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Nam JS, Oh CS, Kim JY, Choi DK, Oh AR, Park J, Lee JH, Yun SC, Kim KW, Jang MU, Kim TY, Choi IC. A multi-center, double-blind, placebo-controlled, randomized, parallel-group, non-inferiority study to compare the efficacy of goal-directed tranexamic acid administration based on viscoelastic test versus preemptive tranexamic acid administration on postoperative bleeding in cardiovascular surgery (GDT trial). Trials 2024; 25:623. [PMID: 39334224 PMCID: PMC11429631 DOI: 10.1186/s13063-024-08467-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 09/16/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND Tranexamic acid (TXA) effectively attenuates hyperfibrinolysis and preemptive administration has been employed to reduce bleeding and blood transfusions in various surgical settings. However, TXA administration could be associated with adverse effects, such as seizures and thromboembolic risks. While patients with fibrinolysis shutdown showed greater thromboembolic complications and mortality, TXA administration may aggravate the degree of shutdown in these patients. Selective TXA administration based on the results of rotational thromboelastometry (ROTEM) would be non-inferior to preemptive TXA administration in reducing postoperative bleeding and beneficial in reducing its risks in patients undergoing cardiovascular surgery. METHODS This non-inferiority, randomized, double-blind, placebo-controlled, multicenter trial will be performed in 3 tertiary university hospitals from August 2023 to March 2025. Seven hundred sixty-four patients undergoing cardiovascular surgery will be randomly allocated to get TXA as a preemptive (Group-P) or goal-directed strategy (Group-GDT) in each institution (with a 1:1 allocation ratio). After anesthesia induction, TXA (10 mg/kg and 2 mg/kg/h) and a placebo are administered after anesthesia induction in Group-P and Group-GDT, respectively. ROTEM tests are performed immediately before weaning from CPB and at the considerable bleeding post-CPB period. After getting the test results, a placebo is administered in Group-P (regardless of the test results). In Group-GDT, placebo or TXA is administered according to the results: placebo is administered if the amplitude at 10 min (A10-EXTEM) is ≥ 40 mm and lysis within 60 min (LI60-EXTEM) of EXTEM assay is ≥ 85%, or TXA (20 mg/kg) is administered if A10-EXTEM is < 40 mm or LI60-EXTEM is < 85%. The primary outcome is inter-group comparisons of postoperative bleeding (for 24 h). The secondary measures include comparisons of perioperative blood transfusion, coagulation profiles, reoperation, thromboembolic complications, seizures, in-hospital mortality, fibrinolysis phenotypes, and hospital costs. DISCUSSION The absence of inter-group differences in postoperative bleeding would support the selective strategy's non-inferiority in reducing postoperative bleeding in these patients. The possible reduction in thromboembolic risks, seizures, and fibrinolysis shutdown in Group-GDT would support its superiority in reducing TXA-induced adverse events and the cost of their management. TRIAL REGISTRATION This trial was registered at ClinicalTrials.gov with the registration number NCT05806346 on March 28, 2023. TRIAL STATUS recruiting. Issue date: 2023 March 28 (by Tae-Yop Kim, MD, PhD). The trial was registered in the clinical registration on March 28, 2023 (ClinicalTrials.gov, NCT05806346) and revised to the latest version of its protocol (version no. 8, August 26, 2024) approved by the institutional review boards (IRBs) of all 3 university hospitals (Konkuk University Medical Center, 2023-07-005-001, Asan Medical Center, 2023-0248, and Samsung Medical Center, SMC 2023-06-048-002). Its recruitment was started on August 1, 2023, and will be completed on December 31, 2024. Protocol amendment number: 08 (protocol version 08, August 26, 2024). Revision chronology: 2023 March 28:Original. 2023 April 10:Amendment No 01. The primary reason for the amendment is the modification of Arms (adding one arm for sub-group analyses) and Interventions, Outcome Measures, Study Design, Study Description, Study Status, Eligibility, and Study Identification. 2023 May 03:Amendment No 02. The primary reason for the amendment is to modify the Outcome Measures and update the study status. 2023 July 06:Amendment No 03. The primary reason for amendment is to update the chronological study status. 2023 July 07:Amendment No 04. The primary reason for the amendment is the modification of study information (the treatment category was changed to diagnostic, and Phase 4 was changed to not applicable) and a chronological update on the study status. 2023 September 12:Amendment No 06. The primary reason for the amendment is a chronological update in the study status and the inclusion of additional information regarding contacts/locations and oversight. 2023 December 29:Amendment No 07. The primary reason for the amendment is to modify the outcome measures (including detailed information on outcome measures, addition of extra secondary measures, and chronological updates in study status). 2024 August 26:Amendment No 08. The primary reason for the amendment is to add detailed descriptions regarding data handling and the names and roles of the participating institutions and to update the chronological process of the trial.
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Affiliation(s)
- Jae-Sik Nam
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Chung-Sik Oh
- Department of Anesthesiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, and Institution for Patient-Centered Goal-Directed Strategy, Chungju, Republic of Korea
- Institution for Patient-Centered Goal-Directed Strategy, Konkuk University, Chungju, Republic of Korea
| | - Ji-Yoon Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dae-Kee Choi
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ah Ran Oh
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jungchan Park
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jong-Hwan Lee
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung-Cheol Yun
- Department of Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kyeng Whan Kim
- Department of Anesthesiology and Pain Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Min Uk Jang
- Cheorwon Public Health Center, Cheorwon-Gun, Gangwon-Do, Republic of Korea
| | - Tae-Yop Kim
- Department of Anesthesiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, and Institution for Patient-Centered Goal-Directed Strategy, Chungju, Republic of Korea.
- Institution for Patient-Centered Goal-Directed Strategy, Konkuk University, Chungju, Republic of Korea.
| | - In-Cheol Choi
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Scarlatescu E, Kim PY, Marchenko SP, Tomescu DR. Validation of the time to attain maximal clot amplitude after reaching maximal clot formation velocity parameter as a measure of fibrinolysis using rotational thromboelastometry and its application in the assessment of fibrinolytic resistance in septic patients: a prospective observational study: communication from the ISTH SSC Subcommittee on Fibrinolysis. J Thromb Haemost 2024; 22:1223-1235. [PMID: 38104723 DOI: 10.1016/j.jtha.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/12/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND In sepsis, fibrinolysis resistance correlates with worse outcomes. Practically, rotational thromboelastometry (ROTEM) is used to report residual clot amplitude relative to maximum amplitude at specified times after clot formation clot lysis indices (CLIs). However, healthy individuals can exhibit similar CLIs, thus making it challenging to solely diagnose the low fibrinolytic state. Furthermore, CLI does not include the kinetics of clot formation, which can affect overall fibrinolysis. Therefore, a more nuanced analysis, such as time to attain maximal clot amplitude after reaching maximal clot formation velocity (t-AUCi), is needed to better identify fibrinolysis resistance in sepsis. OBJECTIVES To evaluate the correlation between the degree of fibrinolytic activation and t-AUCi in healthy or septic individuals. METHODS Whole blood (n = 60) from septic or healthy donors was analyzed using tissue factor-activated (EXTEM) and nonactivated (NATEM) ROTEM assays. Lysis was initiated with tissue-type plasminogen activator, and CLI and t-AUCi were calculated. Standard coagulation tests and plasma fibrinolysis markers (D-dimer, plasmin-α2-antiplasmin complex, plasminogen activator inhibitor type 1, and plasminogen) were also measured. RESULTS t-AUCi values decreased with increasing fibrinolytic activity and correlated positively with CLI for different degrees of clot lysis both in EXTEM and NATEM. t-AUCi cutoff value of 1962.0 seconds in EXTEM predicted low fibrinolytic activity with 81.8% sensitivity and 83.7% specificity. In addition, t-AUCi is not influenced by clot retraction. CONCLUSION Whole-blood point-of-care ROTEM analyses with t-AUCi offers a more rapid and parametric evaluation of fibrinolytic potential compared with CLI, which can be used for a more rapid and accurate diagnosis of fibrinolysis resistance in sepsis.
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Affiliation(s)
- Ecaterina Scarlatescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Department of Anesthesia and Intensive Care III, Fundeni Clinical Institute, Bucharest, Romania.
| | - Paul Y Kim
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Thrombosis and Atherosclerosis Research Institute, Hamilton, Ontario, Canada
| | - Sergey P Marchenko
- Department of Cardiac Surgery, Pavlov First St. Petersburg Medical University, St. Petersburg, Russian Federation
| | - Dana R Tomescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Department of Anesthesia and Intensive Care III, Fundeni Clinical Institute, Bucharest, Romania
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Buzzard L, Schreiber M. Trauma-induced coagulopathy: What you need to know. J Trauma Acute Care Surg 2024; 96:179-185. [PMID: 37828662 DOI: 10.1097/ta.0000000000004170] [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: 10/14/2023]
Abstract
ABSTRACT Trauma-induced coagulopathy (TIC) is a global inflammatory state accompanied by coagulation derangements, acidemia, and hypothermia, which occurs after traumatic injury. It occurs in approximately 25% of severely injured patients, and its incidence is directly related to injury severity. The mechanism of TIC is multifaceted; proposed contributing factors include dysregulation of activated protein C, increased tPA, systemic endothelial activation, decreased fibrinogen, clotting factor consumption, and platelet dysfunction. Effects of TIC include systemic inflammation, coagulation derangements, acidemia, and hypothermia. Trauma-induced coagulopathy may be diagnosed by conventional coagulation tests including platelet count, Clauss assay, international normalized ratio, thrombin time, prothrombin time, and activated partial thromboplastin time; viscoelastic hemostatic assays such as thrombelastography and rotational thrombelastography; or a clinical scoring system known as the Trauma Induced Coagulopathy Clinical Score. Preventing TIC begins in the prehospital phase with early hemorrhage control, blood product resuscitation, and tranexamic acid therapy. Early administration of prothrombin complex concentrate is also being studied in the prehospital environment. The mainstays of TIC treatment include hemorrhage control, blood and component transfusions, and correction of abnormalities such as hypocalcemia, acidosis, and hypothermia. LEVEL OF EVIDENCE Therapeutic/Care Management; Level III.
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Affiliation(s)
- Lydia Buzzard
- From the University of Wisconsin School of Medicine and Public Health (L.B.), Madison, Wisconsin; and Department of Surgery (L.B., M.S.), Oregon Health and Science University, Portland, Oregon
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Thaler S, Stöhr D, Kammerer T, Nitschke T, Hoechter DJ, Brandes F, Müller M, Groene P, Schäfer ST. Predictive value of coagulation variables and glycocalyx shedding in hospitalized COVID-19 patients - a prospective observational study. Acta Clin Belg 2023; 78:392-400. [PMID: 37092324 DOI: 10.1080/17843286.2023.2204593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/15/2023] [Indexed: 04/25/2023]
Abstract
OBJECTIVES Covid-19 disease causes an immense burden on the healthcare system. It has not yet been finally clarified which patients will suffer from a severe course and which will not. Coagulation disorders can be detected in many of these patients. The aim of the present study was therefore to identify variables of the coagulation system including standard and viscoelastometric tests as well as components of glycocalyx damage that predict admission to the intensive care unit. METHODS Adult patients were included within 24 h of admission. Blood samples were analyzed at hospital admission and at ICU admission if applicable. We analyzed group differences and furthermore performed receiver operator characteristics (ROC). RESULTS This study included 60 adult COVID-19 patients. During their hospital stay, 14 patients required ICU treatment. Comparing ICU and non-ICU patients at time of hospital admission, D-dimer (1450 µg/ml (675/2850) vs. 600 µg/ml (500/900); p = 0.0022; cut-off 1050 µg/ml, sensitivity 71%, specificity 89%) and IL-6 (47.6 pg/ml (24.9/85.4 l) vs. 16.1 pg/ml (5.5/34.4); p = 0.0003; cut-off 21.25 pg/ml, sensitivity 86%, specificity 65%) as well as c-reactive protein (92 mg/dl (66.8/131.5) vs. 43.5 mg/dl (26.8/83.3); p = 0.0029; cutoff 54.5 mg/dl, sensitivity 86%, specificity 65%) were higher in patients who required ICU admission. Thromboelastometric variables and markers of glycocalyx damage (heparan sulfate, hyaluronic acid, syndecan-1) at the time of hospital admission did not differ between groups. CONCLUSION General inflammatory variables continue to be the most robust predictors of a severe course of a COVID-19 infection. Viscoelastometric variables and markers of glycocalyx damage are significantly increased upon admission to the ICU without being predictors of ICU admission.
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Affiliation(s)
- Sarah Thaler
- Department of Anaesthesiology, University Hospital, Munich, Germany
| | - Dana Stöhr
- Department of Anaesthesiology, University Hospital, Munich, Germany
| | - Tobias Kammerer
- Department of Anaesthesiology, University Hospital, Munich, Germany
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Cologne, Germany
| | - Tobias Nitschke
- Department of Anaesthesiology, University Hospital, Munich, Germany
| | | | - Florian Brandes
- Department of Anaesthesiology, University Hospital, Munich, Germany
| | - Martin Müller
- Department of Anaesthesiology, University Hospital, Munich, Germany
| | - Philipp Groene
- Department of Anaesthesiology, University Hospital, Munich, Germany
| | - Simon T Schäfer
- Department of Anaesthesiology, University Hospital, Munich, Germany
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Peng S, Lv K. The role of fibrinogen in traumatic brain injury: from molecular pathological mechanisms to clinical management. Eur J Trauma Emerg Surg 2023; 49:1665-1672. [PMID: 35972516 DOI: 10.1007/s00068-022-02084-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/08/2022] [Indexed: 11/28/2022]
Abstract
Fibrinogen is the substrate of plasma coagulation. It plays an important role in the formation of reticular network, which is crucial to the strength and stability of blood clots. In addition to directly participating in coagulation, fibrinogen also participates in the destruction of blood-brain barrier and neuroinflammation. This article reviews the pathophysiological changes of fibrinogen after traumatic brain injury. Considerable efforts have been made to understand the mechanisms by which fibrinogen damages the central nervous system. Combined with the latest research hotspots, potentially promising treatment strategies at the molecular level were discussed. We believe that understanding the role of fibrinogen-mediated damage in nerve and blood-brain barrier function will enable timely intervention in patients with nerve damage, and guide the development of novel targeted therapeutics.
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Affiliation(s)
- Shixin Peng
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Ke Lv
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Road, Yuzhong District, Chongqing, 400016, China.
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Blasi A, Lisman T. Abnormal fibrinolysis identified by viscoelastic tests in relation to clinical outcomes: Last call to harmonize criteria for future studies on promising associations. Liver Transpl 2023; 29:665-667. [PMID: 36896971 DOI: 10.1097/lvt.0000000000000119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 02/23/2023] [Indexed: 03/11/2023]
Affiliation(s)
- Annabel Blasi
- Department of Anesthesiology, Hospital Clinic of Barcelona, Spain
| | - Ton Lisman
- Department of Surgery, Surgical Research Laboratory, Section of Hepatobiliary Surgery and Liver Transplantation University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Rimaitis M, Cechanovičiūtė V, Bilskienė D, Balčiūnienė N, Vilcinis R, Rimaitis K, Macas A. Dynamic Changes of Hemostasis in Patients with Traumatic Brain Injury Undergoing Craniotomy: Association with in-Hospital Mortality. Neurocrit Care 2023; 38:714-725. [PMID: 36471184 DOI: 10.1007/s12028-022-01639-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/31/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) induces complex systemic hemostatic alterations associated with secondary brain damage and death. We specifically investigated perioperative changes of hemostasis in patients with isolated TBI undergoing major neurosurgery and searched for their influence on outcome. METHODS Serial analysis (four time points, T0-T3) of conventional coagulation assay and rotational thromboelastometry data acquired during 72 h from admission of 68 patients who underwent craniotomy to remove hematoma and/or to decompress the brain was performed. The primary outcome was in-hospital mortality. Secondary outcomes were the prevalence of hypocoagulation and increased clotting activity, coagulation parameters between survivors and nonsurvivors, and cutoff values of coagulation parameters predictive of mortality. RESULTS Overall mortality was 22%. The prevalence of hypocoagulation according to rotational thromboelastometry decreased from 35.8% (T0) to 15.9% (T3). Lower fibrinogen levels, hyperfibrinolysis and fibrinolysis shutdown in the early period (T0-T1) following TBI were associated with higher mortality. Optimal cutoff values were identified: fibrin polymerization thromboelastometry (FIBTEM) clot amplitude at 10 min after clotting time ≤ 13 mm at T0 and FIBTEM clot amplitude at 10 min after clotting time ≤ 16.5 mm at T1 increased the odds of death by 6.0 (95% confidence interval [CI] 1.54-23.13, p = 0.010) and 9.7 (95% CI 2.06-45.36, p = 0.004), respectively. FIBTEM maximum clot firmness ≤ 14.5 mm at T0 and FIBTEM maximum clot firmness ≤ 18.5 mm at T1 increased the odds of death by 6.3 (95% CI 1.56-25.69, p = 0.010) and 9.1 (95% CI 1.88-44.39, p = 0.006). Fibrinogen < 3 g/L on postoperative day 1 (T1) was associated with a 9.5-fold increase of in-hospital mortality (95% CI 1.72-52.98, p = 0.01). Increased clotting activity was not associated with mortality. CONCLUSIONS Rotational thromboelastometry adds important information for identifying patients with TBI at increased risk of death. Early fibrinogen-related coagulation disorders are associated with mortality of patients with TBI undergoing major neurosurgical procedures. Maintenance of higher fibrinogen levels might be necessary for neurosurgical patients with acute TBI.
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Affiliation(s)
- Marius Rimaitis
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania.
- Clinic of Anesthesiology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Vaiva Cechanovičiūtė
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania
| | - Diana Bilskienė
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania
- Clinic of Anesthesiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Neringa Balčiūnienė
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania
- Clinic of Neurosurgery, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rimantas Vilcinis
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania
- Clinic of Neurosurgery, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Kęstutis Rimaitis
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania
- Clinic of Anesthesiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Andrius Macas
- Lithuanian University of Health Sciences, Mickeviciaus Str. 9, 44307, Kaunas, Lithuania
- Clinic of Anesthesiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Wang T, Zhai Y, Xue H, Zhou W, Ding Y, Nie H. Regulation of Epithelial Sodium Transport by SARS-CoV-2 Is Closely Related with Fibrinolytic System-Associated Proteins. Biomolecules 2023; 13:biom13040578. [PMID: 37189326 DOI: 10.3390/biom13040578] [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: 02/14/2023] [Revised: 03/08/2023] [Accepted: 03/21/2023] [Indexed: 05/17/2023] Open
Abstract
Dyspnea and progressive hypoxemia are the main clinical features of patients with coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Pulmonary pathology shows diffuse alveolar damage with edema, hemorrhage, and the deposition of fibrinogens in the alveolar space, which are consistent with the Berlin Acute Respiratory Distress Syndrome Criteria. The epithelial sodium channel (ENaC) is a key channel protein in alveolar ion transport and the rate-limiting step for pulmonary edema fluid clearance, the dysregulation of which is associated with acute lung injury/acute respiratory distress syndrome. The main protein of the fibrinolysis system, plasmin, can bind to the furin site of γ-ENaC and induce it to an activation state, facilitating pulmonary fluid reabsorption. Intriguingly, the unique feature of SARS-CoV-2 from other β-coronaviruses is that the spike protein of the former has the same furin site (RRAR) with ENaC, suggesting that a potential competition exists between SARS-CoV-2 and ENaC for the cleavage by plasmin. Extensive pulmonary microthrombosis caused by disorders of the coagulation and fibrinolysis system has also been seen in COVID-19 patients. To some extent, high plasmin (ogen) is a common risk factor for SARS-CoV-2 infection since an increased cleavage by plasmin accelerates virus invasion. This review elaborates on the closely related relationship between SARS-CoV-2 and ENaC for fibrinolysis system-related proteins, aiming to clarify the regulation of ENaC under SARS-CoV-2 infection and provide a novel reference for the treatment of COVID-19 from the view of sodium transport regulation in the lung epithelium.
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Affiliation(s)
- Tingyu Wang
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Yiman Zhai
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Hao Xue
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Wei Zhou
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Yan Ding
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Hongguang Nie
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
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Liu B, Yang C, Deng Y, Duan Z, Wang K, Li J, Ding W. Persistent fibrinolysis shutdown is associated with increased mortality in traumatic pancreatic injury. Injury 2023; 54:1265-1270. [PMID: 36774266 DOI: 10.1016/j.injury.2023.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 01/16/2023] [Accepted: 02/05/2023] [Indexed: 02/13/2023]
Abstract
PURPOSE The features of fibrinolytic system modifications and their relationship with prognosis are still unknown in traumatic pancreatic injury. The object of this prospective cohort research was to identify fibrinolytic characteristics in patients with pancreatic trauma and to identify the correlation to mortality. METHOD A prospective screening of traumatic pancreatic injury patients was done for five years. The fibrinolytic status of patients was determined by thromboelastography (TEG). The percentage reduction in clot strength 30 min (LY30) after the time of maximal clot strength was utilized to distinguish the fibrinolytic phenotype of individuals, including fibrinolytic shutdown (SD), physiologic fibrinolysis (PHYS) and hyperfibrinolysis (HF). Two cohorts, transient fibrinolytic shutdown (TSD) and persistent fibrinolytic shutdown (PSD), were divided according to whether fibrinolytic shutdown persisted within one week. Demographics, injury severity, characteristics of pancreatic injury, treatment, and outcomes were compared. RESULT A total of 180 cases enrolled, aged 42(interquartile range 32-51) years, 88% males, 97% were blunt trauma. The median ISS was 19(IQR 10-25), and 76% were AAST grade III to V (high-grade). At admission, there were 159 cases of SD (88%), 15 cases of PHYS (8%) while 6 cases of HF (3%). Of these, the TSD cohort included 54 patients (34%), while the PSD cohort included 105 patients (66%). Compared with the TSD cohort, the PSD cohort had more severe injury (ISS 21[IQR 12-27] vs 16[IQR 9-22], p = 0.006) and a higher proportion of AAST high-grade (83% vs 67%, p = 0.035). Persistent fibrinolytic shutdown was associated with operative treatment (odds ratio [OR] 3.111; 95%CI 1.146-8.447; p = 0.026), associated intra-abdominal injury (OR 8.331; 95% CI 1.301-53.336; p = 0.025) and admission LY30 (OR 0.016; 95% CI 0.002 - 0.120; p < 0.001). It was an independent predictor of mortality (adjusted odds ratio [AOR] 4.674; 95% CI 1.03 to 21.14; p = 0.045). CONCLUSION Fibrinolytic shutdown especially persistence of this phenotype is more common in traumatic pancreatic injury than PHYS and HF, which related with mortality. Risk factors including LY30 at admission, intra-abdominal injury and operative treatment were associated with the persistent fibrinolytic shutdown. Sheltered the patients from these risk factors seems to be beneficial, which need to be confirmed by further large-scale studies.
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Affiliation(s)
- Baochen Liu
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chao Yang
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yunxuan Deng
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zehua Duan
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Kai Wang
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jieshou Li
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
| | - Weiwei Ding
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
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Massive Hemorrhage Protocol. Emerg Med Clin North Am 2023; 41:51-69. [DOI: 10.1016/j.emc.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Meizoso JP, Barrett CD, Moore EE, Moore HB. Advances in the Management of Coagulopathy in Trauma: The Role of Viscoelastic Hemostatic Assays across All Phases of Trauma Care. Semin Thromb Hemost 2022; 48:796-807. [DOI: 10.1055/s-0042-1756305] [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
AbstractUncontrolled bleeding is the leading cause of preventable death following injury. Trauma-induced coagulopathy can manifest as diverse phenotypes ranging from hypocoagulability to hypercoagulability, which can change quickly during the acute phase of trauma care. The major advances in understanding coagulation over the past 25 years have resulted from the cell-based concept, emphasizing the key role of platelets and their interaction with the damaged endothelium. Consequently, conventional plasma-based coagulation testing is not accurate in predicting bleeding and does not provide an assessment of which blood products are indicated. Viscoelastic hemostatic assays (VHA), conducted in whole blood, have emerged as a superior method to guide goal-directed transfusion. The major change in resuscitation has been the shift from unbridled crystalloid loading to judicious balanced blood product administration. Furthermore, the recognition of the rapid changes from hypocoagulability to hypercoagulability has underscored the importance of ongoing surveillance beyond emergent surgery. While the benefits of VHA testing are maximized when used as early as possible, current technology limits use in the pre-hospital setting and the time to results compromises its utility in the emergency department. Thus, most of the reported experience with VHA in trauma is in the operating room and intensive care unit, where there is compelling data to support its value. This overview will address the current and potential role of VHA in the seriously injured patient, throughout the continuum of trauma management.
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Affiliation(s)
- Jonathan P. Meizoso
- DeWitt Daughtry Family Department of Surgery, Ryder Trauma Center, University of Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, Florida
| | - Christopher D. Barrett
- Center for Precision Cancer Medicine, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts
- Department of Surgery, Boston University Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | - Ernest E. Moore
- Department of Surgery, University of Colorado Denver, Aurora, Colorado
- Department of Surgery, Ernest E. Moore Shock Trauma Center at Denver Health, Denver, Colorado
| | - Hunter B. Moore
- Department of Surgery, University of Colorado Denver, Aurora, Colorado
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12
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Watson O, Pillai S, Howard M, Cezar-Zaldua J, Whitley J, Burgess B, Lawrence M, Hawkins K, Morris K, Evans PA. Impaired fibrinolysis in severe Covid-19 infection is detectable in early stages of the disease. Clin Hemorheol Microcirc 2022; 82:183-191. [PMID: 35694917 DOI: 10.3233/ch-221491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND A significant degree of mortality and morbidity in Covid-19 is due to thromboembolic disease. Coagulopathy has been well described in critically unwell patients on ICU. There is less clear evidence regarding these changes at the time of presentation to the Emergency Department and the progression of disease over time. OBJECTIVE We sought to investigate whether coagulation markers can predict severity and how they change over the disease course. METHODS Patients presenting to a single University Teaching Hospital were recruited and followed up if PCR was positive. Alongside routine blood testing, Rotational Thromboelastometry (ROTEM) was performed. Outcome data was recorded for all patients, and ROTEM values were compared across outcome groups. RESULTS Extem and Intem Maximum Lysis were significantly reduced in those who died or required an ICU admission, indicating a reduced ability to break down clot mass in the most critically unwell patients. CONCLUSION Comparisons between groups demonstrated that one distinguishing feature between those who require ICU admission or die of Covid-19 compared with those who survive a hospital stay to discharge was the extent to which fibrinolysis could occur. Mortality and morbidity in Covid-19 infection appears in part driven by an inability to break down clot mass.
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Affiliation(s)
- O Watson
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - S Pillai
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - M Howard
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - J Cezar-Zaldua
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - J Whitley
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - B Burgess
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board
| | - M Lawrence
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board
| | | | - K Morris
- Cardiff Metropolitan University, UK
| | - P A Evans
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
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13
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Heubner L, Mirus M, Vicent O, Güldner A, Tiebel O, Beyer-Westendorf J, Fries D, Spieth PM. Point of care coagulation management in anesthesiology and critical care. Minerva Anestesiol 2022; 88:615-628. [PMID: 35416466 DOI: 10.23736/s0375-9393.22.16380-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Point of care (POC) devices are increasingly used in the ICU and in anesthesia. Besides POC-devices for blood gas analysis, several devices are available for coagulation measurements. Although basic principles for thromboelastographic measurements are not novel, some promising developments were made during the last decade improving both user-friendliness and measurement reliability. For instance, POC measurements of activated clotting time (ACT) for heparin monitoring is still regarded as standard-of-care in cardiac interventions and surgery. In the field of anesthesia and intensive care medicine, POC-devices for thromboelastographic and platelet aggregation measurements are widely used. Their impact in case of bleeding and patient blood management for cardiothoracic and trauma surgery is well known. Moreover, there are promising concepts for anticoagulation monitoring including new oral anticoagulant drugs. Coagulation POC-devices may also identify patients at specific risk for thromboembolic events quickly. On the other hand, benefits of POC-devices need to be balanced against limitations, which include technical restrictions and operator related errors, mainly affecting reproducibility and interpretation of results. Therefore, it is recommendable to consider results of POC-coagulation testing in comparison to standard laboratory tests (SLT). Nevertheless, in urgent or emergency situations POC results enable fast decision making to optimize patient care.
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Affiliation(s)
- Lars Heubner
- Department of Anesthesiology and Critical Care Medicine, University Hospital Carl Gustav Carus, Dresden, Germany. -
| | - Martin Mirus
- Department of Anesthesiology and Critical Care Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Oliver Vicent
- Department of Anesthesiology and Critical Care Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Andreas Güldner
- Department of Anesthesiology and Critical Care Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Oliver Tiebel
- Institute of Clinical Chemistry, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jan Beyer-Westendorf
- Thrombosis Research Unit, Division of Hematology and Hemostasis, Department of Medicine I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Dietmar Fries
- Department for General and Surgical Critical Care Medicine, Innsbruck Medical University, Innsbruck, Austria
| | - Peter M Spieth
- Department of Anesthesiology and Critical Care Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
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Fibrinolysis Shutdown in Severe COVID-19: Highly Prevalent but not Independently Predictive of Thrombosis or Poorer Outcomes. J Am Coll Surg 2022; 234:97-98. [PMID: 35213468 DOI: 10.1097/xcs.0000000000000007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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15
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Brill JB, Brenner M, Duchesne J, Roberts D, Ferrada P, Horer T, Kauvar D, Khan M, Kirkpatrick A, Ordonez C, Perreira B, Priouzram A, Cotton BA. The Role of TEG and ROTEM in Damage Control Resuscitation. Shock 2021; 56:52-61. [PMID: 33769424 PMCID: PMC8601668 DOI: 10.1097/shk.0000000000001686] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/05/2019] [Accepted: 10/20/2020] [Indexed: 11/26/2022]
Abstract
ABSTRACT Trauma-induced coagulopathy is associated with very high mortality, and hemorrhage remains the leading preventable cause of death after injury. Directed methods to combat coagulopathy and attain hemostasis are needed. The available literature regarding viscoelastic testing, including thrombelastography (TEG) and rotational thromboelastometry (ROTEM), was reviewed to provide clinically relevant guidance for emergency resuscitation. These tests predict massive transfusion and developing coagulopathy earlier than conventional coagulation testing, within 15 min using rapid testing. They can guide resuscitation after trauma, as well. TEG and ROTEM direct early transfusion of fresh frozen plasma when clinical gestalt has not activated a massive transfusion protocol. Reaction time and clotting time via these tests can also detect clinically significant levels of direct oral anticoagulants. Slowed clot kinetics suggest the need for transfusion of fibrinogen via concentrates or cryoprecipitate. Lowered clot strength can be corrected with platelets and fibrinogen. Finally, viscoelastic tests identify fibrinolysis, a finding associated with significantly increased mortality yet one that no conventional coagulation test can reliably detect. Using these parameters, guided resuscitation begins within minutes of a patient's arrival. A growing body of evidence suggests this approach may improve survival while reducing volumes of blood products transfused.
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Affiliation(s)
- Jason B. Brill
- Department of Surgery, University of Texas Health Science Center, Houston, Texas
| | - Megan Brenner
- Department of Surgery, University of California Riverside, Riverside, California
| | - Juan Duchesne
- Division Chief Acute Care Surgery, Department of Surgery Tulane, New Orleans, Louisiana
| | - Derek Roberts
- Division Chief Acute Care Surgery, Department of Surgery Tulane, New Orleans, Louisiana
| | - Paula Ferrada
- VCU Surgery Trauma, Critical Care and Emergency Surgery, Richmond, Virginia
| | - Tal Horer
- Department of Cardiothoracic and Vascular Surgery, Faculty of Life Science Örebro University Hospital and University, Örebro, Sweden
| | - David Kauvar
- Vascular Surgery Service, San Antonio Military Medical Center, San Antonio, Texas
| | - Mansoor Khan
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, UK
| | - Andrew Kirkpatrick
- Regional Trauma Services Foothills Medical Centre, Calgary, Alberta, Canada
- Departments of Surgery, Critical Care Medicine, University of Calgary, Calgary, Alberta, Canada
- Canadian Forces Health Services, Calgary, Alberta, Canada
| | - Carlos Ordonez
- Fundación Valle del Lili, Division of Trauma and Acute Care Surgery, Department of Surgery. Universidad del Valle, Valle, Colombia
| | - Bruno Perreira
- Department of Surgery and Surgical Critical Care, University of Campinas, Campinas, Brazil
| | - Artai Priouzram
- Department of Cardiothoracic and Vascular Surgery, Linköping University Hospital, Linköping, Sweden
| | - Bryan A. Cotton
- Department of Surgery, University of Texas Health Science Center, Houston, Texas
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16
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Temporal Transitions in Fibrinolysis after Trauma: Adverse Outcome Is Principally Related to Late Hypofibrinolysis. Anesthesiology 2021; 136:148-161. [PMID: 34724559 DOI: 10.1097/aln.0000000000004036] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The relationship between late clinical outcomes after injury and early dynamic changes between fibrinolytic states is not fully understood. The authors hypothesized that temporal transitions in fibrinolysis states using rotational thromboelastometry (ROTEM) would aid stratification of adverse late clinical outcomes and improve understanding of how tranexamic acid modulates the fibrinolytic response and impacts mortality. METHODS The authors conducted a secondary analysis of previously collected data from trauma patients enrolled into an ongoing prospective cohort study (International Standard Randomised Controlled Trial Number [ISRCTN] 12962642) at a major trauma center in the United Kingdom. ROTEM was performed on admission and at 24 h with patients retrospectively grouped into three fibrinolysis categories: tissue factor-activated ROTEM maximum lysis of less than 5% (low); tissue factor-activated ROTEM maximum lysis of 5 to 15% (normal); or tissue factor-activated ROTEM maximum lysis of more than 15% (high). Primary outcomes were multiorgan dysfunction syndrome and 28-day mortality. RESULTS Seven-hundred thirty-one patients were included: 299 (41%) were treated with tranexamic acid and 432 (59%) were untreated. Two different cohorts with low-maximum lysis at 24 h were identified: (1) severe brain injury and (2) admission shock and hemorrhage. Multiple organ dysfunction syndrome was greatest in those with low-maximum lysis on admission and at 24 h, and late mortality was four times higher than in patients who remained normal during the first 24 h (7 of 42 [17%] vs. 9 of 223 [4%]; P = 0.029). Patients that transitioned to or remained in low-maximum lysis had increased odds of organ dysfunction (5.43 [95% CI, 1.43 to 20.61] and 4.85 [95% CI, 1.83 to 12.83], respectively). Tranexamic acid abolished ROTEM hyperfibrinolysis (high) on admission, increased the frequency of persistent low-maximum lysis (67 of 195 [34%]) vs. 8 of 79 [10%]; P = 0.002), and was associated with reduced early mortality (28 of 195 [14%] vs. 23 of 79 [29%]; P = 0.015). No increase in late deaths, regardless of fibrinolysis transition patterns, was observed. CONCLUSIONS Adverse late outcomes are more closely related to 24-h maximum lysis, irrespective of admission levels. Tranexamic acid alters early fibrinolysis transition patterns, but late mortality in patients with low-maximum lysis at 24 h is not increased. EDITOR’S PERSPECTIVE
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17
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Vasovic LV, Littlejohn J, Alqunaibit D, Dillard A, Qiu Y, Rand S, Bronstein M, Gibson CJ, Kelly AG, Lee C, Minneman JA, Narayan M, Shou J, Smith KE, Villegas CV, Winchell RJ, Cushing MM, Barie PS. Rotational thromboelastometry in patients with acute respiratory distress syndrome owing to coronavirus disease 2019: Is there a viscoelastic fingerprint and a role for predicting thrombosis? Surgery 2021; 171:1092-1099. [PMID: 35090739 PMCID: PMC8426191 DOI: 10.1016/j.surg.2021.08.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 08/09/2021] [Accepted: 08/27/2021] [Indexed: 12/29/2022]
Abstract
Objectives We evaluated rotational thromboelastometry tracings in 44 critically ill coronavirus disease 2019 patients, to determine whether there is a viscoelastic fingerprint and to test the hypothesis that the diagnosis and prediction of venous thromboembolism would be enhanced by the addition of rotational thromboelastometry testing. Results Rotational thromboelastometry values reflected an increase in clot strength for the EXTEM, INTEM, and FIBTEM assays beyond the reference range. No hyperfibrinolysis was noted. Fibrinolysis shutdown was present but did not correlate with thrombosis; 32% (14/44) of patients experienced a thrombotic episode. For every 1 mm increase of FIBTEM maximum clot formation, the odds of developing thrombosis increased 20% (95% confidence interval, 0–40%, P = .043), whereas for every 1,000 ng/mL increase in D-dimer, the odds of thrombosis increased by 70% (95% confidence interval, 20%–150%, P = .004), after adjustment for age and sex (AUC 0.96, 95% confidence interval, 0.90–1.00). There was a slight but significant improvement in model performance after adding FIBTEM maximum clot formation and EXTEM clot formation time to D-dimer in a multivariable model (P = .04). Conclusions D-dimer concentrations were more predictive of thrombosis in our patient population than any other parameter. Rotational thromboelastometry confirmed the hypercoagulable state of coronavirus disease 2019 intensive care unit patients. FIBTEM maximum clot formation and EXTEM clot formation time increased the predictability for thrombosis compared with only using D-dimer. Rotational thromboelastometry analysis is most useful in augmenting the information provided by the D-dimer concentration for venous thromboembolism risk assessment when the D-dimer concentration is between 1,625 and 6,900 ng/dL, but the enhancement is modest. Fibrinolysis shutdown did not correlate with thrombosis.
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Affiliation(s)
- Ljiljana V Vasovic
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - James Littlejohn
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY.
| | | | - Alicia Dillard
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Yuqing Qiu
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY
| | - Sophie Rand
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | | | | | - Anton G Kelly
- Department of Surgery, Weill Cornell Medicine New York, NY
| | - Christina Lee
- Department of Surgery, Weill Cornell Medicine New York, NY
| | | | - Mayur Narayan
- Department of Surgery, Weill Cornell Medicine New York, NY
| | - Jian Shou
- Department of Surgery, Weill Cornell Medicine New York, NY
| | - Kira E Smith
- Department of Surgery, Weill Cornell Medicine New York, NY
| | | | | | - Melissa M Cushing
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Philip S Barie
- Department of Surgery, Weill Cornell Medicine New York, NY; Department of Medicine, Weill Cornell Medicine, New York, NY
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18
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Sayce AC, Neal MD, Leeper CM. Viscoelastic monitoring in trauma resuscitation. Transfusion 2021; 60 Suppl 6:S33-S51. [PMID: 33089933 DOI: 10.1111/trf.16074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/13/2020] [Accepted: 06/14/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Traumatic injury results in both physical and physiologic insult. Successful care of the trauma patient depends upon timely correction of both physical and biochemical injury. Trauma-induced coagulopathy is a derangement of hemostasis and thrombosis that develops rapidly and can be fatal if not corrected. Viscoelastic monitoring (VEM) assays have been developed to provide rapid, accurate, and relatively comprehensive depictions of an individual's coagulation profile. VEM are increasingly being integrated into trauma resuscitation guidelines to provide dynamic and individualized guidance to correct coagulopathy. STUDY DESIGN AND METHODS We performed a narrative review of the search terms viscoelastic, thromboelastography, thromboelastometry, TEG, ROTEM, trauma, injury, resuscitation, and coagulopathy using PubMed. Particular focus was directed to articles describing algorithms for management of traumatic coagulopathy based on VEM assay parameters. RESULTS Our search identified 16 papers with VEM-guided resuscitation strategies in adult patients based on TEG, 12 such protocols in adults based on ROTEM, 1 protocol for children based on TEG, and 2 protocols for children based on ROTEM. CONCLUSIONS This review presents evidence to support VEM use to detect traumatic coagulopathy, discusses the role of VEM in trauma resuscitation, provides a summary of proposed treatment algorithms, and discusses pending questions in the field.
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Affiliation(s)
- Andrew C Sayce
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Matthew D Neal
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Christine M Leeper
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Walsh M, Kwaan H, McCauley R, Marsee M, Speybroeck J, Thomas S, Hatch J, Vande Lune S, Grisoli A, Wadsworth S, Shariff F, Aversa JG, Shariff F, Zackariya N, Khan R, Agostini V, Campello E, Simioni P, Scărlătescu E, Hartmann J. Viscoelastic testing in oncology patients (including for the diagnosis of fibrinolysis): Review of existing evidence, technology comparison, and clinical utility. Transfusion 2021; 60 Suppl 6:S86-S100. [PMID: 33089937 DOI: 10.1111/trf.16102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 09/09/2020] [Accepted: 09/09/2020] [Indexed: 12/23/2022]
Abstract
The quantification of the coagulopathic state associated with oncologic and hematologic diseases is imperfectly assessed by common coagulation tests such as prothrombin time, activated partial thromboplastin time, fibrinogen levels, and platelet count. These tests provide a static representation of a component of hemostatic integrity, presenting an incomplete picture of coagulation in these patients. Viscoelastic tests (VETs), such as rotational thromboelastometry (ROTEM) and thromboelastography (TEG), as whole blood analyses, provide data related to the cumulative effects of blood components and all stages of the coagulation and fibrinolytic processes. The utility of VETs has been demonstrated since the late 1960s in guiding blood component therapy for patients undergoing liver transplantation. Since then, the scope of viscoelastic testing has expanded to become routinely used for cardiac surgery, obstetrics, and trauma. In the past decade, VETs' expanded usage has been most significant in trauma resuscitation. However, use of VETs for patients with malignancy-associated coagulopathy (MAC) and hematologic malignancies is increasing. For the purposes of this narrative review, we discuss the similarities between trauma-induced coagulopathy (TIC) and MAC. These similarities center on the thrombomodulin-thrombin complex as it switches between the thrombin-activatable fibrinolysis inhibitor coagulation pathway and activating the protein C anticoagulation pathway. This produces a spectrum of coagulopathy and fibrinolytic alterations ranging from shutdown to hyperfibrinolysis that are common to TIC, MAC, and hematologic malignancies. There is expanding literature regarding the utility of TEG and ROTEM to describe the hemostatic integrity of patients with oncologic and hematologic conditions, which we review here.
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Affiliation(s)
- Mark Walsh
- Departments of Emergency and Internal Medicine, Saint Joseph Regional Medical Center, Mishawaka, Indiana, USA.,Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana, USA.,Indiana University School of Medicine, South Bend, Indiana, USA
| | - Hau Kwaan
- Department of Hematology Oncology, Northwestern University School of Medicine, Chicago, Illinois, USA
| | - Ross McCauley
- Indiana University School of Medicine, South Bend, Indiana, USA
| | - Mathew Marsee
- Indiana University School of Medicine, South Bend, Indiana, USA
| | | | - Scott Thomas
- Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana, USA
| | - Jordan Hatch
- Indiana University School of Medicine, South Bend, Indiana, USA
| | | | - Anne Grisoli
- Indiana University School of Medicine, South Bend, Indiana, USA
| | - Sarah Wadsworth
- Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana, USA
| | - Faisal Shariff
- Indiana University School of Medicine, South Bend, Indiana, USA
| | - John G Aversa
- Department of General Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Faadil Shariff
- Departments of Emergency and Internal Medicine, Saint Joseph Regional Medical Center, Mishawaka, Indiana, USA
| | - Nuha Zackariya
- Departments of Emergency and Internal Medicine, Saint Joseph Regional Medical Center, Mishawaka, Indiana, USA
| | - Rashid Khan
- Michiana Hematology Oncology, Mishawaka, Indiana, USA
| | - Vanessa Agostini
- Department of Transfusion Medicine, IRCC Polyclinic Hospital San Marino, Genoa, Italy
| | - Elena Campello
- Thrombotic and Hemorrhagic Diseases Unit, Department of Medicine, Padua University Hospital, Padua, Italy
| | - Paolo Simioni
- Thrombotic and Hemorrhagic Diseases Unit, Department of Medicine, Padua University Hospital, Padua, Italy
| | - Escaterina Scărlătescu
- Department of Anaesthesia and Intensive Care, Fundeni Clinical Institute, Bucharest, Romania
| | - Jan Hartmann
- Department of Medical Affairs, Haemonetics Corporation, Boston, Massachusetts, USA
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21
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Subramanian V, Mascha EJ, Kattan MW. Developing a Clinical Prediction Score: Comparing Prediction Accuracy of Integer Scores to Statistical Regression Models. Anesth Analg 2021; 132:1603-1613. [PMID: 33464759 DOI: 10.1213/ane.0000000000005362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Researchers often convert prediction tools built on statistical regression models into integer scores and risk classification systems in the name of simplicity. However, this workflow discards useful information and reduces prediction accuracy. We, therefore, investigated the impact on prediction accuracy when researchers simplify a regression model into an integer score using a simulation study and an example clinical data set. Simulated independent training and test sets (n = 1000) were randomly generated such that a logistic regression model would perform at a specified target area under the receiver operating characteristic curve (AUC) of 0.7, 0.8, or 0.9. After fitting a logistic regression with continuous covariates to each data set, continuous variables were dichotomized using data-dependent cut points. A logistic regression was refit, and the coefficients were scaled and rounded to create an integer score. A risk classification system was built by stratifying integer scores into low-, intermediate-, and high-risk tertiles. Discrimination and calibration were assessed by calculating the AUC and index of prediction accuracy (IPA) for each model. The optimism in performance between the training set and test set was calculated for both AUC and IPA. The logistic regression model using the continuous form of covariates outperformed all other models. In the simulation study, converting the logistic regression model to an integer score and subsequent risk classification system incurred an average decrease of 0.057-0.094 in AUC, and an absolute 6.2%-17.5% in IPA. The largest decrease in both AUC and IPA occurred in the dichotomization step. The dichotomization and risk stratification steps also increased the optimism of the resulting models, such that they appeared to be able to predict better than they actually would on new data. In the clinical data set, converting the logistic regression with continuous covariates to an integer score incurred a decrease in externally validated AUC of 0.06 and a decrease in externally validated IPA of 13%. Converting a regression model to an integer score decreases model performance considerably. Therefore, we recommend developing a regression model that incorporates all available information to make the most accurate predictions possible, and using the unaltered regression model when making predictions for individual patients. In all cases, researchers should be mindful that they correctly validate the specific model that is intended for clinical use.
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Affiliation(s)
- Vigneshwar Subramanian
- From the Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, Ohio
| | - Edward J Mascha
- Departments of Quantitative Health Sciences and Outcomes Research and
| | - Michael W Kattan
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
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22
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David JS, Lambert A, Bouzat P, Incagnoli P, Geay-Baillat AM, Taverna XJ, Inaba K, Maegele M. Fibrinolytic shutdown diagnosed with rotational thromboelastometry represents a moderate form of coagulopathy associated with transfusion requirement and mortality: A retrospective analysis. Eur J Anaesthesiol 2021; 37:170-179. [PMID: 31567468 DOI: 10.1097/eja.0000000000001096] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Viscoelastic techniques have made it possible to describe specific fibrinolytic phenotypes (physiological, hyperfibrinolysis and shutdown) and to establish a relationship of these phenotypes with outcome. However, there remains a debate as to whether shutdown is a state of hypercoagulability or rather a coagulopathy with moderate fibrinolysis and fibrinogen consumption. OBJECTIVES Our objectives were to describe the relationship between fibrinolytic phenotypes and outcomes, and to report the effects of tranexamic acid (TXA) administration. DESIGN This was a retrospective analysis of prospectively acquired data from a trauma registry. SETTING An academic level 1 trauma centre in the Lyon Region, from March 2011 to December 2016. PATIENTS We included all injured patients who had a rotational thromboelastometry analysis at admission. Fibrinolytic phenotypes were determined according to the maximum lysis: shutdown less than 3%, physiological 3 to 15%, hyperfibrinolysis more than 15%. MAIN OUTCOME MEASURE Mortality at 24 h and at hospital discharge. RESULTS During the study period, 473 patients were included with the following phenotypes: physiological (344 patients, 73%), shutdown (107 patients, 23%) and hyperfibrinolysis (22 patients, 5%). There was an increase in injury severity, prothrombin time ratio, fibrin degradation products and transfusion requirements from the physiological to the shutdown and hyperfibrinolysis phenotypes. Prehospital TXA administration increased the rate of shutdown and decreased the maximum lysis value at admission. After adjustment, multivariate analysis showed that fibrinolytic phenotypes, but not TXA, were independently associated with an increased risk of early death and death before hospital discharge: shutdown [odds ratio (95% confidence interval)] 2.4 (1.2 to 4.8) and hyperfibrinolysis 67.9 (7.4 to 624.2). CONCLUSION The results of the current study suggest that shutdown, which is associated with injury severity and mortality, probably reflects a moderate form of coagulopathy and fibrinolysis rather than a hypercoagulopathy. Therefore, the observation of shutdown fibrinolysis on thromboelastography/rotational thromboelastometry should not lead to withholding but rather to the administration of TXA.
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Affiliation(s)
- Jean-Stephane David
- From the Department of Anaesthesia and Intensive Care, Lyon-Sud Hospital, Hospices Civils de Lyon (J-SD, AL, PI), University Claude Bernard Lyon 1, Lyon (J-SD, AL), Department of Anaesthesia and Intensive Care, Grenoble University Hospital, Grenoble (PB), Department of Haemostasis, Lyon Sud Hospital (A-MG-B), Department of Anaesthesia and Intensive Care, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France (X-JT), Division of Trauma and Critical Care, Department of Surgery, LAC + USC Medical Center, University of Southern California, Los Angeles, California, USA (KI) and Department of Traumatology and Orthopedic Surgery, Cologne-Merheim Medical Center, University of Witten/Herdecke, Cologne, Germany (MM)
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23
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Pusateri AE, Le TD, Keyloun JW, Moffatt LT, Orfeo T, Brummel-Ziedins KE, McLawhorn MM, Callcut RA, Shupp JW. Early abnormal fibrinolysis and mortality in patients with thermal injury: a prospective cohort study. BJS Open 2021; 5:6248890. [PMID: 33893737 DOI: 10.1093/bjsopen/zrab017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/03/2021] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Abnormal fibrinolysis early after injury has been associated with increased mortality in trauma patients, but no studies have addressed patients with burn injury. This prospective cohort study aimed to characterize fibrinolytic phenotypes in burn patients and to see if they were associated with mortality. METHODS Patients presenting to a regional burn centre within 4 h of thermal injury were included. Blood was collected for sequential viscoelastic measurements using thromboelastography (RapidTEG™) over 12 h. The percentage decrease in clot strength 30 min after the time of maximal clot strength (LY30) was used to categorize patients into hypofibrinolytic/fibrinolytic shutdown (SD), physiological (PHYS) and hyperfibrinolytic (HF) phenotypes. Injury characteristics, demographics and outcomes were compared. RESULTS Of 115 included patients, just over two thirds were male. Overall median age was 40 (i.q.r. 28-57) years and median total body surface area (TBSA) burn was 13 (i.q.r. 6-30) per cent. Some 42 (36.5 per cent) patients had severe burns affecting over 20 per cent TBSA. Overall mortality was 18.3 per cent. At admission 60.0 per cent were PHYS, 30.4 per cent were SD and 9.6 per cent HF. HF was associated with increased risk of mortality on admission (odds ratio 12.61 (95 per cent c.i. 1.12 to 142.57); P = 0.041) but not later during the admission when its incidence also decreased. Admission SD was not associated with mortality, but incidence increased and by 4 h and beyond, SD was associated with increased mortality, compared with PHYS (odds ratio 8.27 (95 per cent c.i. 1.16 to 58.95); P = 0.034). DISCUSSION Early abnormal fibrinolytic function is associated with mortality in burn patients.
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Affiliation(s)
- A E Pusateri
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas, USA
| | - T D Le
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas, USA.,Department of Epidemiology and Biostatistics, University of Texas Health Science Center, Tyler, Texas, USA
| | - J W Keyloun
- The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC, USA.,Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA
| | - L T Moffatt
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA.,Department of Biochemistry, Georgetown University, Washington, DC, USA
| | - T Orfeo
- Department of Biochemistry, College of Medicine, University of Vermont, Colchester, Vermont, USA
| | - K E Brummel-Ziedins
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA
| | - M M McLawhorn
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA
| | - R A Callcut
- Department of Surgery, University of California Davis School of Medicine, Sacramento, California, USA
| | - J W Shupp
- The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC, USA.,Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA.,Department of Surgery, Georgetown University, Washington, DC, USA
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24
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Vulliamy P, Kornblith LZ, Kutcher ME, Cohen MJ, Brohi K, Neal MD. Alterations in platelet behavior after major trauma: adaptive or maladaptive? Platelets 2021; 32:295-304. [PMID: 31986948 PMCID: PMC7382983 DOI: 10.1080/09537104.2020.1718633] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/01/2020] [Accepted: 01/14/2020] [Indexed: 12/14/2022]
Abstract
Platelets are damage sentinels of the intravascular compartment, initiating and coordinating the primary response to tissue injury. Severe trauma and hemorrhage induce profound alterations in platelet behavior. During the acute post-injury phase, platelets develop a state of impaired ex vivo agonist responsiveness independent of platelet count, associated with systemic coagulopathy and mortality risk. In patients surviving the initial insult, platelets become hyper-responsive, associated with increased risk of thrombotic events. Beyond coagulation, platelets constitute part of a sterile inflammatory response to injury: both directly through release of immunomodulatory molecules, and indirectly through modifying behavior of innate leukocytes. Both procoagulant and proinflammatory aspects have implications for secondary organ injury and multiple-organ dysfunction syndromes. This review details our current understanding of adaptive and maladaptive alterations in platelet biology induced by severe trauma, mechanisms underlying these alterations, potential platelet-focused therapies, and existing knowledge gaps and their research implications.
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Affiliation(s)
- Paul Vulliamy
- Centre for Trauma Sciences, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, E1 2AT, United Kingdom
| | - Lucy Z. Kornblith
- Department of Surgery, Zuckerberg San Francisco General Hospital and the University of California, San Francisco, San Francisco, California
| | - Matthew E. Kutcher
- Division of Trauma, Critical Care, and Acute Care Surgery, University of Mississippi Medical Center, Jackson, Mississippi
| | - Mitchell J. Cohen
- Department of Surgery, University of Colorado, Aurora, Colorado
- Ernest E Moore Shock Trauma Center at Denver Health, Denver, Colorado
| | - Karim Brohi
- Centre for Trauma Sciences, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, E1 2AT, United Kingdom
| | - Matthew D. Neal
- Division of Trauma and Acute Care Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, PA
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25
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Görlinger K, Almutawah H, Almutawaa F, Alwabari M, Alsultan Z, Almajed J, Alwabari M, Alsultan M, Shahwar D, Yassen KA. The role of rotational thromboelastometry during the COVID-19 pandemic: a narrative review. Korean J Anesthesiol 2021; 74:91-102. [PMID: 33440114 PMCID: PMC8024216 DOI: 10.4097/kja.21006] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 02/08/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic is currently recognized as a global health crisis. This viral infection is frequently associated with hypercoagulability, with a high incidence of thromboembolic complications that can be fatal. In many situations, the standard coagulation tests (SCT) fail to detect this state of hypercoagulability in patients with COVID-19 since clotting times are either not or only mildly affected. The role of viscoelastic tests such as rotational thromboelastometry (ROTEM®) during this pandemic is explored in this review. COVID-19-associated coagulopathy, as measured using the rotational thromboelastometry parameters, can vary from hypercoagulability due to increased fibrin polymerization and decreased fibrinolysis to bleeding from hypocoagulability. The use of a multimodal diagnostic and monitoring approach, including both rotational thromboelastometry and SCT, such as plasma fibrinogen and D-dimer concentrations, is recommended. Rotational thromboelastometry provides comprehensive information about the full coagulation status of each patient and detects individual variations. Since COVID-19-associated coagulopathy is a very dynamic process, the phenotype can change during the course of infection and in response to anticoagulation therapy. Data from published literature provide evidence that the combination of rotational thromboelastometry and SCT analysis is helpful in detecting hemostasis issues, guiding anticoagulant therapy, and improving outcomes in COVID-19 patients. However, more research is needed to develop evidence-based guidelines and protocols.
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Affiliation(s)
- Klaus Görlinger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- Tem Innovations, Munich, Germany
| | - Hawra Almutawah
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Fatimah Almutawaa
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Maryam Alwabari
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Zahra Alsultan
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Jumanah Almajed
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Mahmoud Alwabari
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Maryam Alsultan
- College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Duri Shahwar
- Division of Anesthesia, Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
| | - Khaled Ahmed Yassen
- Division of Anesthesia, Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Hofuf, Saudi Arabia
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26
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Wang IJ, Bae BK, Cho YM, Cho SJ, Yeom SR, Lee SB, Chun M, Kim H, Kim HH, Lee SM, Huh U, Moon SY. Effect of acute alcohol intoxication on mortality, coagulation, and fibrinolysis in trauma patients. PLoS One 2021; 16:e0248810. [PMID: 33755680 PMCID: PMC7987171 DOI: 10.1371/journal.pone.0248810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/07/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The effect of alcohol on the outcome and fibrinolysis phenotype in trauma patients remains unclear. Hence, we performed this study to determine whether alcohol is a risk factor for mortality and fibrinolysis shutdown in trauma patients. MATERIALS AND METHODS A total of 686 patients who presented to our trauma center and underwent rotational thromboelastometry were included in the study. The primary outcome was in-hospital mortality. Logistic regression analysis was performed to determine whether alcohol was an independent risk factor for in-hospital mortality and fibrinolysis shutdown. RESULTS The rate of in-hospital mortality was 13.8% and blood alcohol was detected in 27.7% of the patients among our study population. The patients in the alcohol-positive group had higher mortality rate, higher clotting time, and lower maximum lysis, more fibrinolysis shutdown, and hyperfibrinolysis than those in the alcohol-negative group. In logistic regression analysis, blood alcohol was independently associated with in-hospital mortality (odds ratio [OR] 2.578; 95% confidence interval [CI], 1.550-4.288) and fibrinolysis shutdown (OR 1.883 [95% CI, 1.286-2.758]). Within the fibrinolysis shutdown group, blood alcohol was an independent predictor of mortality (OR 2.168 [95% CI, 1.030-4.562]). CONCLUSIONS Alcohol is an independent risk factor for mortality and fibrinolysis shutdown in trauma patients. Further, alcohol is an independent risk factor for mortality among patients who experienced fibrinolysis shutdown.
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Affiliation(s)
- Il-Jae Wang
- Department of Emergency Medicine, Pusan National University Hospital, Busan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Byung-Kwan Bae
- Department of Emergency Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Young Mo Cho
- Department of Emergency Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Suck Ju Cho
- Department of Emergency Medicine, Pusan National University Hospital, Busan, Republic of Korea
- Department of Emergency Medicine, Pusan National University School of Medicine, Gyeongsangnam-do, Yangsan, Republic of Korea
| | - Seok-Ran Yeom
- Department of Emergency Medicine, Pusan National University Hospital, Busan, Republic of Korea
- Department of Emergency Medicine, Pusan National University School of Medicine, Gyeongsangnam-do, Yangsan, Republic of Korea
| | - Sang-Bong Lee
- Department of Trauma Surgery, Pusan National University Hospital, Busan, Republic of Korea
| | - Mose Chun
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Gyeongsangnam-do, Yangsan, Republic of Korea
| | - Hyerim Kim
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
- Department of Laboratory Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Hyung-Hoi Kim
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
- Department of Laboratory Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Sun Min Lee
- Department of Laboratory Medicine, Pusan National University Yangsan Hospital, Gyeongsangnam-do, Yangsan, Republic of Korea
| | - Up Huh
- Department of Thoracic and Cardiovascular Surgery, Pusan National University Hospital, Busan, Republic of Korea
| | - Soo Young Moon
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
- Department of Laboratory Medicine, Pusan National University Hospital, Busan, Republic of Korea
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27
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Meizoso JP, Moore HB, Moore EE. Fibrinolysis Shutdown in COVID-19: Clinical Manifestations, Molecular Mechanisms, and Therapeutic Implications. J Am Coll Surg 2021; 232:995-1003. [PMID: 33766727 PMCID: PMC7982779 DOI: 10.1016/j.jamcollsurg.2021.02.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 02/06/2023]
Abstract
The COVID-19 pandemic has introduced a global public health threat unparalleled in our history. The most severe cases are marked by ARDS attributed to microvascular thrombosis. Hypercoagulability, resulting in a profoundly prothrombotic state, is a distinct feature of COVID-19 and is accentuated by a high incidence of fibrinolysis shutdown. The aims of this review were to describe the manifestations of fibrinolysis shutdown in COVID-19 and its associated outcomes, review the molecular mechanisms of dysregulated fibrinolysis associated with COVID-19, and discuss potential implications and therapeutic targets for patients with severe COVID-19.
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Affiliation(s)
- Jonathan P Meizoso
- Ernest E Moore Shock Trauma Center, Denver Health Medical Center, University of Colorado, Denver, CO.
| | - Hunter B Moore
- Division of Transplant Surgery, University of Colorado, Denver, CO
| | - Ernest E Moore
- Ernest E Moore Shock Trauma Center, Denver Health Medical Center, University of Colorado, Denver, CO
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28
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Pavoni V, Gianesello L, Pazzi M, Horton A, Suardi LR. Derangement of the coagulation process using subclinical markers and viscoelastic measurements in critically ill patients with coronavirus disease 2019 pneumonia and non-coronavirus disease 2019 pneumonia. Blood Coagul Fibrinolysis 2021; 32:80-86. [PMID: 33196505 DOI: 10.1097/mbc.0000000000000971] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Systemic coagulation abnormalities including clotting activation and inhibition of anticoagulant factors have been observed in patients with pneumonia. In severe coronavirus disease 2019 (COVID-19) the alteration of coagulation parameters was associated with poor prognosis. We evaluated the difference in coagulopathy between critically ill patients with COVID-19 pneumonia (COVID group) and non-COVID-19 pneumonia (non-COVID group), using traditional coagulation markers and rotational thromboelastometry (ROTEM). Standard laboratory and ROTEM parameters were evaluated in 45 patients (20 COVID group patients and 25 non-COVID group patients) at time of admission to the Intensive Care Unit (ICU) (T0) and at 5 (T5) and 10 days (T10) later. In all evaluations times, platelet count was found higher in COVID group rather than in non-COVID group. At T0, COVID group revealed a fibrinogen value greater than non-COVID group. d-Dimer values were high in both groups and they were not statistically different. At T0 COVID group showed a significant reduction of clot formation time in INTEM and in EXTEM and a significant increase of maximum clot firmness in INTEM, EXTEM and FIBTEM respect to non-COVID group. Moreover, COVID group demonstrated a coagulability state with ROTEM profiles higher than non-COVID group at T5 and T10. Coagulation profiles showed that critically ill patients with COVID-19 pneumonia are characterized by a higher coagulable state than others; this greater procoagulative state persists over time.
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Affiliation(s)
- Vittorio Pavoni
- Anesthesia and Intensive Care Unit, Emergency Department and Critical Care, Santa Maria Annunziata Hospital
| | - Lara Gianesello
- Department of Anesthesia and Intensive Care, University-Hospital Careggi, Florence, Italy
| | - Maddalena Pazzi
- Anesthesia and Intensive Care Unit, Emergency Department and Critical Care, Santa Maria Annunziata Hospital
| | - Andrew Horton
- School of Dentistry, University of Utah Health, Salt Lake City, Utah, USA
| | - Lorenzo R Suardi
- Infectious Diseases Department, Santa Maria Annunziata Hospital, Florence, Italy
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29
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Creel-Bulos C, Auld SC, Caridi-Scheible M, Barker NA, Friend S, Gaddh M, Kempton CL, Maier CL, Nahab F, Sniecinski R. Fibrinolysis Shutdown and Thrombosis in a COVID-19 ICU. Shock 2021; 55:316-320. [PMID: 32769822 PMCID: PMC8858425 DOI: 10.1097/shk.0000000000001635] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
ABSTRACT The coronavirus disease (COVID-19) pandemic has threatened millions of lives worldwide with severe systemic inflammation, organ dysfunction, and thromboembolic disease. Within our institution, many critically ill COVID-19-positive patients suffered major thrombotic events, prompting our clinicians to evaluate hypercoagulability outside of traditional coagulation testing.We determined the prevalence of fibrinolysis shutdown via rotational thromboelastometry (ROTEM, Instrumentation Laboratories, Bedford, Mass) in patients admitted to the intensive care unit over a period of 3 weeks. In 25 patients who had a ROTEM test, we found that 11 (44%) met criteria for fibrinolysis shutdown. Eight of 9 (73%) of the VTE patients met criteria for fibrinolysis shutdown.Given the high rate of fibrinolysis shutdown in these patients, our data support using viscoelastic testing to evaluate for the presence of impaired fibrinolysis. This may help identify patient subsets who might benefit from the administration of fibrinolytics.
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Affiliation(s)
- Christina Creel-Bulos
- Emory Critical Care Center, Division of Critical Care Medicine, Department of Anesthesiology, Emory University School of Medicine, Atlanta, Georgia
| | - Sara C. Auld
- Emory Critical Care Center, Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, Georgia
| | - Mark Caridi-Scheible
- Emory Critical Care Center, Division of Critical Care Medicine, Department of Anesthesiology, Emory University School of Medicine, Atlanta, Georgia
| | | | - Sarah Friend
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, Georgia
| | - Manila Gaddh
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, Georgia
| | - Christine L. Kempton
- Hemophilia of Georgia Center for Bleeding and Clotting Disorders of Emory and Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, Georgia
| | - Cheryl L. Maier
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Fadi Nahab
- Division of Vascular Neurology, Department of Neurology and Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Roman Sniecinski
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, Georgia
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30
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Sussman MS, Urrechaga EM, Cioci AC, Iyengar RS, Herrington TJ, Ryon EL, Namias N, Galbut DL, Salerno TA, Proctor KG. Do all cardiac surgery patients benefit from antifibrinolytic therapy? J Card Surg 2021; 36:1450-1457. [PMID: 33586229 DOI: 10.1111/jocs.15406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/03/2020] [Accepted: 12/22/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND In trauma patients, the recognition of fibrinolysis phenotypes has led to a re-evaluation of the risks and benefits of antifibrinolytic therapy (AF). Many cardiac patients also receive AF, but the distribution of fibrinolytic phenotypes in that population is unknown. The purpose of this hypothesis-generating study was to fill that gap. METHODS Seventy-eight cardiac surgery patients were retrospectively reviewed. Phenotypes were defined as hypofibrinolytic (LY30 <0.8%), physiologic (0.8%-3.0%), and hyperfibrinolytic (>3%) based on thromboelastogram. RESULTS The population was 65 ± 10-years old, 74% male, average body mass index of 29 ± 5 kg/m2 . Fibrinolytic phenotypes were distributed as physiologic = 45% (35 of 78), hypo = 32% (25 of 78), and hyper = 23% (18 of 78). There was no obvious effect of age, gender, race, or ethnicity on this distribution; 47% received AF. For AF versus no AF, the time with chest tube was longer (4 [1] vs. 3 [1] days, p = .037), and all-cause morbidity was more prevalent (51% vs. 25%, p = .017). However, when these two groups were further stratified by phenotypes, there were within-group differences in the percentage of patients with congestive heart failure (p = .022), valve disease (p = .024), on-pump surgery (p < .0001), estimated blood loss during surgery (p = .015), transfusion requirement (p = .015), and chest tube output (p = .008), which highlight other factors along with AF that might have affected all-cause morbidity. CONCLUSION This is the first description of the prevalence of three different fibrinolytic phenotypes and their potential influence on cardiac surgery patients. The use of AF was associated with increased morbidity, but because of the small sample size and treatment allocation bias, additional confirmatory studies are necessary. We hope these present findings open the dialog on whether it is safe to administer AFs to cardiac surgery patients who are normo- or hypofibrinolytic.
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Affiliation(s)
- Matthew S Sussman
- Divisions of Trauma, Surgical Critical Care, and Burns, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Eva M Urrechaga
- Divisions of Trauma, Surgical Critical Care, and Burns, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Alessia C Cioci
- Divisions of Trauma, Surgical Critical Care, and Burns, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Rahul S Iyengar
- University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Tyler J Herrington
- University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Emily L Ryon
- Divisions of Trauma, Surgical Critical Care, and Burns, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Nicholas Namias
- Divisions of Trauma, Surgical Critical Care, and Burns, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - David L Galbut
- Division of Cardiothoracic Surgery, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Tomas A Salerno
- University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,Division of Cardiothoracic Surgery, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
| | - Kenneth G Proctor
- Divisions of Trauma, Surgical Critical Care, and Burns, Daughtry Family Department of Surgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA.,University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, Florida, USA
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31
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Pluta J, Trzebicki ACJ. COVID-19: coagulation disorders and anticoagulant treatment in patients hospitalised in ICU. Anaesthesiol Intensive Ther 2021; 53:153-161. [PMID: 34006056 PMCID: PMC10158437 DOI: 10.5114/ait.2021.105783] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 04/07/2021] [Indexed: 11/17/2022] Open
Abstract
Patients hospitalized in the intensive care unit (ICU) due to the COVID-19 experience a high incidence (up to 43%) of venous thromboembolic events. While laboratory findings in COVID-19-associated coagulopathy (CAC) show increased D-dimer and fibrinogen levels, the abnormalities in standard coagulation tests and platelet count are minimal. Recent studies suggest contribution of fibrinolysis shutdown to this phenomenon. Endothelial injury and alteration of its antithrombotic activity can lead to micro- and macrovascular thrombosis in the lungs, occurrence of which is associated with poor clinical outcome in critically ill patients with COVID-19. Additionally, the hypercoagulability induced by activation of coagulation pathways during the immune response to SARS-CoV-2 infection contributes to impaired organ perfusion. This, alongside with hypoxemia, leads to multiorgan failure. Various diagnostic regimens, some of which include global assays of haemostasis, are currently being published and discussed. Numerous guidelines and recommendations of scientific societies and groups of specialists have been published. However, there is no single optimal algorithm for anticoagulation treatment and monitoring specific to the ICU patients with COVID-19. The authors have attempted to summarize the data related to CAC and thrombotic disease and develop an algorithm consistent with the latest clinical practice guideline recommendations.
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Affiliation(s)
- Jan Pluta
- Department of Anaesthesiology and Intensive Care, Medical University of Warsaw, Poland
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32
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Miszta A, Ahmadzia HK, Luban NLC, Li S, Guo D, Holle LA, Berger JS, James AH, Gobburu JVS, van den Anker J, de Laat B, Wolberg AS. Application of a plasmin generation assay to define pharmacodynamic effects of tranexamic acid in women undergoing cesarean delivery. J Thromb Haemost 2021; 19:221-232. [PMID: 33001565 PMCID: PMC7875467 DOI: 10.1111/jth.15114] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 12/27/2022]
Abstract
Essentials Tranexamic acid (TXA) is an antifibrinolytic drug used to reduce bleeding. Assaying plasmin generation (PG) in plasma detects clinically relevant TXA levels in vitro and ex vivo. 3.1-16.2 µg/mL TXA half-maximally inhibits PG in plasma from women undergoing cesarean delivery. PG velocity shows the strongest dose-relationship at low TXA concentrations (≤10 µg/mL). ABSTRACT: Background Tranexamic acid (TXA) is used to reduce bleeding. TXA inhibits plasmin(ogen) binding to fibrin and reduces fibrinolysis. TXA antifibrinolytic activity is typically measured by clot lysis assays; however, effects on plasmin generation (PG) are unclear due to a lack of tools to measure PG in plasma. Aims Develop an assay to measure PG kinetics in human plasma. Determine effects of TXA on PG and compare with fibrinolysis measured by rotational thromboelastometry (ROTEM). Methods We characterized effects of plasminogen, tissue plasminogen activator, fibrinogen, and α2 -antiplasmin on PG in vitro. We also studied effects of TXA on PG in plasma from 30 pregnant women administered intravenous TXA (5, 10, or 15 mg/kg) during cesarean delivery. PG was measured by calibrated fluorescence. PG parameters were compared with TXA measured by mass spectrometry and ROTEM of whole blood. Results The PG assay is specific for plasmin and sensitive to tissue plasminogen activator, fibrin(ogen), and α2 -antiplasmin. Addition of TXA to plasma in vitro dose dependently prolonged the clot lysis time and delayed and reduced PG. For all doses of TXA administered intravenously, the PG assay detected delayed time-to-peak (≤3 hours) and reduced the velocity, peak, and endogenous plasmin potential (≤24 hours) in plasma samples obtained after infusion. The PG time-to-peak, velocity, and peak correlated significantly with TXA concentration and showed less variability than the ROTEM lysis index at 30 minutes or maximum lysis. Conclusions The PG assay detects pharmacologically relevant concentrations of TXA administered in vitro and in vivo, and demonstrates TXA-mediated inhibition of PG in women undergoing cesarean delivery.
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Affiliation(s)
- Adam Miszta
- Department of Pathology and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC, USA
- Synapse Research Institute, Maastricht, The Netherlands
| | - Homa K. Ahmadzia
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, The George Washington University, Washington, DC, USA
| | - Naomi L. C. Luban
- Division of Hematology/Oncology, Department of Pediatrics and Pathology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Shuhui Li
- Center for Translational Medicine, School of Pharmacy, University of Maryland, Baltimore, MD, USA
| | - Dong Guo
- Center for Translational Medicine, School of Pharmacy, University of Maryland, Baltimore, MD, USA
| | - Lori A. Holle
- Department of Pathology and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC, USA
| | - Jeffrey S. Berger
- Department of Anesthesiology, The George Washington University, Washington, DC, USA
| | - Andra H. James
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Duke University, Durham, NC, USA
| | - Jogarao V. S. Gobburu
- Center for Translational Medicine, School of Pharmacy, University of Maryland, Baltimore, MD, USA
| | - John van den Anker
- Division of Clinical Pharmacology, Department of Pediatrics, Children’s National Hospital, George Washington University of School of Medicine and Health Sciences, Washington, DC, USA
| | - Bas de Laat
- Synapse Research Institute, Maastricht, The Netherlands
| | - Alisa S. Wolberg
- Department of Pathology and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC, USA
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Kammerer T, Groene P, Sappel SR, Peterss S, Sa PA, Saller T, Giebl A, Scheiermann P, Hagl C, Schäfer ST. Functional Testing for Tranexamic Acid Duration of Action Using Modified Viscoelastometry. Transfus Med Hemother 2020; 48:109-117. [PMID: 33976611 DOI: 10.1159/000511230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/21/2020] [Indexed: 01/11/2023] Open
Abstract
Introduction Tranexamic acid (TXA) is the standard medication to prevent or treat hyperfibrinolysis. However, prolonged inhibition of lysis (so-called "fibrinolytic shutdown") correlates with increased mortality. A new viscoelastometric test enables bedside quantification of the antifibrinolytic activity of TXA using tissue plasminogen activator (TPA). Materials and Methods Twenty-five cardiac surgery patients were included in this prospective observational study. In vivo, the viscoelastometric TPA test was used to determine lysis time (LT) and maximum lysis (ML) over 96 h after TXA bolus. Additionally, plasma concentrations of TXA and plasminogen activator inhibitor 1 (PAI-1) were measured. Moreover, dose effect curves from the blood of healthy volunteers were performed in vitro. Data are presented as median (25-75th percentile). Results In vivo TXA plasma concentration correlated with LT (r = 0.55; p < 0.0001) and ML (r = 0.62; p < 0.0001) at all time points. Lysis was inhibited up to 96 h (LTTPA-test: baseline: 398 s [229-421 s] vs. at 96 h: 886 s [626-2,175 s]; p = 0.0013). After 24 h, some patients (n = 8) had normalized lysis, but others (n = 17) had strong lysis inhibition (ML <30%; p < 0.001). The high- and low-lysis groups differed regarding kidney function (cystatin C: 1.64 [1.42-2.02] vs. 1.28 [1.01-1.52] mg/L; p = 0.002) in a post hoc analysis. Of note, TXA plasma concentration after 24 h was significantly higher in patients with impaired renal function (9.70 [2.89-13.45] vs.1.41 [1.30-2.34] µg/mL; p < 0.0001). In vitro, TXA concentrations of 10 µg/mL effectively inhibited fibrinolysis in all blood samples. Conclusions Determination of antifibrinolytic activity using the TPA test is feasible, and individual fibrinolytic capacity, e.g., in critically ill patients, can potentially be measured. This is of interest since TXA-induced lysis inhibition varies depending on kidney function.
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Affiliation(s)
- Tobias Kammerer
- Department of Anaesthesiology, University Hospital, LMU Munich, Munich, Germany.,Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Cologne, Germany
| | - Philipp Groene
- Department of Anaesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Sophia R Sappel
- Department of Anaesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Sven Peterss
- Department of Cardiac Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Paula A Sa
- Department of Anesthesiology, Intensive Care and Emergency, Centro Hospitalar Universitario de Porto, Porto, Portugal
| | - Thomas Saller
- Department of Anaesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Andreas Giebl
- Department of Transfusion Medicine and Hemostaseology, University Hospital Augsburg, Augsburg, Germany
| | - Patrick Scheiermann
- Department of Anaesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Christian Hagl
- Department of Cardiac Surgery, University Hospital, LMU Munich, Munich, Germany
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Fibrinolysis Index as a new predictor of deep vein thrombosis after traumatic lower extremity fractures. Clin Chim Acta 2020; 511:227-234. [PMID: 33080260 DOI: 10.1016/j.cca.2020.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND Deep vein thrombosis (DVT) is a common complication in patients with traumatic injury. The purpose of this study was to develop a potential predictor of DVT. METHODS This case-control study enrolled adult trauma patients and healthy volunteers. Patients underwent angiography before surgery to diagnose DVT. Patients with or without DVT were matched by gender, age and fracture sites. Laboratory parameters included lysis potential (LP), lysis time (LT), blood cell counts, conventional coagulation tests, tissue plasminogen activator inhibitor complex (tPAIC) and others. RESULTS 41 of 319 patients with DVT were matched with 41 patients without DVT and 80 healthy volunteers were controls. LP and LT were significantly decreased in patients with DVT than without (P = 0.043 and P = 0.014, respectively). The level of tPAIC in the DVT group was significantly higher than in patients without DVT (P = 0.042). We defined the Fibrinolysis Index as (-10.707) × LP + (-0.607) × LT (min) + 0.012 × fibrinogen (mg/dl) + 0.299 × tPAIC (ng/ml) + 9.917, and found that the area under the receiver operating characteristic curve for the Fibrinolysis Index was 0.802, making it a novel indicator. CONCLUSION The Fibrinolysis Index represents a new discriminator for predicting DVT after traumatic lower extremity fractures.
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Lampridou M, Sokou R, Tsantes AG, Theodoraki M, Konstantinidi A, Ioakeimidis G, Bonovas S, Politou M, Valsami S, Iliodromiti Z, Boutsikou T, Iacovidou N, Nikolopoulos G, Tsantes AE. ROTEM diagnostic capacity for measuring fibrinolysis in neonatal sepsis. Thromb Res 2020; 192:103-108. [DOI: 10.1016/j.thromres.2020.05.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 04/23/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
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Rotational thromboelastometry predicts transfusion and disability in pediatric trauma. J Trauma Acute Care Surg 2020; 88:134-140. [PMID: 31688790 DOI: 10.1097/ta.0000000000002533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Trauma-induced coagulopathy seen on rotational thromboelastometry (ROTEM) is associated with poor outcomes in adults; however, this relationship is poorly understood in the pediatric population. We sought to define thresholds for product-specific transfusion and evaluate the prognostic efficacy of ROTEM in injured children. METHODS Demographics, ROTEM, and clinical outcomes from severely injured children (age, < 18 years) admitted to a Level I trauma center between 2014 and 2018 were retrospectively analyzed. Receiver operating characteristic curves were plotted and Youden indexes were calculated against the endpoint of packed red blood cell transfusion to identify thresholds for intervention. The ROTEM parameters were compared against the clinical outcomes of mortality or disability at discharge. RESULTS Ninety subjects were reviewed. Increased tissue factor-triggered extrinsic pathway (EXTEM) clotting time (CT) >84.5 sec (p = 0.049), decreased EXTEM amplitude at 10 minutes (A10) <43.5 mm (p = 0.025), and decreased EXTEM maximal clot firmness (MCF) <64.5 mm (p = 0.026) were associated with need for blood product transfusion. Additionally, EXTEM CT longer than 68.5 seconds was associated with mortality or disability at discharge. CONCLUSION Coagulation dysregulation on thromboelastometry is associated with disability and mortality in children. Based on our findings, we propose ROTEM thresholds: plasma transfusion for EXTEM CT longer than 84.5 seconds, fibrinogen replacement for EXTEM A10 less than 43.5 mm, and platelet transfusion for EXTEM MCF less than 64.5 mm. LEVEL OF EVIDENCE Prognostic, Level III; Therapeutic, Level IV.
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Response to the Comment on “The S100A10 Pathway Mediates an Occult Hyperfibrinolytic Subtype in Trauma Patients”. Ann Surg 2020; 271:e111-e112. [DOI: 10.1097/sla.0000000000003691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Comment on "The S100A10 Pathway Mediates an Occult Hyperfibrinolytic Subtype in Trauma Patients". Ann Surg 2019; 271:e110-e111. [PMID: 31800497 DOI: 10.1097/sla.0000000000003690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cardenas JC. Mechanisms of Traumatic Hyperfibrinolysis and Implications for Antifibrinolytic Therapy. CURRENT TRAUMA REPORTS 2019. [DOI: 10.1007/s40719-019-00175-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Fenger-Eriksen C, Haas T, Fries D. Coagulation disturbances during major perioperative or traumatic bleeding. TRENDS IN ANAESTHESIA AND CRITICAL CARE 2019. [DOI: 10.1016/j.tacc.2019.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Grissom TE. Walking the Tightrope of Bleeding Control. Anesth Analg 2019; 129:644-646. [DOI: 10.1213/ane.0000000000004320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Moore HB, Moore EE, Neal MD, Sheppard FR, Kornblith LZ, Draxler DF, Walsh M, Medcalf RL, Cohen MJ, Cotton BA, Thomas SG, Leeper CM, Gaines BA, Sauaia A. Fibrinolysis Shutdown in Trauma: Historical Review and Clinical Implications. Anesth Analg 2019; 129:762-773. [PMID: 31425218 PMCID: PMC7340109 DOI: 10.1213/ane.0000000000004234] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite over a half-century of recognizing fibrinolytic abnormalities after trauma, we remain in our infancy in understanding the underlying mechanisms causing these changes, resulting in ineffective treatment strategies. With the increased utilization of viscoelastic hemostatic assays (VHAs) to measure fibrinolysis in trauma, more questions than answers are emerging. Although it seems certain that low fibrinolytic activity measured by VHA is common after injury and associated with increased mortality, we now recognize subphenotypes within this population and that specific cohorts arise depending on the specific time from injury when samples are collected. Future studies should focus on these subtleties and distinctions, as hypofibrinolysis, acute shutdown, and persistent shutdown appear to represent distinct, unique clinical phenotypes, with different pathophysiology, and warranting different treatment strategies.
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Affiliation(s)
- Hunter B. Moore
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Ernest E. Moore
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
- Department of Surgery, Denver Health Medical Center, Denver, Colorado
| | - Matthew D. Neal
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | | | - Lucy Z. Kornblith
- Department of Surgery, San Francisco General Hospital, University of California San Francisco, San Francisco, California
| | - Dominik F. Draxler
- Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
| | - Mark Walsh
- Department of Surgery, Memorial Hospital Trauma Center, Springfield, Illinois
- Department of Emergency Medicine, Memorial Hospital Trauma Center, Springfield, Illinois
| | - Robert L. Medcalf
- Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
| | - Mitch J. Cohen
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
- Department of Surgery, Denver Health Medical Center, Denver, Colorado
| | - Bryan A. Cotton
- Department of Surgery, Center for Translational Injury Research, The McGovern Medical School at the University of Texas Health Science Center at Houston, Houston, Texas
| | - Scott G. Thomas
- Department of Surgery, Memorial Hospital Trauma Center, Springfield, Illinois
- Department of Emergency Medicine, Memorial Hospital Trauma Center, Springfield, Illinois
| | - Christine M. Leeper
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Barbara A. Gaines
- Department of Surgery, Children’s Hospital of Pittsburgh of the University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Angela Sauaia
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
- Division of Health Systems, Management, and Policy, University of Colorado School of Public Health, Aurora, Colorado
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Draxler DF, Awad MM, Hanafi G, Daglas M, Ho H, Keragala C, Galle A, Roquilly A, Lyras D, Sashindranath M, Medcalf RL. Tranexamic Acid Influences the Immune Response, but not Bacterial Clearance in a Model of Post-Traumatic Brain Injury Pneumonia. J Neurotrauma 2019; 36:3297-3308. [PMID: 31140372 DOI: 10.1089/neu.2018.6030] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The antifibrinolytic agent, tranexamic acid (TXA), an inhibitor of plasmin formation, currently is evaluated to reduce bleeding in various conditions, including traumatic brain injury (TBI). Because plasmin is implicated in inflammation and immunity, we investigated the effects of plasmin inhibition on the immune response after TBI in the presence or absence of induced pneumonia. Wild-type mice treated with vehicle or TXA or mice deficient in plasminogen (plg-/-) underwent TBI using the controlled cortical impact model. Mice were then subjected to Staphylococcus aureus induced pneumonia and the degree of immune competence determined. Significant baseline changes in the innate immune cell profile were seen in plg-/- mice with increases in spleen weight and white blood cell counts, and elevation in plasma interleukin-6 levels. The plg-/- mice subjected to TBI displayed no additional changes in these parameters at the 72 h or one week time point post-TBI. The plg-/- mice subjected to TBI did not exhibit any further increase in susceptibility to endogenous infection. Pneumonia was induced by intratracheal instillation of S. aureus. The TBI did not worsen pneumonia symptoms or delay recovery in plg-/- mice. Similarly, in wild type mice, treatment with TXA did not impact on the ability of mice to counteract pneumonia after TBI. Administration of TXA after TBI and subsequent pneumonia, however, altered the number and surface marker expression of several myeloid and lymphoid cell populations, consistent with enhanced immune activation at the 72 h time point. This investigation confirms the immune-modulatory properties of TXA, thereby highlighting its effects unrelated to inhibition of fibrinolysis.
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Affiliation(s)
- Dominik F Draxler
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Milena M Awad
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Victoria, Australia
| | - Gryselda Hanafi
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Maria Daglas
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Heidi Ho
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Charithani Keragala
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Adam Galle
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Antoine Roquilly
- Anaesthesia Intensive Care Unit, Centre Hospitalier Universitaire, Nantes, France
| | - Dena Lyras
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Victoria, Australia
| | - Maithili Sashindranath
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Robert L Medcalf
- Molecular Neurotrauma and Haemostasis, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
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The progression from coagulopathy to disseminated intravascular coagulation in representative underlying diseases. Thromb Res 2019; 179:11-14. [DOI: 10.1016/j.thromres.2019.04.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/10/2019] [Accepted: 04/26/2019] [Indexed: 12/13/2022]
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Moore HB, Moore EE, Chapman MP, Hansen KC, Cohen MJ, Pieracci FM, Chandler J, Sauaia A. Does Tranexamic Acid Improve Clot Strength in Severely Injured Patients Who Have Elevated Fibrin Degradation Products and Low Fibrinolytic Activity, Measured by Thrombelastography? J Am Coll Surg 2019; 229:92-101. [PMID: 30936005 PMCID: PMC6874093 DOI: 10.1016/j.jamcollsurg.2019.03.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND Elevated d-dimers in injured patients with paradoxically low fibrinolysis activity measured by viscoelastic assays have been speculated to be "occult" fibrinolysis. However, an alternative explanation is that these patients have previously activated their fibrinolytic system and have shut it down by the time of blood draw, and would gain no benefit in clot strength with tranexamic acid (TXA). We hypothesize that TXA will not increase clot strength in injured patients with low fibrinolytic activity measured by thrombelastography (TEG), despite biomarkers of fibrinolysis activation. STUDY DESIGN Three TEG assays (rapid, tissue plasminogen activator, and functional fibrinogen) were run on trauma patients. The tissue plasminogen activator TEG served as a functional assay to quantify depletion of fibrinolysis inhibitors (DFI). Patients were stratified by DFI vs non-DFI and then by rapid TEG lysis at 30 minutes phenotype cutoffs. Response to TXA was evaluated with functional fibrinogen TEG by calculating percent change in clot strength with the addition of exogenous TXA in the TEG cup. RESULTS Six hundred and thirty patients with a median new injury severity score of 20 were analyzed. Depletion of fibrinolysis inhibitors was present in 116 (18%). The DFI patients had significantly increased d-dimer (p < 0.001) and lower fibrinogen (p < 0.001). The DFI patients had increased rates of massive transfusion (33% vs 3.3%; p < 0.001) and mortality (40% vs 6.2%; p < 0.001). Among DFI patients, TXA significantly improved fibrin clot strength with hyperfibrinolysis (+19% clot strength; p < 0.001) but not with shutdown (+1.2%) or physiologic (-2.5%). CONCLUSIONS Patients with DFI have multiple abnormalities of their coagulation system, but only DFI patients with hyperfibrinolysis have improved fibrin clot strength with TXA.
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Affiliation(s)
- Hunter B Moore
- Department of Surgery, School of Medicine, University of Colorado, Denver, CO.
| | - Ernest E Moore
- Department of Surgery, School of Medicine, University of Colorado, Denver, CO; Department of Surgery, Ernest E Moore Shock and Trauma Center at Denver Health, Denver, CO
| | - Michael P Chapman
- Department of Surgery, School of Medicine, University of Colorado, Denver, CO
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado, Denver, CO
| | - Mitchell J Cohen
- Department of Surgery, Ernest E Moore Shock and Trauma Center at Denver Health, Denver, CO
| | - Frederic M Pieracci
- Department of Surgery, Ernest E Moore Shock and Trauma Center at Denver Health, Denver, CO
| | - James Chandler
- Department of Surgery, Ernest E Moore Shock and Trauma Center at Denver Health, Denver, CO
| | - Angela Sauaia
- School of Public Health, University of Colorado, Denver, CO; Department of Surgery, Ernest E Moore Shock and Trauma Center at Denver Health, Denver, CO
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Walsh M, Moore EE, Moore H, Thomas S, Lune SV, Zimmer D, Dynako J, Hake D, Crowell Z, McCauley R, Larson EE, Miller M, Pohlman T, Achneck HE, Martin P, Nielsen N, Shariff F, Ploplis VA, Castellino FJ. Use of Viscoelastography in Malignancy-Associated Coagulopathy and Thrombosis: A Review. Semin Thromb Hemost 2019; 45:354-372. [PMID: 31108555 PMCID: PMC7707018 DOI: 10.1055/s-0039-1688497] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The relationship between malignancy and coagulopathy is one that is well documented yet incompletely understood. Clinicians have attempted to quantify the hypercoagulable state produced in various malignancies using common coagulation tests such as prothrombin time, activated partial thromboplastin time, and platelet count; however, due to these tests' focus on individual aspects of coagulation during one specific time point, they have failed to provide clinicians the complete picture of malignancy-associated coagulopathy (MAC). Viscoelastic tests (VETs), such as thromboelastography (TEG) and rotational thromboelastometry (ROTEM), are whole blood analyses that have the advantage of providing information related to the cumulative effects of plasma clotting factors, platelets, leukocytes, and red cells during all stages of the coagulation and fibrinolytic processes. VETs have gained popularity in the care of trauma patients to objectively measure trauma-induced coagulopathy (TIC), but the utility of VETs remains yet unrealized in many other medical specialties. The authors discuss the similarities and differences between TIC and MAC, and propose a mechanism for the hypercoagulable state of MAC that revolves around the thrombomodulin-thrombin complex as it switches between activating the protein C anticoagulation pathway or the thrombin activatable fibrinolysis inhibitor coagulation pathway. Additionally, they review the current literature on the use of TEG and ROTEM in patients with various malignancies. Although limited research is currently available, early results demonstrate the utility of both TEG and ROTEM in the prediction of hypercoagulable states and thromboembolic complications in oncologic patients.
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Affiliation(s)
- Mark Walsh
- Saint Joseph Regional Medical Center, Mishawaka, Indiana
- Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - Ernest E. Moore
- Ernest E. Moore Trauma Center Denver General Hospital, University of Colorado School of Medicine, Denver, Colorado
| | - Hunter Moore
- Ernest E. Moore Trauma Center Denver General Hospital, University of Colorado School of Medicine, Denver, Colorado
| | - Scott Thomas
- Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana
| | - Stefani Vande Lune
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - David Zimmer
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - Joseph Dynako
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - Daniel Hake
- Chicago College of Osteopathic Medicine at Midwestern University, Downers Grove, Illinois
| | - Zachary Crowell
- Chicago College of Osteopathic Medicine at Midwestern University, Downers Grove, Illinois
| | - Ross McCauley
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - Emilee E. Larson
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - Michael Miller
- Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana
| | - Tim Pohlman
- Beacon Medical Group Trauma & Surgical Research Services, South Bend, Indiana
| | | | - Peter Martin
- Department of Emergency Medicine, Tulane School of Medicine, New Orleans, Louisiana
| | - Nathan Nielsen
- Division of Pulmonary Diseases, Critical Care and Environmental Medicine, Tulane School of Medicine, New Orleans, Louisiana
| | - Faisal Shariff
- Indiana University School of Medicine, South Bend Campus, South Bend, Indiana
| | - Victoria A. Ploplis
- W.M. Keck Center for Transgene Research, The University of Notre Dame, Notre Dame, Indiana
- Department of Chemistry and Biochemistry, The University of Notre Dame, Notre Dame, Indiana
| | - Francis J. Castellino
- W.M. Keck Center for Transgene Research, The University of Notre Dame, Notre Dame, Indiana
- Department of Chemistry and Biochemistry, The University of Notre Dame, Notre Dame, Indiana
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Kornblith LZ, Moore HB, Cohen MJ. Trauma-induced coagulopathy: The past, present, and future. J Thromb Haemost 2019; 17:852-862. [PMID: 30985957 PMCID: PMC6545123 DOI: 10.1111/jth.14450] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 12/12/2022]
Abstract
Trauma remains a leading cause of death worldwide, and most early preventable deaths in both the civilian and military settings are due to uncontrolled hemorrhage, despite paradigm advances in modern trauma care. Combined tissue injury and shock result in hemostatic failure, which has been identified as a multidimensional molecular, physiologic and clinical disorder termed trauma-induced coagulopathy (TIC). Understanding the biology of TIC is of utmost importance, as it is often responsible for uncontrolled bleeding, organ failure, thromboembolic complications, and death. Investigations have shown that TIC is characterized by multiple phenotypes of impaired hemostasis due to altered biology in clot formation and breakdown. These coagulopathies are attributable to tissue injury and shock, and encompass underlying endothelial, immune and inflammatory perturbations. Despite the recognition and identification of multiple mechanisms and mediators of TIC, and the development of targeted treatments, the mortality rates and associated morbidities due to hemorrhage after injury remain high. The purpose of this review is to examine the past and present understanding of the multiple distinct but highly integrated pathways implicated in TIC, in order to highlight the current knowledge gaps and future needs in this evolving field, with the aim of reducing morbidity and mortality after injury.
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Affiliation(s)
- Lucy Z. Kornblith
- Department of Surgery, Zuckerberg San Francisco General Hospital and the University of California, San Francisco, San Francisco, California, 1001 Potrero Avenue, Building 1, Suite 210, San Francisco, CA 94110
| | - Hunter B. Moore
- Department of Surgery, Denver Health Medical Center and the University of Colorado, Denver, Colorado, 777 Bannock Street. Mail Code 0206, Denver, CO 80203
| | - Mitchell J. Cohen
- Department of Surgery, Denver Health Medical Center and the University of Colorado, Denver, Colorado, 777 Bannock Street. Mail Code 0206, Denver, CO 80203
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Stettler GR, Moore EE, Moore HB, Nunns GR, Silliman CC, Banerjee A, Sauaia A. Redefining postinjury fibrinolysis phenotypes using two viscoelastic assays. J Trauma Acute Care Surg 2019; 86:679-685. [PMID: 30562328 PMCID: PMC6870942 DOI: 10.1097/ta.0000000000002165] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Fibrinolysis was initially defined using rapid thrombelastography (rTEG). The cutoffs for the pathologic extremes of the fibrinolytic system, hyperfibrinolysis and shutdown, were both defined based on association with mortality. We propose to redefine these phenotypes for both TEG and for rotational thrombelastometry, the other commonly used viscoelastic assay. METHODS Rotational thrombelastometry, rTEG, and clinical data were prospectively collected on trauma patients admitted to an urban Level I trauma center from 2010 to 2016. Hyperfibrinolysis was defined as the Youden index from EXTEM-clot lysis index 60 minutes after clotting time (CLI60) and rTEG-fibrinolysis 30 minutes after achieving MA (LY30) for predicting massive transfusion (>10 red blood cell units, or death per 6 hours after injury) as a surrogate for severe bleeding. Patients identified as having hyperfibrinolysis were then removed from the data set, and the cutoff for fibrinolysis shutdown was derived as the optimal cutoff for predicting mortality in the remaining patients. RESULTS Overall, 216 patients (median age, 36 years (interquartile range, 27-49 years), 82% men, 58% blunt injury) were included. Of these, 16% required massive transfusion, and 12.5% died. Rapid thrombelastography phenotypes were redefined as hyperfibrinolysis: rTEG-LY30 greater than7.7%, physiologic rTEG-LY30 0.6% to7.6%, and shutdown rTEG-LY30 less than 0.6%. EXTEM-CLI60 fibrinolysis phenotypes were hyperfibrinolysis CLI60 less than 82%, physiologic (CLI60, 82-97.9%), and shutdown (CLI60 > 98%). Weighted kappa statistics revealed moderate agreement between rotational thrombelastometry- and rTEG-defined fibrinolysis (k = 0.51; 95% confidence interval, 0.39-0.63), with disagreement mostly in the shutdown and physiologic categories. CONCLUSION We confirmed the U-shaped distribution of death related to fibrinolysis system abnormalities. Both rTEG LY30 and EXTEM CLI60 can identify the spectrum of fibrinolytic phenotypes, have moderate agreement, and can be used to guide hemostatic resuscitation. LEVEL OF EVIDENCE Diagnostic study, level III.
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Affiliation(s)
- Gregory R Stettler
- From the Department of Surgery (G.R.S., E.E.M., H.B.M., G.R.N., C.C.S., A.B., A.S.), University of Colorado School of Medicine, Aurora, Colorado; Denver Health Medical Center (E.E.M.), Denver, Colorado; Department of Pediatrics (C.C.S.), University of Colorado School of Medicine; Bonfils Blood Center (C.C.S.), Denver, Colorado; and University of Colorado School of Public Health (A.S.), Aurora, Colorado
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