View clinical trials related to Thrombosis.
Filter by:The APPEND-CT registry is an investigator-driven multicenter retrospective observational database intended to compile cardiac CT follow-up data after Watchman FLX device implantation and function as a platform for answering clinical and research questions within LAAC follow-up. The derived studies should support therapeutic decision-making, improve risk-stratification in LAAC and help generate hypotheses for potential future clinical intervention trials.
The goal of this observational study is to investigate the incidence, current management practices, and outcomes in pediatric patients with HAC after liver transplantation. Research question: - What are the overall incidence of HAC and the effectiveness of all treatment strategies for HAC after pediatric LT? - What are the current management practices in the experience of centers, anticoagulant therapy, screening protocol, and assessment criteria for HAC after pediatric LT? The burden of participation is considered to be minimal, and limited to the questionnaires.
To evaluate the venous valvular function after pharmacomechanical thrombectomy (PMT) for acute femoral-popliteal venous thrombosis.
Background: COVID-19 can cause problems in different parts of the body. For most people, it causes fevers or trouble breathing. Some people might not recover all the way. Researchers want to see if a treatment can help with people who have recovered from COVID-19 but still have symptoms ("Long COVID"). Objective: To learn if human immunoglobulin (IVIG) will help with neurological symptoms of Long COVID. Eligibility: Adults ages 18 and older who had COVID-19 at least 12 weeks ago and have ongoing neurologic symptoms, such as dizziness, trouble walking, or problems with strength. Design: Participants will be screened with a medical record review. Participants will have a medical history and a physical exam and complete questionnaires about their health and quality of life. They will have a spinal tap. They will give blood samples. They will discuss their symptoms with a neurologist and have a neurological exam. Participants will take memory and thinking tests using a tablet. The tests will take 1 hour to complete. They will also take a smell and taste test. It will take approximately 30 minutes to complete. Participants will lie on a table that tilts for up to 40 minutes. Their blood pressure and heart rate will be monitored. Blood will be taken through an intravenous (IV) catheter. Participants will receive either IVIG, or saline by IV for 5 days. Then the participants will receive IVIG if they first received saline or saline if they first received IVIG by IV for another 5 days. They will not know what they receive. Participants will have an MRI of the brain if they have not had one recently. They will receive a contrast agent by IV as part of the MRI scan. Participants will be on the study for up to 4 months. They will have follow-up visits at the clinical center as well as fill out questionnaires at home. They may be asked to continue follow-up....
Studies that used a dilute citrate formulation (4%) demonstrated efficacy as an anticoagulant with minimal to no risk of bleeding in HD sessions. This study will compare effectiveness and safety utilizing 4% sodium citrate vs. heparin as a lock solution in central venous hemodialysis catheter among hemodialysis patients.
A registry of UK patients diagnosed to have splanchnic vein thrombosis and myeloproliferative neoplasm, including isolated mutation of JAK2V617f. The purpose of the registry is to understand outcomes, treatment variations and data to inform and enable future clinical trial design and facilitate regulatory approval decision-making.
Pulmonary embolism impacts over 1 in 1000 adults annually and is the third leading cause of cardiovascular death after heart attack and stroke. The consequence of each PE is widely variable. Physiologically, the morbidity and mortality of PE is ultimately caused by failure of the right ventricle. The acute rise in pulmonary vascular resistance caused by a PE can overwhelm the right ventricle, resulting in a drop in cardiac output and death from failure of the heart to provide vital perfusion. Despite the importance of stroke volume and cardiac output in the current understanding of PE mortality, they are notably absent from risk stratification scores because they historically could only be measured invasively. Novel non-invasive methods of estimating stroke volume and associated cardiac output have the potential to revolutionize PE risk stratification and care. Non-invasive blood pressure (NIBP) monitors can even measure stroke volume beat to beat, allowing for continuous evaluation of cardiac function. NIBP systems are typically composed of a finger cuff with an inflatable bladder, pressure sensors, and light sensors. An arterial pulse contour is formed using the volume clamp method of blood pressure measurement combined with calibration and brachial pressure reconstruction algorithms. The stroke volume with each heart beat can be estimated as the area under the systolic portion of the blood pressure curve divided by the afterload. NIBP monitors may improve clinical care of PE because they allow for assessment of dynamic cardiac changes in real time. Detection of worsening stroke volume in acute PE could inform providers of impending cardiac collapse, and improvement of stroke volume may function as a positive prognostic factor or marker of therapeutic success. Use of NIBP monitors during acute PE to identify clinically significant changes in cardiac function may advance both PE prognostication and management. Our clinical study proposes to monitor hemodynamic parameters including stroke volume in patients with acute pulmonary embolism using non-invasive blood pressure monitors. The relationship between hemodynamic parameters and PE outcomes will be assessed, as well as the changes in hemodynamic parameters with PE intervention. To our knowledge, interval monitoring of stroke volume during acute PE with NIBP monitors has never been reported before.
Hepatocellular carcinoma (HCC) is the fourth most common cancer in China, with a crude incidence rate of 26.67 per 100,000 population. Moreover, 357,800 new liver cancer cases are predicted to be diagnosed in China in 2020. HCC represents approximately 90% of all cases of primary liver cancer. HCC has a high predilection for portal vein invasion, which occurs in 44-62% of living patients with HCC. Patients with PVTT usually have an aggressive disease course, decreased liver function reserve, limited treatment options, thus worse overall survival. Among untreated HCC patients with PVTT, the median overall survival has been reported as low as 2 to 4 months with supportive care. Sorafenib is the first-line treatment for HCC patients with PVTT, however, it has shown unsatisfactory benefit. Notably, sorafenib combined with TACE significantly improved the TTP over sorafenib alone, albeit for no more than 1 month in the median TTP, and the median OS was not significantly prolonged. A promising drug-lenvatinib was approved in China on September 2018, in the China patients subgroup analysis showed an encouraging results. Lenvatinib group had showed a significant benefit in TTP, PFS and ORR. Also median overall survival time was significantly improved in China subgroup (Lenvatinib group: 15 months VS Sorafenib group: 10.2 months). However, REFLECT didn't enrolled patients who had tumors invading the maint portal vein. The mechanisms of lenvatinib or sorafenib combined with TACE were still unknown, and clinical data were limited. This study was to explore lenvatinib plus TACE versus sorafenib plus TACE for HCC with PVTT: efficacy and safety. Biomarkers expression of VEGFR, FGFR, FDGF-α, IL-2,etc would be detected to find the difference between the two groups, finally to analyze the relationship between clinical outcomes and biomarkers' expression. A better treatment modality to HCC with PVTT patients would be expected and promoted.
In this prospective clinical study, the researchers investigate the incidence of catheter-related thrombosis and catheter-related infection during indwelling central venous catheterization in critically ill patients, and analyzed the risk factors for catheter-related complications and the relationship between catheter-related thrombi and catheter-related infections. The sample size is about 500.
The main objective is to reduce the incidence of venous thromboembolism (VTE) in orthopedic postoperative patients based on the potential benefit of using rivaroxaban as a monotherapy. It is around efficacy and safety evaluation of using rivaroxaban as a monotherapy prophylactic agent in patients undergoing orthopedic surgeries taking into the account the reliable selection of patients most benefit. Answering questions about additional cost benefit from the perceptive of the cost-effective analysis on extrapolating the results emerged to our university teaching hospital setting are going to be evaluating as well.