View clinical trials related to Venous Thrombosis.
Filter by:This randomized phase III trial studies the best dose of apixaban and how well it works in preventing secondary cancer related venous thrombosis in cancer patients who have completed anticoagulation therapy. Apixaban may help in prevention by blocking some of the enzymes needed for venous thrombosis.
'The PACT trial' is randomized pilot trial to demonstrate the feasibility and potential effectiveness of a personal "fitness tracker" to improve adherence to an activity regimen following an initial acute DVT in children.
The research team's aim is to investigate the effects of the team's soft robotic socks in providing assisted ankle dorsiflexion-plantarflexion and promoting venous blood flow in stroke patients. Specifically, the investigators intend to 1) observe the development of joint contracture in terms of the range of motion of the ankle joint given the use of the device 2) monitor the presence of blood clots in the deep veins using compression Duplex ultrasonography given the use of the sock device. The investigators hypothesize that a soft robotics approach can provide compliant actuation to simulate natural ankle dorsiflexion and plantarflexion, which will consequently promote blood circulation in the lower leg of stroke patients who have not previously developed ankle joint contracture. This will prevent the occurrence of DVT and movement in the ankle joint will alleviate stiffness. This robotic sock intervention is to prevent the development of ankle joint contracture so established ankle contractures will be excluded from this study.
Introduction Undiagnosed deep vein thrombosis (DVT) can lead to significant morbidity and mortality, including death from DVT-associated massive pulmonary embolism (PE). While several validated clinical prediction rules, blood test and imaging modalities exist to investigate a potential DVT, there is currently a lack of rapid, accessible and reliable methods to exclude the possibility of DVT without resorting to formal venous duplex scanning. Currently, the use in the ED of a validated clinical prediction rule combined with high-sensitivity D-dimer test has a poor predictive value, as 75-90% of patients suspected of DVT have a negative formal venous duplex scan. Compression bedside ultrasound has however recently been shown to be a safe, rapid and accurate method for the diagnosis of proximal DVT in the emergency department with a high sensitivity and specificity (combined sensitivity and specificity of 96.1% and 96.8%, respectively1). Research Question In the present study, the investigators will primarily assess whether two-site compression POCUS combined with a negative age-adjusted D-dimer test can accurately rule out DVT in ED patients regardless of the Wells criteria. Methods This is a single-center, prospective, observational study carried out over one year in the Emergency Department of the Jewish General Hospital in Montreal, Quebec. The investigators aim to enroll a convenience sample of 475 patients aged 18 years and older presenting to the ED with symptoms suggestive of a DVT. All enrolled patients will receive the standard of care required for a lower leg DVT presentation. After calculating Patients DVT risk using modified wells criteria, all patients will undergo POCUS for DVT followed by a D-dimer test. Based on their results, patients will either undergo formal duplex scanning, or will be discharged without further testing and receive a three-month phone follow-up. A true negative lower leg DVT will be defined as follows: 1. Negative follow-up phone questionnaire for patients who were sent home with no formal duplex venous scanning. 2. Negative formal duplex venous scanning for patients who were deemed likely to have lower leg DVT using the Wells score, with a negative D-dimer and POCUS Age-adjusted DVT was added to account for below knee DVT and avoid the need for patients to return for fellow up duplex study in 1 week. To estimate our technique's sensitivity with a 4% margin of error with 95% confidence intervals, 92 confirmed DVT patients are needed. The investigators expect to recruit a total 475 patients within one-year period at the JGH (95 DVT-positive patients and 380 DVT-negative patients). Impact The use of compression bedside ultrasound with a negative age-adjusted D-dimer test to rule out DVT in the ED may accelerate the decision regarding patient disposition and significantly decrease the length of patient stay in the ED. In addition, it may help avoid unnecessary medical interventions and diagnostic tests, thus representing potential quality of care and cost-saving improvements as well.
This study aims to compare two different external calf compression devices applied in healthy individuals. These devices are commonly used in medical care in order to prevent the formation of blood clots, for example during immobilization after surgery. We aim to confirm the effects of external cyclic compression on healing and blood clotting and also to identify the one which is more effective.
The primary objective in this cross-sectional study is to assess the prevalence of post-thrombotic syndrome (PTS) in the two treatment arms of the RE-COVER studies (warfarin versus dabigatran). PTS will be assessed by the recently developed Patient Reported Villalta (PRV) Score. Secondary objectives: to assess in both treatment arms the 1. Prevalence of recurrent venous thromboembolism (VTE) after the discontinuation of study treatment. 2. Prevalence of PTS determined by the standard Villalta score. 3. Health related Quality of Life (HRQoL).
The aim of the study is to evaluate efficacy and safety of venous thromboembolism prophylaxis by the combination of graduated compression stockings (GCS), standard doses of low-molecular-weight heparins (LMWH) and sequential compression device (SCD) in the mixed group of surgical patients at high and extremely high risk for venous thromboembolism.
This is a two arm, prospective, single center, randomized clinical trial. Subjects will be randomly assigned into one of two groups using block randomization technique in a 1:1 ratio. The control group will receive care using elastic compression stocking and the intervention group will use the ACTitouch device. Stratified randomization will occur based on whether the Deep Vein Thrombosis (DVT) has iliac or non-iliac involvement. Subjects will be followed for 2 years with clinic visits occurring at 1, 3, 6, 12, and 24 months.
This is a Clinical Trial on the use of Point Of Care Ultrasound for the diagnosis of deep venous thrombosis (DVT) and its effect on length of hospital stay. 25 participants with suspicion of DVT according to Wells Criteria were randomized to one of two groups: Point of Care Ultrasound and Echo Doppler Ultrasound (POCUS + EDUS), and the control group was submitted only to the Echo Doppler Ultrasound (EDUS). The primary outcome was hospital stay.
The patients admitted in hospital who had midline catheter inserted in upper limb are followed-up for the presence of complications related to catheter introductions. The symptoms and signs of upper limb thrombosis are recorded. The diagnosis is confirmed by sonography examination. In the selected group of asymptomatic patients sonography examination is done 8 to 10 days after cathether insertion in order to detect the incidence of the asymptomatic thrombosis