Active clinical trials for "Thromboembolism"

The aim of this study is to evaluate the frequencey and the determinants of postpartum major complications (hemorrhage and thrombosis) up to 3 months after delivery in the maternity hospitals of Finistère (Bretagne - France)

The WATCHMAN LAA Closure Technology is designed to prevent embolization of thrombi that may form in the LAA, thereby preventing the occurrence of ischemic stroke and systemic thromboembolism. The objectives of this observational, prospective, non-randomized multicenter study are (1) to compile real-world clinical outcomes data for WATCHMAN LAA (left atrial appendage) Close Technology in patients who are implanted with the WATCHMAN device in a commercial clinical setting and (2) to collect real-world usage data that may be needed for reimbursement of WATCHMAN technology in certain countries.

The aim of the present study is to determine the frequency and to identify main risk factors for venous thromboembolism of venous thromboembolic complications in a population of cancer patients treated with a curative intent by ionizing radiation.

Occurrence of venous thromboembolism during in Vitro Fertilization (IVF) pregnancies has been reported in numerous case reports and in two small consecutive series. The incidence of venous thromboembolism (VTE) after IVF has been claimed to be comparable to the incidence of VTE during normal pregnancy. No information exists concerning pulmonary embolism (PE). The aim is to estimate and compare the risk of both PE and VTE during the the different phases of pregnancy after IVF to that in age and period matched control women. The investigators will use the Swedish National Health Registers to estimate the risk.

The aim of this study estimate VTE incidence. Investigators prospectively record all cases of symptomatic pulmonary embolism (PE) and deep vein thrombosis (DVT) of the lower limbs diagnosed between March 1, 2013 and February 28, 2014 in hospitals and in the community.

The research question addressed by this study is primarily on the clinical epidemiology of VTE in Taiwan. The study aims to estimate the incidence of VTE and describe natural history of VTE, including long term clinical outcomes in adult Taiwanese population, utilizing population-based electronic health data in Taiwan.

Venous thromboembolism occurs with an incidence of about 1 per 1000 per year in adults . The main consequences are death, recurrence, post-thrombotic syndrome and major bleeding due to anticoagulation. Mortality rates are lower among patients with idiopathic venous thrombosis and higher among those in whom thrombosis occurs in the presence of cancer. The risk increases with the age for unclear reasons. There are also differences in the incidence according to ethnicity; however, data in subjects of European ancestry are scarce. Several studies have documented an association between thrombosis and ABO group. Specifically, non-O blood groups have a higher risk of myocardial infarction, angina, peripheral vascular disease, cerebral ischemia and venous thromboembolism than O. While there are numerous studies carried out in patients who have already shown thromboembolic events, data on the incidence of risk factors in the healthy population are completely inadequate. Understanding the risk factors for venous thrombosis is necessary to maximize the prevention of this disease in individuals and groups of high-risk patients . For this purpose a self-administered questionnaire will be used. Data obtained by blood donors on exposure to risk factors will be used to set up a clinical score to validate in future studies to carry out in patients with VTE.

Venous thromboembolism is a common and fatal disease closely related to cancer. The therapeutic challenge is major due to the high risk of recurrent thromboembolism and bleeding in patients with cancer. Guidelines recommend the use of low molecular-weight heparin for the treatment of Cancer-Associated venous Thromboembolism (CAT) at least for 3 to 6 months of treatment. However, recent advances through the results of several therapeutic trials such as CARAVAGGIO (NCT03045406) open the door to the use of Direct Oral AntiCoagulants (DOACs) as first-line therapy. Nevertheless, extrapolation of its results may be limited owing to a large number of inclusion and exclusion criteria, which may have selected a reduced population. The proportion of patients admitted with acute CAT who may not eligible to a trial as CARAVAGGIO is unknown.

Rationale Many patients with coronavirus disease (COVID-19) need hospital admission for oxygen supplementation. A substantial number of patients need intensive care unit (ICU) admission for escalation of care. ICU doctors and nurses are struggling to provide the best care for patients with COVID-19. Practice of adjunctive and supportive treatments remains uncertain. Objective To determine and compare practice of adjunctive and supportive treatments for COVID-19 in the Netherlands, and to determine their independent associations with outcome. Hypotheses Practice of adjunctive and supportive treatments for COVID-19 varies substantially. Adjunctive and supportive treatments have an independent association with outcome in ICU patients with COVID-19. Study design National/international, multicenter, retrospective observational study. Study population Intensive care unit (ICU) patients with COVID-19. Methods In this study we will collect data on diverse treatments during the first 28 days in ICU, including (a) the types of oxygen support* and awake prone positioning; (b) the types of ventilatory support, (c) rescue therapies for refractory hypoxemia during invasive ventilation (prone positioning, ventilator adjustments, continuous muscle paralysis, and extracorporeal membrane oxygenation); (d) adjunctive treatments, including thromboprophylaxis and anticoagulation, antiviral and immunomodulating therapies, and (e) experimental supportive treatments. Outcomes include duration of each adjunctive treatment, duration of ventilation, incidence of tracheostomy, duration of stay in ICU and mortality until day 90. Study endpoints A combination of adjunctive treatments, including types of oxygen support, ventilatory support and rescue therapies for refractory hypoxemia during invasive ventilation (primary), other adjunctive and supportive treatments, tracheostomy rate; duration of ventilation and ventilator-free days and alive at day 28 (VFD-28), duration of ICU and hospital stay, and ICU, hospital and 90-day mortality. Nature and extent of the burden and risks associated with participation, benefit and group relatedness Retrospective collection of data regarding adjunctive treatments, and clinical endpoints is without risk for ICU patients. *In a subset of patients we will collect granular data (every two hours) regarding oxygenation (FiO2, inspiratory tidal volume, air flow, respiratory rate, SpO2, PaO2, and PEEP) over the first 2 full calendar days of ICU admission. The primary endpoint of this sub-analysis will be the amount of oxygen used with different respiratory support interventions. The statistical analysis plan for the analysis of these data that were collected in two ICUs that participated in the national study, and one additional ICU in Spain is uploaded in the document section (filename Statistical Analysis Plan PROXY-COVID)

Severe COVID-19 patients at a high risk of venous thromboembolism. We studied patients in 2 intensive care units of university hospitals in Barcelona and Badalona, Spain. We performed a cut-off screening of deep venous thrombosis (DVT) with bilateral duplex ultrasound to 230 patients.