View clinical trials related to Thrombosis.
Filter by:This study was initiated on the preliminary premise that a thrombus whose formation was triggered by a thrombogenic substrate, such as within an atherosclerotic plaque (Tissue factor initiated thrombus), may evolve differently than the one evolving at the site of a recently implanted stent (foreign body triggered). Consequently, the thrombus composition of a de novo clot could differ from the other one, extracted during the occurrence of a subacute thrombosis, regarding the number of various cells, the amount of fibrin and platelet aggregates and the relationship among these components. In addition, it seems relevant to evaluate the numbers and the distribution of the local monocytes, once these cells may interact with platelets (via cell -adhesion mechanisms e.g., by CD31 [PECAM-1]) and by the extrinsic coagulation pathway (via TF/FVII elaborated by plaque-resident macrophages). Such a distinction, if eventually found, may reveal the mechanisms of thrombosis within coronary arteries, and may have clinical implications.
Surface thrombogenicity of standard double lumen catheters (stDLC) and surface modified film-coated domain structured double lumen catheters (fcDLC) consisting of a novel reactive polyurethane copolymer coating showed that in vitro measured surface thrombogenicity was reduced in the modified catheter compared with standard catheter. The clinical investigation revealed that both number of days before catheter removal according to clinical requirements and number of treatments per catheter were significantly higher with the modified catheter as compared with the standard catheter. Recombinant tissue plasminogen activator (rt-PA) has been used primarily to treat catheter thrombosis. The relatively high cost of rt-PA and its theoretical potential to cause bleeding, as well as the morbidity and mortality associated with catheter malfunction and infection, justify the need for more definitive evidence of the efficacy of rt-PA as a locking solution. No study aims to evaluate the impact of rt-PA locking in long-term Hemodialysis (HD) uncuffed catheters survival.
The purpose of this study is to determine whether pharmacogenetic guided dosing of warfarin is promising for the improvement of efficiency, therapeutic efficacy, and, especially, safety of warfarin therapy than a dosing regimen without the pharmacogenetic information in Chinese patients initiated on warfarin anticoagulation.
To asses the cost-effectiveness of implementing different diagnostic strategies in patients with clinical assessment of suspected deep vein thrombosis (DVT) at first presentation in primary care. To evaluate the utility of using D dimer test to diagnose DVT in primary care. To describe the differential diagnosis and the strength of association between each outcome variable and the clinical prediction guide and the final diagnosis. It is a cross-sectional, multicentric study.
There are several factor that can be related to Neonatal Thrombotic events. Among them hypercoagulability can be the cause of those events. Factor V Leiden (FVL) and Prothrombin mutation are the most common causes of hereditary thrombophilia. The incidence of in the arab population is known to be higher than the incidence in another western populations. The purpose of this study is to review retrospectively the thrombophilic risk factors that were found in a cohort of premature babies and term newborns treated and investigated at the Neonatal Intensive Care Unit and at the Pediatric Hematology Unit.
The aim of this study is to estimate the incidence of spontaneous and provoked recurrent VTE and the bleeding events during a 10-year follow-up in subjects experiencing a first VTE stratified according to % AT levels and to treatment schedule (long-term vs 6-12 months oral anticoagulation+transient prophylaxis during high risk periods)
This study seeks to determine the rate of thromboembolic complications (blood clots), including death attributed to thromboembolic disease, when anticoagulation (blood thinner) therapy is withheld from pregnant patients suspected of deep vein thrombosis (DVT) after a whole-leg compression ultrasound shows no DVT. Patients are followed for three months after the ultrasound to determine if a blood clot is diagnosed during that time.
The PRESTIGE-registry is a joint effort at 9 European heart centers to collect data regarding patients presenting with stent thrombosis in a dedicated database. There will be extensive clinical and procedural characterization, furthermore blood platelet function testing, intracoronary imaging, DNA-sampling and analysis of thrombus aspiration will be performed.
The purpose of this study is to determine whether a limited duration of treatment (two weeks of low molecular weight treatment) is a safe and effective treatment for distal deep vein thrombosis of the lower limb.
The purpose of this study is to determine the HIT-antibody generation without prior heparin-exposure in patients undergoing orthopedic surgery.