View clinical trials related to Hemostatic Disorders.
Filter by:In this study, it was aimed to compare the frequency of new oral anticoagulants and warfarin usage, and to reveal the rates of recurrent upper gastrointestinal bleeding among patients who applied to our hospital with upper gastrointestinal bleeding
The proposed study is a prospective, observational, investigator and patient blinded study comparing the results of blood volume measurement using the FDA-cleared Daxor BVA-100 device to the Daxor BVA-200 device. Data from this study may be pooled with data from studies with similar design conducted at other sites, for the purposes of an FDA medical device submission.
The goal of this prospective cohort study is to examine circulating biomarkers before and after weight loss in patients with obesity, with or without concomitant diabetes, undergoing bariatric surgery. The main questions that are being addressed are: - Do biomarkers of hemostasis, including coagulation, fibrinolysis, and platelet function improve following surgery and if so, is that improvement more pronounced in patients with diabetes? - Do biomarkers of endothelial function and other aspects of vascular function improve following surgery and if so, is that improvement more pronounced in patients with diabetes? - Do biomarkers of inflammation, including markers of adipocyte function, improve following surgery and if so, is that improvement more pronounced in patients with diabetes? - The possible role of circulating extracellular vesicles reflecting biological functions above will also be investigated (optional) Participants will be asked to attend in total five study visits before and after surgery including a final visit at two years post-surgery. Comparisons will be performed within- as well as between groups.
INTRODUCTION Knee supports, usually made with sponge cushion, are used to protect knee joint and prevent its injury. Sponge has less elasticity and durability compared with natural rubber. To our knowledge, there has been no study regarding effectiveness of natural rubber and sponge for knee joint protection and injury prevention in children with bleeding disorders. AIMS The study aimed to compare the effectiveness and satisfaction between natural rubber and sponge knee supports for knee joint protection among children with bleeding disorders METHODS The study had three phases: 1) measurement of compression force, 2) fabrication of knee supports, and 3) a randomized crossover trial. The supports were fabricated in 4 sizes, S, M, L, and XL. They comprised two parts: body, made from stretchable cotton; and cushion (protection part), made from either natural rubber or sponge. The trial included 8 weeks of alternatively wearing natural rubber knee support and sponge knee support with a 4-week wash-out period. Numbers of knee bleeds and satisfied users were recorded.
This is a single center prospective observational study to compare QStat parameter measurements in arterial and venous blood samples collected in parallel from patients undergoing liver transplantation.
A cross-sectional study will be conducted, which will include 80 young patients with psoriasis, aged 30-45 years, treated with five different types of antipsoriatic treatment, and 20 healthy patients. All 100 subjects will be subjected to anthropometric measurements, blood will be collected for laboratory tests, and an imaging test will be performed to determine the function of the endothelium and arterial stiffness. The results will then be statistically analyzed.
Hip fractures are common in elderly patients, and require surgery. Many elderly patients take anticoagulants for vasculopathy treatment. Anticoagulation precludes the use of neuraxial anesthesia because of the risk of epidural bleeding. Caudal anesthesia may be a safe and effective technique in anticoagulated emergency surgical patients. Quantitative analysis of prospective clinical data. Evaluation of caudal anesthesia efficacy for hip fracture surgery. Analysis of perioperative outcome, and postoperative course.
Liver resection is the treatment of choice in patients with primary or metastatic liver neoplasms, benign liver neoplasms and numerous biliary diseases. In these patients, in the postoperative period,several factors can induce a transient alteration of the synthesis hepatic coagulation factors such as size of the lesion liver, underlying liver disease (e.g. malignancy), pre-existing cirrhosis, duration of both surgery and vascular clamping, and blood loss. So far, some studies have shown that conventional coagulation tests indicate a hypocoagulable state which may lead to excessive transfusions of blood products or an increased risk of thromboembolic events related to delayed initiation of thromboprophylaxis in the postoperative period. In an attempt to optimizing the state of coagulation, recently there is increased interest for viscoelastic coagulation testing (thromboelastography and rotational thromboelastometry). The results of these studies have shown that these patients often have a hypercoagulable and non hypocoagulable profile as evidenced by conventional coagulation tests. the purpose of the study is to evaluate whether the combination of coagulation tests conventional systems and new thromboelastography can increase the quality of surveillance of the coagulation state after liver surgery, in order to optimize the management of postoperative blood coagulation of these patients.
Evaluating the effect of prophylactic doses of vitamin K in preventing the adverse effect of cefoperazone/sulbactam induced coagulopathy in critically ill patients.
Objective: The risk of thrombotic complications in critical COVID-19 patients remains extremely high, and multicenter trials failed to prove the survival benefit of escalated doses of low molecular weight heparins (LMWH) in this group. The aim of this study was to develop a pharmacokinetic model of LMWH (nadroparin calcium) according to different stages of COVID-19 severity. Design: The investigators performed a prospective observational study. Patients: Blood samples were obtained from 43 COVID-19 patients that received nadroparin and were treated with conventional oxygen therapy, mechanical ventilation, and extracorporeal membrane oxygenation. Setting: The investigators recorded clinical, biochemical, and hemodynamic variables during 72 hours of treatment. The analyzed data comprised 782 serum nadroparin concentrations and 219 anti-factor Xa levels. The investigators conducted population nonlinear mixed-effects modeling (NONMEM) and performed Monte Carlo simulations of the probability of target attainment (PTA) for reaching 0.2-0.5 IU/ml anti-Xa levels in study groups. Interventions: None. Measurements and Main Results: The investigators successfully developed a one-compartment model to describe the population pharmacokinetics of nadroparin in different stages of COVID-19. Conclusions: Different nadroparin dosing is required for patients undergoing mechanical ventilation and ECMO to achieve the same targets as those for non-critically ill patients.