View clinical trials related to Thrombosis.
Filter by:This is a Phase III, randomized, placebo controlled, blinded, parallel two arm, multicentre trial that will compare rivaroxaban 10mg daily with placebo in patients with symptomatic leg Superficial Vein Thrombosis (> or = 5cm) that otherwise would not initially be treated with anticoagulant therapy.
Numerous studies have demonstrated excellent diagnostic accuracy of Compression Ultrasonography (CUS) performed by hospitals doctors, skilled and unskilled in Radiology. Recently, it was demonstrated that adequately ultrasonography-trained General Practitioners (GP) can perform reliable ultrasound to increase the speed and improve the quality of clinical management of various clinical conditions. To date, in the medical literature there are no studies that demonstrate the diagnostic accuracy of GP in performing CUS for the diagnosis of Deep Vein Thrombosis (DVT). Therefore, we plan to perform a prospective, multicenter, cohort study in which a large number of consecutive outpatients with symptoms or signs of DVT are subject to the CUS by the GP with the aim of evaluating the precision and the diagnostic accuracy compared to specialists in vascular ultrasound, which in this case will be the standard of reference.
All vascular access guidelines recommend monitoring and surveillance protocols to prevent vascular access complications in hemodialysis units. However, in the case of second generation screening techniques which determine access blood flow measurement (QA), there is a huge controversy about it´s efficiency. Although multiple observational studies find a decrease in the thrombosis rate and an increased primary assisted patency survival related to the use of these techniques, a recently published meta-analysis find contradictory results in the randomized controlled trials, affirming that the measurement of QA is useless in grafts and questionable in native arteriovenous fistulae (AVF). We have designed a multicenter, prospective, open label, controlled, randomized trial, to prove the usefulness of the QA measurement using two complementary second generation techniques, Doppler ultrasound and Transonic dilution method, compared to the classical monitoring and surveillance methods. The primary endpoint will be a reduction in the thrombosis rate with an increased assisted primary patency survival, and a cost effectiveness economic analysis. As secondary endpoints we will analyze the impact over non-assisted primary patency survival and secondary patency survival.
Background: -How people respond to drugs depends in part on their genes. For some drugs, doctors can use an individuals genetic background to help in dosing the drug. Researchers want to know how doctors incorporate personalized or genomic medicine into clinical practice. Objective: -To study how physicians make personalized treatment decisions Eligibility: -Healthy adult primary care physicians who are internal (or family) medicine residents. Design: - Participants will complete a screening form. - Participants will put on a headset, called a head-mounted display, showing a virtual reality environment. - The environment will contain an exam room and the virtual patient. - After interacting with the virtual patient, participants will complete a series of survey measures. - Participation will last for about 60 minutes. The virtual patient interaction and follow-up questions will be audio taped.
The Cothera VPulse(tm) mechanical compression device (MCD) combines rapid intermittent sequential compression with cold therapy and is designed for single patient use in the home. Additionally, it can track patient compliance. This study will examine if there is a difference in deep vein thrombosis (DVT) occurrence over 3 weeks after tourniquet-less total knee arthroplasty (TKA) and multimodal prophylaxis with or without extended MCD use in a cooling device/MCD system.
The purpose of this study is to determine whether the bioavailability of apixaban crushed tablets suspended in water or mixed with applesauce is similar to the bioavailability of apixaban whole tablets administered orally.
Cancer patients are at increased risk of deep venous thrombosis and pulmonary embolism, collectively termed venous thromboembolism (VTE). Risk assessment scores for VTE in cancer patients have been previously developed by the groups of Khorana and Vienna CATS. However, routine thromboprophylaxis for ambulatory cancer patients based on these scores is currently not recommended. In the investigators prospective, observational cohort study, the investigators aim to identify cancer patients at high risk for VTE based on clinical characteristics, coagulation biomarkers and the coagulant activity of tissue factor bearing microparticles.
The primary objective is to demonstrate the non-inferiority of edoxaban (preceded by a short course of LMWH) compared with dalteparin for the prevention of the combined outcome of recurrent venous thromboembolism (VTE) or major bleeding in subjects with VTE associated with cancer during a 12-month study period. If non-inferiority is established, LMWH/edoxaban will be compared with dalteparin for superiority.
Patients with coronary artery disease (CAD) and atrial fibrillation (AF) are at increased risk of stroke and heart attack. Such events are usually caused by increased stickiness of the blood causing a blood clot to block the artery (thrombus) in the heart or the brain. The aim of this study is to assess the stickiness of the blood (global thrombotic status) in patients with CAD and AF at baseline and after clinical stabilisation to see how disease state and clinical treatments affect the stickiness of the blood (thrombotic status). This will be a single centre study. Patients diagnosed with CAD or AF will have a blood sample taken at baseline and after clinical stabilisation. Blood stickiness will be tested with the Global Thrombosis Test. The results will be evaluated to assess the effect of disease process and clinical state on blood stickiness to gain further understanding of this condition and form the basis for future studies aimed at identifying patients who are at high risk of future cardiovascular events, based on increased blood stickiness.
Several studies have confirmed that patients with cirrhosis possess an imbalance in procoagulant versus anticoagulant activity due to increased factor VIII and decreased protein C. Moreover, in the last two decades there has been an increased recognition that not only bleeding but also thrombosis complicates the clinical course of cirrhosis. The prevalence and pathogenesis of portal vein thrombosis (PVT) in patients with cirrhosis without hepatocellular carcinoma are not clearly defined. The Aim of this study is to assess the prevalence of portal vein thrombosis in patients with cirrhosis without hepatocellular carcinoma, and to prospectively assess the risk factors, outcome, and prognosis in these patients. The investigators plan to enroll two hundred patients with liver cirrhosis. The patients are going to follow up for one year and evaluate at baseline and every 6 months by liver function tests, coagulation test, upper abdomen ultrasound. All relevant clinical events will be evaluated at every follow up.