View clinical trials related to Thromboembolism.
Filter by:The purpose of this study is to evaluate the safety and efficacy of a single administration of TB-402 for the prevention of VTE in patients undergoing knee replacement surgery.
The purpose of this study is to determine if the use of adjunctive Pharmacomechanical Catheter Directed Thrombolysis, which includes the intrathrombus administration of rt-PA--Activase (Alteplase),can prevent the post-thrombotic syndrome(PTS)in patients with symptomatic proximal deep vein thrombosis(DVT)as compared with optimal standard DVT therapy alone.
The main objective of the study is to develop or validate a clinical prediction rule for major bleeding in patients on oral anticoagulant therapy who have been safely anticoagulated without bleeding or venous thromboembolism (VTE) recurrence for at least 3 months since diagnosis and are being considered for long-term oral anticoagulant therapy.
Blood thinners, such as warfarin, prevent blood clots from forming, thereby reducing the risk of a stroke or heart attack. When people undergo surgery or certain procedures, they must stop using warfarin to prevent too much bleeding during and after the surgery or procedure. Some doctors prescribe a different blood thinner, one that works more quickly and wears off more quickly, to bridge the gap between starting and stopping warfarin. However, this short-term treatment is expensive, may increase the risk of bleeding, and has not been proven effective. This study will determine whether a bridging blood thinner called dalteparin is helpful or harmful for people with atrial fibrillation who stop taking warfarin in preparation for surgery or a procedure.
Recombinant tissue plasminogen activator (rt-PA) is currently the most commonly used thrombolytic drug in patients with pulmonary thromboembolism (PTE). Optimal dosing with maximal benefits and minimal risks is of great importance. Considering the lower body weight in general Chinese population, we compared the efficacy and safety of lower dose rt-PA 50mg/2h regimen with the FDA-approved rt-PA 100mg/2h regimen in selected PTE patients.
The purpose of this study is to ascertain whether subcutaneous ports are an effective and reliable way to administer the low molecular weight heparin (LMWH) enoxaparin to patients for the prevention or treatment of venous thromboembolism.
Blood clots in leg veins (deep vein thrombosis) or lung arteries (pulmonary embolism) that happen for no reason (i.e. unexplained) are both called "unprovoked venous thromboembolism" (VTE). These unexplained blood clots can be the first symptom of cancer. Up to 10% of patients with unexplained blood clots will be diagnosed with cancer within one year of their blood clot diagnosis. These cancers can be found anywhere in the body although the relationship appears stronger with the pancreas, ovary and liver. Cancer testing in patients with blood clots is controversial. There is presently a wide variety of expert opinions and practices. Previous studies showed that a limited cancer screen including a medical history, physical examination, basic blood work and chest X-ray, will find about 90% of cancers. More recent and better designed studies showed that the limited cancer screen misses many cancers and needs to be improved. More extensive cancer testing may find more cancers but is potentially uncomfortable for patients, costs a lot of money and involves a lot of people. The "comprehensive computed tomography" is less uncomfortable, inexpensive, radiological test made to find many cancers at once. Thus, the scientific question to be asked is: Does a "comprehensive computed tomography" miss less cancers than a limited cancer screen in patients with blood clots? The main goal of this study is to find out if a "comprehensive computed tomography" misses less cancers than a limited cancer screen in patients with unexplained blood clots. The second goal of the study is 1) to find out if a "comprehensive computed tomography" finds more "curable" cancers than the limited cancer screen; 2) to find out if the patients diagnosed with cancer are still alive and cancer-free after one year (i.e. the patients with curable cancer were treated and are doing well); 3) to prove that a negative "comprehensive computed tomography" means that the patient will not have cancer and; 4) to find out if a "comprehensive computed tomography" is well tolerated and safe for patients.
In patients undergoing total knee arthroplasty, thromboembolism is a common occurrence, especially following tourniquet deflation. The resulting cardiopulmonary emboli can potentially lead to hypoxemia, hypotension, hemodynamic collapse and post operative cognitive dysfunction due to emboli. The standard surgical technique involves placing an intramedullary rod in the femur to determine the angle and degree of resection from the end of the femur. A new surgical technique utilizes computer navigation system to perform the desired cuts in the appropriate position. The investigators hypothesize that the avoidance of intramedullary instrumentation in computer assisted total knee replacement will result in fewer thromboembolic events compared with the standard technique using manual instrumentation in the femur. The present study will test this hypothesis by quantifying the extent of thromboembolism during both surgical techniques.
The venous thromboembolism is one of the first causes of maternal mortality. Until 2003, only a few recommendations were available on the optimal use of antithrombotic therapy as a preventive measure against thromboembolism in pregnant women. In this study, we propose : 1. To gather the experts who took part in the French consensus conference and the local experts to create a score in accordance with the national and international consensus and to give some precise therapeutic strategies. 2. To evaluate the discriminant, feasible and useful character of this new score by a prospective multicentric study including 2000 pregnant women with a risk of thromboembolism or placental vascular pathology who will benefit from therapeutic strategies defined by the new score.
This multicentre open-label randomized parallel-group trial aims to compare the association of intermittent pneumatic compression of the lower limbs + elastic stockings + anticoagulant prophylaxis to anticoagulant prophylaxis alone on the incidence of venous thromboembolism systematically evaluated at day 6, in patients hospitalized in intensive care units and without high bleeding risk.