Active clinical trials for "Embolism"

Retinal emboli is a common phenomenon in cardiac catheterization. In this study the investigators evaluate the incidence of retinal emboli post diagnostic and therapeutic cardiac catheterization over 300 patients. The incidence was 6.3% and had no clinical sequel on visual acuity and visual field.

The aim of the study is to determine the diagnostic accuracy of 99mTc ThromboView® SPECT imaging for the detection of acute pulmonary embolism (PE) in patients for whom there is a moderate to high clinical suspicion for PE.

This is a prospective comparison of clinician dosing and a pharmacogenetic algorithm in diagnosed patients requiring warfarin therapy.

To evaluate the sensitivity and specificity of two major, widely used technologies, radionuclear imaging (ventilation-perfusion scanning) and pulmonary angiography, for the diagnosis of pulmonary embolism.

This is a randomized-controlled open-label trial comparing two different doses of low-molecular-weight heparin (LMWH) in pregnant patients with a history of previous venous thromboembolism (VTE). Both doses are recommended doses in the 2012 guidelines of the American College of Chest Physicians (ACCP), but it is not known which dose is more efficacious in preventing recurrent venous thromboembolism in pregnancy. Patients enter the study and will be randomized as soon as a home test confirms pregnancy. LMWH will be administered until 6 weeks postpartum. Follow-up will continue until 3 months postpartum. Patients will be recruited by their treating physician, either an obstetrician or internist.

Pulmonary embolism (PE) is a diagnostic and therapeutic challenge. The risk of death of untreated PE is approximately 25%. On the other hand, anticoagulant treatment is associated with a haemorrhagic risk (2% of major haemorrhagic accidents per year, of which 10% are fatal). A diagnostic accuracy is therefore necessary. Two approaches are available to diagnose PE: A functional approach, represented by pulmonary ventilation / perfusion scintigraphy (V / P), which looks for the functional consequences of PE. The main disadvantage of this approach is that there is a high rate of non-diagnostic examinations. On the other hand, it allows a mapping of pulmonary perfusion at the microcapillary scale, and thus allows the quantification of the vascular obstruction index, which would be an independent risk factor of PE recurrence. A morphological approach, represented by CT pulmonary angiography (CTPA), which allows the visualisation of the clot itself. This approach is currently the most used but has some limitations, including a risk of over-diagnosis of pulmonary embolism and the inability to reliably quantify the index of vascular obstruction. Lung subtraction iodine mapping CT is a new technique allowing, during the realization of a CTPA, without additional irradiation, to provide a mapping of the iodine. This mapping of iodine could potentially be used to evaluate pulmonary perfusion. It would then be possible to obtain, during a single examination, in addition to the anatomical information of the thoracic angioscan, information on the pulmonary perfusion and thus to assess the functional consequences of PE. No study to date has evaluated the performance of the pulmonary subtraction CT for the evaluation of pulmonary perfusion in the context of acute pulmonary embolism suspicion.

Odiparcil is being studied to determine if it can prevent blood clots from forming after a total knee replacement and also to prove that odiparcil is safe.

Prospective Randomized study comparing three strategy of deairing (NO CO2 insufflation, CO2 insufflation with non specific cannula, CO2 insufflation with commercial dedicated diffuser) as regarding Time to Complete Deairing measured from declamping via TEE Echo and Neurological Events at Wake Up

The current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic is complicated by pneumonia (15 to 20% of cases) requiring hospitalization with oxygen therapy. Almost 20 to 25% of hospitalized patients require intensive care and resuscitation; half die. The main cause of death is acute respiratory distress syndrome (ARDS). However, some deaths have been linked to pulmonary embolism (PE). Recognition of PE is important because there is specific treatment to limit its own mortality. The identification of biological parameters of hemostasis predictive of thromboembolic disease is crucial in these patients. To evaluate the frequency of PE in the patients having to be hospitalized is to practice of a systematic thoracic angiography scanner in the patients having no contra-indication for its realization, as well as during hospitalization in patients deteriorating without any other obvious cause. The thromboembolic events and disturbances of the coagulation system described in patients with SARS-CoV-2 pneumonitis suggest that this viral infection is associated with an increase in the activation of coagulation contributing to the occurrence of thrombosis and especially from PE.

Scoring systems (SOFA, APACHE-II etc.) are used to estimate the mortality rates of patients treated in the intensive care unit. . In the scoring systems used, the disfunction level of the organs of the patients is measured. Blood gas analysis is routinely performed in patients whom intubated in the intensive care unit and receiving mechanical ventilation support, and the patient's treatment is optimized according to the results of the examination. The patient's mechanical ventilation settings are regulated by analyzing the Partial Arterial Carbondioxide (paCO2) value in the patient's blood gas result. The difference between the paCO2 value in the blood gas and the End-tidal Carbondioxide (EtCO2) value measured in the mechanical ventilator is 3-5mmHg in normal healthy people, while this difference is seen more in critical care patients. In critically ill patients in the intensive care unit, there is a greater increase in the difference between paCO2 and ETCO2 in cases where mortality is high, such as global perfusion disorder, shock situations, and massive pulmonary embolism, etc. In this study, it was planned to investigate the use of the difference between the paCO2 value in the blood gas taken from the patient and the ETCO2 value measured in the mechanical ventilator to predict the mortality rate of the patient.