View clinical trials related to Blood Coagulation Disorders.
Filter by: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.
The incidence rate of drug-induced blood diseases accounts for about 10% of all drug-induced diseases, most of which are serious at the time of onset, and the mortality rate can be as high as 32.5%. In this study, cefoperazone sulbactam sodium, which is commonly used in clinic, was selected as the target drug, and the epidemiological characteristics of drug-induced coagulation dysfunction and the construction of risk factor models were studied by single factor and multiple factor Logistic regression analysis.
Objective of this study was to determine the relationship between CAC and septic condition in COVID-19 critically ill patients. Data including age, sex, comorbidities, quick Sequential Organ Failure Assessment (qSOFA) score, vasopressors requirement, laboratory findings: platelets, neutrophils, lymphocytes, procalcitonin (PCT), C-reactive protein (CRP), fibrinogen, D-dimer, sepsis-induced coagulopathy (SIC) and disseminated intravascular coagulation (DIC) score were recorded on the day of admission and on the day of starting of invasive mechanical ventilation. Primary outcome was to establish CAC with sepsis; secondary outcome measure was incidence of CAC in sepsis and septic shock in COVID-19 critically ill patients.
This is a prospective, single-center, controlled, open label, trial randomized in two parallel groups designed to assess the Quantra QStat System in trauma patients.
Congenital heart surgery on cardio-pulmonary bypass (CPB) is associated with impacted coagulation quality and increased bleeding after separation of CPB. The current testing device used at our institution is the "TEG 5000" (Haemonetics Corporation). The novel coagulation testing device "Quantra System" (Hemosonics) has favorable properties (result within 20 minutes) allowing for a quicker identification of the coagulation problem and hence faster administration of the correct coagulation products, potentially leading to better coagulation quality and possibly reducing the need of additional blood products. The aim of this prospective observational (non-interventional, investigational only) quality improvement study is to investigate if the Quantra is reliable and valid in predicting the coagulation status when compared with our standard-of-care device TEG 5000.
This is a single center prospective observational study to compare QPlus parameter measurements in arterial and venous blood samples collected in parallel from patients undergoing cardiac surgery.
Chamomile may possess anticoagulant effects based on the presence of coumarin-like compounds within the flower. This randomized complete crossover study will investigate the impact of chamomile ingestion acutely on coagulation.
The aim of this ex-vivo study is to quantify the effect of tramadol on platelet aggregation.
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.
The investigators try to improve the screening of bleeding disorders in children by identifying symptoms, laboratory abnormalities and clinical scores discriminating patients congenital bleeding disorders in order to create a simple screening algorithm applicable in pediatrics, aiming for use in pre-anesthetic consultation and in consultation by pediatricians and general practitioners.