Abstract Background: Andexanet alfa, a Gla-domainless mutant factor Xa (GDXa), reverses oral FXa inhibitors but can cause severe heparin resistance during cardiopulmonary bypass (CPB). Antithrombin (AT) supplementation may mitigate this..
Read MoreAbstract Background and Aims To date, thromboelastometry has not been investigated as an assay to monitor profound heparin anticoagulation, such as is required for a safe cardiopulmonary bypass (CPB). The..
Read MoreAbstract Background Controversies exist in anticoagulation practices in extracorporeal membrane oxygenation (ECMO). It is uncertain whether the intensity of anticoagulation affects ECMO outcomes. Objectives To conduct a meta-analysis to determine..
Read MoreAbstract This chapter provides an overview of heparin, including discovery, structure, mechanism of action, and principal use for anticoagulation. For over 100 years, heparin has a central role in prophylaxis..
Read MoreAbstract The activated partial thromboplastin time (APTT) assay is essential for evaluating coagulation. However, prolonged APTT may result from pathological conditions or contamination with unfractionated heparin (UFH), which can occur..
Read MoreAbstract Background: Unfractionated heparin (UFH) is the standard anticoagulant during cardiopulmonary bypass (CPB). A clinically relevant subset develops heparin resistance (HR)—failure to reach adequate anticoagulation with usual UFH—raising thrombotic risk..
Read MoreAbstract Heparin is the primary anticoagulant used for cardiopulmonary bypass and requires reversal to prevent postoperative bleeding. Protamine sulfate is the only United States Food and Drug Administration–approved heparin reversal..
Read MoreAbstract Background: Unfractionated heparin (UFH) is the standard anticoagulant during cardiopulmonary bypass (CPB). A clinically relevant subset develops heparin resistance (HR)—failure to reach adequate anticoagulation with usual UFH—raising thrombotic risk..
Read MoreAbstract Unfractionated heparin has long been the conventional anticoagulant for pediatric mechanical circulatory support (MCS). As bivalirudin has gained traction in ventricular assist devices (VAD) management, its role in extracorporeal..
Read MoreAbstract Transfusion management during cardiac surgery is commonly guided by algorithms using viscoelastic tests such as Rotational Thromboelastometry (ROTEM). Recently, the ROTEM Sigma, a new device developed as a fully..
Read MoreAbstract Objective Overdiagnosis occurs when abnormalities meeting diagnostic criteria would remain asymptomatic if undiagnosed. Cases initially identified through digital diagnostic tools but later recognised as overdiagnosis are referred to as..
Read MoreAbstract Extracorporeal membrane oxygenation (ECMO) is a mechanical circulatory and respiratory support system that facilitates gas exchange and hemodynamic stabilization through an external circuit. ECMO has been increasingly utilized for..
Read MoreAbstract Objectives Residual heparinization is a preventable cause of coagulopathy following cardiac surgery. The aim of this work was to assess the proportion of patients with residual heparinization following cardiac..
Read MoreAbstract Background: In cardiac surgery, protamine is used to reverse the effects of heparin after separation from cardiopulmonary bypass (CPB). Excess of protamine has been demonstrated to cause platelet dysfunction and..
Read MoreAbstract In blood extracorporeal circulations such as hemodialysis (HD) and extracorporeal membrane artificial lung (ECMO) during the surgical operation, the real-time and noninvasive prediction of heparin concentration c is necessary over the..
Read MoreAbstract Objectives The detection of low-range heparin activity is important to correctly assess heparin reversal and rebound, especially after cardiopulmonary bypass. Current parameters are either not available at point-of-care (anti-Xa..
Read MoreAbstract Introduction The recently recommended activated clotting time (ACT) to be maintained at the initiation of and during cardiopulmonary bypass (CPB) is ≥480 s. However, the post-unfractionated heparin (UFH) administration ACT..
Read MoreAbstract Introduction There is no consensus on the dose of heparin to be used intraoperatively in cardiac myxomas, so the goal of this study was to look into the differences..
Read MoreAbstract The term heparin resistance is likely best defined as the failure of an appropriate dose of unfractionated heparin (UFH) to achieve a predetermined level of anticoagulation. Unfortunately, and despite..
Read MoreAbstract Objectives: To test feasibility of a randomized controlled trial (RCT) with an endpoint of time at goal anticoagulation in children on extracorporeal membrane oxygenation (ECMO) randomized to receive bivalirudin..
Read MoreAbstract Background Drug shortages are a frequent challenge in current clinical practice. Certain drugs (e.g., protamine) lack alternatives, and inadequate supplies can limit access to services. Conventional protamine dosing uses..
Read MoreAbstract Background Unfractionated heparin, administered during venoarterial extracorporeal membrane oxygenation to prevent thromboembolic events, largely depends on plasma antithrombin for its antithrombotic effects. Decreased heparin responsiveness seems frequent on extracorporeal..
Read MoreAbstract Background: Patients maintained on extracorporeal membrane oxygenation (ECMO) often require systemic anticoagulation to prevent circuit clotting and systemic thromboembolic complications. The optimal intensity of anticoagulation to balance the risk..
Read MoreAbstract Recent studies suggest that heparan sulfate proteoglycans (HSPG) contribute to the predisposition to, protection from, and potential treatment and prevention of Alzheimer’s disease (AD). Here, we used electronic health..
Read MoreAbstract Case Report A 56-year-old male with a medical history significant for coronary artery disease complicated by non-ST segment elevation myocardial infarction in 2011 (at which time he received a..
Read MoreAbstract Background Heparin is used for anticoagulation during cardiopulmonary bypass. After weaning from bypass, protamine is administered to neutralize the effects of heparin and thus reestablish hemostasis. Rotational thrombelastometry has..
Read MoreAbstract Bleeding and thrombotic complications are major drivers in extracorporeal life support (ECLS) patients’ negative outcomes and are reported in up to 40% of the ECLS-runs [1, 2]. Consumptive coagulopathy..
Read MoreAbstract Background Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) Syndrome is a severe adverse drug reaction marked by delayed hypersensitivity reactions causing skin and systemic complications. DRESS diagnosis is..
Read MoreAbstract Introduction Over the past decade, there has been an increase in the use of recombinant Anti-Thrombin III (AT-III) administration during neonatal and pediatric short- and long-term mechanical support for..
Read MoreAbstract Heparins have been invaluable therapeutic anticoagulant polysaccharides for over a century, whether used as unfractionated heparin or as low molecular weight heparin (LMWH) derivatives. However, heparin production by extraction..
Read More












