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This study will investigate the epidemiology, risk factors, diagnostics, treatment, and the long-term prognosis of cerebral venous thrombosis in China.
Cerebral venous sinus thrombosis (cvst) is an underdiagnosed neurological condition with variable clinical presentations and variable risk factors CVST is often an underdiagnosed cause of acute or slowly progressive neurological deficit. With increasing awareness of the entity and easy accessibility to the non-invasive test like CT and MRI scans,CVST cases are now being diagnosed more frequently and it is now thought to occur more commonly than previously assumed.it is also probably true that this condition is more frequent in underdeveloped countries
The NoCVT study will investigate CVT (2010-2019) in a large Norwegian population (> 3 millions) using several approaches combining existing health registries, clinical databases and new prospectively collected clinical data to explore epidemiology, risk factors, diagnostics, treatment, and the long-term prognosis of CVT.
Cerebral venous thrombosis (CVT) is an uncommon venous-type of stroke tends to affect younger patients with somewhat different risk factors and much better outcome compared to arterial strokes. Anti-coagulation is the standard of treatment for patients with (CVT) initially with heparins followed by other oral blood thinners for several months. In this study, the investigators are comparing warfarin with another well-known blood thinner, rivaroxaban, which has a fixed once-daily dose with no need for monitoring in terms of clinical outcomes and complications.
Unusual site venous thromboembolism (VTE) refers to thrombosis occurring in venous districts outside the veins of the lower extremities and the pulmonary arteries, and includes splanchnic vein thrombosis (SVT), cerebral vein thrombosis (CVT), retinal vein thrombosis, ovarian vein thrombosis, and renal vein thrombosis. The use of the novel direct oral anticoagulants (DOAC), thrombin or factor Xa-inhibitors (such as dabigatran, apixaban, edoxaban, rivaroxaban), in patients with unusual VTE in clinical practice is increasing. Through an international multicentre prospective registry, the investigators aim to evaluate the rationale for the use of the DOAC for the treatment of unusual site VTE and to assess the safety and effectiveness of this approach in real life clinical practice.
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare acquired clonal hematological disorder, which can cause arterial or venous thrombosis. The frequency of PNH in young patients (< 50 years old) with embolic stroke (ESUS), transient ischemic attack (ETUS) or superior sagittal sinus cerebral venous thrombosis (SSS-CVTUS) of undetermined source, is currently unknown. This study proposes to recruit ESUS, ETUS, SSS-CVTUS patients to determine the frequency of PNH diagnosis confirmed by flow cytometry in these patient populations.
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.
This randomized phase III trial studies the side effects of and compares apixaban and dalteparin in reducing blood clots in patients with cancer-related venous thromboembolism. Venous thromboembolism is a condition in which a blood clot forms in a vein and then breaks off and moves through the bloodstream. Patients with cancer are at increased risk for venous thromboembolism. Apixaban and dalteparin are drugs used to prevent blood clots from forming or to treat blood clots that have formed. It is not yet known whether apixaban or dalteparin is more effective in reducing blood clots in patients with cancer related venous thromboembolism. ADAM-VTE