Journal ArticleBJA Open · December 1, 2024
Neonates, infants, and children undergoing major surgery or with trauma can develop severe coagulopathy perioperatively. Neonates and infants are at highest risk because their haemostatic system is not fully developed and underlying inherited bleeding diso ...
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Journal ArticleSemin Thromb Hemost · October 2024
Historically, heparin has had the longest historical use as an anticoagulant and continues this day to be the primary therapeutic option for preventing thrombosis and thromboembolism in critically ill hospitalized patients. Heparin is also used to treat se ...
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Journal ArticleJ Thromb Haemost · October 2024
BACKGROUND: Unfractionated heparin (UFH) is used in most centers for extracorporeal membrane oxygenation (ECMO) anticoagulation. When standard doses do not achieve desired target values, heparin resistance is reported, most commonly defined as doses of UFH ...
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Journal ArticleJ Thromb Haemost · October 2024
The currently approved direct oral anticoagulants (DOACs) are increasingly used in clinical practice. Although serious bleeding risks are lower with DOACs than with vitamin K antagonists, bleeding remains the most frequent side effect. Andexanet alfa and i ...
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Journal ArticleAnn Intensive Care · September 20, 2024
The mortality rate of sepsis remains high and further increases when complicated by disseminated intravascular coagulation (DIC). Consequently, early detection and appropriate management of DIC will be helpful for the management of sepsis. Although overt D ...
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Journal ArticleJ Thromb Haemost · September 2024
During extracorporeal membrane oxygenation (ECMO) support, the high shear stress in the ECMO circuit results in increased proteolysis of von Willebrand factor (VWF), loss of VWF high-molecular-weight multimers, and impaired ability to bind to platelets and ...
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Journal ArticleBMJ Open · August 21, 2024
INTRODUCTION: Reduced thrombin generation is an important component of post cardiopulmonary bypass (CPB) coagulopathy. To replenish coagulation factors and enhance thrombin generation in bleeding surgical patients, frozen plasma (FP) and four-factor prothr ...
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Journal ArticleCurr Opin Allergy Clin Immunol · August 1, 2024
PURPOSE OF REVIEW: Perioperative anaphylaxis has historically been attributed to IgE/FcεRI-mediated reactions; there is now recognition of allergic and nonallergic triggers encompassing various reactions beyond IgE-mediated responses. This review aims to p ...
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Journal ArticleACS Nano · June 18, 2024
Disseminated intravascular coagulation (DIC) is a pathologic state that follows systemic injury and other diseases. Often a complication of sepsis or trauma, DIC causes coagulopathy associated with paradoxical thrombosis and hemorrhage. DIC upregulates the ...
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Journal ArticleSemin Thromb Hemost · June 2024
Soon after the outbreak of coronavirus disease 2019 (COVID-19), unexplained sustained fatigue, cognitive disturbance, and muscle ache/weakness were reported in patients who had recovered from acute COVID-19 infection. This abnormal condition has been recog ...
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Journal ArticleJ Thromb Haemost · June 2024
Inflammation and coagulation are critical self-defense mechanisms for mitigating infection that can nonetheless induce tissue injury and organ dysfunction. In severe cases, like sepsis, a dysregulated thromboinflammatory response may result in multiorgan d ...
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Journal ArticleJ Thromb Haemost · June 2024
Coagulopathy alongside micro- and macrovascular thrombotic events were frequent characteristics of patients presenting with acute COVID-19 during the initial stages of the pandemic. However, over the past 4 years, the incidence and manifestations of COVID- ...
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Journal ArticleJ Thromb Haemost · June 2024
Based on emerging evidence from the COVID-19 pandemic, the International Society on Thrombosis and Haemostasis (ISTH) guidelines for antithrombotic treatment in COVID-19 were published in 2022. Since then, at least 16 new randomized controlled trials have ...
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Journal ArticleBJA Open · December 1, 2024
Neonates, infants, and children undergoing major surgery or with trauma can develop severe coagulopathy perioperatively. Neonates and infants are at highest risk because their haemostatic system is not fully developed and underlying inherited bleeding diso ...
Full textCite
Journal ArticleSemin Thromb Hemost · October 2024
Historically, heparin has had the longest historical use as an anticoagulant and continues this day to be the primary therapeutic option for preventing thrombosis and thromboembolism in critically ill hospitalized patients. Heparin is also used to treat se ...
Full textLink to itemCite
Journal ArticleJ Thromb Haemost · October 2024
BACKGROUND: Unfractionated heparin (UFH) is used in most centers for extracorporeal membrane oxygenation (ECMO) anticoagulation. When standard doses do not achieve desired target values, heparin resistance is reported, most commonly defined as doses of UFH ...
Full textLink to itemCite
Journal ArticleJ Thromb Haemost · October 2024
The currently approved direct oral anticoagulants (DOACs) are increasingly used in clinical practice. Although serious bleeding risks are lower with DOACs than with vitamin K antagonists, bleeding remains the most frequent side effect. Andexanet alfa and i ...
Full textLink to itemCite
Journal ArticleAnn Intensive Care · September 20, 2024
The mortality rate of sepsis remains high and further increases when complicated by disseminated intravascular coagulation (DIC). Consequently, early detection and appropriate management of DIC will be helpful for the management of sepsis. Although overt D ...
Full textLink to itemCite
Journal ArticleJ Thromb Haemost · September 2024
During extracorporeal membrane oxygenation (ECMO) support, the high shear stress in the ECMO circuit results in increased proteolysis of von Willebrand factor (VWF), loss of VWF high-molecular-weight multimers, and impaired ability to bind to platelets and ...
Full textLink to itemCite
Journal ArticleBMJ Open · August 21, 2024
INTRODUCTION: Reduced thrombin generation is an important component of post cardiopulmonary bypass (CPB) coagulopathy. To replenish coagulation factors and enhance thrombin generation in bleeding surgical patients, frozen plasma (FP) and four-factor prothr ...
Full textLink to itemCite
Journal ArticleCurr Opin Allergy Clin Immunol · August 1, 2024
PURPOSE OF REVIEW: Perioperative anaphylaxis has historically been attributed to IgE/FcεRI-mediated reactions; there is now recognition of allergic and nonallergic triggers encompassing various reactions beyond IgE-mediated responses. This review aims to p ...
Full textLink to itemCite
Journal ArticleACS Nano · June 18, 2024
Disseminated intravascular coagulation (DIC) is a pathologic state that follows systemic injury and other diseases. Often a complication of sepsis or trauma, DIC causes coagulopathy associated with paradoxical thrombosis and hemorrhage. DIC upregulates the ...
Full textLink to itemCite
Journal ArticleSemin Thromb Hemost · June 2024
Soon after the outbreak of coronavirus disease 2019 (COVID-19), unexplained sustained fatigue, cognitive disturbance, and muscle ache/weakness were reported in patients who had recovered from acute COVID-19 infection. This abnormal condition has been recog ...
Full textLink to itemCite
Journal ArticleJ Thromb Haemost · June 2024
Inflammation and coagulation are critical self-defense mechanisms for mitigating infection that can nonetheless induce tissue injury and organ dysfunction. In severe cases, like sepsis, a dysregulated thromboinflammatory response may result in multiorgan d ...
Full textLink to itemCite
Journal ArticleJ Thromb Haemost · June 2024
Coagulopathy alongside micro- and macrovascular thrombotic events were frequent characteristics of patients presenting with acute COVID-19 during the initial stages of the pandemic. However, over the past 4 years, the incidence and manifestations of COVID- ...
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Journal ArticleJ Thromb Haemost · June 2024
Based on emerging evidence from the COVID-19 pandemic, the International Society on Thrombosis and Haemostasis (ISTH) guidelines for antithrombotic treatment in COVID-19 were published in 2022. Since then, at least 16 new randomized controlled trials have ...
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Journal ArticleBr J Anaesth · June 2024
BACKGROUND: Andexanet alfa is a Gla-domainless mutant (S195A) factor Xa (GDXa) approved for acute reversal of oral factor Xa inhibitors. Cardiac surgery patients exposed to andexanet before cardiopulmonary bypass often exhibit severe heparin resistance. Th ...
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Journal ArticleAnn Intensive Care · April 24, 2024
Maintaining tissue perfusion in sepsis depends on vascular integrity provided by the endothelial glycocalyx, the critical layer covering the luminal surface of blood vessels. The glycocalyx is composed of proteoglycans, glycosaminoglycans, and functional p ...
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Journal ArticleJ Thromb Haemost · April 2024
Ensuring adequate anticoagulation for patients requiring cardiac surgery and cardiopulmonary bypass (CPB) is important due to the adverse consequences of inadequate anticoagulation with respect to bleeding and thrombosis. When target anticoagulation is not ...
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Journal ArticleMinerva Med · April 2024
Rising temperatures associated with climate change have significantly increased the risk of heatstroke. Unfortunately, the trend is anticipated to persist and increasingly threaten vulnerable populations, particularly older adults. According to Japan's env ...
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Journal ArticleMed Klin Intensivmed Notfmed · March 8, 2024
Anticoagulation is an essential component of optimal extracorporeal membrane oxygenation (ECMO) management. Unfractionated heparin is still the anticoagulant of choice in most centers due to longstanding familiarity with the agent. Disadvantages include al ...
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Journal ArticleBr J Anaesth · February 2024
This study in vitro comprehensively assessed reversal of the anticoagulant effects of rivaroxaban, an oral factor Xa inhibitor, using andexanet alfa and various prothrombin complex concentrate (PCC) products in a battery of tests. In static coagulation ass ...
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Journal ArticleJ Thromb Haemost · January 2024
Tissue microcirculation is essential for the maintenance of organ homeostasis. Following acute infections, activation of coagulation and inflammation, which are critical interconnected responses, lead to thromboinflammation and microthrombosis, thereby con ...
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Journal ArticleJ Cardiothorac Vasc Anesth · January 2024
OBJECTIVE: To evaluate the effects of droxidopa or atomoxetine on intravenous (IV) vasoactive agent discontinuation in cardiothoracic intensive care unit (ICU) patients with hypotension refractory to midodrine. DESIGN: Single-center, retrospective cohort s ...
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Journal ArticleSci Rep · December 15, 2023
Disseminated intravascular coagulation (DIC) is a frequent complication in patients with sepsis and is associated with increased mortality. Anticoagulant therapy may be appropriate for certain patients with DIC, particularly those with increased disease se ...
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Journal ArticleSci Rep · December 7, 2023
This in vitro study evaluated the potential hemostatic effect of fresh frozen plasma (FFP) ultrafiltration on clotting factors, coagulation parameters, and plasma properties. ABO-specific units of FFP (n = 40) were prepared for the concentrated FFP and cry ...
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Journal ArticleJ Thromb Haemost · December 2023
The term heparin resistance (HR) is used by clinicians without specific criteria. We performed a literature search and surveyed our SSC membership to better define the term when applied to medical and intensive care unit patients. The most common heparin d ...
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Journal ArticleJ Thromb Haemost · December 2023
Disseminated intravascular coagulation can occur due to different causes but commonly following sepsis. Trauma-induced coagulopathy (TIC) occurs on hospital arrival in approximately 25% of seriously injured patients who initially presents with impaired hem ...
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Journal ArticleThromb J · November 2, 2023
BACKGROUND: Disseminated intravascular coagulation (DIC) is a common and critical complication in sepsis. Antithrombin activity, which is considered a biomarker for disease severity, was measured in septic DIC treated with antithrombin concentrates in this ...
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ConferenceBlood · November 2, 2023
Background and Significance: Patients following cardiac surgery often develop coagulopathic bleeding and associated poor outcomes. The development of coagulopathy is multifactorial, including anticoagulation, hemorrhage ...
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Journal ArticleThromb Res · November 2023
Heat-related illness is becoming more problematic due to ongoing global warming. Heat-related injury causes systemic inflammation and coagulopathy, due to leukocyte, platelet, and vascular endothelial cell activation and injury. Hyperthermia directly modul ...
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Journal ArticleCirculation · October 24, 2023
BACKGROUND: Right ventricular failure (RVF) is a leading driver of morbidity and death after major cardiac surgery for advanced heart failure, including orthotopic heart transplantation and left ventricular assist device implantation. Inhaled pulmonary-sel ...
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Journal ArticleThromb Res · October 2023
BACKGROUND: Andexanet alfa is a Gla-domainless FXa (GDXa) analog used as an antidote to FXa inhibitors. Despite its clinical use, laboratory monitoring for anti-Xa reversal and the effect of andexanet on fibrinolysis has not been explored. We used a GDXa w ...
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Journal ArticleEur Heart J · August 22, 2023
Patients with severe infections and a pre-existing indication for antithrombotic therapy, i.e. antiplatelet agents, anticoagulant drugs, or their combinations, require integrated clinical counselling among coagulation, infectious disease, and cardiology sp ...
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Journal ArticleAnesthesiology · August 1, 2023
BACKGROUND: The administration of epinephrine after severe refractory hypotension, shock, or cardiac arrest restores systemic blood flow and major vessel perfusion but may worsen cerebral microvascular perfusion and oxygen delivery through vasoconstriction ...
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Journal ArticleCurr Opin Anaesthesiol · August 1, 2023
PURPOSE OF REVIEW: Review management strategies for patients receiving nonvitamin K direct-acting oral anticoagulants (DOACs). RECENT FINDINGS: Updated clinical trials and guidelines continue to further define optimal management for patients on DOACs requi ...
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Journal ArticleJ Thromb Haemost · July 2023
Protamine, a highly basic protein isolated from salmon sperm, is the only clinically available agent to reverse the anticoagulation of unfractionated heparin. Following intravenous administration, protamine binds to heparin in a nonspecific electrostatic i ...
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Journal ArticleJ Spec Oper Med · June 23, 2023
Coagulopathy can occur in trauma, and it can affect septic patients as a host tries to respond to infection. Sometimes, it can lead to disseminated intravascular coagulopathy (DIC) with a high potential for mortality. New research has delineated risk facto ...
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Journal ArticleJ Intensive Care · May 23, 2023
BACKGROUND: The International Society on Thrombosis and Haemostasis (ISTH) released overt disseminated intravascular coagulation (DIC) diagnostic criteria in 2001. Since then, DIC has been understood as the end-stage consumptive coagulopathy and not the th ...
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Journal ArticleAnesthesiology · May 1, 2023
Inherited and acquired coagulopathy are frequently associated with major bleeding in severe trauma, cardiac surgery with cardiopulmonary bypass, and postpartum hemorrhage. Perioperative management is multifactorial and includes preoperative optimization an ...
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Journal ArticleJ Cardiothorac Vasc Anesth · April 2023
OBJECTIVES: The objective was to compare primary hemostasis between adult ECMO patients and cardiac surgical patients before heparinization and cardiopulmonary bypass. Furthermore, the authors explored whether in vitro treatment of ECMO patient blood sampl ...
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Journal ArticleJ Cardiothorac Vasc Anesth · March 2023
OBJECTIVE: The altered pharmacokinetics of milrinone in renal impairment could result in an increased risk of cardiac arrhythmias. This study aimed to determine if there is an association between new-onset arrhythmias and renal impairment after cardiac sur ...
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Journal ArticleInflamm Res · March 2023
BACKGROUND: The number of heatstroke victims hit record numbers in 2022 as global warming continues. In heat-induced injuries, circulatory shock is the most severe and deadly complication. This review aims to examine the mechanisms and potential approaches ...
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Journal ArticleJ Thromb Haemost · March 2023
Disseminated intravascular coagulation (DIC) is not a disease criterion but a pathomechanistic process that accompanies various underlying diseases. According to the International Society on Thrombosis and Haemostasis definition, endothelial injury is an e ...
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Journal ArticleIntensive Care Med · March 2023
Coagulopathy is a severe and frequent complication in critically ill patients, for which the pathogenesis and presentation may be variable depending on the underlying disease. Based on the dominant clinical phenotype, the current review differentiates betw ...
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Journal ArticleSemin Thromb Hemost · February 2023
Although thrombosis frequently occurs in infectious diseases, the coagulopathy associated with COVID-19 has unique characteristics. Compared with bacterial sepsis, COVID-19-associated coagulopathy presents with minimal changes in platelet counts, normal pr ...
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Journal ArticleJ Thromb Haemost · February 2023
Anticoagulation of patients supported by extracorporeal membrane oxygenation is challenging because of a high risk of both bleeding and thrombotic complications, and often empirical. Practice in anticoagulation management is therefore highly variable. The ...
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Journal ArticleJ Thromb Haemost · January 2023
Disseminated intravascular coagulation (DIC) is a life-threatening complication in sepsis and other critical conditions. The International Society on Thrombosis and Haemostasis (ISTH) released the diagnostic criteria for overt DIC in 2001. Since then, ISTH ...
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Journal ArticleRes Pract Thromb Haemost · January 2023
Viscoelastic testing (VET), including thromboelastography and thromboelastometry, provides a rapid and comprehensive picture of whole blood coagulation dynamics and hemostasis that can be reviewed and evaluated at the point-of-care. This technology is over ...
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Journal ArticlePLoS One · 2023
INTRODUCTION: Hemostasis and bleeding are difficult to measure. Thrombin generation assays (TGAs) can measure both procoagulant and anticoagulant contributions to coagulation. TGAs might prove useful for the study of bleeding disorders. There has been much ...
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Journal ArticleChest · November 2022
BACKGROUND: The American College of Chest Physicians Clinical Practice Guideline on the Perioperative Management of Antithrombotic Therapy addresses 43 Patients-Interventions-Comparators-Outcomes (PICO) questions related to the perioperative management of ...
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Journal ArticleJ Thromb Haemost · November 2022
Inflammation and coagulation are the critical responses to infection that include leukocytes, platelets, and vascular endothelial cells responding in concert to eradicate the invading pathogen. In sepsis, a variety of cell surface receptors, including toll ...
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Journal ArticleChest · November 2022
BACKGROUND: The American College of Chest Physicians Clinical Practice Guideline on the Perioperative Management of Antithrombotic Therapy addresses 43 Patients-Interventions-Comparators-Outcomes (PICO) questions related to the perioperative management of ...
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Journal ArticleSemin Thromb Hemost · November 2022
Disseminated intravascular coagulation (DIC) has been understood as a consumptive coagulopathy. However, impaired hemostasis is a component of DIC that occurs in a progressive manner. The critical concept of DIC is systemic activation of coagulation with v ...
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Journal ArticleAnesth Analg · October 1, 2022
BACKGROUND: Antithrombin (AT) activity is reduced during cardiac operations with cardiopulmonary bypass (CPB), which is associated with adverse outcomes. Preoperative AT supplementation, to achieve >58% and <100% AT activity, may potentially reduce postope ...
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Journal ArticleJ Thromb Haemost · October 2022
Antithrombotic agents reduce risk of thromboembolism in severely ill patients. Patients with coronavirus disease 2019 (COVID-19) may realize additional benefits from heparins. Optimal dosing and timing of these treatments and benefits of other antithrombot ...
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Journal ArticleInt J Mol Sci · September 23, 2022
Current guidelines recommend monitoring the anticoagulant effect of unfractionated heparin (UFH) by measuring anti-Xa activity rather than activated partial thromboplastin time (aPTT) in intensive care unit (ICU) patients. The primary objective of this stu ...
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Journal ArticleJ Clin Med · August 17, 2022
Despite the increasing threat of heatstroke with global warming, pathophysiologic injury continues to be defined. In addition, morphological changes of the peripheral blood cells in heatstroke have not been well characterized. We evaluated pathophysiologic ...
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Journal ArticleTransfusion · August 2022
BACKGROUND: Screening for the risk of thromboembolism (TE) due to tranexamic acid (TXA) in patients with severe traumatic injury has not been performed in randomized clinical trials. Our objective was to determine if TXA dose was independently-associated w ...
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Journal ArticleThromb Res · August 2022
BACKGROUND: Patients treated with direct oral anticoagulants (DOACs) may require urgent procedures. Managing these patients is challenging due to different bleeding risks and may include laboratory testing, procedural delays, or haemostatic/reversal agent ...
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Journal ArticleTrends Cardiovasc Med · July 2022
Thrombosis that occurs in coronavirus disease 19 (COVID-19) is a serious complication and a critical aspect of pathogenesis in the disease progression. Although thrombocytopenia is uncommon in the initial presentation, it may also reflect disease severity ...
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Journal ArticleJ Cardiothorac Vasc Anesth · July 2022
OBJECTIVES: Despite the increasing utilization of mechanical circulatory support (MCS) devices, the 4Ts and heparin-induced thrombocytopenia (HIT) Expert Probability (HEP) scores have not been validated in patients with suspected HIT requiring MCS. DESIGN: ...
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Journal ArticleAnesthesiology · July 1, 2022
BACKGROUND: COVID-19 causes hypercoagulability, but the association between coagulopathy and hypoxemia in critically ill patients has not been thoroughly explored. This study hypothesized that severity of coagulopathy would be associated with acute respira ...
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Journal ArticleJ Cardiothorac Vasc Anesth · April 2022
OBJECTIVES: Hypothermia on intensive care unit (ICU) admission after cardiac surgery and cardiopulmonary bypass is common. It contributes to postoperative complications including shivering, coagulopathy, increased blood loss and transfusion requirements, m ...
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Journal ArticleAnn Thorac Surg · March 2022
BACKGROUND: Research evaluating hemostatic agents for the treatment of clinically significant bleeding has been hampered by inconsistency and lack of standardized primary clinical trial outcomes. Clinical trials of hemostatic agents in both cardiac surgery ...
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Journal ArticleAnesth Analg · March 1, 2022
BACKGROUND: Bleeding can be a significant problem after cardiac surgery. As a result, venous thromboembolism (VTE) or anticoagulation or both following mechanical valve implantation are often delayed in these patients. The calibrated automated thrombin (CA ...
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Journal ArticleEClinicalMedicine · February 2022
Heatstroke is increasingly becoming a significant concern due to global warming. Systemic inflammation and coagulopathy are the two major factors that provoke life-threatening organ dysfunction in heatstroke. Dysregulated thermo-control induces cellular in ...
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Journal ArticleJ Intensive Care · January 21, 2022
It is generally accepted that a coagulation/fibrinolysis disorder is involved in the pathogenesis of sepsis, and the association of disseminated intravascular coagulation (DIC) and poor outcomes have been reported. Based on these findings, recently release ...
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Journal ArticleCrit Care Med · January 1, 2022
OBJECTIVES: Vaccine-induced immune thrombotic thrombocytopenia is an unexpected consequence of the coronavirus disease 2019 pandemic era. We reviewed the pathogenesis, clinical presentation, diagnosis, and treatment of this rare side effect. DATA SOURCES: ...
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Journal ArticleThromb Haemost · January 2022
Several viral infectious diseases have emerged or re-emerged from wildlife vectors that have generated serious threats to global health. Increased international travel and commerce increase the risk of transmission of viral or other infectious diseases. In ...
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Journal ArticleTrends Cardiovasc Med · January 2022
In coronavirus disease 2019 (COVID-19), multiple thromboinflammatory events contribute to the pathophysiology, including coagulation system activation, suppressed fibrinolysis, vascular endothelial cell injury, and prothrombotic alterations in immune cells ...
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Journal ArticleJAMA Surg · January 1, 2022
IMPORTANCE: Inhaled nitric oxide (iNO) is commonly administered for selectively inhaled pulmonary vasodilation and prevention of oxidative injury after lung transplant (LT). Inhaled epoprostenol (iEPO) has been introduced worldwide as a cost-saving alterna ...
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Journal ArticleMinerva Med · December 2021
INTRODUCTION: Disseminated intravascular coagulation (DIC) has long been understood as a condition where both thrombotic and hemostatic abnormalities coexist. DIC is a difficult complication for clinicians to manage as it is due to multiple underlying comp ...
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Journal ArticleBlood Coagul Fibrinolysis · December 1, 2021
Standard biomarkers have been widely used for COVID-19 diagnosis and prognosis. We hypothesize that thrombogenicity metrics measured by thromboelastography will provide better diagnostic and prognostic utility versus standard biomarkers in COVID-19 positiv ...
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Journal ArticleArch Med Res · November 2021
The diagnostic criteria of overt disseminated intravascular coagulation (DIC) were established by the International Society on Thrombosis and Haemostasis (ISTH) in 2001. Since then, DIC has long been associated with adverse outcomes. However, recent advanc ...
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Journal ArticleAnn Surg · September 1, 2021
OBJECTIVE: To further examine anticoagulation reversal and clinical outcomes in dabigatran treated patients requiring urgent surgery or procedural interventions. BACKGROUND: Idarucizumab, a humanized monoclonal antibody fragment, reverses dabigatran antico ...
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Journal ArticleBlood Coagul Fibrinolysis · September 1, 2021
Haemorrhage during and following surgery results in increased morbidity and mortality. Low plasma fibrinogen levels have been associated with increased blood loss and transfusion requirements. Fibrinogen supplementation has been shown to reduce bleeding in ...
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Journal ArticleExpert Rev Respir Med · August 2021
INTRODUCTION: The first patients with Coronavirus disease 2019 (COVID-19) emerged at the end of 2019. This novel viral infection demonstrated unique features that include prothrombotic clinical presentations. However, one year after the first occurrence, t ...
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Journal ArticleJ Crit Care · August 2021
PURPOSE: The change in the sequential organ failure assessment (SOFA) score from the entry day, a delta-SOFA (SOFAΔ), has been proposed as a better indicator for predicting mortality, and potentially as an endpoint in clinical trials. However, there are so ...
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Journal ArticleJ Trauma Acute Care Surg · August 1, 2021
High-quality evidence guiding optimal transfusion and other supportive therapies to reduce bleeding is needed to improve outcomes for patients with either severe bleeding or hemostatic disorders that are associated with poor outcomes. Alongside challenges ...
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Journal ArticleInt J Lab Hematol · July 2021
Vascular endothelial injury is a hallmark of acute infection at both the microvascular and macrovascular levels. The hallmark of SARS-CoV-2 infection is the current COVID-19 clinical sequelae of the pathophysiologic responses of hypercoagulability and thro ...
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Journal ArticleChest · June 2021
BACKGROUND: Because of the high risk of thrombotic complications (TCs) during SARS-CoV-2 infection, several scientific societies have proposed to increase the dose of preventive anticoagulation, although arguments in favor of this strategy are inconsistent ...
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Journal ArticleJ Clin Med · April 16, 2021
Infection by SARS-CoV-2 is associated with a high risk of thrombosis. The laboratory documentation of hypercoagulability and impaired fibrinolysis remains a challenge. Our aim was to assess the potential usefulness of viscoelastometric testing (VET) to pre ...
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Journal ArticleA A Pract · March 30, 2021
The role of concurrent illness in coronavirus disease 2019 (COVID-19) is unknown. Patients with leukemia may display altered thromboinflammatory responses. We report a 53-year-old man presenting with acute leukemia and COVID-19 who developed thrombotic com ...
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Journal ArticleInt J Hematol · March 2021
Thromboembolic events contribute to morbidity and mortality in coronavirus disease 2019 (COVID-19). As a result, thromboprophylaxis using low-molecular-weight heparin (LMWH) is universally recommended for hospitalized patients based on multiple guidelines. ...
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Journal ArticleBlood Adv · February 9, 2021
Disseminated intravascular coagulation (DIC) is a pathological coagulopathy associated with infection that increases mortality. In DIC, excessive thrombin generation causes symptoms from formation of microthrombi to multiorgan failure; bleeding risks can a ...
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Journal ArticleJ Clin Med · January 7, 2021
Thrombotic events are common complications in COVID-19 patients that include both thrombus formation in large vessels and the microvasculature of the lung and other organs. COVID-19-associated coagulopathy (CAC) and disseminated intravascular coagulation ( ...
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Journal ArticleJ Thromb Haemost · January 2021
Clinical research in venous thromboembolism (VTE) is hindered by variability in the collection and reporting of data and outcomes. A consistent data language facilitates efficiencies, leads to higher quality data, and permits between-study comparisons and ...
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Journal ArticleInt J Hematol · January 2021
Disseminated intravascular coagulation (DIC) is a common and life-threatening complication in sepsis. Sepsis-associated DIC is recognized as the systemic activation in coagulation with suppressed fibrinolysis that leads to organ dysfunction in combination ...
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Journal ArticleJ Alzheimers Dis · 2021
BACKGROUND: Postoperative cognitive dysfunction (POCD), a syndrome of cognitive deficits occurring 1-12 months after surgery primarily in older patients, is associated with poor postoperative outcomes. POCD is hypothesized to result from neuroinflammation; ...
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Chapter · January 1, 2021
In patients following aortic surgery, the prevention and treatment of bleeding requires a multimodal approach that includes targeting fibrinogen and platelet repletion, the use of anti-fibrinolytic agents, and evaluating surgical sources of bleeding. Proth ...
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Journal ArticleInt J Mol Sci · December 26, 2020
(1) Background: The endothelial glycocalyx is a primary target during the early phase of sepsis. We previously reported a newly developed recombinant non-fucosylated antithrombin has protective effects in vitro. We further evaluated the effects of this rec ...
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Journal ArticleInflamm Res · December 2020
BACKGROUND: COVID-19-associated coagulopathy (CAC) characterized by the elevated D-dimer without remarkable changes of other global coagulation markers is associated with various thrombotic complications and disease severity. The purpose of this review is ...
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Journal ArticleJ Thromb Haemost · December 2020
Patients with acute leukemia frequently develop thrombocytopenia and hemostatic complications caused by coagulopathy. Coagulopathy complicates the management of these patients and can lead to significant morbidity and mortality. This guidance document aims ...
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Chapter · October 12, 2020
Anticoagulant therapies are widely used for the prevention of thrombotic events but are associated with the potential risk of bleeding as in the case of vitamin K antagonists including warfarin. The nonvitamin K oral anticoagulants (NOACs) are target speci ...
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Journal ArticleCrit Care Med · September 2020
OBJECTIVES: Recent studies have reported a high prevalence of thrombotic events in coronavirus disease 2019. However, the significance of thromboembolic complications has not been widely appreciated. The purpose of this review is to provide current knowled ...
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Journal ArticleJ Thromb Haemost · September 2020
The COVID-19 pandemic has become an urgent issue in every country. Based on recent reports, the most severely ill patients present with coagulopathy, and disseminated intravascular coagulation (DIC)-like massive intravascular clot formation is frequently s ...
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Journal ArticleJ Thromb Haemost · September 2020
Hypercoagulability is an increasingly recognized complication of SARS-CoV-2 infection. As such, anticoagulation has become part and parcel of comprehensive COVID-19 management. However, several uncertainties exist in this area, including the appropriate ty ...
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Journal ArticleJ Thromb Haemost · September 2020
BACKGROUND: Disseminated intravascular coagulation (DIC), a systemic activation of coagulation, presents with multiple clinical and laboratory manifestations. In this International Society on Thrombosis and Haemostasis (ISTH) communication, we examined the ...
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Journal ArticleCJEM · September 2020
OBJECTIVES: The management of acquired coagulopathy in multiple clinical settings frequently involves fibrinogen supplementation. Cryoprecipitate, a multidonor product, is widely used for the treatment of acquired hypofibrinogenemia following massive bleed ...
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Journal ArticleJ Intensive Care Med · July 2020
BACKGROUND: Disseminated intravascular coagulation (DIC) has been recognized as an urgent and critical condition in patients with sepsis. Therefore, unfamiliar and time-consuming tests or a complex scoring system are not suitable for diagnosis. Sepsis-indu ...
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Journal ArticleMicrocirculation · July 2020
OBJECTIVES: Hyperglycemia induces vascular dysfunction that is thought to be initiated by neutrophils. Neutrophil activation produces endothelial injury by pathways that include NETosis, a type of specific cell death. In this study, we investigated the eff ...
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Journal ArticleCrit Care · June 19, 2020
COVID-19 is an infection induced by the SARS-CoV-2 coronavirus, and severe forms can lead to acute respiratory distress syndrome (ARDS) requiring intensive care unit (ICU) management. Severe forms are associated with coagulation changes, mainly characteriz ...
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Journal ArticleCrit Care · June 18, 2020
Thrombotic complications and coagulopathy frequently occur in COVID-19. However, the characteristics of COVID-19-associated coagulopathy (CAC) are distinct from those seen with bacterial sepsis-induced coagulopathy (SIC) and disseminated intravascular coag ...
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Journal ArticleBlood · June 4, 2020
Severe acute respiratory syndrome coronavirus 2, coronavirus disease 2019 (COVID-19)-induced infection can be associated with a coagulopathy, findings consistent with infection-induced inflammatory changes as observed in patients with disseminated intravas ...
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Journal ArticleJ Thorac Cardiovasc Surg · June 2020
OBJECTIVE: In the Levosimendan in Patients with Left Ventricular Systolic Dysfunction Undergoing Cardiac Surgery Requiring Cardiopulmonary Bypass (LEVO-CTS) trial, no differences in clinical outcomes were observed between levosimendan and placebo in a broa ...
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Journal ArticleWorld Neurosurg · May 2020
The decision to restart systemic anticoagulation after surgery requires a nuanced risk-benefit analysis. The potential for surgical site bleeding must be balanced against the risk of thromboembolic events. In the context of postoperative neurosurgical pati ...
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Journal ArticleRes Pract Thromb Haemost · May 2020
BACKGROUND: There is limited information on real-world practice versus current clinical practice guidelines for oral anticoagulant reversal before emergency surgery. OBJECTIVE: To identify current practice/knowledge gaps for oral anticoagulant reversal eme ...
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Journal ArticleAnesth Analg · April 2020
BACKGROUND: Coagulopathy and hemostatic abnormalities remain a challenge in patients following trauma and major surgery. Coagulopathy in this setting has a multifactorial nature due to tissue injury, hemodilution, hypothermia, and acidosis, the severity of ...
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Journal ArticleFrontiers in Marine Science · April 1, 2020
Horseshoe crab (HSC) hemolymph is the source of Limulus amebocyte lysate (LAL), a critical component in sterility testing that ensures drug and medical device safety for millions of patients every year. Wild HSC populations have been declining as a result ...
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Journal ArticleAnesth Analg · March 2020
Hypercoagulability can occur after severe tissue injury, that is likely related to tissue factor exposure and impaired endothelial release of tissue plasminogen activator (tPA). In contrast, when shock and hypoperfusion occur, activation of the protein C p ...
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Journal ArticleSemin Thromb Hemost · February 2020
Disseminated intravascular coagulation (DIC) has been recognized as a deadly complication in sepsis, and its early recognition followed by appropriate management of the underlying infection are the current management strategies. The activation of coagulati ...
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Journal ArticleSemin Thromb Hemost · February 2020
Surgical patients, following procedural interventions or traumatic injury, often bleed due to ongoing blood loss or coagulopathy. Volume resuscitation and transfusion management are critical for the massively bleeding patient. While transfusions may correc ...
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Journal ArticleCrit Care · January 20, 2020
During extracorporeal membrane oxygenation (ECMO), a delicate balance is required to titrate systemic anticoagulation to prevent thrombotic complications within the circuit and prevent bleeding in the patient. Despite focused efforts to achieve this balanc ...
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Journal ArticleClin Appl Thromb Hemost · 2020
Bleeding and thrombosis in critically ill infants and children is a vexing clinical problem. Despite the relatively low incidence of bleeding and thrombosis in the overall pediatric population relative to adults, these critically ill children face unique c ...
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Journal ArticleFront Immunol · 2020
BACKGROUND: The hemostatic properties of tranexamic acid (TXA) are well described, but the immunological effects of TXA administration after traumatic injury have not been thoroughly examined. We hypothesized TXA would reduce monocyte activation in bleedin ...
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Journal ArticleCrit Care · August 15, 2019
Thrombomodulin plays a vital role in maintaining intravascular patency due to its anticoagulant, antiinflammatory, and cytoprotective properties. However, under pathological conditions such as sepsis and systemic inflammation, endothelial thrombomodulin ex ...
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Journal ArticleJAMA Surg · August 1, 2019
Enhanced Recovery After Surgery (ERAS) evidence-based protocols for perioperative care can lead to improvements in clinical outcomes and cost savings. This article aims to present consensus recommendations for the optimal perioperative management of patien ...
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Journal ArticleJ Clin Med · May 22, 2019
Coagulopathy commonly occurs in sepsis as a critical host response to infection that can progress to disseminated intravascular coagulation (DIC) with an increased mortality. Recent studies have further defined factors responsible for the thromboinflammato ...
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Journal ArticleVox Sang · May 2019
BACKGROUND/OBJECTIVES: Prothrombin complex concentrates (PCC) are increasingly administered off-label in the United States to treat bleeding in cardiovascular surgical patients and carry the potential risk for acquired thromboembolic side-effects after sur ...
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Journal ArticleInteract Cardiovasc Thorac Surg · April 1, 2019
OBJECTIVES: In a multicentre, randomized-controlled, phase III trial in complex cardiovascular surgery (Randomized Evaluation of Fibrinogen vs Placebo in Complex Cardiovascular Surgery: REPLACE), single-dose human fibrinogen concentrate (FCH) was associate ...
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Journal ArticleTransfusion · April 2019
BACKGROUND: Retrospective studies suggested that storage age of RBCs is associated with inflammation and thromboembolism. The Red Cell Storage Duration Study (RECESS) trial randomized subjects undergoing complex cardiac surgery to receive RBCs stored for s ...
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Journal ArticleJAMA · March 12, 2019
IMPORTANCE: Blood transfusion is one of the most frequently used therapies worldwide and is associated with benefits, risks, and costs. OBJECTIVE: To develop a set of evidence-based recommendations for patient blood management (PBM) and for research. EVIDE ...
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Journal ArticleJ Thromb Haemost · February 2019
The vascular endothelial surface is coated by the glycocalyx, a ubiquitous gel-like layer composed of a membrane-binding domain that contains proteoglycans, glycosaminoglycan side-chains, and plasma proteins such as albumin and antithrombin. The endothelia ...
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Journal ArticleBlood Coagul Fibrinolysis · January 2019
: We evaluated clinical and laboratory biomarkers of disseminated intravascular coagulation (DIC) following cardiac surgery in the cardiothoracic surgical ICU (CTICU) to predict mortality. We retrospectively analyzed CTICU patients with suspected DIC ident ...
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Journal ArticleClin Appl Thromb Hemost · 2019
The primary end point for sepsis trial is 28-day mortality. However, additional methods for determining the efficacy may have benefits. The purpose of this study was to search a useful indicator of anticoagulant therapy in patients with sepsis with dissemi ...
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Journal ArticleInt J Emerg Med · December 3, 2018
BACKGROUND: Bleeding complications are a risk associated with all anticoagulants. Currently, the treatment options for the management of direct oral anticoagulant (DOAC)-associated bleeding are limited. Prothrombin complex concentrates (PCCs) have been pro ...
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Journal ArticleAnesthesiology · December 2018
Vitamin K antagonist therapy is associated with an increased bleeding risk, and clinicians often reverse anticoagulation in patients who require emergency surgical procedures. Current guidelines for rapid anticoagulation reversal for emergency surgery reco ...
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Journal ArticleClin Appl Thromb Hemost · December 2018
For success in clinical trials, eliminating inclusion of patients with irreversible recovery is important. The purpose of this study was to identify the patient population who do not survive for more than 3 days. A total of 449 patients with sepsis suspect ...
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Journal ArticleThromb Res · November 2018
INTRODUCTION: Injury and loss of the endothelial glycocalyx occur during the early phase of sepsis. We previously showed that antithrombin has a protective effect on this structure in vitro. Here, we investigated the possible protective effects of antithro ...
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Journal ArticleCrit Care · October 27, 2018
Platelet transfusions carry greater risks of infection, sepsis, and death than any other blood product, owing primarily to bacterial contamination. Many patients may be at particular risk, including critically ill patients in the intensive care unit. This ...
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Journal ArticleClin Appl Thromb Hemost · October 2018
Disseminated intravascular coagulation (DIC) in patients with sepsis represents a critical condition. Thus, a simple and rapid diagnosis is required. The purpose of this study was to compare the performances of a recently developed Sepsis-Induced Coagulopa ...
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Journal ArticleBr J Anaesth · October 2018
BACKGROUND: We investigated potential for hypersensitivity reactions after repeated sugammadex administration and explored the mechanism of hypersensitivity. METHODS: In this double-blind, placebo-controlled study (NCT00988065), 448 healthy volunteers were ...
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Journal ArticleAnaesth Crit Care Pain Med · August 2018
The French Working Group on Perioperative Haemostasis (GIHP) and the French Study Group on Haemostasis and Thrombosis (GFHT) in collaboration with the French Society for Anaesthesia and Intensive Care Medicine (SFAR) drafted up-to-date proposals for the ma ...
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Journal ArticleNat Rev Cardiol · May 2018
The non-vitamin K antagonist oral anticoagulants (NOACs) include dabigatran, which inhibits thrombin, and apixaban, betrixaban, edoxaban, and rivaroxaban, which inhibit coagulation factor Xa. Although clinical studies of NOACs were conducted without antido ...
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Journal ArticleAnesthesiology · March 2018
Fibrinolysis is a physiologic component of hemostasis that functions to limit clot formation. However, after trauma or surgery, excessive fibrinolysis may contribute to coagulopathy, bleeding, and inflammatory responses. Antifibrinolytic agents are increas ...
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Journal ArticleJ Thromb Haemost · February 2018
The inflammatory response and the activation of coagulation are two important responses in a host's defense against infection. These mechanisms do not work independently, but cooperate in a complex and synchronous manner. Recent research has also shed ligh ...
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Journal ArticleJ Thromb Haemost · January 2018
UNLABELLED: Essentials Specific reversal agents for managing severe factor Xa inhibitor-associated bleeding are lacking. We assessed 4-factor-prothrombin complex concentrate (4F-PCC) and tranexamic acid (TXA). 4F-PCC, but not TXA, reduced the prothrombin t ...
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Chapter · January 1, 2018
Hemostasis is a critical homeostatic mechanism of survival that involves vascular, cellular, and plasma components that interact to stop bleeding. Vascular effects include vasoconstriction, expression of procoagulant factors such as tissue factor, and loss ...
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Journal ArticleVox Sang · November 2017
BACKGROUND AND OBJECTIVES: Platelet transfusions are widely administered to restore perioperative haemostasis in haemorrhagic patients; however, the role of platelet transfusion is not well understood and administration is often based on empiric data. This ...
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Journal ArticleTransfus Med Rev · October 2017
Patients who are critically ill following surgical or traumatic injury often present with coagulopathy as a component of the complex multisystem dysfunction that clinicians must rapidly diagnose and treat in the intensive care environment. Failure to recog ...
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Journal ArticleAnesth Analg · October 2017
BACKGROUND: Declining platelet counts may reveal platelet activation and aggregation in a postoperative prothrombotic state. Therefore, we hypothesized that nadir platelet counts after on-pump coronary artery bypass grafting (CABG) surgery are associated w ...
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Journal ArticleJ Cardiothorac Vasc Anesth · October 2017
Currently, hemostasis is one of the most widely researched topics in perioperative medicine. As investigators learn more about the complexity of coagulation, developing tests with the ability to rapidly monitor coagulation and guide targeted therapy is the ...
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Journal ArticleBMJ Open · September 27, 2017
OBJECTIVE: Recent clinical studies have shown that anticoagulant therapy might be effective only in specific at-risk subgroups of patients with sepsis and coagulation dysfunction. The definition of sepsis was recently modified, and as such, old scoring sys ...
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Journal ArticleN Engl J Med · August 3, 2017
BACKGROUND: Idarucizumab, a monoclonal antibody fragment, was developed to reverse the anticoagulant effect of dabigatran. METHODS: We performed a multicenter, prospective, open-label study to determine whether 5 g of intravenous idarucizumab would be able ...
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Journal ArticleVox Sang · July 2017
BACKGROUND AND OBJECTIVES: Extracorporeal membrane oxygenation (ECMO) is a method of life support for either isolated cardiac failure or respiratory failure, with or without cardiac failure. When used for hemodynamic support, the ECMO circuit presents a no ...
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Journal ArticleJ Thromb Haemost · July 2017
UNLABELLED: Essentials Reversal of anticoagulant effects of dabigatran may occur despite application of idarucizumab. Monitoring of dabigatran level after antidote application is crucial to detect rebound. Repeated doses of idarucizumab may be necessary in ...
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Journal ArticleN Engl J Med · May 25, 2017
BACKGROUND: Levosimendan is an inotropic agent that has been shown in small studies to prevent or treat the low cardiac output syndrome after cardiac surgery. METHODS: In a multicenter, randomized, placebo-controlled, phase 3 trial, we evaluated the effica ...
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Journal ArticleJ Med Econ · May 2017
AIMS: Patients treated with anticoagulants may experience serious bleeding or require urgent surgery or intervention, and may benefit from rapid anticoagulant reversal. This exploratory analysis assessed healthcare resource utilization (HCRU) in patients t ...
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Journal ArticleAnesth Analg · April 2017
Plasma products, including fresh frozen plasma, are administered extensively in a variety of settings from massive transfusion to vitamin K antagonist reversal. Despite the widespread use of plasma as a hemostatic agent in bleeding patients, its effect in ...
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Journal ArticleJ Thorac Cardiovasc Surg · December 2016
BACKGROUND: Moderate (MHCA) versus deep (DHCA) hypothermia for circulatory arrest in aortic arch surgery has been purported to reduce coagulopathy and bleeding complications, although there are limited data supporting this claim. This study aimed to compar ...
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Journal ArticleAm Heart J · December 2016
BACKGROUND: Low cardiac output syndrome is associated with increased mortality and occurs in 3% to 14% of patients undergoing cardiac surgery on cardiopulmonary bypass (CPB). Levosimendan, a novel calcium sensitizer and KATP channel activator with inotropi ...
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Journal ArticleBr J Anaesth · December 2016
Perioperative bleeding remains a major complication during and after surgery, resulting in increased morbidity and mortality. The principal causes of non-vascular sources of haemostatic perioperative bleeding are a preexisting undetected bleeding disorder, ...
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OtherAm J Med · November 2016
Patients taking direct oral anticoagulants (DOACs) who then need an emergency invasive procedure require specialized management strategies. Appropriate patient evaluation includes assessment of the current anticoagulation state, including timing of the las ...
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Journal ArticleCan J Anaesth · November 2016
PURPOSE: Postoperative cognitive dysfunction (POCD) occurs frequently after cardiac surgery. The pathophysiology of POCD remains elusive, but previous work showed that intravenous lidocaine may be protective against POCD, possibly by modulating cerebral in ...
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Journal ArticleAm J Emerg Med · November 2016
Patients taking direct oral anticoagulants (DOACs) who then need an emergency invasive procedure require specialized management strategies. Appropriate patient evaluation includes assessment of the current anticoagulation state, including timing of the las ...
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Journal ArticleCrit Care · September 23, 2016
BACKGROUND: Four nonvitamin K antagonist oral anticoagulants (NOACs) are approved for the prevention of stroke in patients with nonvalvular atrial fibrillation and for the treatment of venous thromboembolism. These include the direct thrombin inhibitor dab ...
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Journal ArticleClin Toxicol (Phila) · September 2016
CONTEXT: An overdose of oral anticoagulants represents a challenging scenario for emergency physicians. Dabigatran, an oral direct thrombin inhibitor, is increasingly used in place of warfarin. The lack of an antidote is a concern in patients who overdose ...
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Journal ArticleAnesth Analg · September 2016
BACKGROUND: The use of prothrombin complex concentrates in trauma- and surgery-induced coagulopathy is complicated by the possibility of thromboembolic events. To explore the effects of these agents on thrombin generation (TG), we investigated combinations ...
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Journal ArticleBr J Anaesth · July 2016
BACKGROUND: Single-dose human fibrinogen concentrate (FCH) might have haemostatic benefits in complex cardiovascular surgery. METHODS: Patients undergoing elective aortic surgery requiring cardiopulmonary bypass were randomly assigned to receive FCH or pla ...
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OtherAnesth Analg · May 2016
Prothrombin complex concentrates (PCCs) contain vitamin K-dependent clotting factors (II, VII, IX, and X) and are marketed as 3 or 4 factor-PCC formulations depending on the concentrations of factor VII. PCCs rapidly restore deficient coagulation factor co ...
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Journal ArticleCrit Care · April 28, 2016
Dabigatran is effective in decreasing the risk of ischaemic stroke in patients with atrial fibrillation. However, like all anticoagulants, it is associated with a risk of bleeding. In cases of trauma or emergency surgery, emergency reversal of dabigatran-i ...
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OtherThromb Haemost · April 2016
Many humoral and cellular components participate in bidirectional communication between the coagulation and inflammation pathways. Natural anticoagulant proteins, including antithrombin (AT), tissue factor pathway inhibitor, and protein C, suppress proinfl ...
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OtherSemin Thromb Hemost · March 2016
Recombinant activated factor VIIa (rFVIIa) is a prohemostatic agent initially approved for use in hemophilia patients with inhibitors and recently for Glanzmann thrombasthenia. Despite its approval indications, rFVIIa has also been used for a diverse range ...
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Journal ArticleAnesthesiology · February 2016
BACKGROUND: Cardiac surgery requiring cardiopulmonary bypass is associated with platelet activation. Because platelets are increasingly recognized as important effectors of ischemia and end-organ inflammatory injury, the authors explored whether postoperat ...
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OtherExpert Rev Hematol · 2016
Andexanet alfa is a specific reversal agent for Factor Xa inhibitors. The molecule is a recombinant protein analog of factor Xa that binds to Factor Xa inhibitors and antithrombin:LMWH complex but does not trigger prothrombotic activity. In ex vivo, animal ...
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Chapter · January 1, 2016
Anticoagulant therapies are widely used for the prevention of thrombotic events, but are associated with a risk of bleeding. The advent of the newer oral anticoagulants (NOACs) that are target specific (i.e., factor IIa or Xa inhibitors) further compounds ...
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Journal ArticleNeurochem Res · November 2015
Thrombin's role in the nervous system is not well understood. Under conditions of blood-brain barrier compromise (e.g., neurosurgery or stroke), thrombin can result in neuroapoptosis and the formation of glial scars. Despite this, preconditioning with thro ...
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Journal ArticleN Engl J Med · August 6, 2015
BACKGROUND: Specific reversal agents for non-vitamin K antagonist oral anticoagulants are lacking. Idarucizumab, an antibody fragment, was developed to reverse the anticoagulant effects of dabigatran. METHODS: We undertook this prospective cohort study to ...
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Journal ArticleThromb Haemost · July 2015
Idarucizumab, a Fab fragment directed against dabigatran, produced rapid and complete reversal of the anticoagulation effect of dabigatran in animals and in healthy volunteers. The Study of the REVERSal Effects of Idarucizumab in Patients on Active Dabigat ...
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Journal ArticlePaediatr Anaesth · June 2015
BACKGROUND: Total thrombus formation velocity calculated using amplitude parameters obtained at different times could be used to estimate the amplification and the propagation phases observed during coagulation processes, and therefore might be useful to p ...
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OtherAm Heart J · June 2015
This white paper provides a summary of presentations and discussions that were held at an Anticoagulant-Induced Bleeding and Reversal Agents Think Tank co-sponsored by the Cardiac Safety Research Consortium and the US Food and Drug Administration (FDA) at ...
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OtherBest Pract Res Clin Anaesthesiol · June 2015
The use of extracorporeal circulation requires anticoagulation to maintain blood fluidity throughout the circuit, and to prevent thrombotic complications. Additionally, adequate suppression of hemostatic activation avoids the unnecessary consumption of coa ...
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OtherCrit Care · April 29, 2015
Perioperative management of patients treated with the non-vitamin K antagonist oral anticoagulants is an ongoing challenge. Due to the lack of good clinical studies involving adequate monitoring and reversal therapies, management requires knowledge and und ...
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Journal ArticleN Engl J Med · April 9, 2015
BACKGROUND: Some observational studies have reported that transfusion of red-cell units that have been stored for more than 2 to 3 weeks is associated with serious, even fatal, adverse events. Patients undergoing cardiac surgery may be especially vulnerabl ...
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Journal ArticleJ Cardiothorac Vasc Anesth · April 2015
OBJECTIVE: High-quality prospective trials of hemostatic "rescue" therapy to control massive bleeding in cardiac surgery are lacking. Wide variability in the care of patients with severe bleeding following cardiopulmonary bypass has precluded accurate comp ...
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OtherTransfus Med Hemother · March 2015
In the last years it has become evident that the use of blood products should be reduced whenever possible. There is increasing evidence regarding serious adverse events, including higher mortality and morbidity, related to transfusions. The use of point o ...
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OtherBlood · February 26, 2015
Fibrinogen is a critical protein for hemostasis and clot formation. However, transfusion guidelines have variable recommendations for maintaining fibrinogen levels in bleeding patients. An increasing number of studies support the practice of fibrinogen rep ...
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Journal ArticleTrends in Anaesthesia and Critical Care · February 1, 2015
Uncontrollable bleeding is the major cause of possible preventable death after traumatic injury. Up to one third of patients admitted to the emergency room will develop the so-called trauma induced coagulopathy (TIC) which has been shown to be associated w ...
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OtherBr J Anaesth · December 2014
Cryoprecipitate, originally developed as a therapy for patients with antihaemophilic factor deficiency, or haemophilia A, has been in use for almost 50 yr. However, cryoprecipitate is no longer administered according to its original purpose, and is now mos ...
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Journal ArticleBlood Coagul Fibrinolysis · December 2014
Hereditary angioedema (HAE) is a rare, autosomal dominant disease in which C1 esterase inhibitor (C1 INH) is deficient or dysfunctional. Package inserts for nanofiltered C1 esterase inhibitor (C1 INH-nf) products contain warnings about thrombotic events. T ...
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OtherJACC Cardiovasc Interv · December 2014
Direct oral anticoagulants (DOACs) are approved for multiple thromboembolic disorders and provide advantages over existing agents. As with all anticoagulants, management protocols for the eventuality of bleeding are important. Randomized phase III studies ...
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Journal ArticleAnn Fr Anesth Reanim · November 2014
OBJECTIVE(S): Assess the efficacy and safety of tranexamic acid administration for the prevention and/or the treatment of postpartum haemorrhage. STUDY DESIGN: Systematic review with meta-analysis. MATERIAL AND METHODS: Systematic review of the literature ...
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Journal ArticleEur J Anaesthesiol · September 2014
BACKGROUND: Tranexamic acid is used to decrease bleeding and transfusions during cardiac surgery. However, dosing based on pharmacokinetic data to optimally inhibit fibrinolysis is unknown. With increasing concerns regarding seizures associated with higher ...
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Journal ArticleJ Thromb Haemost · September 2014
BACKGROUND: Four-factor prothrombin complex concentrates (PCCs), which contain factor II, FVII, FIX, and FX, have shown the potential to reverse the anticoagulant effect of rivaroxaban in healthy volunteers. The purpose of this study was to determine wheth ...
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OtherClin Lab Med · September 2014
New oral anticoagulants (NOACs) are increasingly replacing vitamin K antagonists and older parenteral agents in clinical practice. NOACs offer several advantages compared with standard agents, including rapid onset of action, fixed dosing, and no requireme ...
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OtherClin Lab Med · September 2014
Although the activated partial thromboplastin time, prothrombin time, and international normalized ratio are widely used in routine preoperative testing, these hemostatic tests are not reliable predictors of perioperative bleeding in patients without known ...
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Journal ArticleClin Lab Med · September 2014
New oral anticoagulants (NOACs) are increasingly replacing standard anticoagulants. These new drugs have been recently introduced in clinical practice, and specific knowledge regarding preoperative interruption, anticoagulation assessment, and reversal the ...
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OtherClin Lab Med · September 2014
Patients undergoing thoracic and cardiac procedures are at the highest risk for postoperative atrial fibrillation (POAF). POAF is associated with poor short-term and long-term outcomes, including high rates of early and late stroke, and late mortality. Pat ...
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OtherClin Lab Med · September 2014
Bleeding is a significant complication of anticoagulant therapy. With the emergence of new oral anticoagulants (NOACs; ie, direct factor IIa or Xa inhibitors), this risk is further compounded by the lack of validated reversal strategies for these agents. E ...
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Journal ArticleClin Lab Med · September 2014
This study examines the relationship between D-dimer concentration and patient age, gender, race, and renal function, and the role of D-dimer concentration as a predictor of in-hospital mortality, in a critically ill patient population. The results demonst ...
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Journal ArticleHosp Pract (1995) · August 2014
OBJECTIVE: To examine the impact of intravenous antihypertensive selection on hospital health resource utilization using data from the Evaluation of CLevidipine In the Perioperative Treatment of Hypertension Assessing Safety Events (ECLIPSE) trials. METHOD ...
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Chapter · June 3, 2014
Heparin-induced thrombocytopenia (HIT) is an immune-mediated complication of heparin adminictyation that occurs in approximately 0.5-5% of patients receiving heparin. HIT is a prothrombotic disorder that presents with a 50% decrease in platelet count and/o ...
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Journal ArticleJ Cardiothorac Vasc Anesth · June 2014
OBJECTIVE: To examine the impact of blood pressure control on hospital health resource utilization using data from the ECLIPSE trials. DESIGN: Post-hoc analysis of data from 3 prospective, open-label, randomized clinical trials (ECLIPSE trials). SETTING: S ...
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Journal ArticleAnn Thorac Surg · May 2014
BACKGROUND: Perioperative red blood cell transfusion is associated with adverse outcomes after cardiac operations. Although restrictive transfusion protocols have been developed, their safety and efficacy are not well demonstrated, and considerable variati ...
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OtherTransfusion · May 2014
Fibrinogen plays a critical role in achieving and maintaining hemostasis and is fundamental to effective clot formation. There is increasing awareness of the important role of fibrinogen as a key target for the treatment and prevention of acquired bleeding ...
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Journal ArticleAnesth Analg · April 2014
Extracorporeal membrane oxygenation (ECMO) is a method of life support to maintain cardiopulmonary function. Its use as a medical application has increased since its inception to treat multiple conditions including acute respiratory distress syndrome, myoc ...
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Book · October 22, 2013
Anaphylactic shock in the monkey. Respiratory ... Ring J, Messmer K. Incidence
and severity of anaphylactoid reactions to colloid volume substitutes. Lancet
1977 ... 336. 337. 338. 162 Anaphylactic Reactions in Anesthesia and Intensive
Care. ...
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Journal ArticleJ Thorac Cardiovasc Surg · October 2013
OBJECTIVES: Cardiac surgery with cardiopulmonary bypass frequently leads to excessive bleeding, obligating blood product transfusions. Because low factor XIII (FXIII) levels have been associated with bleeding after cardiac surgery, we investigated whether ...
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Journal ArticleThromb Res · July 2013
INTRODUCTION: Prasugrel is a thienopyridyl P2Y12 antagonist with potent antiplatelet effects. At present, little is known about its effects on thrombin generation or what strategies may emergently reverse its anticoagulant effects. In the current study we ...
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OtherAnesthesiology · June 2013
Managing patients in the perioperative setting receiving novel oral anticoagulation agents for thromboprophylaxis or stroke prevention with atrial fibrillation is an important consideration for clinicians. The novel oral anticoagulation agents include dire ...
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OtherLancet · May 25, 2013
Recent progress has been made in the identification and implementation of best transfusion practices on the basis of evidence-based clinical trials, published clinical practice guidelines, and process improvements for blood use and clinical patient outcome ...
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OtherTransfusion · May 2013
Factor XIII (FXIII) is activated by thrombin to form a transglutaminase (FXIIIa) that stabilizes clot formation by the cross-linking of fibrin monomers and antifibrinolytic proteins. Although rare, FXIII deficiency is characterized by variable bleeding man ...
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Journal ArticleJ Thorac Cardiovasc Surg · April 2013
OBJECTIVE: Coronary artery bypass grafting-related bleeding and associated transfusion is a concern with dual antiplatelet therapy in patients with acute coronary syndromes. The objective of the present study was to characterize a potential risk-adjusted d ...
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OtherAnesthesiol Clin · March 2013
Severe trauma is associated with bleeding, coagulopathy, and transfusion of blood and blood products, all contributing to higher rates of morbidity and mortality. The aim of this review is to focus on point-of-care devices to monitor coagulation in trauma. ...
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OtherCurr Opin Anaesthesiol · February 2013
PURPOSE OF REVIEW: Coagulopathy in an ICU setting is multifactorial, but newer anticoagulation agents are the potentially contributing causes. Critically ill patients may suffer from disorders because of surgery or trauma, in addition to acquired causes in ...
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Journal ArticleClin Appl Thromb Hemost · 2013
Desirudin, a subcutaneously (SC) administered direct thrombin inhibitor, is indicated for prevention of venous thromboembolic events (VTEs) after total joint replacement surgery. DESIR-ABLE (multicenter trial of desirudin for the prophylaxis of thrombosis: ...
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Journal ArticleAnesth Analg · December 2012
BACKGROUND: Platelet factor 4 (PF4) is released by activated platelets and has a strong affinity for heparin. Recombinant PF4 (rPF4) has been previously considered as an alternative to protamine for heparin reversal. However, it has been demonstrated that ...
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Journal ArticleChest · November 2012
BACKGROUND: The increased exposure to heparin products for thromboprophylaxis against VTE in hospitalized patients raises concerns for an increase in the incidence of heparin-induced thrombocytopenia(HIT). METHODS: We analyzed, among 90,875 patients expose ...
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OtherAnesth Analg · October 2012
Complement activation and the resulting inflammatory response is an important potential mechanism for multisystem organ injury in cardiac surgery. Novel therapeutic strategies using complement inhibitors may hold promise for improving outcomes for cardiac ...
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Journal ArticleAnesth Analg · August 2012
BACKGROUND: The activated clotting time (ACT) is widely used for monitoring heparin anticoagulation during cardiac surgery. Celite-based ACT values are prolonged when aprotinin is administered. MDCO-2010, a novel serine protease inhibitor, is currently bei ...
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Journal ArticleJ Am Coll Cardiol · July 31, 2012
OBJECTIVES: The objective of this study was to characterize the bleeding, transfusion, and other outcomes of patients related to the timing of prasugrel or clopidogrel withdrawal before coronary artery bypass grafting (CABG). BACKGROUND: There is little ev ...
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Journal ArticleJ Immunol Methods · July 31, 2012
Recombinant hirudins (desirudin, lepirudin) are direct thrombin inhibitors administered as anticoagulants for heparin-induced thrombocytopenia (HIT) and venous thromboembolism (VTE) prophylaxis. Although these small polypeptides are widely used, concern ex ...
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Journal ArticleJ Thorac Cardiovasc Surg · May 2012
OBJECTIVE: Ecallantide is a recombinant peptide in the same class as aprotinin that inhibits plasma kallikrein, a major component of the contact coagulation and inflammatory cascades. Therefore, ecallantide was expected to reduce blood loss associated with ...
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Journal ArticleJ Thorac Cardiovasc Surg · May 2012
OBJECTIVE: Patients recovering from cardiothoracic surgery are known to be at increased risk of heparin-induced thrombocytopenia. Postoperatively, if heparin-induced thrombocytopenia is suspected, heparin is discontinued immediately and an alternative anti ...
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OtherSemin Thromb Hemost · April 2012
Cardiac surgical patients represent a unique group of patients where coagulopathy occurs due to multiple causes besides simple hemorrhagic blood loss. Hemodilution, inflammation, and hemostatic activation while on cardiopulmonary bypass all contribute to t ...
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OtherAnesth Analg · February 2012
Fibrinogen plays several key roles in the maintenance of hemostasis. Its cleavage by thrombin and subsequent polymerization to form fibrin strands provides the structural network required for effective clot formation. During cases of acute blood loss, atte ...
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OtherCurr Opin Anaesthesiol · February 2012
PURPOSE OF REVIEW: Bleeding in a perioperative setting occurs due to multiple causes, but newer anticoagulant and antiplatelet therapies are increasingly used preoperatively. As a result, patients often can present for surgery with underlying hemostatic di ...
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Journal ArticleTransfusion · January 2012
BACKGROUND: Coagulopathy after cardiopulmonary bypass (CPB) is caused by multiple perturbations in cellular and humoral elements of coagulation. A timely and comprehensive method to evaluate hemostasis would be helpful in the management of bleeding patient ...
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Journal ArticleAnesth Analg · October 2011
BACKGROUND: Diagnosing postoperative heparin-induced thrombocytopenia (HIT) in cardiothoracic surgical patients is complicated because of the profound thrombocytopenia that occurs with cardiopulmonary bypass (CPB). CPB predisposes patients to develop a fre ...
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OtherJ Thorac Cardiovasc Surg · September 2011
Bleeding after cardiac surgery remains a significant problem, increasing both length of stay and mortality, and is caused by multiple factors including dilutional changes, ongoing fibrinolysis, and platelet dysfunction. The evaluation of coagulopathy is pr ...
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Journal ArticleJ Surg Res · August 2011
BACKGROUND: Tissue factor (TF) is an initiator of coagulation. The serine protease factor Xa (FXa) is the convergence point of the extrinsic and intrinsic components of the coagulation cascade. In addition to its hemostatic function, FXa elicits inflammato ...
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Journal ArticleJ Thorac Cardiovasc Surg · July 2011
OBJECTIVE: The previous Pexelizumab for Reduction of Infarction and Mortality in Coronary Artery Bypass Graft Surgery I (PRIMO-CABG I) trial (n = 3099) indicated that C5 complement inhibition with pexelizumab might reduce myocardial infarction (MI) and pos ...
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Journal ArticleNicotine Tob Res · July 2011
INTRODUCTION: The spread of waterpipe tobacco use among youth may be due in part to perceptions that waterpipe tobacco use is safer than other tobacco products, such as cigarettes. In two pilot studies, we sought to modify college waterpipe smokers' percei ...
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Journal ArticleAnesth Analg · July 2011
BACKGROUND: Few studies describe an association of perioperative blood pressure stability with postoperative outcome. We tested the hypothesis that systolic blood pressure (SBP) variability in patients undergoing cardiac surgery is associated with 30-day m ...
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Journal ArticleJAMA · February 9, 2011
CONTEXT: Several small studies have suggested that cardiac enzyme elevation in the 24 hours following coronary artery bypass graft (CABG) surgery is associated with worse prognosis, but a definitive study is not available. Also, the long-term prognostic im ...
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Journal ArticleThromb Res · February 2011
BACKGROUND: Increased levels of factor VIII occur as a response to vascular injury and/or inflammation, and may increase thrombotic risks. In contrast, factor VIII deficiency poses a major hemostatic challenge. The role of factor VIII in modulating hemosta ...
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OtherAnesth Analg · January 2011
Hypercoagulability, or thrombophilia, is a condition associated with an abnormally increased tendency toward blood clotting. Affected individuals are prone to developing venous or arterial thrombosis and often require thromboprophylaxis. Hypercoagulability ...
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Journal ArticleN Engl J Med · November 4, 2010
BACKGROUND: The use of recombinant activated factor VII (rFVIIa) on an off-label basis to treat life-threatening bleeding has been associated with a perceived increased risk of thromboembolic complications. However, data from placebo-controlled trials are ...
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Journal ArticleDrug Alcohol Depend · September 1, 2010
Drug addiction research requires but lacks a valid and reliable way to measure both the risk (propensity) to develop addiction and the severity of manifest addiction. This paper argues for a new measurement approach and instrument to quantify propensity to ...
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OtherAnesthesiology · September 2010
Patients undergoing surgery receive anticoagulation for perioperative thromboprophylaxis or ischemic cardiovascular disease. Because anticoagulants may also potentiate bleeding, clinicians need to understand the implications of anticoagulation in periopera ...
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Journal ArticleAnesth Analg · September 2010
BACKGROUND: Protamine sulfate is the antidote for heparin, but in excess it exerts weak anticoagulation. METHODS: We evaluated the effects of increasing protamine concentrations (0 to 24 microg/mL) on prothrombin time and diluted Russell's viper venom time ...
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Journal ArticleTransfus Apher Sci · August 2010
The question of whether storage of red blood cells (RBCs) alters their capacity to deliver oxygen and affects patient outcomes remains in a state of clinical equipoise. Studies of the changes which occur while RBCs are stored have led to several physiologi ...
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Journal ArticleThromb Haemost · June 2010
As our knowledge of the mechanisms underlying the sensation of pain continues to expand, researchers are constantly searching for novel therapeutic targets. One such novel pain pathway involves thrombin and its associated protease-activated receptor (PAR). ...
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Journal ArticleCurr Opin Anaesthesiol · June 2010
PURPOSE OF REVIEW: Patients often receive preoperative therapies that interfere with hemostasis, and can present for surgery with underlying hemostatic disorders because of pre-existing preoperative anticoagulation or antiplatelet therapy. Perioperative bl ...
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Journal ArticleJ Cardiothorac Vasc Anesth · June 2010
OBJECTIVE: The authors hypothesized that various hemostatic products may differently affect viscoelastic clot formation depending on their respective procoagulant activity and fibrinogen content. DESIGN: In vitro coagulopathy modeling using warfarin-treate ...
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Journal ArticleHaemophilia · May 2010
Activated prothrombin complex concentrates (aPCC) and recombinant activated factor VIIa (rFVIIa) are two important therapies in haemophilia patients with inhibitors and improve clot stability. We hypothesized that potential differences in procoagulant and ...
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Journal ArticleThromb Res · May 2010
BACKGROUND: Warfarin is routinely used in the prevention and treatment of prothrombotic events. During initiation of warfarin therapy levels of factor (F) VII and protein C decrease rapidly but prothrombin, FIX and FX decline much slower. Therefore, propag ...
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OtherAnesth Analg · May 1, 2010
Angioedema can result from allergic, hereditary, and acquired conditions. Hereditary angioedema (HAE) attacks are disabling at the time of occurrence and can be life threatening; they often result in hospitalization and intensive care unit admission. Altho ...
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Journal ArticleBr J Anaesth · March 2010
BACKGROUND: Fibrinolysis contributes to coagulopathy after major trauma and surgery. We hypothesized that progressive haemodilution is responsible, at least in part, for increased fibrinolytic tendency of blood clot. METHODS: The study was performed in two ...
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OtherAnesth Analg · February 1, 2010
A multidisciplinary panel consisting of experts chosen by the 2 chairs of the group representing experts in anesthesiology, blood banking, hematology, critical care medicine, and various surgical disciplines (trauma, cardiac, pediatric, neurologic, obstetr ...
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OtherCurr Opin Anaesthesiol · February 2010
PURPOSE OF REVIEW: Heparin-induced thrombocytopenia (HIT) is an important, increasingly recognized antibody-mediated complication of heparin therapy occurring in approximately 0.5-5% of patients receiving heparin for at least 5 days. HIT is a prothrombotic ...
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Journal ArticleThromb Haemost · October 2009
Bleeding following cardiac surgery involving cardiopulmonary bypass (CPB) remains a major concern. Coagulation factor XIII (FXIII) functions as a clot-stabilising factor by cross-linking fibrin. Low post-operative levels of FXIII correlate with increased p ...
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Journal ArticleBr J Anaesth · June 2009
BACKGROUND: Replacement of fibrinogen is presumably the key step in managing dilutional coagulopathy. We performed an in vitro study hypothesizing that there is a minimal fibrinogen concentration in diluted whole blood above which the rate of clot formatio ...
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Journal ArticleThromb Haemost · May 2009
The REG1 system consists of factor IXa inhibitor, RB006, an aptamer-based anticoagulant and its antidote, RB007. The optimal use of RB006 can be facilitated by understanding its effect on the formation of thrombin and fibrin, and other standard tests of co ...
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OtherAnesth Analg · May 2009
Perioperative bleeding is a major challenge particularly because of increasing clinical use of potent antithrombotic drugs. Understanding current concepts of coagulation is important in determining the preoperative bleeding risk of patients, and in managin ...
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Journal ArticleActa Anaesthesiol Scand · March 2009
INTRODUCTION: Serine proteases and their inhibitors play an important role in physiological homeostasis including neuronal activity, hemostasis, and wound healing. Tissue plasminogen activator (tPA) is involved in normal neuronal plasticity and memory form ...
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OtherAnesthesiology · November 2008
Clinicians, including anesthesiologists, surgeons, and intensivists, are frequently called on to correct coagulopathy in patients receiving oral anticoagulation therapy. Before elective surgery, anticoagulation reversal may be undertaken over several days ...
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Journal ArticleAnesth Analg · October 2008
BACKGROUND: Acute hypertension during cardiac surgery can be difficult to manage and may adversely affect patient outcomes. Clevidipine is a novel, rapidly acting dihydropyridine L-type calcium channel blocker with an ultrashort half-life that decreases ar ...
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OtherSemin Thromb Hemost · July 2008
Surgical patients represent a unique group of patients where therapeutic approaches can be preemptively administered. Pharmacologic strategies to prevent or decrease perioperative bleeding function to attenuate inflammatory responses, reduce hemostatic act ...
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Journal ArticleJ Am Coll Surg · June 2008
BACKGROUND: Randomized trials show equivocal benefit of epidural analgesia (EA) for patients undergoing abdominal operations. Partial hepatectomy is often performed using low central venous pressure anesthesia to reduce intraoperative blood loss. We examin ...
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Journal ArticleAnesth Analg · March 2008
BACKGROUND: Thromboembolic complications can occur with recombinant activated factor VII (rFVIIa) treatment in trauma and surgical patients but they are infrequent in hemophiliacs. Bleeding diathesis in these conditions is often attributed to reduced throm ...
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Journal ArticleAnesth Analg · March 2008
BACKGROUND: Antithrombin (AT) levels decrease during cardiopulmonary bypass (CPB), particularly when combined with deep hypothermic circulatory arrest (DHCA). Low AT levels might lead to imbalance of pro- and anticoagulant factors promoting systemic thromb ...
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Journal ArticleBlood Coagul Fibrinolysis · March 2008
Thrombin is a key hemostatic enzyme, which propagates its own generation by activating factors V, VIII, and XI. Sustained thrombin generation also activates thrombin-activatable fibrinolysis inhibitor (TAFI), which stabilizes fibrin clot against fibrinolys ...
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Journal ArticleAnesth Analg · March 2008
BACKGROUND: Recombinant activated factor VII (rFVIIa) is increasingly used for treating refractory bleeding after cardiac surgery. However, hemostasis also depends on coagulation factors, including fibrinogen, which stabilizes platelet plugs at sites of va ...
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OtherAnesth Analg · February 2008
During surgery, patients are exposed to multiple foreign substances including anesthetic drugs, antibiotics, blood products, heparin, polypeptides (aprotinin, latex, and protamine), and intravascular volume expanders, which have the potential to produce li ...
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Journal ArticleVascular · 2008
Despite improvements in surgical techniques, the risk for perioperative bleeding remains significant. Transfusion of allogeneic red blood cells, platelets, and hemostatic factors remains the mainstay of current therapy strategy for management of perioperat ...
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Journal ArticleThromb Res · 2008
INTRODUCTION: Warfarin and its derivatives are widely used for prevention of thrombotic incidents. Prothrombin complex concentrate (PCC) and recombinant activated factor VII (rFVIIa) have been used clinically for the acute reversal of this agent but there ...
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Journal ArticleBlood Coagul Fibrinolysis · December 2007
For intravenous anticoagulation, heparin has been the mainstay drug, but its use may be contraindicated in heparin-induced thrombocytopenia and thrombosis. Heparin alternatives including direct thrombin inhibitors are available, but clotting assays (e.g. p ...
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Journal ArticleCardiothoracic Critical Care · December 1, 2007
This new bedside manual guides you through all the practical aspects of managing patients following cardiothoracic surgery and critically ill cardiology patients. Primarily designed to use in cardiothoracic intensive care units and coronary care units, it ...
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Journal ArticleAnesth Analg · October 2007
BACKGROUND: Clevidipine is an ultrashort-acting, third-generation IV dihydropyridine calcium channel blocker that exerts rapid and titratable arterial blood pressure reduction, with fast termination of effect due to metabolism by blood and tissue esterases ...
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OtherSurgery · October 2007
Anticoagulant therapy is challenging to modern surgical practice because it complicates risks of bleeding and the need for allogeneic blood transfusions. In an aging population, there is extensive use of antiplatelet agents, and patients present for operat ...
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Journal ArticleAnesth Analg · October 2007
BACKGROUND: Coagulation tests, such as activated partial thromboplastin time and activated clotting time, are used to monitor the effects of unfractionated heparin and the direct thrombin inhibitor, bivalirudin. These tests reflect only the initial phase o ...
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OtherAnesth Analg · September 2007
Heparins are widely used in the perioperative setting. Immune heparin-induced thrombocytopenia (HIT) is a serious, antibody-mediated complication of heparin therapy that occurs in approximately 0.5%-5% of patients treated with heparin for at least 5 days. ...
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Journal ArticleActa Anaesthesiol Scand · July 2007
BACKGROUND: Peri-operative pulmonary hypertension can lead to right ventricular dysfunction and to an increase in morbidity and mortality. Altered function of the pulmonary vascular endothelium and vasoconstriction play a crucial role in the development of ...
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OtherEuropean Journal of Anaesthesiology · June 1, 2007
Background and objectives: The main aim of this review is to summarize the literature with respect to the impact of anticoagulation monitoring strategies and therapeutic strategies to manage heparin resistance and optimize anticoagulation with cardiac surg ...
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Journal ArticleCrit Care Med · May 2007
OBJECTIVE: To assess the health economic impact of perioperative myocardial infarction in a cohort of patients undergoing coronary artery bypass graft surgery. DESIGN: Retrospective cohort analysis using data from hospital bills and uniform billing forms. ...
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Journal ArticleAnesth Analg · April 2007
BACKGROUND: Changes in the Jehovah's Witness (JW) blood refusal policy now give members the personal choice to accept certain processed fractions of blood, such as factor concentrates and cryoprecipitate. METHODS: Two JW patients undergoing complex aortic ...
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Journal ArticleAnesth Analg · February 2007
BACKGROUND: Lipid A, the toxic moiety of endotoxin, is linked to multiple complications after cardiac surgery, including fever, vasodilation, and pulmonary and renal dysfunction. The lipid A antagonist eritoran (or E5564) prevents endotoxin-induced systemi ...
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OtherHematol Oncol Clin North Am · February 2007
Hemostatic abnormalities occur following injury associated with both cardiac and noncardiac surgery. These changes are part of inflammatory pathways with signaling mechanisms that link these diverse pathways. The inflammatory response to surgery is exacerb ...
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OtherHematol Oncol Clin North Am · February 2007
Heparin-induced thrombocytopenia (HIT) is a serious, yet treatable prothrombotic disease that develops in approximately 0.5% to 5% of heparin-treated patients and dramatically increases their risk of thrombosis (odds ratio, 37). The antibodies that mediate ...
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OtherHematol Oncol Clin North Am · February 2007
Thrombin is an essential serine protease for survival. Since the discovery of heparin in the early twentieth century, significant advances have been made in the understanding of thrombin structure and function in coagulation system. Endogenous anticoagulan ...
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Book · January 1, 2007
This new bedside manual guides you through all the practical aspects of managing patients following cardiothoracic surgery and critically ill cardiology patients. Primarily designed to use in cardiothoracic intensive care units and coronary care units, it ...
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Chapter · January 1, 2007
Trauma and critically ill patients encounter numerous foreign antigens during their medical care, by parenteral exposure (e.g., drugs, blood products, contrast agents, preservatives) or environmental contact (e.g., latex and skin preparation solutions), as ...
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Journal ArticleJ Anesth · 2007
PURPOSE: The authors analyzed the coagulation data of patients who underwent on-pump coronary artery bypass graft (CABG) or off-pump coronary artery bypass surgery (OPCAB) in a randomized prospective trial. METHODS: CABG and OPCAB patients received heparin ...
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Journal ArticleAnesth Analg · November 2006
BACKGROUND: Inappropriate activation of hemostasis and inflammation may contribute to postoperative morbidity and mortality. The serine protease inhibitor, aprotinin, has been shown to prevent tissue and organ injury in laboratory and animal studies. In th ...
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Journal ArticleAnn Thorac Surg · September 2006
BACKGROUND: Prolonged cross-clamp time during cardiac surgery increases the risk of postoperative mortality and myocardial injury. This subanalysis from the pexelizumab for reduction of infarction and mortality in coronary artery bypass grafting surgery (P ...
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OtherExpert Opin Investig Drugs · September 2006
Hereditary angioedema (HAE) manifests as intermittent, painful attacks of submucosal oedema affecting the larynx, gastrointestinal tract or limbs. Currently, acute treatment is available in Europe but not USA, and requires intravenous administration of a p ...
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Journal ArticleAnn Thorac Surg · August 2006
BACKGROUND: Morbidity and mortality after coronary artery bypass graft surgery are directly related to specific preoperative risk factors. We assessed the influence of preoperative risk factors on the effect of pexelizumab, a C5 complement inhibitor, to re ...
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Journal ArticleAm Heart J · August 2006
BACKGROUND: Recent trials evaluating the C5 complement inhibitor, pexelizumab, have shown that modulation of inflammation during ischemia/reperfusion in patients with acute myocardial infarction (MI) or undergoing coronary artery bypass graft (CABG) surger ...
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Journal ArticleBr J Haematol · July 2006
Thrombin plays a central role in coagulation and haemostasis. Binding of thrombin to thrombomodulin generates activated protein C (APC), which exerts a negative feedback on thrombin formation. Aprotinin, a natural proteinase inhibitor is used extensively d ...
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Journal ArticleTransfusion · June 2006
BACKGROUND: In recent years, the hemostatic agent recombinant factor VIIa (rFVIIa) has emerged as a potentially new therapeutic agent for management of coagulopathy in patients with cirrhosis or following severe traumatic injury, a complex problem for clin ...
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Journal ArticleJ Thorac Cardiovasc Surg · February 2006
OBJECTIVE: We sought to evaluate the effects of pexelizumab, a C5 complement inhibitor, on death and myocardial infarction in patients undergoing combined aortic valve replacement and coronary artery bypass grafting surgery. METHODS: The Pexelizumab for Re ...
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Journal ArticleJ Am Coll Surg · February 2006
BACKGROUND: Epsilon-aminocaproic acid is a plasmin inhibitor that potentially reduces perioperative bleeding when administered prophylactically to cardiac surgery patients. To evaluate the efficacy of epsilon-aminocaproic acid, a prospective placebo-contro ...
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OtherSemin Hematol · January 2006
Coagulopathy following massive transfusion is a consequence of post-traumatic and surgical hemorrhage. Bleeding following massive transfusion can occur due to hypothermia, dilutional coagulopathy, platelet dysfunction, fibrinolysis, or hypofibrinogenemia. ...
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Journal ArticleThromb Haemost · October 2005
Heparin is the current mainstay drug for anticoagulation during cardiac surgery, but it requires normal levels of antithrombin (AT) for optimal anticoagulation. Heparin anticoagulation may be less effective in cardiac surgical patients because of decreased ...
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OtherAm J Health Syst Pharm · September 15, 2005
PURPOSE: The pharmacologic management of hemostasis in patients undergoing surgery with cardiopulmonary bypass is discussed. SUMMARY: Nearly 45 studies involving 7,000 patients have reported efficacy of aprotinin in blood conservation. Both in primary coro ...
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OtherCurr Hematol Rep · September 2005
Patients undergoing cardiac surgery with and potentially without cardiopulmonary bypass (CPB) are at risk for excessive microvascular bleeding. This bleeding often leads to transfusion of allogeneic blood and blood components as well as reexploration. Exce ...
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Journal ArticleAIDS · August 12, 2005
OBJECTIVE: To determine the population effectiveness of a city-wide perinatal HIV prevention program. DESIGN: An anonymous surveillance of newborn cord blood for HIV serology and nevirapine (NVP). METHODS: All 10 public-sector delivery centers in Lusaka, Z ...
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Journal ArticleAnn Thorac Surg · July 2005
PURPOSE: The use of heparin in patients with heparin-induced thrombocytopenia (HIT) may result in severe complications or death. The diagnosis of HIT is frequently uncertain, however. Alternative anticoagulants in at-risk patients undergoing cardiac surger ...
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Journal ArticleJ Thorac Cardiovasc Surg · July 2005
OBJECTIVES: We sought to evaluate the efficacy of recombinant human antithrombin III for restoration of heparin responsiveness in heparin-resistant patients scheduled for cardiac surgery. METHODS: This was a multicenter, randomized, double-blind, placebo-c ...
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Journal ArticleAnesth Analg · June 2005
Clot retraction and fibrinolysis may present as a decrease in amplitude on thrombelastography (TEG). The former represents normal or hyperactive platelet function, and the latter represents a fibrinolytic state. It is important to distinguish clot retracti ...
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Journal ArticleAnn Thorac Surg · April 2005
BACKGROUND: Intractable hemorrhage after complex cardiovascular operations is a serious and potentially lethal complication. We report our experience with the use of activated recombinant factor VIIa (rFVIIa) as rescue therapy for patients with refractory ...
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Journal ArticleAnesthesiology · February 2005
BACKGROUND: The study evaluated the efficacy of recombinant human antithrombin (rhAT) for restoring heparin responsiveness in heparin resistant patients undergoing cardiac surgery. METHODS: This was a multicenter, randomized, double-blind, placebo-controll ...
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OtherCurrent Opinion in Anaesthesiology · January 1, 2005
Purpose of review: Severe bleeding after cardiac surgery is a potential problem that poses major risks and challenges. Severe bleeding after cardiac surgery still occurs despite many pharmacological approaches to decrease bleeding and reduce transfusion re ...
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OtherTex Heart Inst J · 2005
The major therapeutic approach to systemic and pulmonary hypertension and vasospasm in cardiac surgery patients involves the use of parenteral agents that reverse systemic vasoconstriction and produce vasodilation. Potential pharmacologic approaches includ ...
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Journal ArticleAnesth Analg · December 2004
We examined a novel method to detect platelet inhibition with thrombelastography (TEG). We hypothesized that this method would be suitable for monitoring the antiplatelet effects of eptifibatide (Integrilin). Whole blood from healthy volunteers was anticoa ...
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Journal ArticleAnesth Analg · November 2004
We evaluated argatroban, a direct thrombin inhibitor, as a heparin adjunct for anticoagulation. Platelet-poor plasma (PPP) was isolated from blood collected from 12 volunteers. Thrombin generation measurements were performed in donor PPP that was mixed wit ...
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Journal ArticleBr J Anaesth · August 2004
BACKGROUND: Hypertension is a major problem in the perioperative period of cardiac and non-cardiac surgery. The vascular endothelium plays a crucial role in modulating vascular tone by producing vasodilators as well as vasoconstrictors. Thromboxane A2 (TxA ...
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Journal ArticlePlatelets · August 2004
The use of clopidogrel (Plavix), an inhibitor of adenosine diphosphate (ADP)-induced platelet aggregation, has been proven to reduce ischemic events in cardiovascular patients, but little information is available for optimal monitoring of platelet function ...
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Journal ArticleTransfusion · August 2004
BACKGROUND: Platelet (PLT) transfusions are administered in cardiac surgery to prevent or treat bleeding, despite appreciation of the risks of blood component transfusion. The current analysis investigates the hypothesis that PLT transfusion is associated ...
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OtherOrthopedics · June 2004
Aprotinin is a polypeptide with serine protease inhibitory activity of key enzymes associated with inflammatory, fibrinolytic, and hemostatic pathways. The drug binds directly to the fibrinolytic plasmin at the lower plasmin-inhibiting dose (plasma concent ...
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OtherOrthopedics · June 2004
Cardiac surgery and cardiopulmonary bypass produces bleeding and the need for allogenic blood product transfusions in many patients. Blood conservation is important in the perioperative management of patients. Aprotinin, a serine protease inhibitor isolate ...
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Journal ArticleJAMA · May 19, 2004
CONTEXT: Inflammation and ischemia-reperfusion injury during coronary artery bypass graft (CABG) surgery requiring cardiopulmonary bypass are associated with postoperative myocardial infarction (MI) and mortality. OBJECTIVE: To determine the efficacy and s ...
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Journal ArticlePlatelets · February 2004
Since the consumption of wine in the United States has increased in recent years, a number of patients may be admitted to the hospital on the morning of their elective surgery after having consumed wine with dinner the evening before. Research indicates th ...
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Journal ArticleLiver Transpl · January 2004
Analysis of the effectiveness of antifibrinolytic therapy for liver transplant recipients is hampered by lack of quantitative assays for assessing drug effects. We adapted chemical engineering tools used in polymerization studies to quantify fibrinogen cro ...
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Journal ArticleThromb Res · 2004
BACKGROUND: DX-88 is a potent kallikrein inhibitor that is being studied for the treatment of hereditary angioedema (HAE) and represents a potential alternative to aprotinin in cardiac surgical patients. The current study was designed to evaluate in vitro ...
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Journal ArticleAnesth Analg · November 2003
UNLABELLED: Activation of clotting with tissue factor (TF) allows rapid evaluation of thromboelastograms but alters the values of thromboelastogram variables. We have performed TF-activated thromboelastograms in 250 children <2 yr old undergoing cardiac su ...
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OtherExpert Opin Biol Ther · June 2003
For the treatment of substantial blood loss in surgery, allogeneic blood is transfused to maintain stability and organ perfusion and function. Continued concerns about the availability, safety, efficacy and storage-related problems of allogeneic blood prod ...
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Journal ArticleAnesth Analg · February 2003
We studied the effects of hydralazine, nicardipine, nitroglycerin, and fenoldopam (a dopamine D1-agonist) on isolated human umbilical arteries (HUA) from patients classified as normotensive and with pregnancy-induced hypertension (PIH). Umbilical artery ri ...
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OtherAnn Thorac Surg · February 2003
Inflammation in cardiac surgical patients is produced by complex humoral and cellular interactions with numerous pathways including activation, generation, or expression of thrombin, complement, cytokines, neutrophils, adhesion molecules, mast cells, and m ...
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Journal ArticleJournal of biomolecular techniques : JBT · December 2002
A series of successful microarray experiments typically results in a data matrix containing a list of a few thousand genes and their measured expression values across various conditions tested. The understanding of why some genes are clustered in their exp ...
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Journal ArticleAnesth Analg · August 2002
After unsuccessful treatment of intraoperative tachycardia with esmolol during off-pump revascularization, heart rate was successfully reduced with a bolus and infusion of dexmedetomidine. ...
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Journal ArticleJ Thorac Cardiovasc Surg · July 2002
BACKGROUND: Blood loss leading to reduced oxygen-carrying capacity is usually treated with red blood cell transfusions. This study examined the hypothesis that a hemoglobin-based oxygen-carrying solution can serve as an initial alternative to red blood cel ...
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Journal ArticleAnesth Analg · July 2002
UNLABELLED: The standard celite or kaolin activated clotting time (ACT) correlates poorly with heparin levels during cardiopulmonary bypass (CPB). We compared a modified kaolin ACT, in which plasma was supplemented, to a standard undiluted kaolin ACT for m ...
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Journal ArticleAnesthesiology · May 2002
BACKGROUND: Treatment of elevated blood pressure is frequently necessary after cardiac surgery to minimize postoperative bleeding and to attenuate afterload changes associated with hypertension. The purpose of this study was to investigate the pharmacodyna ...
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Journal ArticleAnesthesiology · May 2002
BACKGROUND: Acquired antithrombin III (AT) deficiency may render heparin less effective during cardiac surgery and cardiopulmonary bypass (CPB). The authors examined the pharmacodynamics and optimal dose of recombinant human AT (rh-AT) needed to maintain n ...
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Journal ArticleAnesth Analg · April 2002
UNLABELLED: Hemoglobin-based oxygen carrier-201 (HBOC-201, hemoglobin glutamer-250 [bovine], Hemopure; Biopure Corporation, Cambridge, MA) is polymerized hemoglobin of bovine origin being developed as an oxygen therapeutic. In this study, we evaluated the ...
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OtherAnn Thorac Surg · January 2002
Phosphodiesterase inhibitors including milrinone produce positive inotropic effects by slowing the hydrolysis of cyclic adenosine monophosphate in the myocardium. With a loading dose of 50 microg/kg followed by an infusion of 0.5 microg x kg(-1) x min(-1), ...
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Journal ArticleAnesth Analg · December 2001
UNLABELLED: Anaphylactic shock therapy includes the use of catecholamines but they may not always be effective. Because vasodilation during anaphylaxis is a result of the endothelial release of multiple mediators, we investigated the effects of epinephrine ...
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OtherAnesthesiol Clin North Am · December 2001
Anaphylaxis is one of the most life-threatening emergencies that can occur in the perioperative period. Multiple agents can be responsible, and nonallergic reactions can mimic anaphylaxis. Developing a therapeutic plan for the acute therapy of anaphylaxis ...
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OtherAnn Thorac Surg · November 2001
Bleeding after cardiac surgery remains a major potential problem. Numerous pharmacologic approaches to attenuating hemostatic system activation in cardiac surgery patients have been studied to further improve patient management. Therapeutic approaches stud ...
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Journal ArticleAnn Thorac Surg · September 2001
BACKGROUND: Historically, warfarin has been discontinued or rapidly reversed with fresh frozen plasma in patients awaiting heart transplantation because of concerns regarding excessive bleeding. Because preoperative warfarin may have effects on bleeding af ...
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Journal ArticleSemin Thromb Hemost · August 2001
Plasma-derived antithrombin (AT) concentrates have been used for the management of hereditary and acquired deficiencies since the early 1980s. Recombinant versions of other blood factors and their derivatives are increasingly becoming available, providing ...
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Journal ArticleAnn Thorac Surg · February 2001
Cardiopulmonary bypass is associated with a systemic inflammatory response, a spectrum of pathophysiologic changes ranging from mild organ dysfunction to multisystem organ failure. Complications include coagulation disorders (bleeding diathesis, hyperfibri ...
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Journal ArticleActa Medica Nagasakiensia · December 1, 2000
Internal mammary arteries (IMA) are routinely used for coronary artery bypass grafting (CABG). but can exhibit impairment of endothelium-dependent vascular relaxation. The use of radial artery (RA) grafts for CABG has been recently reintroduced. The long-t ...
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Journal ArticleBr J Anaesth · December 2000
Thirty volunteers underwent intradermal skin testing with increasing concentrations of rocuronium and cisatracurium to evaluate weal and flare responses, and whether either agent would cause mast cell degranulation and sensitization upon re-exposure. We fo ...
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OtherAnn Thorac Surg · August 2000
A variety of measures may affect bleeding and transfusion requirements in abciximab-treated patients. These measures include recognition of the risk factors for increased bleeding and transfusion requirements, use of proper transfusion practices, conservat ...
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Journal ArticleJ Cardiothorac Vasc Anesth · June 2000
OBJECTIVE: To conduct a survey of current cardiac anesthetic practice in Europe and the United States, as a first step toward establishing guidelines for the management of perioperative hypertension. DESIGN: Prospective, multicenter study. SETTING: Univers ...
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Journal ArticleAnesth Analg · June 2000
UNLABELLED: Complex coagulopathies follow cardiopulmonary bypass (CPB) in children. However, objective laboratory data that can be acquired rapidly to guide their management are lacking. Because thromboelastography has proven useful in this regard, we eval ...
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Journal ArticleAnesth Analg · May 2000
UNLABELLED: Heparin requires antithrombin III (AT) to achieve anticoagulation, and patients on continuous small-dose heparin preoperatively experience decreased levels of AT-causing heparin resistance. When this occurs, 2-4 units of fresh frozen plasma ( a ...
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Journal ArticleAnesthesiology · April 2000
BACKGROUND: If mast cells are stimulated they release multiple mediators that delineate markers for immunologic and nonimmunologic reactions; histamine and tryptase are the two best known. Although histamine can be assayed in plasma, it is a nonspecific ma ...
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Journal ArticleAnesth Analg · March 2000
UNLABELLED: Adequate levels of antithrombin (AT) III are essential for anticoagulation during cardiopulmonary bypass. Levels of AT are often decreased in patients receiving heparin before surgery. In these patients supplementation with exogenous AT can sup ...
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Journal ArticleAnesthesiology · October 1999
The literature does not consistently support the importance of anticoagulation monitoring techniques during CPB. This is best reflected by studies that have evaluated the impact of the ACT method on blood loss and transfusion outcomes. Inconsistent finding ...
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OtherJ Cardiothorac Vasc Anesth · August 1999
The pharmacologic management of hemostasis in patients undergoing cardiopulmonary bypass may be accompanied by adverse responses. Evaluating the safety profile of hemostatic agents (eg, lysine analogs, aprotinin, protamine, or even donor blood) should be d ...
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Journal ArticleAnesth Analg · August 1999
UNLABELLED: Neuromuscular blocking drugs may have variable effects on heart rate (HR) and blood pressure. Rapacuronium is a rapid-acting, steroidal-derived neuromuscular blocking drug whose hemodynamic effects have not been characterized. We studied the ef ...
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OtherAm J Hypertens · July 1999
A panel of clinicians from anesthesiology, surgery, nephrology, hypertension, cardiology, and pharmacology was convened to discuss pharmacologic therapeutics in the management of hypertensive crisis and perioperative hypertension. The panel discussed the a ...
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Journal ArticleAm J Physiol · July 1999
We tested the hypothesis that selective adenosine A(3)-receptor stimulation reduces postischemic contractile dysfunction through activation of ATP-sensitive potassium (K(ATP)) channels. Isolated, buffer-perfused rat hearts (n = 8/group) were not drug pretr ...
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Journal ArticleCirculation · January 5, 1999
BACKGROUND: In a variety of disease states, endothelium-dependent vasodilation is abnormal. Reduced nitric oxide (NO) production, increased destruction of NO by superoxide, diminished cellular levels of L-arginine or tetrahydrobiopterin, and alterations in ...
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OtherAnesthesiology Clinics of North America · January 1, 1999
Perioperative hypertension during cardiac or noncardiac surgery is a unique clinical problem characterized by systemic vasoconstriction often with intravascular hypovolemia that usually requires acute short-term intravenous therapy. β-Adrenergic blockers a ...
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Journal ArticleJ Thorac Cardiovasc Surg · November 1998
OBJECTIVE: We examined the effects of aprotinin on graft patency, prevalence of myocardial infarction, and blood loss in patients undergoing primary coronary surgery with cardiopulmonary bypass. METHODS: Patients from 13 international sites were randomized ...
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Journal ArticleAnesth Analg · October 1998
UNLABELLED: Bleeding after cardiopulmonary bypass (CPB) is related to multiple factors. Excess protamine weakens clot structure and decreases platelet function; therefore, an increased activated clotting time (ACT) after protamine reversal of heparin may b ...
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Journal ArticleAnn Thorac Surg · August 1998
BACKGROUND: Aprotinin consistently reduces blood loss and transfusion requirements in adults during and after cardiac surgical procedures, but its effectiveness in children is debated. We evaluated the hemostatic and economic effects of aprotinin in childr ...
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Journal ArticleActa Anaesthesiol Scand · August 1998
BACKGROUND: The aim of this study was to evaluate the efficacy of 1.5 mg/kg bolus of amrinone on low cardiac output (CO) state following emergence from cardiopulmonary bypass (CPB) in cardiac surgical patients. METHODS: Immediately after emergency from CPB ...
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Journal ArticleAnesthesiology · June 1998
BACKGROUND: Vasospasm of arterial grafts represents an unpredictable complication of coronary artery surgery and may compromise myocardial revascularization, and treatment is based on empirical therapy with nitroglycerin. Because of the potential for toler ...
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ConferenceFASEB Journal · 1998
Several multiply HIV-exposed, uninfected cohorts were studied for evidence of correlates of protective immunity. This uninfected high risk population was comprised of the IV drug-sharing and/or sexual partners of infected individuals. Genotyping of cells f ...
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Journal ArticleSeminars in Cardiothoracic and Vascular Anesthesia · January 1, 1998
Recently, new attempts have been made to fight old problems of coagulation and hemostasis as they relate to cardiac surgery. These discoveries are timely because the practice of both internists and surgeons has begun to change. Newer and more potent medica ...
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OtherSeminars in Anesthesia · January 1, 1998
Anaphylaxis represents one of the most life-threatening emergencies that can occur in the perioperative period. Multiple agents are potentially responsible, and nonallergic reactions can mimic anaphylaxis. Developing a therapeutic plan for the acute therap ...
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Journal ArticleAnesth Analg · December 1997
UNLABELLED: Coagulopathies in children after cardiopulmonary bypass (CPB) are complex. There are very limited data correlating coagulation tests with postoperative bleeding. We evaluated coagulation changes after CPB and after the administration of coagula ...
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Journal ArticleAnesth Analg · November 1997
UNLABELLED: Endothelial dysfunction and platelet activation with thromboxane release may contribute to spasm or alterations in internal mammary artery (IMA) graft flow during coronary artery surgery. Clevidipine, an ultrashort-acting dihydropyridine calciu ...
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Journal ArticleAnesth Analg · July 1997
Although milrinone effectively increases cardiac function, few studies have specifically evaluated its efficacy during cardiac surgery. We investigated the effects of milrinone on hemodynamics and left ventricular function in cardiac surgical patients who ...
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OtherJ Cardiothorac Vasc Anesth · May 1997
The inflammatory response to cardiopulmonary bypass is the product of a complex interplay of humoral and cellular components. Contact activation cascades, the complement system, and cytokines comprise the humoral elements and interact in such a way as to p ...
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Journal ArticleAnesth Analg · April 1997
There are quantitative deficiencies in the coagulation system for at least the first 6 mo of life. Clinical experience, however, does not indicate an increased risk of excessive bleeding during surgical procedures. Thrombelastography, a test providing a fu ...
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Journal ArticleNeurosurgery · February 1997
OBJECTIVE: Delayed cerebral ischemia resulting from vasospasm is a major cause of morbidity and death in patients with aneurysmal subarachnoid hemorrhage. Milrinone, because it inhibits Type IV cyclic adenosine monophosphate-specific phosphodiesterase enzy ...
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Journal ArticleJ Thorac Cardiovasc Surg · October 1996
BACKGROUND: Patients having cardiac operations often require blood transfusions. Aprotinin reduces the need for blood transfusions during coronary artery bypass graft operations. To determine the safety and effectiveness of aprotinin in reducing the use of ...
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Journal ArticleAnesth Analg · August 1996
There are no clinically available alternatives for reversing heparin in protamine-allergic patients. This study examined the ability of methylene blue, hexadimethrine, and vancomycin to reverse circulating heparin so that these compounds can be carefully e ...
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Journal ArticleAnesthesiology · August 1996
BACKGROUND: Protamine causes multiple adverse reactions. Heparinase I, a specific enzyme that inactivates heparin, is a possible alternative to protamine. In this study, the authors examined the efficacy of heparinase I to reverse heparin-induced anticoagu ...
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Journal ArticleAnesth Analg · May 1996
The internal mammary artery (IMA) is the preferred conduit for myocardial revascularization, but it changes diameter in response to injury or thromboxane release to decrease myocardial blood supply. Papaverine, a phosphodiesterase (PDE) inhibitor, is injec ...
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Journal ArticleChest · May 1996
OBJECTIVES: The positive inotropic and vasodilator actions of phosphodiesterase (PDE) inhibitor drugs may offer therapeutic alternatives to beta-agonists in critically ill patients. We hypothesized that milrinone administration would increase cardiac index ...
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Journal ArticleFood Chem Toxicol · January 1996
Two experiments evaluating functional endpoints pertaining to the developmental neuroendocrine effects of aluminum in the rat are reported. A total of 31 timed mated dams were fed by daily gastric gavage 0, 5, 25, 50, 250, 500 or 1000 mg/kg body weight/day ...
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OtherJ Cardiovasc Pharmacol · 1996
Inflammation is a protective response of vascularized tissue normally elicited toward nonself-determinants or tissue injury. Inflammation functions as part of normal host surveillance mechanisms to destroy or quarantine both harmful agents and damaged tiss ...
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Journal ArticleCirculation · October 15, 1995
BACKGROUND: Aprotinin is a serine protease inhibitor that reduces blood loss and transfusion requirements when administered prophylactically to cardiac surgical patients. To examine the safety and dose-related efficacy of aprotinin, a prospective, multicen ...
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Journal ArticleAnesth Analg · July 1995
Protamine is the only available drug to reverse heparin-induced anticoagulation. Platelet factor 4 (PF4) is a basic polypeptide stored in platelets that reverses heparin. To investigate its potential as a reversal drug, we studied recombinant PF4 on antico ...
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Journal ArticleAnesth Analg · July 1995
Although amrinone produces thrombocytopenia, no information is available regarding the acute effects of milrinone on platelets. Therefore, we evaluated the effects of milrinone on platelet number and function in cardiac surgical patients. Twenty-seven pati ...
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Journal ArticleJ Pediatr · April 1995
BACKGROUND: We evaluated data from prospectively identified twins to understand better the mechanisms and covariates of mother-to-infant transmission of human immunodeficiency virus (HIV). METHODS: Using data obtained from an international collaboration an ...
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Journal ArticleInt Anesthesiol Clin · 1995
The positive inotropic agents, including beta-adrenergic receptor agonists and PDE III inhibitors, are reviewed to explain their mechanisms of action, pharmacology, and clinical usage. New cardiotonic drugs, such as dopexamine and dobutamine (beta-adrenerg ...
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Journal ArticleAnaesthetic Pharmacology Review · January 1, 1995
Our clinical armamentarium requires alternatives to protamine. Initial human data with rPF4 reveal an effective safe agent. The adverse haemodynamic effects in lambs may derive from species variability, or may represent a cause for concern. Data from human ...
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Journal ArticleCirculation · November 1994
BACKGROUND: Hypertension commonly occurs after cardiac surgery and requires therapy to prevent the potentially deleterious effects. METHODS AND RESULTS: After coronary artery bypass graft surgery (CABG), 177 patients with elevated blood pressure > or = 90 ...
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Journal ArticleAnesthesiology · September 1994
BACKGROUND: Milrinone is a phosphodiesterase inhibitor with positive inotropic and vasodilator effects that are useful in the treatment of ventricular dysfunction after cardiac surgery. However, the pharmacokinetics of the drug have been investigated only ...
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Journal ArticleAnesthesiology · May 1994
BACKGROUND: Aprotinin, a polypeptide protease inhibitor, reduces bleeding and transfusion requirements during cardiac surgery. To investigate aprotinin's pharmacokinetics, we administered therapeutic doses to patients scheduled to undergo cardiac surgery. ...
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Journal ArticleAnesth Analg · February 1994
The cardiovascular effects, histamine release potential, and pharmacodynamics of rocuronium were determined in adult patients randomized to receive rapid (5 s) intravenous (i.v.) bolus doses of 600, 900, or 1200 micrograms/kg (2.0, 3.0, and 4.0 times the E ...
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Journal ArticleCirculation · January 1, 1994
Background: Hypertension commonly occurs after cardiac surgery and requires therapy to prevent the potentially deleterious effects. Methods and Results: After coronary artery bypass graft surgery (CABG), 177 patients with elevated blood pressure ≥90 mm Hg ...
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Journal ArticleCurrent Opinion in Anaesthesiology · January 1, 1994
Techniques and clinical applications for assessing left ventricular global and regional function during cardiovascular anesthesia are reviewed. Transesophageal echocardiography has provided an important and novel method for the assessment of myocardial fun ...
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Journal ArticleChest · January 1994
Reports evaluating amrinone's effects in normal (intact) human subjects are complex and difficult to interpret because of the drug's diverse effects on myocardial function, resistance vessels, and vascular capacitance. In this study, 1.5 mg/kg of amrinone ...
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OtherJ Cardiothorac Vasc Anesth · August 1993
Perioperative support of the patient with preexisting biventricular failure requires simultaneous optimal manipulation of heart rate and rhythm, loading conditions, and contractility. Patients with preexisting ventricular dysfunction will have alterations ...
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Journal ArticleJ Cardiothorac Vasc Anesth · April 1993
Separation from EC requires simultaneous optimal manipulation of heart rate and rhythm, loading conditions, afterload, and contractility. Patients with preexisting ventricular dysfunction will have alterations in beta-adrenergic receptors and responsivenes ...
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OtherActa Anaesthesiol Scand Suppl · 1993
Perioperative hypertension is primarily due to increased systemic vascular resistance (SVR). Therefore, the major therapeutic approaches are directed at reducing vasoconstriction, using drugs that increase cyclic nucleotides or block calcium entry into vas ...
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Journal ArticleJ Heart Lung Transplant · 1993
Patients who require cardiac surgery or heart-lung transplantation may have been previously sensitized to drugs and blood products to which they may be reexposed during their current surgery. Reexposure may produce an anaphylactic reaction, a life-threaten ...
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Journal ArticleAgents and Actions · June 1, 1992
All muscle relaxants inhibit histamine N-methyltransferase in vitro, but vecuronium, a steroid-derived muscle relaxant, is the most potent inhibitor. It has been suggested that administration of vecuronium prior to giving a drug that releases histamine may ...
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OtherEur J Anaesthesiol Suppl · 1992
Amrinone is the only phosphodiesterase fraction III inhibitor currently available in the USA for the treatment of perioperative biventricular failure. Patients with chronic congestive heart failure (CHF) show down-regulation of the beta 1-adrenergic recept ...
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Journal ArticleAnesthesiology · December 1991
Amrinone is a nonglycosidic noncatecholamine with both vasodilator and positive inotropic effects that may be administered to patients undergoing cardiac surgery. As an initial step toward elucidating the optimal dosage of amrinone for cardiac surgical pat ...
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Journal ArticleAgents Actions · November 1991
Chemically and pharmacologically unrelated molecules release histamine in humans to produce both cutaneous and systemic responses. It has been suggested that molecular changes in the new benzylisoquinoline-derived muscle relaxant, atracurium, make it less ...
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Journal ArticlePerfusion · January 1, 1991
Anaphylactic reactions during cardiac surgery may present as acute cardiopulmonary dysfunction and require prompt and aggressive therapy. Recognition, with appropriate therapeutic intervention, is essential to prevent the life-threatening complications ass ...
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OtherPerfusion · 1991
Anaphylactic reactions during cardiac surgery may present as acute cardiopulmonary dysfunction and require prompt and aggressive therapy. Recognition, with appropriate therapeutic intervention, is essential to prevent the life-threatening complications ass ...
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Journal ArticleCrit Care Med · December 1990
The relationship between clinical indicators of peripheral perfusion and global hemodynamics after cardiac surgery was examined in 40 adults. We found no significant relationship between capillary refill, pedal pulses, or extremity (toe or finger) core tem ...
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Journal ArticlePerfusion · January 1, 1990
A reduction in host defence capability, with increased risks of infection, occurs after open-heart surgery to a greater degree than after nonbypass surgery. Our costs for postoperative infections are large, about 15% of the total cost of open-heart surgery ...
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OtherJ Cardiothorac Anesth · December 1989
Amrinone is a selective inhibitor of phosphodiesterase fraction 3 in both cardiac and smooth muscle. Intravenous administration in humans produces increased contractility and vasodilation of venous capacitance and arterial conductance vessels. The eliminat ...
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Journal ArticleAgents Actions · August 1989
Animal mast cell models demonstrate direct histamine release by protamine. Investigators have proposed that protamine also releases histamine in man. We studied the effects of protamine alone and heparin-protamine mixtures on minced lung tissue for evidenc ...
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Journal ArticleJ Thorac Cardiovasc Surg · August 1989
Patients with neutral protamine Hagedorn and protamine-zinc insulin-dependent diabetes, a history of fish allergy, or prior vasectomy have been reported to be at an increased risk for protamine reactions after cardiopulmonary bypass because of prior sensit ...
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Journal ArticleAnesthesiology · May 1989
Certain opioids release histamine from cutaneous mast cells to produce local wheal and flare responses and adverse hemodynamic effects. In vivo responses to opioids suggest that cutaneous responses result from the interaction of opioids with opioid recepto ...
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Journal ArticleJ Clin Anesth · 1989
Over a 12-month period, 1,743 patients were retrospectively evaluated for anaphylactic/anaphylactoid reactions during cardiac surgery. Reactions to protamine, vancomycin, blood, and metocurine were observed in eight patients (0.46%). Baseline to reaction m ...
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Journal ArticleCrit Care Med · February 1988
This study examined a simple technique for reducing contamination during catheterization of the internal jugular vein. Sixty patients were assigned randomly to receive either a traditional iodophor skin cleansing or an alcohol cleansing, followed by applic ...
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OtherJ Clin Anesth · 1988
Any drug or blood product administered in the perioperative period has the potential to produce a life-threatening allergic (immune reaction) called anaphylaxis. Anaphylactic reactions represent adverse reactions mediated by immunospecific antibodies (IgE ...
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Journal ArticleBr J Anaesth · 1988
In summary, CPB provides a complex set of physiological circumstances during which the patient is subjected to severe physiological alterations with surprisingly few adverse sequelae. Our ultimate goal in performing medical research is to provide scientifi ...
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Journal ArticleAnesth Analg · July 1986
Patients with NPH (neutral protamine Hagedorn) insulin-dependent diabetes may have an increased risk for protamine reactions because of prior sensitization. During one year, we prospectively evaluated 50 at-risk cardiac surgery patients for clinical reacti ...
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OtherSpine (Phila Pa 1976) · April 1986
Anaphylaxis is a life-threatening, immunologically mediated reaction. "Anaphylactoid" reactions produce the same clinical syndrome but are not immunologically mediated. Vasoactive mediators of these reactions include histamine, eosinophilic chemotactic fac ...
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Journal ArticleAnesth Analg · July 1985
One hundred sequential spinal anesthetic procedures were reviewed retrospectively to study specifically the incidence and causes of spinal anesthesia. Variables examined included the patient population, the technical aspects of performing subarachnoid tap ...
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Journal ArticleRegional Anesthesia · January 1, 1985
A case is described of severe diarrhea following a transaortic neurolytic celiac plexus block. A brief review of incidence and severity of this complication associated with the newer methods of celiac plexus block is presented, and the possible cause of di ...
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OtherJAMA · May 11, 1984
Four patients had soft, narrow-bore feeding tubes passed transbronchially into the pleural space. Guide wires were used to aid passage and may have contributed to this complication. The errant positioning of the tube was first noted roentgenographically in ...
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