Tags Archives: activated partial thromboplastin time (aPTT)

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Detecting Heparin Contamination in Prolonged APTT with a Heparin-Resistant Solution

Abstract 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..

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Evaluation of an aPTT guided versus a multimodal heparin monitoring approach in patients on extra corporeal membrane oxygenation: A retrospective…

Abstract Introduction Bleeding and thrombotic complications are common in extracorporeal membrane oxygenation (ECMO) patients and are associated with increased mortality and morbidity. The optimal anticoagulation monitoring protocol in these patients..

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Anticoagulation in ECMO: Target Values to Reduce Hemorrhagic Complications in Adults. A Retrospective Cohort Study

Abstract The 2021 Adult and Pediatric Anticoagulation Guidelines for patients on extracorporeal membrane oxygenation (ECMO) recommend a target partial thromboplastin time (PTT) between 60 and 85 seconds when unfractionated heparin..

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Low-Range Heparin and Protamine Detection: A Single-Center Prospective Diagnostic Study

Abstract 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..

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Factors Affecting the Discrepancy Between Coagulation Times on Extracorporeal Circulation Using Unfractionated Heparin in Children and Young Adults

Abstract In unfractionated heparin (UFH) monitoring during extracorporeal circulation, the traditional measures of activated clotting time (ACT) or activated partial thromboplastin time (APTT) may diverge, confounding anticoagulant adjustments. We aimed..

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Unresponsiveness of Activated Partial Thromboplastin Time to Bivalirudin in Adults Receiving Extracorporeal Membrane Oxygenation

Abstract Activated partial thromboplastin time (aPTT) is the standard for monitoring bivalirudin but demonstrates a nonlinear response at higher drug concentrations. The objective of this study was to assess the..

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Anti-Factor-Xa and Activated Partial Thromboplastin Time Concordance and Outcomes in Adults Undergoing Extracorporeal Membrane Oxygenation: A Secondary Analysis of the…

Abstract OBJECTIVES:  To determine the concordance between activated partial thromboplastin time (aPTT) and anti-factor-Xa (anti-Xa) in adults undergoing extracorporeal membrane oxygenation (ECMO) and to identify the factors associated with discordant..

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Outcomes of heparinized adult veno-arterial extracorporeal membrane oxygenation patients managed with low and high activated partial thromboplastin time targets: A…

Abstract Introduction There are no randomized controlled trials comparing low and high activated partial thromboplastin time (aPTT) targets in heparinized adult veno-arterial (VA) extracorporeal membrane oxygenation (ECMO) patients. Our systematic..

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Predicting Therapeutic Response to Unfractionated Heparin Therapy: Machine Learning Approach

Abstract Background: Unfractionated heparin (UFH) is an anticoagulant drug that is considered a high-risk medication because an excessive dose can cause bleeding, whereas an insufficient dose can lead to a..

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