View clinical trials related to Hemostatic Disorders.
Filter by:We propose a prospective cohort study to assess the effect of the progesterone only contraceptive pill (minipill) on coagulation parameters known to be associated with risk of thrombosis (blood clots) in women who are at increased risk for forming blood clots. We plan to recruit women with a history of venous thromboembolism (VTE, blood clot in a vein) and women with a history of blood tests which demonstrate an increased risk of thrombosis who desire contraception. Women enrolled in this study will undergo phlebotomy (blood draw) at baseline (prior to starting the minipill), one and three months. Stored samples will be used to measure D-dimer, C-reactive protein (CRP), antithrombin (AT), factor VIII, free and total protein S, fibrinogen, von Willebrand factor (vWF) and normalized activated protein C sensitivity ratio (nAPCsr). Both groups will undergo a general physical and GYN exam prior to enrollment. This exam and the blood testing will be provided free of charge. Patients will not be prescribed the minipill after completion of the study and will be advised to consult with their primary care physician or hematologist if they wish to continue this medication.
Excessive bleeding is common after cardiac surgery. This may result in patients receiving a blood transfusion or suffering the life-threatening complication of cardiac tamponade. Tamponade is when excessive bleeding compresses the heart and prevents it from pumping properly. A major reason for the bleeding is the damage done to platelets by the cardiopulmonary bypass (CPB) machine. Often patients receive platelets and plasma from blood donors to try to reduce the bleeding post-operatively. The investigators plan to take platelets and plasma from patients before they are damaged. They would then return these 'undamaged' sequestered platelets to the patients after the bypass machine is no longer needed. Therefore, the investigators' primary question is whether platelet sequestration would reduce the bleeding problems that occur following cardiac surgery. They will evaluate bleeding problems using thromboelastography, which provides a comprehensive assessment of both how blood clots form and their strength. If sequestration reduces bleeding problems following cardiac surgery then it may reduce the chance of patients receiving blood products from donors. Although donated blood is thoroughly tested, its use does expose patients to the risk of transfusion errors, blood borne infections and reactions. Avoiding its use would be very desirable.
Investigate the validity of Hemosense System in pediatric patients on anticoagulation therapy.
This trial is conducted globally. The purpose of the trial is to evaluate that activated recombinant human factor VII (eptacog alfa (activated)) is safe and effective in severely injured trauma patients by assessing mortality and morbidity. Please note that this trial and trial F7TRAUMA-1648 (NCT00323570) have been merged.
This trial is conducted in Africa, Asia, Europe, South America and the United States of America (USA). The trial is planned to investigate the safety and efficacy of NovoSeven® in the management of post-operative bleeding in patients following cardiac surgery.