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Cannata G, Mariotti Zani E, Argentiero A, Caminiti C, Perrone S, Esposito S. TEG ® and ROTEM ® Traces: Clinical Applications of Viscoelastic Coagulation Monitoring in Neonatal Intensive Care Unit. Diagnostics (Basel) 2021; 11:1642. [PMID: 34573982 PMCID: PMC8465234 DOI: 10.3390/diagnostics11091642] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/28/2021] [Accepted: 09/04/2021] [Indexed: 12/14/2022] Open
Abstract
The concentration of the majority of hemostatic proteins differs considerably in early life, especially in neonates compared to adulthood. Knowledge of the concept of developmental hemostasis is an essential prerequisite for the proper interpretation of conventional coagulation tests (CCT) and is critical to ensure the optimal diagnosis and treatment of hemorrhagic and thrombotic diseases in neonatal age. Viscoelastic tests (VETs) provide a point-of-care, real-time, global, and dynamic assessment of the mechanical properties of the coagulation system with the examination of both cellular and plasma protein contributions to the initiation, formation, and lysis of clots. In this work, we provide a narrative review of the basic principles of VETs and summarize current evidence regarding the two most studied point-of-care VETs, thromboelastography (TEG®) and rotational thromboelastometry (ROTEM®), in the field of neonatal care. A literature analysis shows that viscoelastic hemostatic monitoring appears to be a useful additive technique to CCT, allowing targeted therapy to be delivered quickly. These tools may allow researchers to determine the neonatal coagulation profile and detect neonatal patients at risk for postoperative bleeding, coagulation abnormalities in neonatal sepsis, and other bleeding events in a timely manner, guiding transfusion therapies using the goal-oriented transfusion algorithm. However, diagnosis and treatment algorithms incorporating VETs for neonatal patients in a variety of clinical situations should be developed and applied to improve clinical outcomes. Further studies should be performed to make routinary diagnostic and therapeutic application possible for the neonatal population.
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Affiliation(s)
- Giulia Cannata
- Pediatric Clinic, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, via Gramsci 14, 43126 Parma, Italy; (G.C.); (E.M.Z.); (A.A.)
| | - Elena Mariotti Zani
- Pediatric Clinic, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, via Gramsci 14, 43126 Parma, Italy; (G.C.); (E.M.Z.); (A.A.)
| | - Alberto Argentiero
- Pediatric Clinic, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, via Gramsci 14, 43126 Parma, Italy; (G.C.); (E.M.Z.); (A.A.)
| | - Caterina Caminiti
- Research and Innovation Unit, University Hospital of Parma, via Gramsci 14, 43126 Parma, Italy;
| | - Serafina Perrone
- Neonatology Unit, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, via Gramsci 14, 43126 Parma, Italy;
| | - Susanna Esposito
- Pediatric Clinic, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, via Gramsci 14, 43126 Parma, Italy; (G.C.); (E.M.Z.); (A.A.)
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Giani M, Russotto V, Pozzi M, Forlini C, Fornasari C, Villa S, Avalli L, Rona R, Foti G. Thromboelastometry, Thromboelastography, and Conventional Tests to Assess Anticoagulation During Extracorporeal Support: A Prospective Observational Study. ASAIO J 2021; 67:196-200. [PMID: 33512915 DOI: 10.1097/mat.0000000000001196] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Optimal anticoagulation monitoring in patients with extracorporeal membrane oxygenation (ECMO) is fundamental to avoid hemorrhagic and thromboembolic complications. Besides conventional coagulation tests, there is growing interest in the use of viscoelastic hemostatic assays (VHA), in particular of tromboelastography (TEG). Evidence on the use of rotational thromboelastometry (ROTEM) is lacking in this setting. The aim of the study was to evaluate ROTEM as a tool for assessing hemostasis during ECMO, by comparing it to TEG and conventional coagulation assays. We conducted a prospective, observational, single-center study on adult patients on ECMO support anticoagulated with unfractioned heparin (UFH). Kaolin reaction time (R, min) for TEG and INTEM clotting time (CT, sec) for ROTEM were analyzed and compared with conventional coagulation tests. In the study period, we included 25 patients on ECMO support (14 V-A and 11 V-V); 84 data points were available for the analysis. Median UFH infusion rate was 15 [11-18] IU/min/kg. Median values for activated partial thromboplastin time (aPTT) ratio, Kaolin TEG R time, and INTEM CT were 1.44 [1.21-1.7], 22 [13-40] min, and 201 [183-225] sec, respectively. INTEM CT (ROTEM) showed a moderate correlation with standard coagulation tests (R2 = 0.34 and 0.3 for aPTT and activated clotting time (ACT), respectively, p < 0.001). No significant correlation was found between INTEM CT and Kaolin R time (R2 = 0.01). Further studies are needed to identify an appropriate anticoagulation target for ROTEM during ECMO.
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Affiliation(s)
- Marco Giani
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
- Università degli Studi di Milano-Bicocca, Dipartimento di Medicina e Chirurgia, Monza, Italy
| | - Vincenzo Russotto
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
- Università degli Studi di Milano-Bicocca, Dipartimento di Medicina e Chirurgia, Monza, Italy
| | - Matteo Pozzi
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
| | - Clarissa Forlini
- Università degli Studi di Milano-Bicocca, Dipartimento di Medicina e Chirurgia, Monza, Italy
| | - Chiara Fornasari
- Università degli Studi di Milano-Bicocca, Dipartimento di Medicina e Chirurgia, Monza, Italy
| | - Silvia Villa
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
| | - Leonello Avalli
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
| | - Roberto Rona
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
| | - Giuseppe Foti
- From the ASST Monza, Ospedale San Gerardo, Dipartimento di Emergenza-Urgenza, Monza, Italy
- Università degli Studi di Milano-Bicocca, Dipartimento di Medicina e Chirurgia, Monza, Italy
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Abstract
Two of the most commonly used viscoelastic hemostatic assays, thromboelastometry (ROTEM) and thrombelastography (TEG), have proven to decrease allogenic blood transfusions with cost reduction and possibly decrease mortality and morbidity in cardiac, trauma, and other bleeding patients. This article compares the two devices to provide guidance on the selection and use of these monitoring systems. Their second-generation assays, TEG 6S and ROTEM Sigma, are also discussed.
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Affiliation(s)
- Tetsuro Sakai
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, USA -
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Peng HT, Nascimento B, Tien H, Callum J, Rizoli S, Rhind SG, Beckett A. A comparative study of viscoelastic hemostatic assays and conventional coagulation tests in trauma patients receiving fibrinogen concentrate. Clin Chim Acta 2019; 495:253-262. [DOI: 10.1016/j.cca.2019.04.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 03/27/2019] [Accepted: 04/15/2019] [Indexed: 12/13/2022]
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Goal-directed hemostatic resuscitation for trauma induced coagulopathy: Maintaining homeostasis. J Trauma Acute Care Surg 2019; 84:S35-S40. [PMID: 29334568 DOI: 10.1097/ta.0000000000001797] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tien H, Peng HT, Nascimento B, Callum J, Rhind SG, Beckett A. A Comparative Analysis of Functional Fibrinogen Assays using TEG and ROTEM in Trauma Patients Enrolled in the FiiRST Trial. ACTA ACUST UNITED AC 2018. [DOI: 10.5005/jp-journals-10030-1217] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Salinas D. Viscoelastic Studies: Effective Tools for Trauma and Surgical Resuscitation Efforts. AORN J 2017; 105:370-383. [PMID: 28336026 DOI: 10.1016/j.aorn.2017.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/12/2016] [Accepted: 01/27/2017] [Indexed: 11/15/2022]
Abstract
Trauma-induced coagulopathy (TIC) is an abrupt disruption of all hemostatic components of coagulation resulting from severe tissue injury and hypoperfusion. The effective management of TIC has remained elusive to clinicians using traditional laboratory methods, challenging efforts to improve outcomes related to uncontrolled bleeding. Recent initiatives have aimed to reduce TIC-associated morbidity and mortality, further invoking trauma experts to explore innovative modalities in the field of viscoelastic studies, such as thromboelastography (TEG) and rotational thromboelastometry (ROTEM). These tests are able to guide proper blood product administration more effectively during trauma and surgical resuscitation compared with conventional laboratory tests. Although TEG and ROTEM are similar tests, inherent differences in their features produce variation in output results. This article calls on the perioperative clinician to evaluate TEG and ROTEM tests and consider their implementation based on the benefits of their application to clinical practice.
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Schmidt DE, Majeed A, Bruzelius M, Odeberg J, Holmström M, Ågren A. A prospective diagnostic accuracy study evaluating rotational thromboelastometry and thromboelastography in 100 patients with von Willebrand disease. Haemophilia 2016; 23:309-318. [DOI: 10.1111/hae.13121] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2016] [Indexed: 01/15/2023]
Affiliation(s)
- D. E. Schmidt
- Division of Haematology; Department of Medicine; Coagulation Unit; Karolinska University Hospital and Karolinska Institutet; Stockholm Sweden
- University Medical Center Utrecht; Utrecht The Netherlands
| | - A. Majeed
- Division of Haematology; Department of Medicine; Coagulation Unit; Karolinska University Hospital and Karolinska Institutet; Stockholm Sweden
- Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden
| | - M. Bruzelius
- Division of Haematology; Department of Medicine; Coagulation Unit; Karolinska University Hospital and Karolinska Institutet; Stockholm Sweden
| | - J. Odeberg
- Division of Haematology; Department of Medicine; Coagulation Unit; Karolinska University Hospital and Karolinska Institutet; Stockholm Sweden
| | - M. Holmström
- Division of Haematology; Department of Medicine; Coagulation Unit; Karolinska University Hospital and Karolinska Institutet; Stockholm Sweden
| | - A. Ågren
- Division of Haematology; Department of Medicine; Coagulation Unit; Karolinska University Hospital and Karolinska Institutet; Stockholm Sweden
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Junge HK, Ringer SK, Mayer N, Schwarzwald CC. Assessment of method reliability and determination of reference intervals for rotational thromboelastometry in horses. J Vet Emerg Crit Care (San Antonio) 2016; 26:691-703. [DOI: 10.1111/vec.12515] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 03/15/2016] [Accepted: 04/07/2016] [Indexed: 01/28/2023]
Affiliation(s)
- Hannah K. Junge
- Clinic for Equine Internal Medicine; University of Zurich; Zurich Switzerland
| | - Simone K. Ringer
- Equine Department, Vetsuisse Faculty; University of Zurich; Zurich Switzerland
| | - Nathalie Mayer
- Equine Department, Vetsuisse Faculty; University of Zurich; Zurich Switzerland
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Hans GA, Besser MW. The place of viscoelastic testing in clinical practice. Br J Haematol 2016; 173:37-48. [DOI: 10.1111/bjh.13930] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Gregory A. Hans
- Department of Anaesthesia and Intensive Care Medicine; CHU of Liege; Liege Belgium
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A comparative study of tissue factor and kaolin on blood coagulation assays using rotational thromboelastometry and thromboelastography. Blood Coagul Fibrinolysis 2016; 27:31-41. [DOI: 10.1097/mbc.0000000000000381] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mitrophanov AY, Rosendaal FR, Reifman J. Mechanistic Modeling of the Effects of Acidosis on Thrombin Generation. Anesth Analg 2015; 121:278-88. [PMID: 25839182 PMCID: PMC4885548 DOI: 10.1213/ane.0000000000000733] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Supplemental Digital Content is available in the text. Published ahead of print April 2, 2015 BACKGROUND: Acidosis, a frequent complication of trauma and complex surgery, results from tissue hypoperfusion and IV resuscitation with acidic fluids. While acidosis is known to inhibit the function of distinct enzymatic reactions, its cumulative effect on the blood coagulation system is not fully understood. Here, we use computational modeling to test the hypothesis that acidosis delays and reduces the amount of thrombin generation in human blood plasma. Moreover, we investigate the sensitivity of different thrombin generation parameters to acidosis, both at the individual and population level. METHODS: We used a kinetic model to simulate and analyze the generation of thrombin and thrombin–antithrombin complexes (TAT), which were the end points of this study. Large groups of temporal thrombin and TAT trajectories were simulated and used to calculate quantitative parameters, such as clotting time (CT), thrombin peak time, maximum slope of the thrombin curve, thrombin peak height, area under the thrombin trajectory (AUC), and prothrombin time. The resulting samples of parameter values at different pH levels were compared to assess the acidosis-induced effects. To investigate intersubject variability, we parameterized the computational model using the data on clotting factor composition for 472 subjects from the Leiden Thrombophilia Study. To compare acidosis-induced relative parameter changes in individual (“virtual”) subjects, we estimated the probabilities of relative change patterns by counting the pattern occurrences in our virtual subjects. Distribution overlaps for thrombin generation parameters at distinct pH levels were quantified using the Bhattacharyya coefficient. RESULTS: Acidosis in the range of pH 6.9 to 7.3 progressively increased CT, thrombin peak time, AUC, and prothrombin time, while decreasing maximum slope of the thrombin curve and thrombin peak height (P < 10–5). Acidosis delayed the onset and decreased the amount of TAT generation (P < 10–5). As a measure of intrasubject variability, maximum slope of the thrombin curve and CT displayed the largest and second-largest acidosis-induced relative changes, and AUC displayed the smallest relative changes among all thrombin generation parameters in our virtual subject group (1-sided 95% lower confidence limit on the fraction of subjects displaying the patterns, 0.99). As a measure of intersubject variability, the overlaps between the maximum slope of the thrombin curve distributions at acidotic pH levels with the maximum slope of the thrombin curve distribution at physiological pH level systematically exceeded analogous distribution overlaps for CT, thrombin peak time, and prothrombin time. CONCLUSIONS: Acidosis affected all quantitative parameters of thrombin and TAT generation. While maximum slope of the thrombin curve showed the highest sensitivity to acidosis at the individual-subject level, it may be outperformed by CT, thrombin peak time, and prothrombin time as an indicator of acidosis at the subject-group level.
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Affiliation(s)
- Alexander Y Mitrophanov
- From the *DoD Biotechnology High Performance Computing Software Applications Institute (BHSAI); †Telemedicine and Advanced Technology Research Center; U.S. Army Medical Research and Materiel Command, Ft. Detrick, MD; and Departments of ‡Clinical Epidemiology and §Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
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Abstract
PURPOSE OF REVIEW There exists an imbalance between our understanding of the physiology of the blood coagulation process and the translation of this understanding into useful assays for clinical application. As technology advances, the capabilities for merging the two areas have become more attainable. Global assays have advanced our understanding of the dynamics of the blood coagulation process beyond end point assays and are at the forefront of implementation in the clinic. RECENT FINDINGS We will review recent advances in the main global assays with a focus on thrombin generation that have potential for clinical utility. These assays include direct (thrombogram, whole blood, purified systems) and indirect empirical measures of thrombin generation (thromboelastography) and mechanism-based computational models that use plasma composition data from individuals to generate thrombin generation profiles. SUMMARY Empirical thrombin generation assays (direct and indirect) and computational modeling of thrombin generation have greatly advanced our understanding of the hemostatic balance. Implementation of these types of assays and visualization approaches in the clinic will potentially provide a basis for the development of individualized patient care. Advances in both empirical and computational global assays have made the goal of predicting precrisis changes in an individual's hemostatic state one step closer.
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Müller MCA, Balvers K, Binnekade JM, Curry N, Stanworth S, Gaarder C, Kolstadbraaten KM, Rourke C, Brohi K, Goslings JC, Juffermans NP. Thromboelastometry and organ failure in trauma patients: a prospective cohort study. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2014; 18:687. [PMID: 25539910 PMCID: PMC4305250 DOI: 10.1186/s13054-014-0687-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 11/25/2014] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Data on the incidence of a hypercoagulable state in trauma, as measured by thromboelastometry (ROTEM), is limited and the prognostic value of hypercoagulability after trauma on outcome is unclear. We aimed to determine the incidence of hypercoagulability after trauma, and to assess whether early hypercoagulability has prognostic value on the occurrence of multiple organ failure (MOF) and mortality. METHODS This was a prospective observational cohort study in trauma patients who met the highest trauma level team activation. Hypercoagulability was defined as a G value of ≥ 11.7 dynes/cm(2) and hypocoagulability as a G value of <5.0 dynes/cm(2). ROTEM was performed on admission and 24 hours later. RESULTS A total of 1,010 patients were enrolled and 948 patients were analyzed. Median age was 38 (interquartile range (IQR) 26 to 53), 77% were male and median injury severity score was 13 (IQR 8 to 25). On admission, 7% of the patients were hypercoagulable and 8% were hypocoagulable. Altogether, 10% of patients showed hypercoagulability within the first 24 hours of trauma. Hypocoagulability, but not hypercoagulability, was associated with higher sequential organ failure assessment scores, indicating more severe MOF. Mortality in patients with hypercoagulability was 0%, compared to 7% in normocoagulable and 24% in hypocoagulable patients (P <0.001). EXTEM CT, alpha and G were predictors for occurrence of MOF and mortality. CONCLUSIONS The incidence of a hypercoagulable state after trauma is 10% up to 24 hours after admission, which is broadly comparable to the rate of hypocoagulability. Further work in larger studies should define the clinical consequences of identifying hypercoagulability and a possible role for very early, targeted use of anticoagulants.
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Affiliation(s)
- Marcella C A Müller
- Department of Intensive Care Medicine, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Kirsten Balvers
- Department of Intensive Care Medicine, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. .,Department of Surgery, Trauma Unit, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Jan M Binnekade
- Department of Intensive Care Medicine, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Nicola Curry
- National Health Service Blood and Transplant/Hematology, John Radcliffe Hospital, Headley Way, Oxford, OX3 9BQ, UK.
| | - Simon Stanworth
- National Health Service Blood and Transplant/Hematology, John Radcliffe Hospital, Headley Way, Oxford, OX3 9BQ, UK.
| | - Christine Gaarder
- Department of Traumatology, Oslo University Hospital, Ullevaal, Nydalen, N-0424, Oslo, Norway.
| | - Knut M Kolstadbraaten
- Department of Traumatology, Oslo University Hospital, Ullevaal, Nydalen, N-0424, Oslo, Norway.
| | - Claire Rourke
- Trauma Sciences, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University, Turner Street, London, E1 2AD, UK.
| | - Karim Brohi
- Trauma Sciences, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University, Turner Street, London, E1 2AD, UK.
| | - J Carel Goslings
- Department of Surgery, Trauma Unit, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Nicole P Juffermans
- Department of Intensive Care Medicine, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
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Comparison of three point-of-care testing devices to detect hemostatic changes in adult elective cardiac surgery: a prospective observational study. BMC Anesthesiol 2014; 14:80. [PMID: 25276093 PMCID: PMC4179787 DOI: 10.1186/1471-2253-14-80] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/21/2014] [Indexed: 11/19/2022] Open
Abstract
Background Bleeding complications in cardiac surgery may lead to increased morbidity and mortality. Traditional blood coagulation tests are not always suitable to detect rapid changes in the patient's coagulation status. Point-of-care instruments such as the TEG (thromboelastograph) and RoTEM (thromboelastometer) have been shown to be useful as a guide for the clinician in the choice of blood products and they may lead to a reduction in the need for blood transfusion, contributing to better patient blood management. Methods The purpose of this study was to evaluate the ability of the TEG, RoTEM and Sonoclot instruments to detect changes in hemostasis in elective cardiac surgery with cardiopulmonary bypass and to investigate possible correlations between variables from these three instruments and routine hematological coagulation tests. Blood samples from thirty-five adult patients were drawn before and after surgery and analyzed in TEG, RoTEM, Sonoclot and routine coagulation tests. Data were compared using repeated measures analysis of variance and Pearson's test for linear correlation. Results We found significant changes for all TEG variables after surgery, for three of the RoTEM variables, and for one variable from the Sonoclot. There were significant correlations postoperatively between plasma fibrinogen levels and variables from the three instruments. Conclusions TEG and RoTEM may be used to detect changes in hemostasis following cardiac surgery with CPB. Sonoclot seems to be less suitable to detect such changes. Variables from the three instruments correlated with plasma fibrinogen and could be used to monitor treatment with fibrinogen concentrate.
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Gonzalez E, Moore EE, Moore HB, Chapman MP, Silliman CC, Banerjee A. Trauma-Induced Coagulopathy: An Institution's 35 Year Perspective on Practice and Research. Scand J Surg 2014; 103:89-103. [PMID: 24786172 DOI: 10.1177/1457496914531927] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Injury is the second leading cause of death worldwide, and as much as 40% of injury-related mortality is attributed to uncontrollable hemorrhage. This persists despite establishment of regionalized trauma systems and advances in the management of severely injured patients. Trauma-induced coagulopathy has been identified as the most common preventable cause of postinjury mortality. METHODS A review of the current literature was performed by collecting PUBMED references related to trauma-induced coagulopathy. Data were then critically analyzed and summarized based on the authors' clinical and research perspective, as well as that reported by other institutions and researchers interested in trauma-induced coagulopathy. A particular focus was placed on those aspects of coagulopathy in which agreement among clinical and basic scientists is currently lacking; these include, pathophysiology, the role of blood components and factor therapy, and goal-directed assessment and management. RESULTS Trauma-induced coagulopathy has been recognized in approximately one-third of trauma patients. There is a vast range of severity, and the emergence of viscoelastic assays, such as thrombelastography and rotational thromboelastogram, has refined its diagnosis and management, particularly through the establishment of goal-directed massive transfusion protocols. Despite advancements in the diagnosis and management of trauma-induced coagulopathy, much remains to be understood regarding its pathophysiology. The cell-based model of hemostasis has allowed for characterization of endothelial dysfunction, impaired thrombin generation, platelet dysfunction, fibrinolysis, endogenous anticoagulants such as protein-C, and antifibrinolytic proteins. These concepts collectively compose the contemporary, but still partial, understanding of trauma-induced coagulopathy. CONCLUSION Trauma-induced coagulopathy is a complex pathophysiological condition, of which some mechanisms have been characterized, but much remains to be understood in order to translate this knowledge into improved outcomes for the injured patient.
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Affiliation(s)
- E Gonzalez
- Trauma Research Center, Department of Surgery, University of Colorado, Denver, CO, USA Department of Surgery, Denver Health Medical Center, Denver, CO, USA
| | - E E Moore
- Trauma Research Center, Department of Surgery, University of Colorado, Denver, CO, USA Department of Surgery, Denver Health Medical Center, Denver, CO, USA
| | - H B Moore
- Trauma Research Center, Department of Surgery, University of Colorado, Denver, CO, USA Department of Surgery, Denver Health Medical Center, Denver, CO, USA
| | - M P Chapman
- Trauma Research Center, Department of Surgery, University of Colorado, Denver, CO, USA
| | - C C Silliman
- Trauma Research Center, Department of Surgery, University of Colorado, Denver, CO, USA Department of Pediatrics, University of Colorado, Denver, CO, USA Department of Research, Bonfils Blood Center, Denver, CO, USA
| | - A Banerjee
- Trauma Research Center, Department of Surgery, University of Colorado, Denver, CO, USA
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