Active clinical trials for "Blood Coagulation Disorders"

To see whether our increased dosing regimen of unfractionated heparin (UF) and low molecular weight heparin (LMWH) in COVID-19 patients was effective at preventing thrombo-embolic complications. We did regular anti-Xa tests to optimise the dose of our thromboprophylaxis. Furthermore, we want to examine the time it takes to reach adequate anti-Xa levels, to determine additional risk factors and do a subgroup analysis. Lastly, we will study if there are possible complications of our thromboprophylactic therapy.

This cross-sectional pilot study will examine the blood clotting patterns in children with chronic kidney disease stages 3, 4, and 5. A total of 30 participants will be enrolled with 10 participants for each stage of chronic kidney disease. Blood specimens will be collected from each participant during a routine clinic visit, and will then be processed to evaluate blood clotting characteristics according to thrombelastography and more conventional clotting tests.

The project focuses on perioperative bleeding that requires transfusion of blood products and supplementation of intravascular volume with crystalloids and colloids. The implemented fluid therapy affects coagulation and fibrinolysis, depending on the type of fluid used in an intravenous infusion. Massive haemorrhage significantly impacts the perioperative period and postoperative quality of life and requires individualized therapy, rending the ongoing project relevant from the perspective of the patients.

The purpose of this study is evaluate the effect of prophylactic desmopressin on blood coagulation parameters and postoperative bleeding in patients undergoing valve cardiac surgery with cardiopulmonary bypass.

Severe forms of hemophilia and other constitutional bleeding disorders represent a group of rare diseases. In last decades, news therapies have dramatically increased life expectancy and joint's protection. The investigators propose to set up a single-centre, descriptive, transversal pilot study, designed for the inclusion of around thirty children from 2 to 10 years, with haemophilia or allied hereditary bleeding disorders (HBD), who were referred to the Hemophilia Treatment Center (HTC) of Marseille at diagnosis. For those children who were able to benefit from the totality or part of the device accompanying the diagnostic announcement in the past 10 years.

Background: Coagulopathy in chronic kidney disease is multifactorial. Both hypocoagulopathy and hypercoaguability are seen. Conventional tests of coagulation (CCTs) end at the formation of thrombin, and do not take into account the interaction of coagulation factors, platelets, RBC etc. By overcoming the above deficiencies, thromboelastography provides a holistic picture of blood coagulation. The present study evaluated the TEG profile of ESRD patients and compared it to CCTs and to controls. Methods: 50 ESRD patients and 50 controls were recruited for the study. Venous samples were withdrawn and platelet count, INR and fibrinogen levels were measured. Simultaneously a Thromboelastography was performed. All samples were drawn prior to initiation of dialysis.

The purpose of this study is to find out if gross motor skills of children and young adults with bleeding disorders are different from those without bleeding disorders. The investigators will use the standardized motor test the Bruininks-Oseretsky Test of Motor Proficiency, Second Edition (BOT-2 tm). The second purpose is to establish if history of joint disease secondary to bleeding affects gross motor skills. Participants and setting: Subjects will include up to 100 male youth and young adults, ages 4 to 21, recruited from the patient population of the Hemophilia Treatment Center at OHSU. A mailing that describes the study may be sent to all potential subjects who receive care through the Hemophilia Treatment Center at OHSU. Data collection will occur at either clinic visits or in the home. Information, including history of change in joint structure and synovium, from existing bleeding disorder repositories at OHSU will also be used. Design and Procedures: Research will be done using a prospective, cross-sectional study design to examine any relationship between a diagnosis of bleeding disorder and gross motor development. The gross motor ability of children and young adults with bleeding disorders who meet the inclusion criteria will be compared to sex-specific normative data from a standardized motor test. Information about age, type of hemophilia, presence of an inhibitor, type of management used, body composition, range of motion, and hand strength will also be collected through direct measurement and chart review. The information collected will be entered into a repository. A subject may choose to opt out of the repository while still participating in the research study. In addition, information from a current hemophilia repository will be compared to gross motor ability scores to determine if joint disease is related to skill level in this group of people. Proposed analyses: Two-tailed t tests and logistic regression will be used to determine if there are any significant differences.

Recently, the investigators study group showed in a mono center study that Point of Care (POC) based hemotherapy may reduce transfusion rates of allogenic blood products in perioperative care of coagulopathic cardiac surgery patients. The investigators aim to verify the obtained results by conducting this multicenter study.

This observational registry is conducted in Europe, Asia, Africa and the United States of America (USA). The purpose of the registry is to evaluate the efficacy and safety of activated recombinant human factor VII (rFVIIa) during bleeding episodes and for the prevention of bleeding during invasive procedures/surgery in patients with Glanzmann's thrombasthenia (GT) with past or present refractoriness to platelet transfusions. Attention will be directed towards complications related to thrombo-embolic events and concomitant medications especially antifibrinolytics.

This study is conducted in Europe, and North and South America. The aim of this study is to provide additional documentation of the immunogenicity, and obtain additional clinical data, of turoctocog alfa in the setting of normal clinical practise in patients previously treated with a factor VIII agent (FVIII).