View clinical trials related to Thrombosis.
Filter by:Thrombo-embolic venous diseases are represented by deep venous thrombosis and/or pulmonary embolism. In some patients with repeated thrombosis or occurrence of thrombosis in unusual sites, the etiological workup remains negative, which represents a problem for the management of the anticoagulant treatments. Recently, two factors have been identified as important in the physiopathology of hemostasis and coagulation: the presence of clonal hematopoiesis of indetermined potential (CHIP) and the formation of neutrophil extracellular traps (NETs). In this study, these two factors will be studied in patients with repeated venous thrombosis or thrombosis occurring in unusual site.
As the occurrence of thrombosis in post surgery is rare, it seemed difficult to study only this one. This is why we decided to test the bioimpedance, temperature and green, red and infrared light absorption measurements of the prototype during the weaning of the flap during surgery. Indeed, during weaning the investigators voluntarily interrupt the arterial and venous flow to transfer the flap to the breast. This weaning corresponds to a thrombosis model. The patients will benefit from an "improved" postoperative monitoring. Indeed, in addition to the classical clinical monitoring, they will benefit from an additional monitoring during 5 days thanks to the realization of an ultrasound of the flap which will be carried out every 6 hours the first 24 hours then every 12 hours. This protocol is therefore a feasibility study for the collection of data of interest.
This study is a prospective, multicenter, randomized controlled trial of an interventional strategy using the ClotTriever System to achieve and maintain vessel patency (ClotTriever Intervention Arm) versus conservative medical management using anticoagulation therapy alone (Conservative Medical Management Arm) in the treatment of subjects with symptomatic unilateral iliofemoral DVT. The study will collect data on demographics, comorbidities, details from the DVT diagnosis and treatment, and clinical outcomes through the 6-month follow up visit.
A new Clinical Score (CS) to rule out Deep Vein Thrombosis (DVT) has to be derived and internally validated (with bootstrap method), from patients suspected of DVT in Italy. Primary care physicians (general practitioners) in Lombardy will be instructed to inform patients suspected of DVT about this research and get in touch with the team to get details and, eventually, volunteer for the study. The CS includes categorical variables and a continuous variable: the differential leg skin temperature measured with a low-cost handheld infrared thermometer in object surface mode.
Objective: To study the efficacy and safety of apixaban as stroke prophylaxis in patients with chronic kidney disease (CKD) stage 5 and atrial fibrillation (AF) with or without dialysis treatment. The study hypothesis is that compared to no anticoagulation, apixaban reduces the incidence of ischemic stroke without causing an unacceptable increase in fatal or intracranial bleeding events. The secondary objectives are to evaluate the risk of all-cause mortality, cardiovascular events, and major bleeding in people with CKD stage 5 and AF treated with apixaban compared to standard of care without anticoagulation. Trial design: Pragmatic Prospective Open Label Randomized Controlled Clinical Trial, phase 3b over 12-72 months. Trial population: 1000-1400 patients at ≈50 sites in Sweden, Finland, Norway, Iceland and Poland Eligibility criteria: Adults ≥18 years with CKD stage 5 (ongoing treatment with any chronic dialysis treatment OR an estimated glomerular filtration rate (eGFR)* <20 ml/min/1.73 m2 at least twice 3 months apart of which at least one occasion is <15 ml/min/1.73 m2 due to CKD during the last 12 months) and a diagnosis of chronic, paroxysmal, persistent, or permanent AF or atrial flutter (AFL) with CHA2DS2-VASc score ≥2 for men or ≥3 or more for women as an indication for oral anticoagulation. The exclusion criteria are AF or AFL due to reversible causes, rheumatic mitral stenosis or moderate-to-severe non-rheumatic mitral stenosis at the time of inclusion into the study, a condition other than AF or AFL that requires chronic anticoagulation, contraindications for anticoagulation, active bleeding or serious bleeding within 3 months, planned for surgery within 3 months, and current use of strong inhibitors of both CYP3A4 and P-glycoprotein. Interventions: Randomization 1:1 to treatment with apixaban 2.5 mg twice daily and standard of care, or standard of care and no anticoagulation. Outcome measures: primary efficacy (time to first ischemic stroke); primary safety (the composite of time to first intracranial bleeding or fatal bleeding); secondary efficacy (time to all-cause mortality, time to cardiovascular event or cardiovascular death); secondary safety (time to first major bleeding according to International Society on Thrombosis and Hemostasis (ISTH) criteria)
In the present study, the investigators use high-resolution MR vessel wall imaging, and select patients with cerebral and cervical artery occlusion to investigate the relationship between the imaging appearance of thrombus and the various outcome of recanalization treatment.
The MATISSE (Molecular Analysis of Thrombus for Ischemic Stroke prognosis and Etiology) project evaluates the hypothesis that the molecular composition of cerebral thrombus in metabolites, lipids, and proteins conditions the clinical prognosis at 3 months of the infarction and informs on its etiological subtype
The goal of this registry is to gather more information on the efficacy and safety of various antithrombotic regimens. The registry collects data on patients with antiphospholipid syndrome and an arterial event within the past 12 months, on treatment with either A) a VKA with therapeutic range, INR 2.0-3.0 plus low-dose aspirin (75-100 mg daily), B) a VKA alone with therapeutic range, INR 2.0-3.0, C) a VKA with therapeutic range, INR 3.0-4.0, or D) with a dual antiplatelet regimen. The follow-up is 2 years.
Ischaemic stroke is usually due to occlusion of a cerebral artery by thrombus. However, it is often difficult to identify the source of thrombus, or to confirm thrombus as a cause of ischaemic stroke. Moreover, it is debated whether thrombosis plays any role in certain types of stroke such as lacunar stroke. In preliminary studies, the investigators have evaluated a novel clinical grade thrombus-specific radiotracer, 18F-GP1, which has a high specificity for the glycoprotein IIb/IIIa receptor on activated platelets. The investigations have demonstrated that 18F-GP1 is highly sensitive to in vivo thrombus formation and demonstrates avid binding to thrombus associated with myocardial infarction, pulmonary embolism and aortic bioprosthesis. This study will use this imaging approach to define the role and origin of thrombus in patients with ischaemic stroke, cryptogenic stroke and lacunar stroke.The investigators will also assess its added clinical value in assessing patients with ischaemic stroke.
Two recent randomized controlled trials (BAOCHE and ATTENTION) have confirmed the efficacy and safety of endovascular therapy in patient with acute ischemic stroke (AIS) due to basilar artery occlusion (BAO). However, it is still inconclusive whether there is any differences between endovascular therapy with or without bridging intravenous thrombolysis in acute BAO. So far, no randomized controlled trial has been conducted specifically for endovascular therapy with or without intravenous thrombolysis for ischemic stroke due to BAO. Therefore, this study plans to conduct a prospective, multicenter, randomized controlled trial to compare the functional outcomes between endovascular therapy with and without intravenous thrombolysis in patient with AIS due to BAO. This study is a multicenter, parallel, open label, randomized controlled trial comparing direct endovascular therapy versus endovascular therapy bridging intravenous thrombolysis (IVT). This study intends to include patients with AIS due to BAO fulfilling the following inclusion criteria: patients with AIS caused by BAO confirmed by CTA/MRA/DSA; IVT can be started within 4.5 hours after symptoms onset; Age ≥ 18 years old; NIHSS score ≥ 6. The main outcome is the 3-month mRS scale score. Secondary outcomes included NIHSS at 24 hours and 7 days after surgery, CTA vascular recanalization at 24-72 hours, mRS at 5-7 days, and infarct volume. The safety outcomes included 90-day mortality and the incidence of sICH.