Tags Archives: hemolysis

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Accelerated Hemocompatibility Testing of Rotary Blood Pumps

Abstract Ex vivo hemocompatibility testing is a vital element of preclinical assessment for blood-contacting medical devices. Current approaches are resource intensive; thus, we investigated the feasibility of accelerating hemocompatibility testing by standardizing..

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Effect of flow rate ratio and positioning on a lighthouse tip ECMO return cannula

Abstract Extracorporeal membrane oxygenation is a life-saving support therapy in the case of cardiopulmonary refractory failure. Its use is associated to complications due to the presence of artificial surfaces and..

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The Disconnect Between Extracorporeal Circulation and the Microcirculation: A Review

Abstract Extracorporeal circulation (ECC) procedures, such as cardiopulmonary bypass (CPB) and extracorporeal membrane oxygenation (ECMO), take over the function of one or more organs, providing clinicians time to treat underlying pathophysiological..

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Fatigue of red blood cells under periodic squeezes in ECMO

Abstract Hemolysis usually happens instantly when red blood cells (RBCs) rupture under a high shear stress. However, it is also found to happen gradually in the extracorporeal membrane oxygenation (ECMO)..

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Hemolysis in patients with Extracorporeal Membrane Oxygenation therapy for severe Acute Respiratory Distress Syndrome - a systematic review of the…

Abstract The Acute Respiratory Distress Syndrome (ARDS) is common in patients on the Intensive Care Unit and associated with significant mortality rates. In situations of severe respiratory insufficiency and failure..

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Hemolysis during Pediatric Extracorporeal Membrane Oxygenation: Associations with Circuitry, Complications, and Mortality

Abstract Objective: To describe factors associated with hemolysis during pediatric extracorporeal membrane oxygenation (ECMO), and the relationships between hemolysis, complications and mortality. Design: Secondary analysis of data collected prospectively by..

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Potential Factors for Poor Reproducibility of In Vitro Hemolysis Testing

Abstract In vitro testing of hemolysis is essential for the validation and development of ventricular assist devices. However, as many factors influence hemolysis, such tests’ inter- and intralaboratory reproducibility is poor...

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Association Between Hyperoxemia and Increased Cell-Free Plasma Hemoglobin During Cardiopulmonary Bypass in Infants and Children

Abstract OBJECTIVES:  To determine potential risk factors for severe hemolysis during pediatric cardiopulmonary bypass and examine whether supraphysiologic levels of oxygen and cardiopulmonary bypass duration are associated with hemolysis. DESIGN: ..

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A retrospective analysis of the hemolysis occurrence during extracorporeal membrane oxygenation in a single center

Abstract Introduction Extracorporeal membrane oxygenation (ECMO)–associated hemolysis still represents a serious complication. The present study aimed to investigate those predictive factors, such as flow rates, the use of anticoagulants, and..

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Surgically Implanted Impella Device for Patients on Impella CP Support Experiencing Refractory Hemolysis

Abstract The Impella CP (Abiomed Inc., Danvers, MA) is widely used in cardiac catheterization laboratories for patients presenting with cardiogenic shock, but it is also known to cause significant hemolysis. The risk..

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The Disconnect Between Extracorporeal Circulation and the Microcirculation

Abstract Extracorporeal circulation (ECC) procedures, such as cardiopulmonary bypass (CPB) and extracorporeal membrane oxygenation (ECMO), take over the function of one or more organs, providing clinicians time to treat underlying..

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Automated and cost-efficient early detection of hemolysis in patients with extracorporeal life support: Use of the hemolysis-index of routine clinical…

Abstract Purpose Patients with  (ECLS) are at risk for hemolysis-related complications. Therefore, monitoring of free hemoglobin (fHb) levels is indicated. Conventional methods for fHb are laborious and not always available. Here..

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Magnetic levitation pump versus constrained vortex pump: a pilot study on the hemolysis effect during minimal invasive extracorporeal circulation

Abstract Background Elevated plasma free hemoglobin is associated with multi-organ injury. In this context, minimally invasive extracorporeal technologies represent a way to reduce this complication following cardiac surgery. Methods We..

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Flow characteristics and hemolytic performance of the new Breethe centrifugal blood pump in comparison with the CentriMag and Rotaflow pumps

Abstract Blood pumps have been increasingly used in mechanically assisted circulation for ventricular assistance and extracorporeal membrane oxygenation support or during cardiopulmonary bypass for cardiac surgery. However, there have always..

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The Optimal Cell Salvage Settings to Maximize Hematocrit and Minimize Potassium Using the Cobe BRAT2 Autologous Blood Recovery Unit

Abstract Objective The objective was to determine the optimal cell saver device settings (infusion rate and wash rate) at which hematocrit is preserved and potassium and lactate are removed from..

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Perioperative Serum Free Hemoglobin and Haptoglobin Levels in Valvular and Aortic Surgery With Cardiopulmonary Bypass: Their Associations With Postoperative Kidney…

Abstract Highlights • Hemolysis due to CPB leads to an increase of serum free Hemoglobin(fHb) level. • Increase of serum fHb level had an independent association with postoperative AKI. •..

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Carboxyhemoglobin Elevation, a Marker for Hemolysis, Is Common in Veno-venous Extracorporeal Membrane Oxygenation

Abstract Giani et al. found low levels of carboxyhemoglobin (COHb) in a cohort of patients supported on veno-venous extracorporeal membrane oxygenation (VV ECMO) at their center. It is noteworthy that even on..

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Hemodilution Increases the Susceptibility of Red Blood Cells to Mechanical Shear Stress During In Vitro Hemolysis Testing

Abstract The American Society for Testing and Materials (ASTM) F1841 standard for the assessment of hemolysis in blood pumps recommends using phosphate-buffered saline (PBS) for hemodilution to standardize hematocrit (HCT)...

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Dynamics of Blood Flows in Aortic Stenosis: Mild, Moderate, and Severe

Abstract Supraphysiologic high shear stresses created in calcific aortic stenosis (AS) are known to cause hemostatic abnormalities, however, the relationship between the complex blood flows over the severity of AS..

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Performance characteristics of the new Eurosets magnetically suspended centrifugal pump

Abstract Objective: The aim was to evaluate the performance of a newly developed magnetically suspended centrifugal pump head intended for use as a ventricular assistance device with a newly developed..

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Platelet, Red Cell, and Endothelial Activation and Injury During Extracorporeal Membrane Oxygenation

Abstract Extracorporeal membrane oxygenation (ECMO) can be lifesaving but suffers from high rates of bleeding and repeated transfusions. Current monitoring of blood cell damage during ECMO is limited to platelet..

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Unexplained hemolysis in patients undergoing ECMO: beware of hypertriglyceridemia

Abstract Hemolysis is a common complication of extracorporeal membrane oxygenation (ECMO) support and is associated with increased mortality. Frequent monitoring of markers of hemolysis is performed at ECMO centers. We..

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Hemolytic characteristics of three suctioning systems for use with a newly developed cardiopulmonary bypass system

Abstract Introduction: We have been developing a closed-circuit cardiopulmonary bypass (CPB) system (“Dihead CPB”) for application during coronary artery bypass grafting (CABG) and valve surgery. To strive for minimal hemolysis..

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Hemolytic characteristics of three suctioning systems for use with a newly developed cardiopulmonary bypass system

Abstract Introduction: We have been developing a closed-circuit cardiopulmonary bypass (CPB) system (“Dihead CPB”) for application during coronary artery bypass grafting (CABG) and valve surgery. To strive for minimal hemolysis..

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Hemolytic characteristics of three suctioning systems for use with a newly developed cardiopulmonary bypass system

Abstract Introduction: We have been developing a closed-circuit cardiopulmonary bypass (CPB) system (“Dihead CPB”) for application during coronary artery bypass grafting (CABG) and valve surgery. To strive for minimal hemolysis..

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Hemolysis-mediated Toxicity during Cardiopulmonary Bypass Ameliorated by Inhaled Nitric Oxide Gas

Abstract In a randomized clinical trial in China of 244 adults undergoing elective, multiple valve replacement surgery, Lei and colleagues administered 80 parts per million nitric oxide (NO) gas during..

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Nitric Oxide Decreases Acute Kidney Injury and Stage 3 Chronic Kidney Disease after Cardiac Surgery

Abstract Acute kidney injury (AKI) is a common and serious complication of cardiac surgical procedures that require prolonged (>90 min) cardiopulmonary bypass (CPB) (, ). Although the presence of AKI after..

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Improving hemolysis levels associated with cardiotomy suction

Abstract Background: The major source of hemolysis during cardiopulmonary bypass (CPB) remains the cardiotomy suction.1 Previous research has shown that the combination of negative pressures and the massive air-blood interface exponentially..

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Clinical and In Vitro Evidence That Subclinical Hemolysis Contributes to LVAD Thrombosis

Background Recent data suggest that  contributes to  (LVAD) , but the mechanism is unknown. In a clinical study, we measured plasma free hemoglobin (pfHgb) and the incidence of LVAD thrombosis. In an in..

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Switching to Centrifugal Pumps May Decrease Hemolysis Rates Among Pediatric ECMO Patients

Abstract Recent advances in ECLS technology have led to the adoption of centrifugal pumps for the majority of patients worldwide. Despite several advantages of centrifugal pumps, they remain controversial because..

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