Active clinical trials for "Embolism"

Endoscopic retrograde cholangiopancreatography (ERCP) is an endoscopy technique to visualize and evaluate the pancreatic and biliary systems. It has been reported that rare instances of air embolus have been found associated with the performance of an ERCP and many of these events are fatal. It is our proposal to use transthoracic echocardiography to continuously evaluate for the presence of intra-cardiac air secondary to ERCP venous air embolism and attempt to quantify the incidence of this complication and any potential patient factors that might increase the risk of this complication.

The purpose of this study is to test the hypothesis that the Günther Tulip Vena Cava Filter can be removed after a period of implantation, when implanted in patients for the prevention of pulmonary thromboembolism.

To use transcranial Doppler (TCD) ultrasound to detect stroke risk in children with sickle cell disease.

This study aims at evaluating clincal practice regarding prevention of arterial and venous thrombosis following ovarian stimulation. Secondary outcomes are : 1) to describe the incidence and risk factors of arterial and venous thrombosis in women undergoing assisted reproductive technology and 2)to identify the incidence and risk factors for ovarian hyperstimulation syndrome in these women

The purpose of this study is to evaluate the diagnostic accuracy of thoracic magnetic resonance imaging with gadolinium-enhanced, unenhanced and perfusion sequences in patients with clinically suspected acute pulmonary embolism Thoracic CT angiography (CTA) will serve as reference standard Result of MRI will not interfere with patients' management Untreated patients with negative CTA will have 3-month follow-up to verify they were free of thrombose-embolic disease

The primary purpose of this study is to evaluate the diagnostic performance of three methods for measuring right ventricular size and function including the Philips Novel RV quantification technologies (RV Heart Model volumetric analysis and Philips 2D strain) and the Upper Valley Right Ventricle Algorithm (UVRV) algorithm as compared to the gold standard of volumetric analysis via cardiac magnetic resonance imaging (CMR) in a broad patient population.

The purpose of this study is to evaluate the prevalence rate of pulmonary embolism among not anticoagulated patient older than 75 years old admitted with syncope and hospitalised in the Toulon Hospital

To investigate the incidence of pre- and early postoperative deep venous thrombosis in patients undergoing hepatobiliopancreatic surgery, as well as potential corresponding risk factors with special attention to circulating tumor cells.

Utilization of diagnostic imaging in the Emergency Department has increased dramatically over the past two decades, driven by an increased availability of advanced imaging, legal pressures to exclude serious diagnoses in low-risk patients, patient expectations, and the tendency to associate more testing with a higher quality of care. However, this rise in the use of diagnostic imaging, particularly in low-risk patients, may not be taking into account the risk of radiation exposure to patients, or the impact on finite health system resources. The objective of this project is to improve the appropriateness of CT imaging in Alberta Emergency Departments by advancing awareness of, and adherence to, evidence-based guidelines for CT imaging of patients with mild traumatic brain injury (MTBI) and suspected pulmonary embolism (PE). These two clinical scenarios have been selected because of evidence of significant variation in imaging practices across Alberta, and the robust evidence base that exists to guide CT imaging decisions such as the Canadian CT Head Rule and the Pulmonary Embolism Rule Out Criteria.

To determine if there is any difference in the effectiveness and safety outcomes of patients with NVAF newly treated with apixaban, dabigatran, rivaroxaban and vitamin K antagonists