View clinical trials related to Thrombosis.
Filter by:In a French multicenter double blind randomized controlled trial, the main objective is to demonstrate that, after 6 months of oral anticoagulation for a first episode of idiopathic proximal deep vein thrombosis, 18 months of warfarin therapy is associated with a lower cumulative risk of recurrent VTE and major bleeding in comparison with that on 18 months of placebo. The secondary objectives are: (1) to determine the risk of recurrent VTE after 6 months of warfarin therapy and the presence or the absence of residual lung scan perfusion defect and the persistence or not of elevated D-dimer test; and (2), to determine the impact of extended duration of anticoagulation on the risk of VTE after stopping anticoagulant therapy on a follow-up of 2 years.
The objective of the EDVIGE study is to determine whether a negative single distal and proximal leg veins compression ultrasonography safely rules out the diagnosis of deep vein thrombosis in pregnant and post-partum women with clinical suspicion of DVT.
The majority of bridge graft fistula with polytetrafluoroethylene (PTFE) for hemodialysis access will develop stenosis at the venous anastomosis and eventually will fail. Aspirin have been used for many years as a prophylactic drug therapy to prevent thrombosis but good clinical evidence for its benefit is lacking. Many drugs have been used to reduce intimal hyperplasia in animal models. Until recently there has been little success in clinical trials of anti-inflammatory, antiproliferative, antiplatelet, antithrombotic or calcium channel blocking drugs. Recently a major breakthrough was done by GORE when introducing the new heparin bonded PTFE graft by covalent attachment. This trial is planed to assess and compare between the GORE-TEX® PROPATEN vascular graft versus unmodified ePTFE grafts the patency and complication.
The study will assess the clinical and laboratory data of about 100 pediatric patients diagnosed and treated at the Pediatric Hematology Unit during the years 1980 until 2007 because of thrombotic events. The results, the treatment given, and the outcome of the patients will be summarized.
The purpose of this study is to compare two different marketed PICC (peripherally inserted central catheter) designs. Clotting rates, procedural bleeding and ease of catheter insertion will be compared. It is hypothesized that the non-tapered design has a lower clotting rate and is easier to place than the tapered design. Bleeding rates are expected to be about the same.
The purpose of this study is to see if the investigators can use ultrasound imaging to determine the type of clots in patients to help better manage their care.
The purpose of this study is to determine if the risk of recurrent venous thromboembolism (VTE) after stopping therapy is low and acceptable in patients with a first unprovoked proximal deep vein thrombosis (DVT) or pulmonary embolism (PE) who have completed 3 months of therapy and who have a negative D-dimer test on therapy and 1 month after stopping therapy.
Thrombosed external haemorrhoids are one of the most frequent anorectal emergencies. They are associated with swelling and intense pain. This study evaluated the efficacy and safety of an intersphincteric injection of botulinum toxin for pain relief in patients with thrombosed external haemorrhoids
Primary Objective: To test if 600 mg of clopidogrel loading dose administered ≥ 6 and ≤ 24 hours prior to PCI produce a greater decrease of periprocedural release of biochemical markers (CK, CK-MB, and troponin-T and/or I) of myocardial necrosis, compared to 300 mg loading dose, given ≥ 6 and ≤ 24 hours prior to PCI or 600 mg loading dose of clopidogrel, administered immediately (≤ 45 minutes) before PCI.
The purpose of the study is to determine the Pharmacokinetics of Low Molecular Weight Heparin (LMWH) in Cancer patients, and compare it to the Pharmacokinetics of LMWH in Patients without cancer. We also intend to detect any correlation between heparanase blood and urine levels and the Pharmacokinetics of LMWH.