatively stable, undergo a less invasive repair with tubes called stents. There is less morbidity associated with the latter, endovascular repair. To prevent blood loss in elective surgeries, drugs that promote blood clotting are often used. One drug, tranexamic acid , has been shown to reduce blood loss, reduce the number of blood transfusions required and improve patient outcomes in elective cardiac and orthopaedic surgeries, and more recently, in patients with traumatic hemorrhage. However, this drug has not been tested in this particular population. The purpose of this pilot project is to evaluate the effectiveness of tranexamic acid in reducing clinically significant bleeding in patients with ruptured aortic aneurysms in hospital sites across Saskatchewan using a single-group intervention design. The investigators will compare the data from patients treated with tranexamic acid to retrospective data from a control group that is matched on key variables. The investigators predict that tranexamic acid will result in reduced bleeding, reduced need for blood transfusions, less patients that require open surgery and improved patient outcomes. The results of this study will help determine if this treatment is effective at preventing the death of many people with ruptured abdominal aortic aneurysms.
The purpose of this clinical investigation is to evaluate the safety and effectiveness of the Barrel™ VRD when used to facilitate endovascular coiling of wide-neck bifurcating or branch intracranial aneurysms with any approved embolic coils.
Evaluation of surgical outcome of vitrectomy with subretinal injection of recombinant tissue-plasminogen activator for submacular hemorrhage associated with retinal arterial macroanuerysms.
Aortic dilatation syndromes are comprised by a group of different syndromes, of which Marfan syndrome is the best described. Many of the aorta dilatation associated syndromes are heritable connective tissue disorders but some patients do not have any other phenotypical symptoms than aorta dilatation. The genetic variation in thoracic aorta dilatation is still unknown. This study aims on genetic evaluation of patients with thoracic aorta dilatation. Furthermore the study will focus on a registry angel trying to evaluate prevalence, mortality, morbidity and socioeconomically status of Marfan syndrome patients. This part will rely on registry data obtained from unique Danish registries.
Endovascular repair of aortic aneurysm and endovascular treatment of arteriosclerosis obliterans of lower extremities are two kinds of common surgeries in the investigators' hospital. The effects of anesthetic agents on postoperative outcome, especially cognitive function, are not clear. In this study investigators propose to measure postoperative cognitive function and other outcome of patients who are undergoing these two kinds of surgeries, and try to identify whether there is an association between different kinds of anesthetics and postoperative outcome. Investigators will also observe whether changes in plasma levels of VEGF, TGF-1, TNF-α, IL-1β, and IL-6, are associated with postoperative delirium or cognitive change.
The Zenith® t-Branch™ Thoracoabdominal Endovascular Graft Study is a post-market observational study to evaluate the performance of the Zenith® t-Branch™ in the treatment of thoracoabdominal aortic aneurysms in routine care.