Active clinical trials for "Thrombosis"

The study T2HD "Thrombosis and Haemorrhage in chronic hemodialysis patients" is a study of pharmacoepidemiology observational, retrospective cohort, multicenter including 12 dialysis centers for adults Lorraine. The main objective is to : Describe the prescribing practices of drugs anticoagulants and antiplatelet agents in chronic hemodialysis patients in the Lorraine region. The second objective is to : Study the impact of these practices on the survival and the occurrence of major clinical events, thrombotic and hemorrhagic.

Most important peripherally inserted central catheter (PICC) and Midline complications are thrombosis and catheter related blood stream infections. No large prospective observational study are present in literature about these topics. The aim of this multicenter prospective observational study is to analyze all the complications due to PICC and Midline insertion.

This study is to further develop and optimise the design and manufacturing process of a handheld device to monitor and manage Warfarin (blood thinning anticoagulation drug) therapy. The device comprises of a handheld instrument and a disposable test strip and reports how blood coagulation is working in terms of standardised units called International Normalised Ratio (INR). A single drop of fresh whole blood and plasma will be added to the strip and the INR result displayed on the instrument. Blood samples are to be collected from patients attending a hospital based INR clinic who are on Warfarin Therapy. The samples are to be used in a series of experiments in the laboratory to test the Microvisk POC INR Monitors accuracy, precision, stability and robustness.

The purpose of this study is to compare the difference in thrombosis as a result of internal jugular (IJ) catheters versus peripherally inserted central catheter (PICC) lines. It is hypothesized that there will be a decreased rate of thrombosis in patients as a result of IJ catheters verses PICC lines.

Cancer patients are at increased risk of deep venous thrombosis and pulmonary embolism, collectively termed venous thromboembolism (VTE). Risk assessment scores for VTE in cancer patients have been previously developed by the groups of Khorana and Vienna CATS. However, routine thromboprophylaxis for ambulatory cancer patients based on these scores is currently not recommended. In the investigators prospective, observational cohort study, the investigators aim to identify cancer patients at high risk for VTE based on clinical characteristics, coagulation biomarkers and the coagulant activity of tissue factor bearing microparticles.

Numerous studies have demonstrated excellent diagnostic accuracy of Compression Ultrasonography (CUS) performed by hospitals doctors, skilled and unskilled in Radiology. Recently, it was demonstrated that adequately ultrasonography-trained General Practitioners (GP) can perform reliable ultrasound to increase the speed and improve the quality of clinical management of various clinical conditions. To date, in the medical literature there are no studies that demonstrate the diagnostic accuracy of GP in performing CUS for the diagnosis of Deep Vein Thrombosis (DVT). Therefore, we plan to perform a prospective, multicenter, cohort study in which a large number of consecutive outpatients with symptoms or signs of DVT are subject to the CUS by the GP with the aim of evaluating the precision and the diagnostic accuracy compared to specialists in vascular ultrasound, which in this case will be the standard of reference.

The primary objective of this study is to demonstrate that plasma concentrations of nucleosomes and free DNA differ between three groups: pregnant patients with complications typical of placental insufficiency or venous thrombosis (group P), healthy women (Group T1) and healthy pregnant women (Group T2).

Obesity if a health endemic problem over the entire world. Bariatric surgery is the best chance for those patients with morbid obesity to loss weight and to maintain the loosed weight. Metabolic surgery is the new name for bariatric surgery like sleeve gastrectomy and gastric by pass due to the recognized changes in the homeostasis of the hormonal secretion responsive to the hunger status. After sleeve gastrectomy we observe many patients with thrombus of the portal vein system. This phenomena may be attributed to changes in the portal flow due to devascularization of the great curvature of the stomach. The aim of the study is to compare the portal flow by intra-operative Doppler ultrasound before and after surgery of the two procedures as sleeve gastrectomy and gastric bypass, were the vascularization is not changed by the surgery.

Many drug interactions with Warfarin are well documented in the literature, including interactions with a variety of antibiotics. However,in mamy cases it is difficult to predict when the interaction remains theoretical and when it becomes clinically significant and will be reflected in the individual patient. This study's aim is to identify and characterize related conditions (including comorbidities, laboratory test results and other parameters related to the patient)that might be predictors for drug interactions turning from theoretical to clinically significant.

To establish the overall agreement of the MassPLEX Factor II and Factor V Leiden Genotyping Test with bi-directional DNA sequencing for Factor II and Factor V Leiden.