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Showing 1-20 of 120 trials
NCT06183944
The aim will be to identify clinically relevant phenotypes in patients with acute pulmonary embolism. Hierarchical clustering methods combined with unsupervised learning (machine learning) will be used to obtain groups of patients who are homogeneous at diagnosis. Evaluating their prognosis at 6 months (recurrence or chronic thromboembolic pulmonary hypertension), account the first 3 months of anticoagulant treatment, would provide an aid to medical decision-making. This research will include a retrospective and a prospective parts. The retrospective part will include patients who have been admitted to CHITS for acute pulmonary embolism since 2019. For the prospective part, it is planned to include patients with same characteristics over the years 2024 and 2025. More than 2,500 patients are expected to be included. This research will have no impact on current patient care. Data from consultations and various examinations carried out as part of care will be collected for six months post-diagnosis in order to meet the research objectives.
NCT06189313
To evaluate the safety and efficacy of the Cleaner™ Pro Thrombectomy System for aspiration thrombectomy in patients with acute pulmonary embolism (PE).
NCT05481242
This multi-center retrospective study collected clinical, laboratory, and CT pulmonary angiography parameters with acute pulmonary embolism patients from admission to predict adverse outcomes within 30 days after admission into hospital.
NCT06015529
The increased use of diagnostic imaging and especially computed tomography pulmonary angiography in patients suspected of pulmonary embolism (PE) is an important point of concerns. The goal of this pragmatic cluster-randomized trial is to compare the diagnostic strategy based on the four-level pulmonary embolism probability score (4PEPS) and current practices. The main questions it aims to answer is: "Does the diagnostic strategy based on 4PEPS significantly reduce the use of thoracic imaging without increasing the risk of serious adverse events as compared to current diagnostic practices?" Patients suspected of having PE in the participating emergency departments will be included and followed for 90 days. In ten centers, the emergency physicians will apply the 4PEPS strategy and in ten other centers, the emergency physicians will be free to do as they see fit. Researchers will compare the two groups of patients to see if the rate of diagnostic thoracic imaging tests and the rate of adverse events related to diagnostic strategies will differ.
NCT05171049
This is a Phase 3,multicenter, randomized, open-label, blinded endpoint evaluation study comparing the effect of abelacimab relative to apixaban on venous thromboembolism (VTE) recurrence and bleeding in patients with cancer associated VTE (ASTER)
NCT05907564
Evaluate the safety and efficacy of the Aventus Thrombectomy System for aspiration thrombectomy in subjects with acute pulmonary embolism.
NCT07342374
This randomized controlled trial evaluates a protocol optimization for Computed Tomography Pulmonary Angiography (CTPA). The study investigates the impact of repositioning the bolus-tracking region-of-interest (ROI) from the standard pulmonary trunk (PT) to the superior vena cava (SVC). The goal is to compensate for the CT scanner's inherent transit delay time (TDT) to better align the scan with the peak arterial phase. By optimizing this timing, the study assesses whether contrast media volume can be safely reduced by 40% (from 50 ml to 30 ml) while maintaining diagnostic image quality and preventing venous contamination.
NCT04657120
The aim of this study is to prospectively validate the safety and efficiency of management according to the YEARS algorithm to safely rule out clinically suspected PE in patients with active malignancy to be compared with 'standard' management by computed tomography pulmonary angiography (CTPA) alone in a randomized study.
NCT05171075
This is a Phase 3, multicenter, open-label, blinded endpoint study to evaluate the effect of abelacimab relative to dalteparin on venous thromboembolism (VTE) recurrence and bleeding in patients with gastrointestinal (GI)/genitourinary (GU) cancer associated VTE (Magnolia)
NCT06357403
The goal of this observational study is to analyse the association between anti-factor Xa activity (antiXa) and the occurence of venous thromboembolism (VTE; either deep vein thrombosis and/or pulmonary embolism) in critically ill patients who are admitted to an intensive care unit. The main questions it aims to answer are: * What is the association between antiXa and VTE? * What is the association between antiXa and symptomatic, respectively incidental, VTE? * How is pharmacological anticoagulation with enoxaparin related to measured antiXa? * What is the association between antiXa and bleeding complications. * What is the incidence of venous thromboembolism in patients treated at an intensive care unit? * How is the occurence of VTE related to patient-centred outcomes such as mortality, quality of life, length of stay and days outside of the intensive care unit/hospital.
NCT07165587
The goal of this observational study is to investigate the incidence of venous thromboembolism (VTE) in patients with pelvic and acetabular fractures (PAF). The main question it aims to answer is: What is the incidence of VTE in PAF patients receiving standardized thromboprophylaxis with enoxaparin 4,000 IU twice daily? Participants admitted with a pelvic, acetabular, or combined fracture receive thromboprophylaxis as part of their routine clinical care. All participants undergo bilateral duplex ultrasound screening during hospitalization to detect both symptomatic and asymptomatic deep vein thrombosis. If pulmonary embolism is clinically suspected, computed tomography pulmonary angiography is performed. The study aims to provide prospective observational data on VTE incidence and its association with fracture type, patient risk profile, and treatment modality.
NCT07107347
Echocardiographic Assessment: Performed within 24h of PE diagnosis Conventional parameters: TAPSE, RV FAC, RV/LV ratio, tricuspid S', PASP STE parameters: RV free wall longitudinal strain (RVFWS), global longitudinal strain (GLS) if feasible All measurements averaged over 3 cardiac cycles (sinus) or 5 (AF) Follow-up data: ICU/hospital LOS Need for vasopressors/mechanical ventilation In-hospital and 30-day mortality
NCT06451003
While blood clots after major cancer surgery are common and harmful to patients, the medications to decrease blood clot risk are seldom used after patients leave the hospital despite the recommendation of multiple professional medical societies. The reason why these medications are seldom prescribed is not well understood. The main questions this study aims to answer are: * Does surgeon education paired with an electronic medical record based decision support tool improve the guideline concordant prescription of pharmacologic venous thromboembolism after abdominopelvic cancer surgery? * Does dedicated patient education regarding blood clots at the time of hospital discharge after abdominopelvic cancer surgery improve understanding of the risk of venous thromboembolism and adherence to pharmacologic prophylaxis? The investigators will study these questions using a stepped-wedge randomized trial where groups of surgeons will use a tool integrated to the electronic medical record to educate them on the individualized patient risks of blood clots after major cancer surgery and inform them regarding guidelines for preventative medicines. Utilization of the medications before and after using the tool will be compared. Patients will be administered a questionnaire assessing their awareness of blood clots as a risk after cancer surgery. For those prescribed medications to reduce blood clot risk after leaving the hospital, the questionnaire will evaluate whether they took the medications as prescribed. Survey results will be evaluated before and after implementation of education on blood clot risk at the time of hospital discharge.
NCT06062329
Evaluation of the Safety and Efficacy of the Symphony Thrombectomy System in the Treatment of Pulmonary Embolism
NCT06480994
The goal of this non interventional study is to demonstrate the diagnostic performances on fresh plasmas in comparison with the performances on frozen plasmas in any patients with VTE suspicion, whatever the pre-test probability. The main question it aims to answer is : Are the performances equivalent on fresh plasmas in comparison with frozen plasmas or is it necessary to determine a new algorithm of the Clinical Decision Support with a new cut-off? Participants will be diagnosed and treated in accordance with routine standard of care.
NCT06954727
Right heart catheterization(RHC) plays a crucial role in the diagnosis and treatment of pulmonary vascular diseases(PVD). In China, the lack of equipment and technical expertise has historically limited the implementation of RHC, thereby greatly restricting the diagnosis and treatment of RVD. In recent years, with improvements in these issues, more hospitals have acquired the capability to perform RHC. The purpose of this study is to conduct quality control of RHC across multiple pulmonary hypertension(PH) centers in China. The study population consists of patients who underwent RHC for the first time due to dyspnea or suspected PH. This study retrospectively and prospectively collects multicenter RHC data, with the main quality control contents including indications for the procedure, collection and analysis of hemodynamic data, diagnosis and treatment, and long-term management of patients.
NCT06187987
International guidelines recommend intravenous thrombolysis (IVT) for high-risk pulmonary embolism (PE). In high-risk PE where IVT is contraindicated or has failed, surgical embolectomy or catheter-directed intervention (CDI) is recommended. CDI is also recommended as an alternative in patients with intermediate-risk PE with haemodynamic deterioration during anticoagulation treatment. Although there is a lack of randomized studies comparing CDI to anticoagulation or systemic thrombolysis in PE, several studies and recent meta-analyses have shown that CDI is an effective treatment that is associated with fewer complications than IVT, especially bleeding.
NCT03080883
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.
NCT06946732
The registry is to evaluate the safety and feasibility of catheter-directed aspiration for patients with high-risk and intermediate-high-risk pulmonary embolism using Acostream.
NCT06453876
The STRATIFY II trial investigates the efficacy of three different approaches to reducing thrombus burdon in patients with acute intermediate high-risk pulmonary embolism: percutaneous embolectomy (the Flow Triever® system, INARI medical), USAT (EKOS® system, Boston Scientific with low dose alteplase) and heparin with the option to perform full-dose thrombolysis. As a co-primary secondary end point the trial assess the incremental efficacy of the embolectomy vs the catheter based low dose thrombolysis approach. Thus the two main hypothesis being tested are: 1. Thrombus burden reduction after 48-96 h is increased with a catheter based (embolectomy or USAT) compared to the a heparin with optional high dose thrombolysis approach (1st co-primary outcome) 2. Thrombus burden reduction after 48-96 h is increased with percutaneous embolectomy compared to USAT with low-dose alteplase (2nd co-primary outcome)