Active clinical trials for "Pulmonary Embolism"

Deep venous thrombosis is the presence of blood clots, usually in the legs that lead to either local problems or breathing problems if the clot moves to the lungs. This study is designed to assess both clinical conditions as well as common genetic factors that lead to more risk of deep venous thrombosis. Clinical conditions of venous thrombosis include: stroke, malignancy, and situations such as surgery, pregnancy, trauma, or travel.

The purpose of the study COVID-EP is to classify all the complications occurring after the diagnosis of pulmonary embolism in patients tested initially COVID-19 positive and negative by RT-PCR (on nasopharyngeal sample) during the peak of the pandemic in France (April 2020). The patients will be followed for 1 year in order to provide clinical and paraclinical data not yet published in the literature. In order to secondarily confirm the COVID-19 status of initially negative COVID-19 patients (by RT-PCR), a serology test will be performed. The collected complications will then be compared between each of the 3 following groups: [PCR-COVID 19-Neg & Sero-COVID 19-Neg] versus [PCR-COVID 19-Neg & Sero-COVID 19-Pos] versus [PCR-COVID 19-Pos].

Chronic obstructive pulmonary disease (COPD) is closely related to venous thromboembolism (VTE). But it is difficult to identify VTE in COPD patients in clinical practice. Therefore, the prevalence data of PTE in COPD is limited. Pulmonary thromboembolism (PTE) is an important factor effecting patients outcomes, but existing researches only have short follow-up time less than 1 year. This study aim to develop an early detection system of PTE in COPD and explore the disease course and prognosis.

Prospective observational study evaluating serum GDF-15 levels in patients with acute pulmonary embolism.

Prevention and Prophylaxis (Thromboprophylaxis - ACT) of Cancer Associated Thrombosis (CAT) in High Risk Oncology Patients: ACT4CAT.

Usage of a guideline-compliant SOP in each chest pain unit (CPU) is instrumental in establishing the diagnosis of a pulmonary embolism without time delay. With the integration of this SOP as a "clinical decision tool" (CDT) into the electronic database of the CPU, the standardized application of the pulmonary embolism SOP in the clinical routine of the CPU will be tested using a retro- and prospective approach.

The objective of the "anticoagchoice" study is to analyze the preferences of people suffering from phlebitis, in terms of anticoagulant, to improve adherence to these treatments, to adapt the medical prescriptions.

This clinical trial is destinated to evaluate if the periodic screening for deep venous thrombosis by ultrasound of lower extremity in patients with intensive care unit (ICU) patients with COVID 19 impacts on mortality, ICU stay and total lenght of stay in the hospital, along with other outcomes.

Acute dyspnea and chest discomfort are common complaints. Distinguishing between the entities that may present with such symptoms can be difficult. This project aims to study - venous thromboembolism (VTE) - a difficult diagnosis that can easily be missed yet its treatment is highly effective. VTE represents a spectrum of disease ranging from deep vein thrombosis to pulmonary embolism (PE). Early diagnosis of PE is usually based on suspicion raised by clinical symptoms combined with a medical history of obvious predisposing factors. However, in around 30% of cases PE occurs in the absence of any predisposing factors. Individual clinical signs and symptoms are neither sensitive nor specific. PE is generally associated with hypoxaemia, but up to 20% of patients with PE have a normal arterial oxygen pressure .Classic ECG changes are generally associated with the more severe forms of PE. Bio-markers such as Plasma D-dimer (DD) have been investigated extensively in recent years. It has been shown that a normal DD level renders acute PE or DVT unlikely; on the other hand DD is not useful for confirming VTE. CT angiography(CTA) has become the method of choice for imaging the pulmonary vasculature for suspected PE. Yet as in DD the pre-test probability of PE based on the clinician's abilities highly affects the results of the CT. While VTE is a fairly common and sometimes lethal condition its diagnosis is difficult and based more on clinical hunches than on highly sensitive and specific diagnostic tools. It's quite evident that finding a novel, sensitive and even more importantly specific biomarker for PE would change the current approach and work-up needed for reaching a diagnosis. We propose using serum levels of surfactant associated protein (SAP) as such a bio-marker. Surfactant is a unique phospholipoprotein secreted solely by type II alveolar cells in the lungs. About 90% of the surfactant structure is composed of phospholipids and the remaining 10% is composed of specific proteins. Working hypothesis and aims: PE causes ischemic damage to lung tissue. Such damage will ultimately lead to a rise of serum SPA. The primary objective of this project is to ascertain the fact that indeed there is a rise of serum SPA among patients diagnosed with PE, what is the time-concentration profile of such rise and is the rise correlated to the size of the embolus. Methods: The study will be designed as a prospective study consisting of several steps. The measurement of serum SPA will be done by commercially available ELISA kits. All patients will be enrolled by researchers from both the ER and internal B ward at the Rambam Medical Center. Probable implications to Medicine: If indeed SPA levels will be proven to be a novel bio-marker for PE this could ultimately lead to a totally different approach in the classification and treatment of patients presenting with signs that may be associated with PE.

This is a prospective, observational, multicenter study. The primary aim of the study is to assess the accuracy of spiral CT scan to detect right ventricular dysfunction as compared to current 'gold standard'in patients with pulmonary embolism. At the purpose of this study right ventricular dysfunction as assessed by transthoracic echocardiography and serum levels of troponin are considered as gold standard. The secondary aim of the study is to assess the prognostic value of right ventricular dysfunction as assessed by spiral CT scan.