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Drotarova M, Zolkova J, Belakova KM, Brunclikova M, Skornova I, Stasko J, Simurda T. Basic Principles of Rotational Thromboelastometry (ROTEM ®) and the Role of ROTEM-Guided Fibrinogen Replacement Therapy in the Management of Coagulopathies. Diagnostics (Basel) 2023; 13:3219. [PMID: 37892040 PMCID: PMC10606358 DOI: 10.3390/diagnostics13203219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/28/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023] Open
Abstract
Rotational thromboelastometry (ROTEM) is a viscoelastic method, which provides a graphical and numerical representation of induced hemostasis in whole blood samples. Its ability to quickly assess the state of hemostasis is used in the management of bleeding from a variety of causes. The separate activation of particular parts of hemocoagulation in INTEM, EXTEM, and FIBTEM tests allows for a more comprehensive and faster evaluation of the missing component of hemostasis followed by targeted therapy. One of the most common cause of coagulopathy is trauma-induced coagulopathy. Fibrinogen replacement therapy by ROTEM allows for the use of a standard dosage of fibrinogen, which has been shown to be successful in preventing dilutional coagulopathy following colloid and crystalloid replacement and excessive amount of allogeneic blood transfusions. The best reflection of fibrinogen activity is observed in the FIBTEM assay, where fibrinogen replacement therapy is recommended at an MCF (maximum clot firmness) of FIBTEM < 10 mm and FIBTEM A10 < 7 mm. ROTEM also plays an important role in the diagnostic and management of inherited fibrinogen disorders. These can be manifested by bleeding complications, where changes in the MCF parameter are the most useful tool for assessing the effectiveness of fibrinogen replacement therapy. ROTEM-guided bleeding management algorithms effectively reduce the number of transfusions, healthcare costs, and complications, leading to the improvement of patient safety and overall health.
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Affiliation(s)
| | | | | | | | | | | | - Tomas Simurda
- National Centre of Hemostasis and Thrombosis, Department of Hematology and Transfusiology, Jessenius Faculty of Medicine in Martin, University Hospital in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia; (M.D.); (J.Z.); (K.M.B.); (M.B.); (I.S.); (J.S.)
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Frackiewicz A, Kalaska B, Miklosz J, Mogielnicki A. The methods for removal of direct oral anticoagulants and heparins to improve the monitoring of hemostasis: a narrative literature review. Thromb J 2023; 21:58. [PMID: 37208753 DOI: 10.1186/s12959-023-00501-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/10/2023] [Indexed: 05/21/2023] Open
Abstract
The assessment of hemostasis is necessary to make suitable decisions on the management of patients with thrombotic disorders. In some clinical situations, for example, during thrombophilia screening, the presence of anticoagulants in sample makes diagnosis impossible. Various elimination methods may overcome anticoagulant interference. DOAC-Stop, DOAC-Remove and DOAC Filter are available methods to remove direct oral anticoagulants in diagnostic tests, although there are still reports on their incomplete efficacy in several assays. The new antidotes for direct oral anticoagulants - idarucizumab and andexanet alfa - could be potentially useful, but have their drawbacks. The necessity to remove heparins is also arising as heparin contamination from central venous catheter or therapy with heparin disturbs the appropriate hemostasis assessment. Heparinase and polybrene are already present in commercial reagents but a fully-effective neutralizer is still a challenge for researchers, thus promising candidates remain in the research phase.
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Affiliation(s)
| | - Bartlomiej Kalaska
- Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland.
| | - Joanna Miklosz
- Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland
| | - Andrzej Mogielnicki
- Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland
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Pollock GA, Lo J, Chou H, Kissen MS, Kim M, Zhang V, Betz A, Perlman R. Advanced diagnostic and therapeutic techniques for anaesthetists in thoracic trauma: an evidence-based review. Br J Anaesth 2023; 130:e80-e91. [PMID: 36096943 DOI: 10.1016/j.bja.2022.07.005] [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: 03/01/2022] [Revised: 05/27/2022] [Accepted: 07/02/2022] [Indexed: 01/06/2023] Open
Abstract
Anaesthetists play an important role in the evaluation and treatment of patients with signs of thoracic trauma. Anaesthesia involvement can provide valuable input using both advanced diagnostic and therapeutic interventions. Commonly performed interventions may be complicated in this setting including airway management, damage control resuscitation, and acute pain management. Anaesthetists must consider additional factors including airway injuries, vascular injuries, and coagulopathy when treating this population. This evidence-based review discusses traumatic thoracic injuries with a focus on new interventions and modern anaesthesia techniques. This review further serves to support the early involvement of anaesthetists in the emergency department and other areas where they can provide value to the trauma care pathway.
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Affiliation(s)
- Gabriel A Pollock
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Thoracic Anaesthesia, Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Regional Anaesthesia & Acute Pain Service Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
| | - Jessie Lo
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Regional Anaesthesia & Acute Pain Service Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Henry Chou
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Thoracic Anaesthesia, Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Michael S Kissen
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Thoracic Anaesthesia, Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Regional Anaesthesia & Acute Pain Service Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Michelle Kim
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Vida Zhang
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Thoracic Anaesthesia, Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Trauma Anaesthesia, Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Alexander Betz
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ryan Perlman
- Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Trauma Anaesthesia, Department of Anaesthesia, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Cooper JL, Sharp CR, Boyd CJ, Claus MA, Rossi G. The hemostatic profile of cold-stored whole blood from non-greyhound and greyhound dogs over 42 days. Front Vet Sci 2023; 10:1135880. [PMID: 36937016 PMCID: PMC10019821 DOI: 10.3389/fvets.2023.1135880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/08/2023] [Indexed: 03/06/2023] Open
Abstract
Objectives To compare the hemostatic characteristics of cold-stored whole blood (CSWB) from non-greyhound dogs (NGD) and greyhound dogs (GD) over 42 days of storage, notably, platelet closure time (PCT) (NGD only), manual platelet count (PLT) (GD only), ellagic acid (INTEM) and tissue factor activated (EXTEM) rotational thromboelastometry, prothrombin (PT) and activated partial thromboplastin time (aPTT), fibrinogen concentration (FIB), and the activities of factors (F) FII, FV, FVII, FVIII, FIX, FX, FXIII antigen (FXIII:Ag), and von Willebrand factor antigen (vWF:Ag). Design Whole blood from 10 NGD and 10 GD, was refrigerated in CPD blood bags at 4°C for 42 days. Blood was analyzed before refrigeration (day 0) and at day 1 (d1), 3, 5, 7, 10, 14, 17, 21, 24, 28, 31, 35, 38, and 42. Multivariate linear mixed effects models were created to evaluate coagulation parameters over time and compare NGD and GD. Data are summarized as estimated marginal means with 95% confidence intervals. Significance was set at P < 0.05. Results The PCT for all NGD CSWB was above the device limit by d7. The PLT for GD CSWB did not change during storage. The mean alpha-angle for INTEM and EXTEM decreased to <50% of baseline at d38 and d31 for NGD, and d31 and d17 for GD CSWB. The mean maximum clot firmness (MCF) for INTEM and EXTEM reduced to <50% of baseline at d42 and d28 for both GD and NGD. PT and aPTT for NGD and GD increased over time. For NGD CSWB, the mean FVIII and vWF:Ag activities decreased to <50% of baseline at d7 and d28, respectively, and FIB reached 0.982 g/dL by d24. For GD CSWB, FVIII, FXIII:Ag and FV activities decreased to <50% of baseline by d3, d38, and d38, respectively, and FIB was 0.982 g/dL at baseline. Alpha-angle and MCF for both INTEM and EXTEM, and activities for FII, FV, FIX, FXIII:Ag were significantly lower, and vWF:Ag was significantly higher overall in GD CSWB compared with NGD. A significant difference in the pattern of change over time was detected between NGD and GD in EXTEM alpha-angle, INTEM and EXTEM MCF, FII, and FVIII activities. Conclusions The in vitro viscoelastic parameters of GD and NGD CSWB declines over 42 days, but numerous hemostatic parameters (INTEM and EXTEM alpha-angle and MCF, activity of FII, FV, FV, FVII, FIX, FX, FXIII:Ag, vWF:Ag, and FIB) remain within 50% of baseline for more than 14 days. CSWB from GD compared to NGD has reduced hemostatic activity overall, but a similar pattern of decline for most parameters over time.
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Affiliation(s)
- James L. Cooper
- School of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
| | - Claire R. Sharp
- School of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
- *Correspondence: Claire R. Sharp
| | - Corrin J. Boyd
- School of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
| | - Melissa A. Claus
- School of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
- Perth Veterinary Specialists, Osborne Park, WA, Australia
| | - Gabriel Rossi
- School of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
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Viscoelastic versus conventional coagulation tests to reduce blood product transfusion in patients undergoing liver transplantation: A systematic review and meta-analysis. Eur J Anaesthesiol 2023; 40:39-53. [PMID: 36412263 DOI: 10.1097/eja.0000000000001780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Recent literature suggests viscoelastic test (VET)-guided transfusion management could be associated with reduced blood product administration in patients undergoing liver transplantation. OBJECTIVES To assess the effectiveness of coagulation management guided by VETs compared with conventional coagulation tests (CCTs) in reducing blood product transfusion in patients undergoing liver transplantation. DESIGN Systematic review and meta-analysis of randomised (RCTs) and nonrandomised clinical trials performed according to PRISMA guidelines. The protocol was previously published (PROSPERO: CRD42021230213). DATA SOURCES The Cochrane Central Library, PubMed/MEDLINE, Embase and the Transfusion Evidence Library were searched up to 30 th January 2022. ELIGIBILITY CRITERIA Setting: operating room. Patients: liver transplantation recipients. Intervention: use of VETs versus CCTs. Main outcome measures: the primary outcome was the mean number of transfused units for each blood product including red blood cells (RBCs), fresh frozen plasma (FFP), platelets (PLTs) and cryoprecipitate. Secondary outcomes included mortality rate, intensive care unit (ICU) and hospital length of stay (LOS). RESULTS Seventeen studies ( n = 5345 patients), 15 observational and two RCTs, were included in this review. There was a mean difference reduction in RBCs [mean difference: -1.40, 95% confidence interval (95% CI), -1.87 to -0.92; P < 0.001, I2 = 61%) and FFP units (mean difference: -2.98, 95% CI, -4.61 to -1.35; P = < 0.001; I2 = 98%) transfused in the VETs group compared with the CCTs one. A greater amount of cryoprecipitate was administered in the VETs group (mean difference: 2.71, 95% CI, 0.84 to 4.58; P = 0.005; I2 = 91%). There was no significant difference in the mean number of PLT units, mortality, hospital and ICU-LOS. CONCLUSION Our meta-analysis demonstrated that VETs implementation was associated with reduced RBC and FFP consumption in liver transplantation patients without effects on mortality and hospital and ICU-LOS. The certainty of evidence ranged from moderate to very low. Further well conducted RCTs are needed to improve the certainty of evidence.
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Hartmann J, Hermelin D, Levy JH. Viscoelastic testing: an illustrated review of technology and clinical applications. Res Pract Thromb Haemost 2022; 7:100031. [PMID: 36760779 PMCID: PMC9903681 DOI: 10.1016/j.rpth.2022.100031] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/07/2022] [Accepted: 11/12/2022] [Indexed: 01/26/2023] Open
Abstract
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 50 years old; however, over the past few years, there has been a significant increase in research examining the use of VET. Best practice guidelines for the use of VET exist in both the United States and Europe, particularly for elective cardiac surgery, although recommendations for implementation are somewhat limited in some clinical areas by the lack of studies constituting high-grade evidence. Other challenges to implementation surround validation of the technology in some care settings as well as lack of training. Nevertheless, there is a wide range of potential clinical applications, such as treating coagulopathies in liver disease and transplant surgery, critical care, as well as within obstetrical hemorrhage. In this illustrated review, we provide an overview of viscoelastic testing technology (also called viscoelastic hemostatic assays) and describe how the assays can be used to provide a broad overview of hemostasis from clot formation to clot lysis, while highlighting the contribution of coagulation factors and platelets. We then summarize the major clinical applications for viscoelastic testing, including more recent applications, such as in COVID-19. Each section describes the clinical context, and key publications, followed by a representative algorithm and key guidelines.
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Affiliation(s)
- Jan Hartmann
- Haemonetics Corporation, Boston, Massachusetts, USA
- Correspondence Jan Hartmann, Haemonetics Corporation, Boston, MA 02110, USA. @JanHartmannMD
| | - Daniela Hermelin
- Department of Pathology Saint Louis University School of Medicine, Saint Louis, Missouri, USA
- Medical Affairs, ImpactLife, Davenport, Iowa, USA
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Tumber S, Stondell C, Wilson M, Yang NT, Tafoya S. Reference values in healthy children using the Quantra Hemostasis Analyzer, a novel point of care viscoelastic testing device. Paediatr Anaesth 2022; 32:1370-1371. [PMID: 36177708 PMCID: PMC9828000 DOI: 10.1111/pan.14563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/25/2022] [Accepted: 09/13/2022] [Indexed: 01/12/2023]
Affiliation(s)
- Sundeep Tumber
- Department of AnesthesiologyShriners Children's, Northern CaliforniaSacramentoCaliforniaUSA
| | - Casey Stondell
- Department of AnesthesiologyShriners Children's, Northern CaliforniaSacramentoCaliforniaUSA
| | - Machelle Wilson
- Department of Public Health Sciences, School of MedicineUniversity of California, DavisSacramentoCaliforniaUSA
| | - Nuen Tsang Yang
- Department of Public Health Sciences, School of MedicineUniversity of California, DavisSacramentoCaliforniaUSA
| | - Sampaguita Tafoya
- Department of AnesthesiologyShriners Children's, Northern CaliforniaSacramentoCaliforniaUSA
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Rajsic S, Breitkopf R, Jadzic D, Popovic Krneta M, Tauber H, Treml B. Anticoagulation Strategies during Extracorporeal Membrane Oxygenation: A Narrative Review. J Clin Med 2022; 11:jcm11175147. [PMID: 36079084 PMCID: PMC9457503 DOI: 10.3390/jcm11175147] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/24/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022] Open
Abstract
The development of extracorporeal life support technology has added a new dimension to the care of critically ill patients who fail conventional treatment options. Extracorporeal membrane oxygenation (ECMO)—specialized temporary life support for patients with severe cardiac or pulmonary failure—plays a role in bridging the time for organ recovery, transplant, or permanent assistance. The overall patient outcome is dependent on the underlying disease, comorbidities, patient reaction to critical illness, and potential adverse events during ECMO. Moreover, the contact of the blood with the large artificial surface of an extracorporeal system circuit triggers complex inflammatory and coagulation responses. These processes may further lead to endothelial injury and disrupted microcirculation with consequent end-organ dysfunction and the development of adverse events like thromboembolism. Therefore, systemic anticoagulation is considered crucial to alleviate the risk of thrombosis and failure of ECMO circuit components. The gold standard and most used anticoagulant during extracorporeal life support is unfractionated heparin, with all its benefits and disadvantages. However, therapeutic anticoagulation of a critically ill patient carries the risk of clinically relevant bleeding with the potential for permanent injury or death. Similarly, thrombotic events may occur. Therefore, different anticoagulation strategies are employed, while the monitoring and the balance of procoagulant and anticoagulatory factors is of immense importance. This narrative review summarizes the most recent considerations on anticoagulation during ECMO support, with a special focus on anticoagulation monitoring and future directions.
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Affiliation(s)
- Sasa Rajsic
- Department of Anaesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Robert Breitkopf
- Department of Anaesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Dragana Jadzic
- Anaesthesia and Intensive Care Department, Pain Therapy Service, Cagliari University, 09042 Cagliari, Italy
| | | | - Helmuth Tauber
- Department of Anaesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Benedikt Treml
- Department of Anaesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
- Correspondence: ; Tel.: +43-50504-82231
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Gong J, Zhang Y, Zhang H, Li Q, Ren G, Lu W, Wang J. Evaluation of Blood Coagulation by Optical Vortex Tracking. SENSORS (BASEL, SWITZERLAND) 2022; 22:4793. [PMID: 35808290 PMCID: PMC9269077 DOI: 10.3390/s22134793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Blood coagulation is a complicated dynamic process that maintains the blood's fluid state and prevents uncontrollable bleeding. The real-time monitoring of coagulation dynamics is critical for blood transfusion guidance, emergency management of trauma-induced coagulopathy, perioperative bleeding, and targeted hemostatic therapy. Here, we utilize optical vortex dynamics to detect the blood coagulation dynamic process in a rapid and non-contact manner. To characterize the temporal changes in viscoelastic properties of blood during coagulation, we track the stochastic motion of optical vortices in the time-varying speckles reflected from 100 blood samples with varied coagulation profiles. The mean square displacement (MSD) of the vortices increases nonlinearly with time lag during blood coagulation reminiscent of the particles in viscoelastic fluids. The MSD curves with coagulation time are similar to the tracings of thromboelastography (TEG) during the blood coagulation. The retrieved coagulation parameters, such as reaction time and activated clotting time measured using the optical vortex method, exhibit a close correlation to those parameters acquired from TEG. These results demonstrate the feasibility of the optical vortex method for monitoring blood coagulation at the point of care. Our method is also applicable to measuring the viscoelasticity of complex fluids and turbid soft matters.
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Affiliation(s)
- Jiaxing Gong
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518000, China
| | - Yaowen Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
| | - Hui Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
| | - Qi Li
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518000, China
| | - Guangbin Ren
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
| | - Wenjian Lu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
| | - Jing Wang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (J.G.); (Y.Z.); (H.Z.); (Q.L.); (G.R.); (W.L.)
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518000, China
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Vandenheuvel M, VAN Gompel C, Vandewiele K, DE Kesel PM, Wyffels P, DE Somer F, Devreese KM, Wouters PF. Comparison of coagulation monitoring using ROTEM and Sonoclot devices in cardiac surgery. A single-centre prospective observational study. Minerva Anestesiol 2022; 88:680-689. [PMID: 35315620 DOI: 10.23736/s0375-9393.22.16119-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Viscoelastic tests (VETs) are recommended during cardiac surgery to monitor coagulation status and guide transfusion. We compared the results of two VETs, the Sonoclot Analyzer and the ROTEM Sigma. Agreement between viscoelastic tests' subdiagnoses and overall diagnosis severity was assessed. Correlations with conventional coagulation tests (CCT) and the discriminatory potential of numerical VET outputs for transfusion thresholds was determined. METHODS Single-centre, prospective observational study in a tertiary academic centre. In fifty adult patients undergoing elective cardiac surgery, parallel Sonoclot, ROTEM and CCT analysis was performed before heparin, or after protamine or coagulation product administration. All patients completed the study, resulting in 139 data points. RESULTS Agreement on the severity of coagulation disorders was acceptable (83%), but poor (27%) on the differentiation of the underlying causes. Correlations between ROTEM parameters and CCT were good (post-protamine: FIBTEM A5 (r2 = 0.90 vs fibrinogen) and EXTEM-FIBTEM A5 difference (r2 = 0.81 vs platelet count) ). Sonoclot correlated less (Clot Rate (r2 = 0.25 vs fibrinogen) and Platelet Function (r2 = 0.43 vs platelet count)). This was reflected in the discriminatory potential of these parameters as found by linear mixed modelling. We suggest clinically useful grey zones for VET cutoff interpretation. CONCLUSIONS ROTEM and Sonoclot accord well on the detection of severity of coagulation dysfunction, but not on the diagnosis of the underlying cause. ROTEM correlated more closely with CCT then Sonoclot. We propose a testing strategy that could lead to a cost-effective approach to the bleeding cardiac surgery patient.
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Affiliation(s)
| | - Carla VAN Gompel
- Department of Anaesthesia, University Hospital Ghent, Ghent, Belgium
| | | | - Pieter M DE Kesel
- Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium
| | - Piet Wyffels
- Department of Anaesthesia, University Hospital Ghent, Ghent, Belgium
| | - Filip DE Somer
- Department of Perfusion, University Hospital Ghent, Ghent, Belgium
| | - Katrien M Devreese
- Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Patrick F Wouters
- Department of Anaesthesia, University Hospital Ghent, Ghent, Belgium
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11
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Lee H, Martin‐Stone S, Volod O. Diagnosis and management of new onset severe coagulopathy during after-hours with thromboelastography. Am J Hematol 2022; 97:375-382. [PMID: 34894401 DOI: 10.1002/ajh.26435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 11/07/2022]
Affiliation(s)
- Hannah Lee
- Department of Hematology and Oncology Cedars Sinai Medical Center Los Angeles California USA
| | - Sylvia Martin‐Stone
- Department of Pharmacy Services Cedars Sinai Medical Center Los Angeles California USA
| | - Oksana Volod
- Department of Pathology Cedars Sinai Medical Center Los Angeles California USA
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12
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Kelly DP, Grandin EW, O'Brien KL. How we manage blood product support and coagulation in the adult patient requiring extracorporeal membrane oxygenation. Transfusion 2022; 62:741-750. [PMID: 35170768 DOI: 10.1111/trf.16830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/02/2022] [Accepted: 02/02/2022] [Indexed: 11/29/2022]
Abstract
Use of extracorporeal membrane oxygenation (ECMO) is increasing among critically ill adults with cardiac and/or respiratory failure. Use of ECMO is associated with hemostatic alterations requiring use of anticoagulation and blood product support. There are limited guidelines to direct transfusion management in the adult patient supported with ECMO. The objective of this article is to describe (1) the role of the transfusion service in providing transfusion support and current understanding of transfusion thresholds, (2) the complexities of monitoring anticoagulation, and (3) the consideration regarding additional factor concentrates and antifibrinolytics within the context of ECMO support. The information provided should assist ECMO care teams in informing transfusion and anticoagulation practice while highlighting key areas for future research and collaboration.
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Affiliation(s)
- Daniel P Kelly
- Division of Medical Critical Care, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Edward Wilson Grandin
- Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Kerry L O'Brien
- Division of Laboratory Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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13
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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: 35] [Impact Index Per Article: 17.5] [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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Is it possible to improve prediction of outcome and blood requirements in the severely injured patients by defining categories of coagulopathy? Eur J Trauma Emerg Surg 2022; 48:2751-2761. [PMID: 35118557 DOI: 10.1007/s00068-022-01882-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 01/17/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE It has been suggested to define the Trauma-induced coagulopathy (TIC) with a PTratio threshold of 1.20. We hypothesized that a more pragmatic classification would grade severity according to the PTratio (or corresponding ROTEM clotting time: EXTEM-CT), and that this would correlate better with the need for blood products (BP) and prognosis. METHODS Retrospective analysis of prospectively collected data of 1076 severely injured patients admitted from 01/2011 to 12/2019 in a university hospital. To determine the number of TIC categories and the best PTratio or EXTEM-CT thresholds for mortality at 24-h, a modified Mazumdar approach was used. Multivariate regression analyses were done to describe the relationship between PTratio and ROTEM parameter subclasses with mortality. RESULTS Three thresholds were, respectively, identified for PTratio (1.20, 1.90 and 3.00) and EXTEM-CT (90 s, 130 s, 200 s). The following categories were defined for PTratio: ≤ 1.20 (No TIC), 1.21-1.90 (Moderate TIC), 1.91-3.00 (severe TIC), > 3.00 (major TIC); and for EXTEM-CT: < 91 s (no TIC), 91-130 s (moderate TIC), 131-200 s (severe TIC) and > 200 s (major TIC). We observed that when the PTratio (or EXTEM-CT) increased, mortality and BP requirements increased. After multiple adjustments, we observed that each subclass of PTratio and EXTEM-CT was independently associated with mortality at 24-h. CONCLUSION In this study, we have described a pragmatic classification of coagulopathy utilizing PTratio and EXTEM-CT where increasing severity was associated with prognosis and the amount of BP administered. This could allow clinicians to better predict the outcome and anticipate the need for blood products.
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David JS, Lambert A, Taverna XJ, Incagnoli P, Geay-Baillat MO, Vassal O, Friggeri A, Inaba K. Which injured patients with moderate fibrinogen deficit need fibrinogen supplementation? Scand J Trauma Resusc Emerg Med 2021; 29:174. [PMID: 34952618 PMCID: PMC8709958 DOI: 10.1186/s13049-021-00988-x] [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: 09/03/2021] [Accepted: 12/13/2021] [Indexed: 11/10/2022] Open
Abstract
Background In severely injured patients, fibrinogen supplementation is recommended when fibrinogenemia is < 1.5 g L−1, but some teams have suggested to use higher thresholds (fibrinogenemia < 2.0 g L−1 or FIBTEM clot amplitude at 5 min (A5) values < 11 mm). The goal of this study was to specify in patients with a moderate fibrinogen deficit (MFD) whether some admission characteristics would be associated with fibrinogen administration at 24 h. Methods Prospective analysis of retrospectively collected data from a trauma registry (01/2011–12/2019). MFD-C was defined by a fibrinogenemia 1.51–1.99 g L−1 or the corresponding FIBTEM-A5 values (MFD-A5) that were determined from linear regression and ROC curve analysis. Administration of fibrinogen were described according to the following admission parameters: shock index (SI) > 1, hemoglobin level < 110 g L−1 (HemoCue®), and base deficit > 5 mEq L−1. Data are expressed as count (%), median [IQR]. Results 1076 patients were included in the study and 266 (27%) had MFD-C, among them, 122/266 (46%) received fibrinogen. Patients with MFD-C who received fibrinogen were more severely injured (ISS: 27 [19–36] vs. 24 [17–29]) and had more impaired vital signs (base deficit: 5.4 [3.6–7.8] vs. 3.8 [2.0–6.0]). Linear regression analysis found a positive correlation between fibrinogen level and FIBTEM-A5 (r: 0.805). For a fibrinogen level < 1.5 g L−1 and < 2.0 g L−1, FIBTEM-A5 thresholds were 6 mm (sensitivity 85%, specificity 83%, AUC: 0.934) and 9 mm (sensitivity 84%, specificity 69%, AUC: 0.874), respectively. MFD-A5 values (185 (27%) patients) were defined as a FIBTEM-A5 between 7 and 9 mm. More than 50% of MFD-C patients presenting a SI > 1, a hemoglobin level < 110 g L−1, or a base deficit > 5.0 mEq L−1 received fibrinogen. The relative risk [95% CI] for fibrinogen administration (SI > 1) were 1.39 [1.06–1.82] for MFD-C, and 2.17 [1.48–3.19] for MFD-A5. Results were not modified after adjustment on the ISS. Conclusions We have shown in this study an association between shock parameters and fibrinogen administration. Further studies are needed to determine how these parameters may be used to guide fibrinogen administration in trauma patients with MFD.
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Affiliation(s)
- Jean-Stephane David
- Service d'anesthésie-réanimation, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495, Pierre Benite, France. .,Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France. .,Research on Healthcare Performance (RESHAPE), INSERM U1290, Université Claude Bernard Lyon 1, Lyon, France. .,Service d'Anesthésie Réanimation, Centre Hospitalier Lyon Sud, 69495, Pierre Bénite cedex, France.
| | - Aline Lambert
- Service d'anesthésie-réanimation, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495, Pierre Benite, France.,Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Xavier-Jean Taverna
- Service d'anesthésie-réanimation, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69008, Lyon, France
| | - Pascal Incagnoli
- Service des Urgences - SAMU, Hôpital Universitaire de Dijon, Dijon, France
| | - Marie-Odile Geay-Baillat
- Laboratoire d'Hémostase, Hôpital Lyon Sud, Hospices Civils de Lyon, 69495, Pierre Benite, France
| | - Olivia Vassal
- Service d'anesthésie-réanimation, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495, Pierre Benite, France.,Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Arnaud Friggeri
- Service d'anesthésie-réanimation, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495, Pierre Benite, France.,Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Kenji Inaba
- Division of Trauma and Critical Care, Department of Surgery, LAC + USC Medical Center, University of Southern California, Los Angeles, CA, USA
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Tangcheewinsirikul N, Moonla C, Uaprasert N, Pittayanon R, Rojnuckarin P. Viscoelastometric versus standard coagulation tests to guide periprocedural transfusion in adults with cirrhosis: A meta-analysis of randomized controlled trials. Vox Sang 2021; 117:553-561. [PMID: 34911140 DOI: 10.1111/vox.13225] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/23/2021] [Accepted: 11/08/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Due to rebalanced haemostasis in cirrhosis, viscoelastometric testing (VET) is more accurate than standard coagulation tests (SCTs) in preprocedural haemostatic evaluation, resulting in decreased unnecessary transfusion. We aimed to determine the impact of VET-guided strategy on postprocedural bleeding, periprocedural transfusion rates and quantities, transfusion-related adverse events (TRAEs), lengths of stay (LOS) and mortality from randomized controlled trials (RCTs) of cirrhotic patients. METHODS PubMed and EMBASE were searched for RCTs comparing VET-guided with SCT-guided transfusion in cirrhotic adults undergoing esophagogastroduodenoscopy, liver transplantation or other invasive interventions. Using random-effects models, the pooled risk ratios (RRs) and/or mean differences (MDs) of postprocedural bleeding-free events and the other outcomes were estimated alongside 95% confidence intervals (CIs). RESULTS Of seven included RCTs (n = 421; 72.2% men; mean age 49.1 years), VET-guided transfusion did not change postprocedural bleeding-free statuses (RR 1.05; 95% CI 0.94-1.17). However, VET-based algorithms decreased the rates of fresh frozen plasma (FFP; RR 0.52; 95% CI 0.35-0.77) and platelet transfusions (RR 0.34; 95% CI 0.16-0.73), the quantities of transfused FFP (MD -1.39 units; 95% CI -2.18 to -0.60), platelets (MD -1.06 units; 95% CI -2.01 to -0.12) and cryoprecipitate (MD -7.13 units; 95% CI -14.20 to -0.07) and the risk of TRAEs (RR 0.42; 95% CI 0.27-0.65). The overall mortality rates and LOS were not significantly different between two groups. CONCLUSION Compared with conventional SCT-guided, VET-guided strategy decreases periprocedural plasma and platelet transfusions and TRAEs, without increasing haemorrhagic complications, LOS or mortality in cirrhosis.
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Affiliation(s)
- Nuanrat Tangcheewinsirikul
- Division of Haematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand.,Research Unit in Translational Haematology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Chatphatai Moonla
- Research Unit in Translational Haematology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand.,Division of General Internal Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Noppacharn Uaprasert
- Division of Haematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand.,Research Unit in Translational Haematology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Rapat Pittayanon
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Ponlapat Rojnuckarin
- Division of Haematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand.,Research Unit in Translational Haematology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
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Abstract
From preoperative medications to intraoperative needs to postoperative thromboprophylaxis, anticoagulants are encountered throughout the perioperative period. This review focuses on coagulation testing clinicians utilize to monitor the effects of these medications.
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Lucas F, Stecker MS, Pozdnyakova O, Connors JM, Battinelli EM. Rivaroxaban-calibrated chromogenic anti-Xa assay in cirrhosis: Use to rule out disseminated intravascular coagulation. Res Pract Thromb Haemost 2021; 5:e12594. [PMID: 34646974 PMCID: PMC8500831 DOI: 10.1002/rth2.12594] [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: 07/05/2021] [Revised: 08/08/2021] [Accepted: 08/11/2021] [Indexed: 11/13/2022] Open
Abstract
Peritoneovenous shunts (PVSs) are used to relieve ascites in cirrhosis. Disseminated intervascular coagulation (DIC) is a complication of PVSs requiring immediate PVS removal. We report a patient who developed new elevations of prothrombin time (PT) and activated partial thromboplastin time (aPTT) 6 hours after PVS placement, concerning for new-onset DIC. We address the key clinical question of distinguishing DIC from rivaroxaban effect on labs. The patient took rivaroxaban 3 hours after PVS placement, suggesting rivaroxaban effect. Rivaroxaban-calibrated anti-Xa level was in the expected treatment range. Over 12 hours, coagulation labs and rivaroxaban levels declined, with no evidence of DIC. The sudden PT/aPTT increase was attributed to rivaroxaban, however, the distinction between DIC and rivaroxaban effect was possible only with the rapid availability of rivaroxaban levels. While there are no US Food and Drug Administration-approved tests for rivaroxaban levels in the United States, this case demonstrates they can have significant clinical impact, encouraging more widespread adaptation of these assays.
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Affiliation(s)
- Fabienne Lucas
- Department of PathologyBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Michael S. Stecker
- Division of Angiography and Interventional RadiologyDepartment of RadiologyBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Olga Pozdnyakova
- Department of PathologyBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Jean M. Connors
- Division of HematologyDepartment of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Elisabeth M. Battinelli
- Division of HematologyDepartment of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
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Qiao J, Ray B, Wians F, Abadie J. Transfusion management of trauma from the 2019 El Paso mass shooting incident. Vox Sang 2021; 117:299-312. [PMID: 34558091 DOI: 10.1111/vox.13206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/31/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Mortality rates, transfusion ratios, trauma management logistics, and assault characteristics from the El Paso mass shooting incident (MSI) are evaluated in comparison to other MSIs. In 2019, El Paso, TX experienced the eighth-deadliest MSIs in modern US history. In this 21st mass killing in the United States of 2019, 19 people died immediately, and four of 27 injured, later died from ballistic injuries. MATERIALS AND METHODS We examined the victims' injuries, pre-hospital treatments, transfusions, rotational thromboelastometry (ROTEM) interpretation, tranexamic acid (TXA) use, and compared El Paso's outcomes with other MSIs. RESULTS Fifteen casualties were treated for bullet injuries at University Medical Center (UMC). Three were in critical condition; one died during surgery. Of the remaining victims, two were guarded, and the remaining ten in stable condition. Anatomic trauma locations included chest, abdomen, hip, breast, thigh and arm. Haemostatic agents and TXA were administered to arriving patients. Seven casualties receiving blood products were administered 95 units at UMC (45 red blood cells [RBC], 38 fresh frozen plasma [FFP], 8 platelets and 4 cryoprecipitate). ROTEM guided mass transfusion decisions in three patients. Out of seven MSIs reviewed, El Paso had the highest mortality rate (50.0%) and lowest RBC:FFP:admission ratio (1.18 at UMC). CONCLUSION We report the greatest proportion of transfusions per admission for an MSI and are first to discuss ROTEM roles to guide transfusion and manage coagulopathy during an MSI. This case highlights the severity and impact of MSIs on victims and requirements to follow established transfusion protocols with adjunct use of ROTEM, TXA and haemostatic agents.
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Affiliation(s)
- Jesse Qiao
- Department of Pathology, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Bradford Ray
- Patient Blood Management and Research, University Medical Center, El Paso, TX, USA
| | - Frank Wians
- Department of Pathology, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Jude Abadie
- Department of Pathology, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
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Ten Cate H. Thrombosis: Grand Challenges Ahead! Front Cardiovasc Med 2021; 8:637005. [PMID: 34017864 PMCID: PMC8129168 DOI: 10.3389/fcvm.2021.637005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/29/2021] [Indexed: 12/22/2022] Open
Affiliation(s)
- Hugo Ten Cate
- Thrombosis Expertise Center, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, Netherlands.,Center for Thrombosis and Haemostasis, University Medical Center of Gutenberg University, Mainz, Germany
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