View clinical trials related to Thrombosis.
Filter by:This is a multicenter, randomized, double-blind, event-driven, superiority study for efficacy. Patients with confirmed symptomatic DVT (Deep Vein Thrombosis) or PE (Pulmonary embolism) who completed 6 or 12 months of treatment of anticoagulation are eligible for this trial
Saphenous vein graft disease remains an unresolved medical problem. Many vein grafts occlude in the first year after bypass surgery, leading to adverse cardiovascular outcomes, including recurrent angina, myocardial infarction, and the need for repeat coronary intervention. While aspirin is the standard antiplatelet treatment after CABG surgery, 10-20% of vein grafts continue to occlude despite contemporary secondary preventative therapy. Compared to aspirin and other antiplatelet therapies like clopidogrel, ticagrelor treatment leads to a more pronounced platelet inhibition, and may substantially improve graft patency following CABG compared to aspirin. No data has yet to be collected regarding the impact of ticagrelor on saphenous vein graft patency following CABG. In this context, the investigators seek to compare vein graft patency between patients randomized to receive aspirin therapy, the current standard of care, or ticagrelor treatment, starting in the early postoperative period, and continuing for 2 years after CABG.
Patients admitted to the intensive care unit are at high risk of developing clots in the veins of the lower extremities. The objective of this study is to examine whether the use of a device that provides intermittent compression to the legs in addition to the use of low-dose blood thinners, provides an additional protection when compared to the use of blood thinners alone. Patients who are admitted to the intensive care unit are receiving low-dose blood thinners to prevent clots are candidates for this study. Patients who are enrolled will continue to receive blood thinners but some will additionally receive the leg compression. The additional use of leg compression may provide protection from clots. The main side effect is possible skin abrasions but this is usually mild. The study is sponsored by King Abdullah International Medical Research Center(KAIMRC) and King Abdulaziz City for Science and Technology(KACST) and will be conducted in several hospitals in Saudi Arabia, Canada, Australia, Brazil and possibly other countries. The study started July 2014 and is to continue for 4 years.
This is a cohort study that will assess a new diagnostic management strategy for suspected Deep Vein Thrombosis in outpatients.The new diagnostic strategy is designed to reduce the use of ultrasound testing on the day of presentation, and reduce repeat ultrasound testing a week after an initial normal test.
The purpose of this study is to determine how frequently children undergoing elective neurosurgical procedures develop blood clots in the deep veins of the legs while hospitalized. The information gained from this study will help us determine when children children need to receive therapy to help prevent this type of blood clot from forming.
Based on limited published epidemiological data, up to an alarming 1 in 50 surgical inpatients die within 30 postoperative days. Based on our own data from the B-Unaware (NCT00281489) and BAG-RECALL (NCT00682825) clinical trials, 30-day postoperative mortality among high-risk surgical patients is comparable to this at Barnes-Jewish Hospital, and 1-year mortality among high-risk surgical patients may be as high as 10%. Short- and intermediate-term postoperative mortality is therefore a pressing public health concern. Similarly, postoperative major morbidity - including delirium, stroke, myocardial infarction, atrial fibrillation, blood clots, renal dysfunction, wound infection, pneumonia, respiratory failure, loss of functionality, and chronic pain - occurs commonly and affects a substantial proportion of surgical patients, critically ill patients and patients undergoing procedures for chronic pain. Many factors associate strongly and independently with postoperative mortality and major morbidity: patient age, functional status, comorbid medical conditions, and duration and invasiveness of surgery, among others. It is a strategic priority to identify pre- and intraoperative risk factors that are subject to modification.
Study objectives To investigate if early controlled mobilization of the ankle in week 3 to 8 affects the functional outcome and patient reported outcome after treatment of acute Achilles tendon rupture. Type of study Randomized, controlled trial (RCT). 130 patients will be included. Time schedule Begins January 2014. Study period is 4-5 years; recruitment is expected to span 2 years Setup At Copenhagen University Hospital Hvidovre the majority of patients with acute ATR are treated non-operatively. A cast is applied in the emergency room. After 2 weeks the bandage is changed to a removable orthosis and full weight bearing is allowed. Patients who choose to participate in the trial will - through randomisation - be placed in one of the two groups: 1. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3. 2. The control group: In line with the current treatment regimen the patients must keep the boot on at all times and they are not allowed to move the ankle. Treatment protocol for the two groups is similar concerning orthose, removal of wedges and weight-bearing. The only difference is that patients in the intervention group are instructed to do ankle exercise. Post-examinations in relation to the study Follow-up is done at 8 and 16 weeks plus 6 and 12 months. The study's primary endpoint is at the 12 month mark. Population Patients who are treated for acute Achilles tendon rupture at Copenhagen University Hospital Hvidovre. Patients who fulfil the inclusion criteria but do not wish to participate are treated according the standard regimen (non-operatively without early controlled movement of the ankle joint). Number of patients 65 patients will be included in each group (a 130 patients in total).
Cerebral venous thrombosis is considered as a rare type of stroke with an annual incidence of 3 to 4 per million people. It occurs generally in young patients (mean age of occurrence = 40 years) and principally in young females (75%) generally in pregnancy or oral contraceptive use situations. The onset may be acute (less than 2 days), subacute (between 2 and 30 days) or chronic (more than 30 days). The clinical presentation is highly variable and includes patients with only a mild headache, others with focal neurological deficits and a few with a dramatic syndrome and a coma. Moreover the evolution can be very different with unpredictable outcome: more often it is favorable with a low mortality rate, but in some cases it can be a worse course. The aim of this study is to evaluate the correlation of some biological markers: thrombin generation test and D-Dimers (marker of fibrin generation and degradation) with the type of onset or the wide spectrum of clinical presentations or the different modes of evolution. All patients over 16 years ago may be included in the program when CVT diagnosis is proved by magnetic resonance angiography (MRA). For each included patient, there are four blood assays: the first just at the time of diagnosis and before the beginning of treatment, the second before the beginning of the oral anticoagulant treatment. The third assay is done in the third month at the time of a MRA. The last assay is made one month after the end of the anticoagulant treatment or in 12th month after the beginning of the disease if the treatment goes on. For each sample, the investigators perform a thrombin generation test and a D-Dimers measurement.
The goal of the pilot study is to determine if a multicenter prospective cohort study of cancer patients with blood clots associated with catheters is feasible. Cancer patients with catheter-related thrombosis treated with one month of anticoagulation will be evaluated for for post-thrombotic syndrome. Laboratory biomarkers will be evaluated as predictors of recurrent thrombosis.
The etiologies of varicose veins and the progression to more serious forms of chronic venous disease and identification of appropriate diagnostic tests to better aid patient management by identifying individuals who may benefit from more aggressive treatment and/ or prophylactic measures.