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Hranjec T, Mayhew M, Rogers B, Solomon R, Hurst D, Estreicher M, Augusten A, Nunez A, Green M, Malhotra S, Katz R, Rosenthal A, Hennessy S, Pepe P, Sawyer R, Arenas J. Diagnosis and treatment of coagulopathy using thromboelastography with platelet mapping is associated with decreased risk of pulmonary failure in COVID-19 patients. Blood Coagul Fibrinolysis 2023; 34:508-516. [PMID: 37831624 DOI: 10.1097/mbc.0000000000001259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
INTRODUCTION Treatment of coronavirus disease 2019 (COVID-19) patients may require antithrombotic and/or anti-inflammatory medications. We hypothesized that individualized anticoagulant (AC) management, based on diagnosis of coagulopathy using thromboelastography with platelet mapping (TEG-PM), would decrease the frequency of pulmonary failure (PF) requiring mechanical ventilation (MV), mitigate thrombotic and hemorrhagic events, and, in-turn, reduce mortality. METHODS Hospital-admitted COVID-19 patients, age 18 or older, with escalating oxygen requirements were included. Prospective and supplemental retrospective chart reviews were conducted during a 2-month period. Patients were stratified into two groups based on clinician-administered AC treatment: TEG-PM guided vs. non-TEG guided. RESULTS Highly-elevated inflammatory markers (D-dimer, C-reactive protein, ferritin) were associated with poor prognosis but did not distinguish coagulopathic from noncoagulopathic patients. TEG-guided AC treatment was used in 145 patients vs. 227 treated without TEG-PM guidance. When managed by TEG-PM, patients had decreased frequency of PF requiring MV (45/145 [31%] vs. 152/227 [66.9%], P < 0.0001), fewer thrombotic events (2[1.4%] vs. 39[17.2%], P = 0.0019) and fewer hemorrhagic events (6[4.1%] vs. 24[10.7%], P = 0.0240), and had markedly reduced mortality (43[29.7%] vs. 142[62.6%], P < 0.0001). Platelet hyperactivity, indicating the need for antiplatelet medications, was identified in 75% of TEG-PM patients. When adjusted for confounders, empiric, indiscriminate AC treatment (not guided by TEG-PM) was shown to be an associated risk factor for PF requiring MV, while TEG-PM guided management was associated with a protective effect (odds ratio = 0.18, 95% confidence interval 0.08-0.4). CONCLUSIONS Following COVID-19 diagnosis, AC therapies based on diagnosis of coagulopathy using TEG-PM were associated with significantly less respiratory decompensation, fewer thrombotic and hemorrhagic complications, and improved likelihood of survival.
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Affiliation(s)
- Tjasa Hranjec
- Department of Surgery, Bronson Methodist Hospital
- Department of Surgery, Western Michigan University, Homer Stryker MD School of Medicine, Kalamazoo, Michigan
- Department of Surgery, Memorial Regional Hospital, Hollywood
| | - Mackenzie Mayhew
- Florida International University, Miami, Florida
- University of Virginia, Charlottesville, Virginia
| | | | - Rachele Solomon
- Department of Surgery, Memorial Regional Hospital, Hollywood
| | | | | | | | - Aaron Nunez
- Department of Medicine, Memorial Regional Hospital, Hollywood, Florida
| | - Melissa Green
- Department of Medicine, Memorial Regional Hospital, Hollywood, Florida
| | - Shivali Malhotra
- Department of Medicine, Memorial Regional Hospital, Hollywood, Florida
| | | | | | - Sara Hennessy
- Department of Surgery, University of Texas Southwestern Medical Center
| | - Paul Pepe
- Metropolitan Emergency Medical Services, Medical Directors Coalition Global Hdqtrs, Dallas, Texas, USA
| | - Robert Sawyer
- Department of Surgery, Bronson Methodist Hospital
- Department of Surgery, Western Michigan University, Homer Stryker MD School of Medicine, Kalamazoo, Michigan
| | - Juan Arenas
- Department of Surgery, Memorial Regional Hospital, Hollywood
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Bhoelan S, Codreanu C, Tichelaar V, Borjas Howard J, Meijer K. Exploring heterogeneity in reported venous thromboembolism risk in COVID-19 and comparison to other viral pneumonias: a systematic review and meta-regression. Res Pract Thromb Haemost 2023; 7:102146. [PMID: 37663366 PMCID: PMC10470259 DOI: 10.1016/j.rpth.2023.102146] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/18/2023] [Accepted: 06/24/2023] [Indexed: 09/05/2023] Open
Abstract
Background Sources of heterogeneity in venous thromboembolism (VTE) risk in COVID-19 are unclear and comparisons to other viruses are lacking. Objectives To describe VTE risk in patients with COVID-19, explore sources of heterogeneity, and make comparisons with other viral pneumonia. Methods PubMed and Embase data were searched on March 14, 2021, for studies on VTE in adults hospitalized with viral pneumonia. VTE risk estimates were pooled in a random effects meta-analysis stratified by virus type. Heterogeneity in COVID-19 was explored in multivariable meta-regression. Results Seventy studies in COVID-19 (intensive care [ICU] [47] vs ward [23]), 4 studies in seasonal influenza (ICU [3] vs ward [1]), 2 ICU studies in H1N1 and 1 ICU study in SARS-CoV-1 were included. For COVID-19 ICU, pooled VTE risk was 19.6% (95% confidence interval [CI], 16.2%-23.5; I2 = 92.8%) for nonscreening studies and 30.0% (95% CI, 17.9%-45.7%; I2 = 81.9%) for screening studies. For COVID-19 ward, pooled VTE risk was 3.4% (95% CI, 2.4%-4.7%; I2 = 91.3%) and 22.5% (95% CI, 10.2%-42.7%; I2 = 91.6%) for nonscreening and screening studies, respectively. Higher sample size was associated with lower VTE risk. Pooled VTE risk in seasonal influenza and H1N1 at ICU were 9.0% (95% CI, 5.6%-14.2%; I2 = 39.7%) and 29.2% (95% CI, 8.7%-64.2%; I2 = 77.9%), respectively. At ward, VTE risk of seasonal influenza was 2.4% (95% CI, 2.1%-2.7%). In SARS-CoV-1, VTE risk was 47.8% (95% CI, 34.0-62.0). Conclusion Pooled risk estimates in COVID-19 should be interpreted cautiously as a high degree of heterogeneity is present, which hinders comparison to other viral pneumonia. The association of VTE risk in COVID-19 to sample size suggests publication bias.
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Affiliation(s)
- Soerajja Bhoelan
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Catalina Codreanu
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Vladimir Tichelaar
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Jaime Borjas Howard
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Karina Meijer
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
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3
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Yoshikawa Y, Maeda M, Ohno S, Takahashi K, Sawashita Y, Hirahata T, Iba Y, Kawaharada N, Edanaga M, Yamakage M. Validity and Utility of Early Parameters in TEG6s Platelet Mapping to Assess the Coagulation Status During Cardiovascular Surgery With Cardiopulmonary Bypass. Cureus 2023; 15:e38044. [PMID: 37228566 PMCID: PMC10208008 DOI: 10.7759/cureus.38044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
Background The aim of this retrospective observational study was to explore the early predictive parameters for maximum amplitudein the kaolin with heparinase (HKH) assay (MAHKH) of TEG6s Platelet Mapping in cardiovascular surgery including cardiopulmonary bypass (CPB) period. The relationship between each parameter of the assay and laboratory data was also assessed. Methods We included the patients who underwent TEG6s Platelet Mapping during cardiovascular surgery under CPB between November 2021 and May 2022. The correlation between MAHKH and the early parameters was assessed. The association between each parameter of Platelet Mapping and a combination of fibrinogen concentration > 150 mg/dL and platelet count > 100,000µL was also evaluated by the receiver operating characteristic (ROC) curve. Results In 23 patients who underwent TEG6s Platelet Mapping during the study period, 62 HKH assay data including 59 pairs of data (HKH assay and laboratory data) were analyzed. K and angle, but not R, were significantly correlated with MAHKH (r [95% CI]: -0.90 [-0.94, -0.83], p < 0.0001 for K, and 0.87 [0.79, 0.92], p < 0.0001 for angle). Furthermore, ROC curves suggested that these parameters predicted a combination of fibrinogen concentration > 150 mg/dL and platelet count > 100,000/µL with high accuracy. Similar results were confirmed in the heparinized blood samples obtained during CPB. Conclusion These findings suggest that not only MAKHK but also K and angle, which are early parameters in the HKH assay, provide clinically significant information that will facilitate rapid decision-making regarding coagulation strategies during cardiovascular surgery including the CPB period.
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Affiliation(s)
- Yusuke Yoshikawa
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Makishi Maeda
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Sho Ohno
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Kanako Takahashi
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Yasuaki Sawashita
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Tomoki Hirahata
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Yutaka Iba
- Department of Cardiovascular Surgery, Sapporo Medical University, Sapporo, JPN
| | | | - Mitsutaka Edanaga
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
| | - Michiaki Yamakage
- Department of Anaesthesiology, Sapporo Medical University, Sapporo, JPN
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4
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Hartmann J, Curzen N. Modified Thromboelastography for Peri-interventional Assessment of Platelet Function in Cardiology Patients: A Narrative Review. Semin Thromb Hemost 2023; 49:192-200. [PMID: 36252602 PMCID: PMC9894686 DOI: 10.1055/s-0042-1757545] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Viscoelastic testing (VET), such as thromboelastography, can measure whole blood coagulation dynamics in real time and is used across a range of clinical settings, including cardiac surgery, liver transplant, and trauma. The use of modified thromboelastography with platelet function assessment (TEG(R) PlateletMapping(R) Assay) can provide an analysis of platelet contribution to hemostasis, including the contribution of the P2Y12 receptor and thromboxane pathway to platelet function. The TEG PlateletMapping Assay has shown high correlation with the current gold standard test of platelet function, light transmission aggregometry, to measure arachidonic acid and adenosine diphosphate agonist-induced platelet activation. Studies have also shown comparable results with other whole blood platelet function tests. In this review, we explore the clinical applications of modified thromboelastography with platelet function assessment. This includes guiding dual antiplatelet therapy in relation to cardiac procedures, such as percutaneous coronary interventions, transcatheter aortic valve replacement, and left atrial appendage closure. We also explore the developing use of thromboelastography in the emergency care setting of coronavirus disease 2019, which is commonly associated with a hypercoagulable and hypofibrinolytic state. Despite a general lack of high-quality, grade 1 evidence regarding the use of modified thromboelastography with platelet function assessment in these disease areas, the ability of the TEG PlateletMapping Assay to measure global hemostasis and platelet reactivity rapidly and to view and evaluate results at the point of care makes it a promising area for further study for managing patient treatment and optimizing hemostatic therapy.
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Affiliation(s)
| | - Nick Curzen
- Faculty of Medicine, University of Southampton & Cardiothoracic Department, University Hospital Southampton, United Kingdom
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5
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Volod O, Wegner J. Viscoelastic Testing in the Management of Adult Patients on Mechanical Circulatory Support Devices with Focus on Extracorporeal Membrane Oxygenation. Semin Thromb Hemost 2022; 48:814-827. [DOI: 10.1055/s-0042-1756303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AbstractThromboembolic and hemorrhagic complications continue to remain frequent complications that significantly impact the morbidity and mortality of patients implanted with mechanical circulatory support devices (MCSDs). The severe acute respiratory syndrome caused by coronavirus 2 (SARS-CoV-2) has resulted in a number of COVID-19 patients being supported by MCSDs, specifically extracorporeal membrane oxygenation (ECMO), which in turn has created a crucial need for rapid assessment of hemostatic status in these patients to avoid bleeding and thrombotic complications. Currently, conventional plasma-based coagulation assays such as prothrombin time and activated partial thromboplastin time (aPTT) are used to assess hemostasis, and the activated clotting time (ACT) and aPTT are the most common tests used to monitor heparin anticoagulation in patients on ECMO. Unfractionated heparin remains the mainstay anticoagulation therapy for patients on ECMO. Extracorporeal Life Support Organization (ELSO) offers little guidance on the subject but does state that each institution should create its internal anticoagulation protocols. Viscoelastic assays (VEAs) are increasingly recognized by ELSO and ECMO community for their potential to assess hemostatic derangements in patients implanted with MCSDs as well as guidance for appropriate hemostatic therapy. This review focuses on the evidence for the use of viscoelastic assays to assess overall hemostasis and to guide the treatment of adult patients connected to an ECMO circuit. Limitations of the use of conventional assays, ACT, and VEA are also discussed.
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Affiliation(s)
- Oksana Volod
- Department of Pathology and Laboratory Medicine, Cedars Sinai Medical Center, Los Angeles, California
| | - Julie Wegner
- College of Health Professions, South University Online, Savannah, Georgia
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Gorog DA, Storey RF, Gurbel PA, Tantry US, Berger JS, Chan MY, Duerschmied D, Smyth SS, Parker WAE, Ajjan RA, Vilahur G, Badimon L, Berg JMT, Cate HT, Peyvandi F, Wang TT, Becker RC. Current and novel biomarkers of thrombotic risk in COVID-19: a Consensus Statement from the International COVID-19 Thrombosis Biomarkers Colloquium. Nat Rev Cardiol 2022; 19:475-495. [PMID: 35027697 PMCID: PMC8757397 DOI: 10.1038/s41569-021-00665-7] [Citation(s) in RCA: 165] [Impact Index Per Article: 82.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/16/2021] [Indexed: 02/06/2023]
Abstract
Coronavirus disease 2019 (COVID-19) predisposes patients to thrombotic and thromboembolic events, owing to excessive inflammation, endothelial cell activation and injury, platelet activation and hypercoagulability. Patients with COVID-19 have a prothrombotic or thrombophilic state, with elevations in the levels of several biomarkers of thrombosis, which are associated with disease severity and prognosis. Although some biomarkers of COVID-19-associated coagulopathy, including high levels of fibrinogen and D-dimer, were recognized early during the pandemic, many new biomarkers of thrombotic risk in COVID-19 have emerged. In this Consensus Statement, we delineate the thrombotic signature of COVID-19 and present the latest biomarkers and platforms to assess the risk of thrombosis in these patients, including markers of platelet activation, platelet aggregation, endothelial cell activation or injury, coagulation and fibrinolysis as well as biomarkers of the newly recognized post-vaccine thrombosis with thrombocytopenia syndrome. We then make consensus recommendations for the clinical use of these biomarkers to inform prognosis, assess disease acuity, and predict thrombotic risk and in-hospital mortality. A thorough understanding of these biomarkers might aid risk stratification and prognostication, guide interventions and provide a platform for future research.
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Affiliation(s)
- Diana A Gorog
- National Heart and Lung Institute, Imperial College, London, UK.
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK.
| | - Robert F Storey
- Cardiovascular Research Unit, Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Paul A Gurbel
- Sinai Center for Thrombosis Research and Drug Development, Sinai Hospital of Baltimore, Baltimore, MD, USA
| | - Udaya S Tantry
- Sinai Center for Thrombosis Research and Drug Development, Sinai Hospital of Baltimore, Baltimore, MD, USA
| | - Jeffrey S Berger
- New York University Grossman School of Medicine, New York, NY, USA
| | - Mark Y Chan
- Yong Loo-Lin School of Medicine, National University of Singapore, Singapore, Singapore
- National University Heart Centre, Singapore, Singapore
| | - Daniel Duerschmied
- Cardiology and Angiology I and Medical Intensive Care, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg im Breisgau, Germany
- Cardiology, Medical Intensive Care, Angiology and Haemostaseology, University Medical Centre Mannheim, Mannheim, Germany
| | - Susan S Smyth
- UAMS College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - William A E Parker
- Cardiovascular Research Unit, Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Ramzi A Ajjan
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Gemma Vilahur
- Cardiovascular Research Center-ICCC, Research Institute - Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- CiberCV, Institute Carlos III, Madrid, Spain
| | - Lina Badimon
- Cardiovascular Research Center-ICCC, Research Institute - Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- CiberCV, Institute Carlos III, Madrid, Spain
- Universitat Autonoma de Barcelona, Barcelona, Spain
| | | | - Hugo Ten Cate
- Cardiovascular Research Institute Maastricht (CARIM) and Thrombosis Expertise Center, Maastricht University Medical Center, Maastricht, Netherlands
- Center for Thrombosis and Haemostasis, University Medical Center of Gutenberg University, Mainz, Germany
| | - Flora Peyvandi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy
- Università degli Studi di Milano, Department of Pathophysiology and Transplantation, Milan, Italy
| | - Taia T Wang
- Department of Medicine, Division of Infectious Diseases, Stanford University, Stanford, CA, USA
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Richard C Becker
- Heart, Lung and Vascular Institute, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Brubaker LS, Saini A, Nguyen TC, Martinez-Vargas M, Lam FW, Yao Q, Loor MM, Rosengart TK, Cruz MA. Aberrant Fibrin Clot Structure Visualized Ex Vivo in Critically Ill Patients With Severe Acute Respiratory Syndrome Coronavirus 2 Infection. Crit Care Med 2022; 50:e557-e568. [PMID: 35170535 PMCID: PMC9112654 DOI: 10.1097/ccm.0000000000005465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
OBJECTIVES Disseminated fibrin-rich microthrombi have been reported in patients who died from COVID-19. Our objective is to determine whether the fibrin clot structure and function differ between critically ill patients with or without COVID-19 and to correlate the structure with clinical coagulation biomarkers. DESIGN A cross-sectional observational study. Platelet poor plasma was used to analyze fibrin clot structure; the functional implications were determined by quantifying clot turbidity and porosity. SETTING ICU at an academic medical center and an academic laboratory. PATIENTS Patients admitted from July 1 to August 1, 2020, to the ICU with severe acute respiratory syndrome coronavirus 2 infection confirmed by reverse transcription-polymerase chain reaction or patients admitted to the ICU with sepsis. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Blood was collected from 36 patients including 26 ICU patients with COVID-19 and 10 ICU patients with sepsis but without COVID-19 at a median of 11 days after ICU admission (interquartile range, 3-16). The cohorts were similar in age, gender, body mass index, comorbidities, Sequential Organ Failure Assessment (SOFA) score, and mortality. More patients with COVID-19 (100% vs 70%; p = 0.003) required anticoagulation. Ex vivo fibrin clots formed from patients with COVID-19 appeared to be denser and to have smaller pores than those from patients with sepsis but without COVID-19 (percent area of fluorescent fibrin 48.1% [SD, 16%] vs 24.9% [SD, 18.8%]; p = 0.049). The turbidity and flow-through assays corroborated these data; fibrin clots had a higher maximum turbidity in patients with COVID-19 compared with patients without COVID-19 (0.168 vs 0.089 OD units; p = 0.003), and it took longer for buffer to flow through these clots (216 vs 103 min; p = 0.003). In patients with COVID-19, d-dimer levels were positively correlated with percent area of fluorescent fibrin (ρ = 0.714, p = 0.047). Denser clots (assessed by turbidity and thromboelastography) and higher SOFA scores were independently associated with delayed clot lysis. CONCLUSIONS We found aberrant fibrin clot structure and function in critically ill patients with COVID-19. These findings may contribute to the poor outcomes observed in COVID-19 patients with widespread fibrin deposition.
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Affiliation(s)
- Lisa S Brubaker
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
| | - Arun Saini
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
- Section of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine/Texas Children's Hospital, Houston, TX
| | - Trung C Nguyen
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
- Section of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine/Texas Children's Hospital, Houston, TX
| | - Marina Martinez-Vargas
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Fong W Lam
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
- Section of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine/Texas Children's Hospital, Houston, TX
| | - Qizhi Yao
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
| | - Michele M Loor
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
| | - Todd K Rosengart
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
| | - Miguel A Cruz
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
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Abstract
Patients with critical illness often display variable hypo- and hypercoagulable sequalae requiring intense monitoring and anticoagulation pharmacotherapy to prevent or treat inappropriate clot formation. It is imperative to understand the various stages of the clotting cascade and where each pharmacotherapy agent exerts its therapeutic effect. Common coagulation tests are utilized to monitor the areas of the clotting cascade and the effects that anticoagulant pharmacotherapy exhibits. Many novel coagulation tests are also in development. The purpose of this narrative review is to evaluate commonly utilized coagulation tests that monitor anticoagulation while in the intensive care unit.
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9
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Viscoelastic Hemostatic Assays: A Primer on Legacy and New Generation Devices. J Clin Med 2022; 11:jcm11030860. [PMID: 35160311 PMCID: PMC8836477 DOI: 10.3390/jcm11030860] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 02/06/2023] Open
Abstract
Viscoelastic hemostatic assay (VHAs) are whole blood point-of-care tests that have become an essential method for assaying hemostatic competence in liver transplantation, cardiac surgery, and most recently, trauma surgery involving hemorrhagic shock. It has taken more than three-quarters of a century of research and clinical application for this technology to become mainstream in these three clinical areas. Within the last decade, the cup and pin legacy devices, such as thromboelastography (TEG® 5000) and rotational thromboelastometry (ROTEM® delta), have been supplanted not only by cartridge systems (TEG® 6S and ROTEM® sigma), but also by more portable point-of-care bedside testing iterations of these legacy devices (e.g., Sonoclot®, Quantra®, and ClotPro®). Here, the legacy and new generation VHAs are compared on the basis of their unique hemostatic parameters that define contributions of coagulation factors, fibrinogen/fibrin, platelets, and clot lysis as related to the lifespan of a clot. In conclusion, we offer a brief discussion on the meteoric adoption of VHAs across the medical and surgical specialties to address COVID-19-associated coagulopathy.
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Jourdi G, Godier A, Lordkipanidzé M, Marquis-Gravel G, Gaussem P. Antiplatelet Therapy for Atherothrombotic Disease in 2022—From Population to Patient-Centered Approaches. Front Cardiovasc Med 2022; 9:805525. [PMID: 35155631 PMCID: PMC8832164 DOI: 10.3389/fcvm.2022.805525] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/06/2022] [Indexed: 12/20/2022] Open
Abstract
Antiplatelet agents, with aspirin and P2Y12 receptor antagonists as major key molecules, are currently the cornerstone of pharmacological treatment of atherothrombotic events including a variety of cardio- and cerebro-vascular as well as peripheral artery diseases. Over the last decades, significant changes have been made to antiplatelet therapeutic and prophylactic strategies. The shift from a population-based approach to patient-centered precision medicine requires greater awareness of individual risks and benefits associated with the different antiplatelet strategies, so that the right patient gets the right therapy at the right time. In this review, we present the currently available antiplatelet agents, outline different management strategies, particularly in case of bleeding or in perioperative setting, and develop the concept of high on-treatment platelet reactivity and the steps toward person-centered precision medicine aiming to optimize patient care.
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Affiliation(s)
- Georges Jourdi
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
- *Correspondence: Georges Jourdi
| | - Anne Godier
- Université de Paris, Innovative Therapies in Haemostasis, INSERM UMR_S1140, Paris, France
- Department of Anesthesiology and Critical Care, AP-HP, Université de Paris, Hôpital Européen Georges Pompidou, Paris, France
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Guillaume Marquis-Gravel
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
| | - Pascale Gaussem
- Université de Paris, Innovative Therapies in Haemostasis, INSERM UMR_S1140, Paris, France
- Service d'Hématologie Biologique, AP-HP, Université de Paris, Hôpital Européen Georges Pompidou, Paris, France
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11
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Sehgal T, Aggarwal M, Baitha U, Gupta G, Prakash B, Gupta A, Kumar G, Biswas A, Khan M, Shalimar. Thromboelastography determined dynamics of blood coagulation and its correlation with complications and outcomes in patients with coronavirus disease 2019. Res Pract Thromb Haemost 2022; 6:e12645. [PMID: 35071969 PMCID: PMC8760607 DOI: 10.1002/rth2.12645] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/26/2021] [Accepted: 12/17/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) causes abnormalities in the hemostatic system, collectively known as COVID-associated coagulopathy. The dynamics of clot formation are best discerned by whole-blood viscoelastic tests, such as thromboelastography (TEG). We aimed to assess the various abnormalities seen on TEG and explored the predictors of outcomes in these patients. METHODS Thromboelastography was performed for 28 patients with COVID-19 using an automated thromboelastogram. The hemostatic condition was categorized as hypercoagulable in 17 (63%), hypocoagulable in 2 (7%), and normal in 8 (30%) based on TEG variables, such as reaction time , time until clot reaches a fixed strength, alpha angle, maximum amplitude, and clotting index. Laboratory parameters and clinical outcomes were compared between hypercoagulable and normal groups. RESULTS Twenty-seven patients with a median age of 50 years (interquartile range, 40-60 years), male-to-female ratio of 0.9:1, median C-reactive protein of 25.7 (10.9-108.8) mg/L, serum ferritin of 693 (317-1031) µg/L, and albumin 2.9 (2.6-3.3) g/dL were included. The median prothrombin time/international normalized ratio and activated partial thromboplastin time were within normal range in the hypercoagulable and normal groups. The severity of COVID-19 was mild in 6 (22.2%), moderate in 2 (7.4%), and severe in 19 (70.4%) patients. Twenty-eight-day mortality among patients with hypocoagulable and hypercoagulable states was higher than normal coagulation status. (log-rank test, P = .002). CONCLUSIONS Hypercoagulable state, together with a severe inflammatory state, is common in patients with COVID-19, despite thromboprophylaxis. TEG assesses coagulation status better than conventional coagulation tests. Coagulation abnormalities are associated with poor outcomes.
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Affiliation(s)
- Tushar Sehgal
- Department of Laboratory MedicineAll India Institute of Medical SciencesNew DelhiIndia
| | - Mukul Aggarwal
- Department of HematologyAll India Institute of Medical SciencesNew DelhiIndia
| | - Upendra Baitha
- Department of MedicineAll India Institute of Medical SciencesNew DelhiIndia
| | - Gaurav Gupta
- Department of MedicineAll India Institute of Medical SciencesNew DelhiIndia
| | - Bindu Prakash
- Department of MedicineAll India Institute of Medical SciencesNew DelhiIndia
| | - Anu Gupta
- Department of NeurologyAll India Institute of Medical SciencesNew DelhiIndia
| | - Ganesh Kumar
- Department of HematologyAll India Institute of Medical SciencesNew DelhiIndia
| | - Ashutosh Biswas
- Department of MedicineAll India Institute of Medical SciencesNew DelhiIndia
| | - Maroof Khan
- Department of Bio‐StatisticsAll India Institute of Medical SciencesNew DelhiIndia
| | - Shalimar
- Department of GastroenterologyAll India Institute of Medical SciencesNew DelhiIndia
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12
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Vuimo TS, Tsarenko SV, Filimonova EV, Seregina EA, Karamzin SS. Correction of Anticoagulant Therapy in Patients with Severe COVID-19 Virus Infection Using a Thrombodynamics Coagulation Assay. Clin Appl Thromb Hemost 2022; 28:10760296221142862. [PMID: 36560917 PMCID: PMC9793037 DOI: 10.1177/10760296221142862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 11/02/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The average frequency of thrombosis in patients with COVID-19 is still high despite low molecular weight heparin (LMWH) prophylactic. Global hemostasis assays, particularly thrombodynamics (TD), known to be sensitive to both hypercoagulation and heparin effects, could potentially be useful for individual management of anticoagulant therapy. METHODS A total of 74 patients with lung involvement >50% were randomized into two groups: Group A (44 patients) received weight-based dosing of LMWH, and Group B (30 patients) received the first LMWH dose by a weight-based dosing protocol and then received an adjusted dose based on TD daily results. The endpoints of the study were thrombosis and bleeding as well as discharge or death of the patient. RESULTS The incidence of thrombosis was 3 times lower in Group B under TD control compared to Group A without TD control: 7% versus 23 respectively (p = .05). The relative risk of thrombosis if the average clot growth rate V in TD exceeded the threshold value of 25 μm/min was 14.3 (p = .0005, 95% confidence interval 3.2-63.7). There were no clinically significant bleeding episodes in Group B while there were 7% in unregulated Group A. Mortality in Group B under TD control was lower than that in Group A without control: 27% versus 36%, respectively (p = .13). CONCLUSIONS The dosing LMWH under thrombodynamics control in severe patients with COVID-19 allows for a significant reduction in thrombotic complications. Long-term hypercoagulation revealed by thrombodynamics (3 and more days) is a strong predictor of thrombosis (AUC = 0.83).
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Affiliation(s)
- Tatiana S. Vuimo
- Center for Theoretical Problems of
Physicochemical Pharmacology RAS, Moscow, Russia
- Dmitry Rogachev National Medical Research
Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Sergey V. Tsarenko
- City Clinical Hospital №52 of Moscow Health care Department, Moscow,
Russia
- Faculty of Fundamental Medicine, Moscow State University, Moscow, Russia
| | | | - Elena A. Seregina
- Center for Theoretical Problems of
Physicochemical Pharmacology RAS, Moscow, Russia
- Dmitry Rogachev National Medical Research
Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Sergey S. Karamzin
- Center for Theoretical Problems of
Physicochemical Pharmacology RAS, Moscow, Russia
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13
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Ankola AA, Bradford VR, Newburger JW, Emani S, Dionne A, Friedman K, Son MB, Henderson LA, Lee PY, Hellinger A, Hawkins B, Ventresco C, Esteso P, VanderPluym CJ. Coagulation profiles and viscoelastic testing in multisystem inflammatory syndrome in children. Pediatr Blood Cancer 2021; 68:e29355. [PMID: 34532964 DOI: 10.1002/pbc.29355] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To characterize viscoelastic testing profiles of children with multisystem inflammatory syndrome in children (MIS-C). METHODS This single-center retrospective review included 30 patients diagnosed with MIS-C from March 1 to September 1, 2020. Thromboelastography (TEG) with platelet mapping was performed in 19 (63%) patients and compared to age- and sex-matched controls prior to cardiac surgery. Relationships between TEG parameters and inflammatory markers were assessed using correlation. RESULTS Patients with MIS-C had abnormal TEG results compared to controls, including decreased kinetic (K) time (1.1 vs. 1.7 minutes, p < .01), increased alpha angle (75.0° vs. 65.7°, p < .01), increased maximum amplitude (70.8 vs. 58.3 mm, p < .01), and decreased lysis in 30 minutes (Ly30) (1.1% vs. 3.7%, p = .03); consistent with increased clot formation rate and strength, and reduced fibrinolysis. TEG maximum amplitude was moderately correlated with erythrocyte sedimentation rate (ESR) (r = 0.60, p = .02), initial platelet count (r = 0.67, p < .01), and peak platelet count (r = 0.51, p = .03). TEG alpha angle was moderately correlated with peak platelet count (r = 0.54, p = .02). Seventeen (57%) patients received aspirin (ASA) and anticoagulation, five (17%) received only ASA, and three (10%) received only anticoagulation. No patients had a symptomatic thrombotic event. Six (20%) patients had a bleeding event, none of which was major. CONCLUSIONS Patients with MIS-C had evidence of hypercoagulability on TEG. Increased ESR and platelets were associated with higher clot strength. Patients were prophylactically treated with ASA or anticoagulation with no symptomatic thrombosis or major bleeding. Further multicenter study is required to characterize the rate of thrombosis and optimal thromboprophylaxis algorithm in this patient population.
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Affiliation(s)
- Ashish A Ankola
- Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Victoria R Bradford
- Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Jane W Newburger
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Sirisha Emani
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Audrey Dionne
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Kevin Friedman
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Mary Beth Son
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Lauren A Henderson
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Amy Hellinger
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Beth Hawkins
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Courtney Ventresco
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Paul Esteso
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA
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14
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Laubscher GJ, Lourens PJ, Venter C, Kell DB, Pretorius E. TEG ®, Microclot and Platelet Mapping for Guiding Early Management of Severe COVID-19 Coagulopathy. J Clin Med 2021; 10:jcm10225381. [PMID: 34830660 PMCID: PMC8621180 DOI: 10.3390/jcm10225381] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 02/08/2023] Open
Abstract
An important component of severe COVID-19 disease is virus-induced endothelilitis. This leads to disruption of normal endothelial function, initiating a state of failing normal clotting physiology. Massively increased levels of von Willebrand Factor (VWF) lead to overwhelming platelet activation, as well as activation of the enzymatic (intrinsic) clotting pathway. In addition, there is an impaired fibrinolysis, caused by, amongst others, increased levels of alpha-(2) antiplasmin. The end result is hypercoagulation (proven by thromboelastography® (TEG®)) and reduced fibrinolysis, inevitably leading to a difficult-to-overcome hypercoagulated physiological state. Platelets in circulation also plays a significant role in clot formation, but they themselves may also drive hypercoagulation when they are overactivated due to the interactions of their receptors with the endothelium, immune cells or circulating inflammatory molecules. From the literature it is clear that the role of platelets in severely ill COVID-19 patients has been markedly underestimated or even ignored. We here highlight the value of early management of severe COVID-19 coagulopathy as guided by TEG®, microclot and platelet mapping. We also argue that the failure of clinical trials, where the efficacy of prophylactic versus therapeutic clexane (low molecular weight heparin (LMWH)) were not always successful, which may be because the significant role of platelet activation was not taken into account during the planning of the trial. We conclude that, because of the overwhelming alteration of clotting, the outcome of any trial evaluating an any single anticoagulant, including thrombolytic, would be negative. Here we suggest the use of the degree of platelet dysfunction and presence of microclots in circulation, together with TEG®, might be used as a guideline for disease severity. A multi-pronged approach, guided by TEG® and platelet mapping, would be required to maintain normal clotting physiology in severe COVID-19 disease.
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Affiliation(s)
| | | | - Chantelle Venter
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch 7602, South Africa;
| | - Douglas B Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch 7602, South Africa;
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 7ZB, UK
- The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
- Correspondence: (D.B.K.); (E.P.)
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch 7602, South Africa;
- Correspondence: (D.B.K.); (E.P.)
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15
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Wang J, Hajizadeh N, Shore-Lesserson L. The Value of Thromboelastography (TEG) in COVID-19 Critical Illness as Illustrated by a Case Series. J Cardiothorac Vasc Anesth 2021; 36:2536-2543. [PMID: 34802831 PMCID: PMC8520442 DOI: 10.1053/j.jvca.2021.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/01/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022]
Abstract
Objective To develop a practical thromboelastograph guided (TEG) anticoagulation protocol to guide the management of COVID-19 critically ill patients. Design An inter disciplinary team reviewed the current literature on hypercoagulability in critically ill COVID-19 patients, clinical management practices and challenges with high rates of thrombotic events despite anticoagulant therapies. Setting The largest tertiary care hospital within the Northwell Health System in New York. Patients COVID-19 invasively mechanically ventilated patients in Medical Intensive Care Unit Settings. Methods TEG was monitored in critically ill COVID-19 patients. Patterns were reviewed to guide the development of a treatment protocol leveraging TEG parameters to select anticoagulant therapy. Three patients are reported to highlight TEG profiles that led to the development of the algorithm. Clinical trajectory and treatment decisions were extracted retrospectively from the Electronic Health Record, with input from the intensivists. Anticoagulant use, laboratory and TEG values, and venous/arterial lower extremity (LE) ultrasound results were recorded. Main Results These patients demonstrated hypercoagulable TEG results despite prophylactic or therapeutic dosages of unfractionated heparin or low-molecular-weight heparin (LMHW). TEG surveillance identified functional fibrinogen and maximum amplitude in high-risk patients with hyper inflammatory markers. Anticoagulation assessment, TEG parameters, and LE ultrasound monitoring for venous and arterial thrombus were used to construct an algorithm to guide and escalate anticoagulant therapy. Conclusions TEG provides patient-specific evidence for a hypercoagulable state in patients receiving all types of anticoagulant therapy. The proposed TEG algorithm guides anticoagulation management decisions to maintain or escalate anticoagulant dose and/or change choice of anticoagulant. A TEG algorithm may help negotiate the potential harm/benefit balance of full-dose anticoagulation in critically ill COVID-19 patients, by allowing for a more individualized approach that goes beyond the review of activated partial thromboplastin time (aPTT) levels.
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Affiliation(s)
- Janice Wang
- Department of Medicine, Division of Pulmonary Critical Care and Sleep Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. Feinstein Institute for Medical Research, 410 Lakeville Rd, Suite 105, New Hyde Park, NY, 11042, USA.
| | - Negin Hajizadeh
- Department of Medicine, Division of Pulmonary Critical Care and Sleep Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, NY, 11030.
| | - Linda Shore-Lesserson
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Vice Chair for Academic Affairs, Director, Cardiovascular Anesthesiology, 300 Community Drive, Manhasset, NY, 11030.
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16
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International COVID-19 thrombosis biomarkers colloquium: COVID-19 diagnostic tests. J Thromb Thrombolysis 2021; 52:992-998. [PMID: 34021852 PMCID: PMC8140326 DOI: 10.1007/s11239-021-02465-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/26/2021] [Indexed: 01/20/2023]
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17
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McVaney KE, Pepe PE, Maloney LM, Bronsky E, Crowe RP, Augustine JJ, Gilliam SO, Asaeda GH, Eckstein M, Mattu A, Fumagalli R, Aufderheide TP, Osterholm MT. The relationship of large city out-of-hospital cardiac arrests and the prevalence of COVID-19. EClinicalMedicine 2021; 34:100815. [PMID: 33997730 PMCID: PMC8102707 DOI: 10.1016/j.eclinm.2021.100815] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/04/2021] [Accepted: 03/15/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Though variable, many major metropolitan cities reported profound and unprecedented increases in out-of-hospital cardiac arrest (OHCA) in early 2020. This study examined the relative magnitude of those increases and their relationship to COVID-19 prevalence. METHODS EMS (9-1-1 system) medical directors for 50 of the largest U.S. cities agreed to provide the aggregate, de-identified, pre-existing monthly tallies of OHCA among adults (age >18 years) occurring between January and June 2020 within their respective jurisdictions. Identical comparison data were also provided for corresponding time periods in 2018 and 2019. Equivalent data were obtained from the largest cities in Italy, United Kingdom and France, as well as Perth, Australia and Auckland, New Zealand. FINDINGS Significant OHCA escalations generally paralleled local prevalence of COVID-19. During April, most U.S. cities (34/50) had >20% increases in OHCA versus 2018-2019 which reflected high local COVID-19 prevalence. Thirteen observed 1·5-fold increases in OHCA and three COVID-19 epicenters had >100% increases (2·5-fold in New York City). Conversely, cities with lesser COVID-19 impact observed unchanged (or even diminished) OHCA numbers. Altogether (n = 50), on average, OHCA cases/city rose 59% during April (p = 0·03). By June, however, after mitigating COVID-19 spread, cities with the highest OHCA escalations returned to (or approached) pre-COVID OHCA numbers while cities minimally affected by COVID-19 during April (and not experiencing OHCA increases), then had marked OHCA escalations when COVID-19 began to surge locally. European, Australian, and New Zealand cities mirrored the U.S. experience. INTERPRETATION Most metropolitan cities experienced profound escalations of OHCA generally paralleling local prevalence of COVID-19. Most of these patients were pronounced dead without COVID-19 testing. FUNDING No funding was involved. Cities provided de-identified aggregate data collected routinely for standard quality assurance functions.
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Affiliation(s)
- Kevin E. McVaney
- Department of Emergency Medicine, University of Colorado School of Medicine, Denver, CO, USA
- Denver Health and Hospital Authority, Denver, CO, USA
| | - Paul E. Pepe
- Dallas County Emergency Medical Services and County Public Safety Agencies, Dallas, TX, USA
- Broward Sheriff's Office, Ft. Lauderdale, FL, USA
- Palm Beach County Fire Rescue, West Palm Beach, FL, USA
- Department of Management, Policy and Community Health, School of Public Health, University of Texas Health Sciences Center, Houston, TX, USA
- Metropolitan EMS Medical Directors Global Alliance, Dallas, TX, USA
| | - Lauren M. Maloney
- Department of Emergency Medicine, Stony Brook University Hospital, Stony Brook, NY, USA
| | | | | | | | - Sheaffer O. Gilliam
- Department of Emergency Medicine, University of Colorado School of Medicine, Denver, CO, USA
- Denver Health and Hospital Authority, Denver, CO, USA
| | | | - Marc Eckstein
- Los Angeles Fire Department, Los Angeles, CA, USA
- Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Amal Mattu
- University of Maryland, Baltimore, MD, USA
| | - Roberto Fumagalli
- Niguarda Hospital, University of Milano-Bicocca, Milan, Italy
- Agenzia Regionale Emergenza Urgenza (AREU), Lombardy, Italy
| | - Tom P. Aufderheide
- Resuscitation Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Michael T. Osterholm
- University of Minnesota Center for Infectious Disease Research and Policy, Minneapolis, MN, USA
| | - Writing group on behalf of the Metropolitan EMS Medical Directors Global Alliance
- Department of Emergency Medicine, University of Colorado School of Medicine, Denver, CO, USA
- Denver Health and Hospital Authority, Denver, CO, USA
- Dallas County Emergency Medical Services and County Public Safety Agencies, Dallas, TX, USA
- Broward Sheriff's Office, Ft. Lauderdale, FL, USA
- Palm Beach County Fire Rescue, West Palm Beach, FL, USA
- Department of Management, Policy and Community Health, School of Public Health, University of Texas Health Sciences Center, Houston, TX, USA
- Metropolitan EMS Medical Directors Global Alliance, Dallas, TX, USA
- Department of Emergency Medicine, Stony Brook University Hospital, Stony Brook, NY, USA
- Colorado Springs Fire Department, Colorado Springs, CO, USA
- ESO, Austin, TX, USA
- Wright State University, Dayton, OH, USA
- Fire Department of New York, New York, NY, USA
- Los Angeles Fire Department, Los Angeles, CA, USA
- Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
- University of Maryland, Baltimore, MD, USA
- Niguarda Hospital, University of Milano-Bicocca, Milan, Italy
- Agenzia Regionale Emergenza Urgenza (AREU), Lombardy, Italy
- Resuscitation Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
- University of Minnesota Center for Infectious Disease Research and Policy, Minneapolis, MN, USA
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18
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Patel PA, Henderson RA, Bolliger D, Erdoes G, Mazzeffi MA. The Year in Coagulation: Selected Highlights from 2020. J Cardiothorac Vasc Anesth 2021; 35:2260-2272. [PMID: 33781668 DOI: 10.1053/j.jvca.2021.02.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 01/28/2023]
Abstract
This is the second annual review in the Journal of Cardiothoracic and Vascular Anesthesia to cover highlights in coagulation for cardiac surgery. The goal of this article is to provide readers with a focused summary from the literature of the prior year's most important coagulation topics. In 2020, this included a discussion covering allogeneic transfusion, antiplatelet and anticoagulant therapy, factor concentrates, coagulation testing, mechanical circulatory support, and the effects of coronavirus disease 2019.
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Affiliation(s)
- Prakash A Patel
- Department of Anesthesiology, Cardiothoracic Division, Yale University School of Medicine, New Haven, CT.
| | - Reney A Henderson
- Department of Anesthesiology, Division of Cardiothoracic Anesthesia, University of Maryland School of Medicine, Baltimore, MD
| | - Daniel Bolliger
- Department of Anesthesiology, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Gabor Erdoes
- Department of Anesthesiology and Pain Medicine, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - Michael A Mazzeffi
- Department of Anesthesiology, Division of Cardiothoracic Anesthesia, University of Maryland School of Medicine, Baltimore, MD; Department of Anesthesiology, Division of Critical Care Medicine, University of Maryland School of Medicine, Baltimore, MD
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19
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The Role of TEG Analysis in Patients with COVID-19-Associated Coagulopathy: A Systematic Review. Diagnostics (Basel) 2021; 11:diagnostics11020172. [PMID: 33530346 PMCID: PMC7911186 DOI: 10.3390/diagnostics11020172] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/20/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19)-associated coagulopathy (CAC), characterized by hypercoagulability and an increased risk of thrombotic complications, is an important consideration in the management of patients with COVID-19. As COVID-19 is a new disease, no standard of care for the diagnosis or management of its associated coagulopathy is yet established. Whole blood viscoelastic tests, such as thromboelastography (TEG® hemostasis analyzer), analyze whole blood to provide a complete overview of the coagulation status. We conducted a systematic review of thromboelastography for management of patients with COVID-19, using MEDLINE (PubMed) and Cochrane databases. TEG® parameter measurements and clinical outcomes data were extracted for analysis. Our review found 15 publications, with overall results showing thromboelastography can identify and assess a hypercoagulable state in patients with COVID-19. Furthermore, utilization of thromboelastography in this patient population was shown to predict thrombotic complications. The benefits of thromboelastography presented here, in addition to advantages compared with laboratory coagulation tests, position thromboelastography as an important opportunity for optimizing diagnosis of CAC and improving patient management in COVID-19. Given that the benefits of thromboelastography have already been demonstrated in several other clinical applications, we anticipate that clinical data from future studies in patients with COVID-19 will further elucidate the optimal use of thromboelastography in this patient population.
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