Active clinical trials for "Vascular Diseases"

In this investigation, the investigators will attempt to demonstrate that patients who have received nerve blocks (regional anesthesia) prior to open surgical vascular bypass of the lower extremities (infrainguinal bypass grafting) will have improved surgical outcomes namely a reduction in the rates of death, wound infection, graft thrombosis, graft revision, and amputation. As well, the investigators anticipate that patients who have undergone regional anesthesia for infrainguinal bypass grafting will have improved secondary outcomes with respect to a decreased length of stay, narcotic consumption, nausea and vomiting, post-operative cognitive dysfunction, major cardiac events, post-operative pain, and hyperglycemic episodes.

Hypothesis: CAV is associated with fibrotic changes on cardiac MRI, altered levels of pathogenetically-related biomarkers, and specific RNA expression changes in the blood

Post transplant vasculopathy is a major negative outcome in heart transplantation. Current methods of detection are highly invasive and pose a risk to transplant recipients. Noninvasive markers of endothelial function can be used to detect transplant vasculopathy. Endothelial biomarkers such as: endothelial nitric oxide synthase, vascular cellular adhesion molecules, intracellular adhesion molecules, endothelin-1, thromboplastin, circulating endothelial cells, uric acid, and C-reactive play a role in the pathophysiologic mechanism of vasculopathy. Therefore, the investigators would like to assess the association between various endothelial biomarkers and the presence or absence of transplant vasculopathy.

Abnormal peripheral endothelial function and alterations in circulating biomarkers that are associated with endothelial activation and inflammation correlate with angiographic evidence of cardiac allograft vasculopathy, defined as greater than 25% stenosis in a major coronary artery.

Although microparticles have been well-documented as mediators of inflammation and coagulation in various cardio-vascular disease events, it is currently not known how Percutaneous Transluminal Angioplasty (PTA) for peripheral arterial disease influences microparticle numbers, phenotype and distribution pre- and post interventionally and how they are related to or affect the incidence of early re-stenosis - or if indeed they may be used to predict patients at risk of early re-stenosis.

Post market clinical follow-up study about the Sinus-venous stent. Patients with venous iliofemoral occlusive disease are treated with the Sinus-venous stent. This observational study will provide 1 year data about safety and efficacy.

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.

The EXAMINATION trial was a superiority trial that compared everolimus-eluting stents (EES) versus bare-metal stents (BMS) in an all-comer ST-segment elevation myocardial infarction (STEMI) population. The patient-oriented endpoint was not superior at 1-year, but it was at 5-year. However, very-long term follow-up is unknown. The study had an independent Clinical event Committee (CEC). All events were adjudicated by an independent clinical committee, according to the Academic Research Consortium 1.

According to the literature available pulmonary hypertension is present in 12 to 23% of patients suffering from Sjögren Syndrome. However epidemiological data are based on non-invasive measurements using echocardiography. Furthermore, no data are available regarding exercise hemodynamics in those patients. This study investigates pulmonary hemodynamics at rest and during exercise in patients suffering from primary and secondary Sjögren Syndrome. Patients under suspicion for pulmonary hypertension (PH) will be offered further investigations including right heart catheterization.

The primary objective of this study is to show that cardiovascular risk factors associated with the chronic elevation of arterial resistance may be associated with "false" profiles of intracranial hypertension during transcranial doppler ultrasound of the middle cerebral arteries in intensive care unit patients. A "false" profile of intracranial hypertension is defined by a high pulsatility index without any intracranial pathology.