Active clinical trials for "Thrombosis"

The overall incidence of deep vein thrombosis (DVT) and pulmonary embolism (PE) is 1 per 200 cancer patients, about 5 times higher than in the general population. These events are of crucial importance, since nearly 10% of cancer patients died from thromboembolic events (EVT), making them the second leading cause of death in this population. In hospitalized patients, the rate seems to have increase between 1979 and 1990 from 0.6% - 2% before 1990 to 4% since 1990. Thrombotic risk in cancer patients is known and identified. Thrombotic complications affect the survival and quality of life of cancer patients. Chemotherapy is a regular generator of cytopenia, the most prominent of which is thrombocytopenia. In addition, a prospective study of 107 cancer patients in our institution shows that almost 40% of patients over 65 years of age take anticoagulant or antiplatelet therapy. In this specific population (i.e., with cancer and hypocoagulability), the occurrence of thrombosis poses particular problems. The prevalence and incidence of venous thrombosis in this situation is unknown and the behavior to be poorly specified. Based on these considerations, The investigator propose a two-year prospective cohort study to explore the biological parameters of hypocoagulability and to assess the incidence and prevalence of DVT in thrombocytopenic patients on vitamin K antagonists. (AVK), anti-platelet aggregation (AGP) and / or direct oral anticoagulant (AOD). In this study, the investigator means by hypocoagulability any situation modifying the normal coagulation system.

The purpose of the study is to learn if monitoring dialysis access blood flow during dialysis treatment with a transonic machine (an ultrasound technique) will prevent (or reduce) the development of dialysis access thrombosis (clotting). Investigators would like to study if monitoring with a specific technique called ultrasound dilution technique can help prevent problems with access when compared to what is the current standard of care for patients.

The SENTRY Bioconvertible Inferior Vena Cava (IVC) Filter has been developed to provide temporary protection against pulmonary embolism (PE).

Intracranial hypertension (ICH) is a mortality risk factor in severe traumatic brain injury (TBI), in purulent meningitis, in hepatic encephalopathy and in Reye's syndrome. It is also a risk factor for severe neurologic sequelae in survivors. Intracranial pressure (ICP) monitoring is likely to guide therapeutics, and certain research on adults or on children, suggest that IH therapeutic approach, for instance for bacterial meningitis, would improve the prognosis. Two monitoring techniques are currently recommended. They are reference methods for ICP measure : monitoring with intraventricular catheter, intra-parenchymal monitoring using optical fiber catheter. Non invasive methods have been suggested, including ultrasound measurement of optic nerve sheath diameter (ONSD) which is the most interesting one. The ONSD measured ultrasonically is correlated with ICP level in adults with severe TBI. A diameter over 5,9 mm predicts ICH within the first 24 hours. In children, ONSD average values have been worked out, and an ONSD increase is found in children suffering from hydrocephalus with IH and in children with TBI. ICH precocious detection is fundamental in children sensitive to ICH because their cerebral development is not finished yet. Difficulties met for ICP monitoring implementation in infants and its invasive nature are often disliked by clinicians. A non-invasive exam is then essential to allow a better care of children with ICH in intensive care unit.

Aims: (to prove that) The distal injection of IIb IIIa platelet receptor blocker to the thrombus occlusion is better than normal injection during primary percutaneous intervention (PCI) for the treatment of acute myocardial infarction. Using this modification of injection method the investigators can achieve less microvascular damage and a reduction of the infarct size with a significant improvement of the outcome at six months.

The objective of this study is to determine if the action of the drug called clopidogrel, that you will start taking, will be decreased by another drug called atorvastatin, that you will also start taking. Clopidogrel is an oral antiplatelet agent that has been shown to prevent strokes and heart attacks. Atorvastatin is a cholesterol lowering agent. Twenty adults 18-75 years of age requiring cholesterol-lowering agent and antiplatelet agent therapy will be recruited for this study during their cardiology clinic visitation. In one group, antiplatelet agent (clopidogrel) regimen will be administered first, then followed by cholesterol-lowering medication (atorvastatin). In the second group, atorvastatin will be administered first, followed by clopidogrel. A new test called the erythromycin breath test will be administered to you three times during the study to measure how your liver will metabolize these drugs. Blood samples will also be obtained to assess platelet function. The criteria for exclusion are patient refusal or inability to give written consent, patients with allergic reaction to erythromycin, patients with known bleeding problems, liver disease, significant lung disease kidney disease and pregnancy. Patients with psychiatric impairment and documented history of substance abuse will also be excluded from the study.

The STRATAGEM trial is an investigator-driven French nationwide multicenter, randomized, double-blind, placebo-controlled trial comparing perioperative low-dose aspirin therapy versus placebo in the perioperative period in patients with documented symptomatic stable atherothrombotic disease taking antiplatelet therapy and undergoing non-coronary surgery.

Atrial fibrillation is common and increases the risk of stroke. Traditionally patients are treated with blood thinning medications or at the time of surgery the part of the heart where blood clots form is cut out. Surgically cutting out the left atrial appendage can be difficult and complications can occur. An alternative strategy is to create a tunnel to increase blood flow and wash out the part of the heart where clots form. This strategy has not been previously studied. The purpose of this study is to determine if creating a tunnel to increase blood flow is feasible and safe.

To examine the revascularization efficacy and safety of T-02 and its associated performance characteristics in treatment of appropriately selected subjects experiencing an acute ischemic stroke when the treatment is initiated within 24 hours after last seen well under the current guideline, and to generate hypotheses to be confirmed in subsequent confirmatory clinical investigations

The aim of the study is to evaluate the safety and performance of the ClotTriever catheter in the treatment of patients with symptomatic iliofemoral deep vein thrombosis (DVT)