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Price AD, Chae RC, Wallen TE, Becker ER, Baucom MR, Schuster RM, England L, Pritts TA, Goodman MD. Direct red blood cell effect on thrombosis is dependent on the interaction of tissue factor and calcium with membrane phosphatidylserine. J Trauma Acute Care Surg 2024; 97:57-64. [PMID: 38605437 PMCID: PMC11199102 DOI: 10.1097/ta.0000000000004340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
BACKGROUND Prior literature has implicated red blood cells (RBCs) in the initiation of thrombosis and suggests that posttransfusion hypercoagulability may occur secondary to the effects of RBCs. Elevated serum tissue factor is a known sequelae of acute trauma. Phosphatidylserine (PS) is a prothrombotic phospholipid present within the RBC cell membrane. We hypothesized that RBC aggregation is dependent on the interaction between RBC membrane bound (exposed) PS, extracellular calcium, and tissue factor. METHODS Human whole blood (WB) was separated into components, including RBCs and platelet-rich plasma (PRP). Whole blood, PRP, and RBCs underwent impedance aggregometry utilizing arachidonic acid (AA), ADP, collagen, calcium, and tissue factor (TF)-based agonists. Red blood cells then underwent impedance aggregometry utilizing combined calcium and TF agonists. Red blood cells were pretreated with Annexin V, a known PS blocking agent, and underwent impedance aggregometry with combined calcium and TF agonists to determine if the mechanism of calcium/TF-induced RBC aggregability is dependent on PS. Red blood cells treated with calcium, TF, calcium+TF, and pre-treated with Annexin V followed by calcium+TF were perfused through an in vitro model of pulmonary microcirculatory flow. RESULTS Red blood cell aggregation was significantly higher than that of WB and PRP when utilizing a TF agonist, an effect unique to TF. The combination of calcium and TF demonstrated significantly higher RBC aggregation than either agonist alone. Pretreatment with Annexin V resulted in a significantly reduced aggregability of RBC following treatment with TF + calcium. Red blood cells aged to 42 days did not exhibit significant change in aggregation. Exposure to calcium and TF significantly reduced time to thrombosis of RBCs perfused through a pulmonary microcirculatory model. CONCLUSION Treatment with both TF and calcium synergistically induces RBC aggregation. Phosphatidylserine appears to play an integral role in the TF/calcium-based, age-independent RBC aggregation response. Red blood cells treated with TF + calcium exhibit more rapid thrombus formation in an in vitro model of pulmonary microcirculatory perfusion.
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Affiliation(s)
- Adam D Price
- From the Department of Surgery, University of Cincinnati, Cincinnati, Ohio
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Schellenberg M, Owattanapanich N, Emigh B, Van Gent JM, Egodage T, Murphy PB, Ball CG, Spencer AL, Vogt KN, Keeley JA, Doris S, Beiling M, Donnelly M, Ghneim M, Schroeppel T, Bradford J, Breinholt CS, Coimbra R, Berndtson AE, Anding C, Charles MS, Rieger W, Inaba K. When is it safe to start venous thromboembolism prophylaxis after blunt solid organ injury? A prospective American Association for the Surgery of Trauma multi-institutional trial. J Trauma Acute Care Surg 2024; 96:209-215. [PMID: 37872669 DOI: 10.1097/ta.0000000000004163] [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: 10/25/2023]
Abstract
BACKGROUND The optimal time to initiate venous thromboembolism (VTE) chemoprophylaxis (VTEp) after blunt solid organ injury remains controversial, as VTE mitigation must be balanced against bleeding promulgation. Evidence from primarily small, retrospective, single-center work suggests that VTEp ≤48 hours is safe and effective. This study was undertaken to validate this clinical practice. METHODS Blunt trauma patients presenting to 19 participating trauma centers in North America were screened over a 1-year study period beginning between August 1 and October 1, 2021. Inclusions were age older than 15 years; ≥1 liver, spleen, or kidney injury; and initial nonoperative management. Exclusions were transfers, emergency department death, pregnancy, and concomitant bleeding disorder/anticoagulation/antiplatelet medication. A priori power calculation stipulated the need for 1,158 patients. Time of VTEp initiation defined study groups: Early (≤48 hours of admission) versus Late (>48 hours). Bivariate and multivariable analyses compared outcomes. RESULTS In total, 1,173 patients satisfied the study criteria with 571 liver (49%), 557 spleen (47%), and 277 kidney injuries (24%). The median patient age was 34 years (interquartile range, 25-49 years), and 67% (n = 780) were male. The median Injury Severity Score was 22 (interquartile range, 14-29) with Abbreviated Injury Scale Abdomen score of 3 (interquartile range, 2-3), and the median American Association for the Surgery of Trauma grade of solid organ injury was 2 (interquartile range, 2-3). Early VTEp patients (n = 838 [74%]) had significantly lower rates of VTE (n = 28 [3%] vs. n = 21 [7%], p = 0.008), comparable rates of nonoperative management failure (n = 21 [3%] vs. n = 12 [4%], p = 0.228), and lower rates of post-VTEp blood transfusion (n = 145 [17%] vs. n = 71 [23%], p = 0.024) when compared with Late VTEp patients (n = 301 [26%]). Late VTEp was independently associated with VTE (odd ratio, 2.251; p = 0.046). CONCLUSION Early initiation of VTEp was associated with significantly reduced rates of VTE with no increase in bleeding complications. Venous thromboembolism chemoprophylaxis initiation ≤48 hours is therefore safe and effective and should be the standard of care for patients with blunt solid organ injury. LEVEL OF EVIDENCE Therapeutic and Care Management; Level III.
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Affiliation(s)
- Morgan Schellenberg
- From the Division of Acute Care Surgery (M.S., N.O., B.E., K.I.), LAC+USC Medical Center, University of Southern California, Los Angeles, California; Division of Acute Care Surgery (J.-M.V.G., W.R.), University of Texas Health Sciences Center at Houston, Houston, Texas; Division of Trauma (T.E.), Cooper University Hospital, Camden, New Jersey; Division of Acute Care Surgery (P.B.M.), Froedtert Hospital, Medical College of Wisconsin, Milwaukee, Wisconsin; Division of Acute Care Surgery (C.G.B.), Foothills Medical Center, University of Calgary, Calgary, Alberta; Division of Acute Care Surgery (A.L.S.), Atrium Health Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, North Carolina; Division of Acute Care Surgery (K.N.V.), London Health Sciences Center, University of Western Ontario, London, Ontario, Canada; Division of Trauma/Acute Care Surgery/Surgical Critical Care (J.A.K.), Harbor UCLA Medical Center, University of California Los Angeles, Los Angeles, California; Division of Acute Care Surgery (S.D.), Grant Medical Center, Columbus, Ohio; Division of Acute Care Surgery (M.B.), Oregon Health and Science University, Portland, Oregon; Division of Acute Care Surgery (M.D.), University of California Irvine, Irvine, California; Program in Trauma (M.G.), R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, Maryland; Division of Acute Care Surgery, UC Health Memorial Hospital (T.S.), University of Colorado Springs, Colorado Springs, Colorado; Division of Acute Care Surgery (J.B.), Dell Medical School, The University of Texas Austin, Austin, Texas; Division of Trauma, Acute Care Surgery, and Surgical Critical Care (C.S.B.), West Virginia University, Morgantown, West Virginia; Division of Acute Care Surgery (R.C.), Riverside University Health System Medical Center, University of California Riverside, Riverside; Division of Trauma, Surgical Critical Care, Burns, and Acute Care Surgery, Department of Surgery (A.E.B.), University of California-San Diego, San Diego, California; Division of Acute Care Surgery (C.A.), Texas Tech University Health Sciences Center, Texas Tech University, Lubbock, Texas; and Division of Acute Care Surgery (M.S.C.), Ascension Medical Group St. John, Tulsa, Oklahoma
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Fuentes E, Arauna D, Araya-Maturana R. Regulation of mitochondrial function by hydroquinone derivatives as prevention of platelet activation. Thromb Res 2023; 230:55-63. [PMID: 37639783 DOI: 10.1016/j.thromres.2023.08.013] [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: 06/07/2023] [Revised: 08/07/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
Platelet activation plays an essential role in the pathogenesis of thrombotic events in different diseases (e.g., cancer, type 2 diabetes, Alzheimer's, and cardiovascular diseases, and even in patients diagnosed with coronavirus disease 2019). Therefore, antiplatelet therapy is essential to reduce thrombus formation. However, the utility of current antiplatelet drugs is limited. Therefore, identifying novel antiplatelet compounds is very important in developing new drugs. In this context, the involvement of mitochondrial function as an efficient energy source required for platelet activation is currently accepted; however, its contribution as an antiplatelet target still has little been exploited. Regarding this, the intramolecular hydrogen bonding of hydroquinone derivatives has been described as a structural motif that allows the reach of small molecules at mitochondria, which can exert antiplatelet activity, among others. In this review, we describe the role of mitochondrial function in platelet activation and how hydroquinone derivatives exert antiplatelet activity through mitochondrial regulation.
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Affiliation(s)
- Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca 3480094, Chile.
| | - Diego Arauna
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca 3480094, Chile
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca 3460000, Chile
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Buriko Y, Chalifoux NV, Clarkin-Breslin R, Silverstein DC. Comparison of a viscoelastic point-of-care coagulation monitor with thromboelastography in sick dogs with hemostatic abnormalities. Vet Clin Pathol 2023. [PMID: 36798021 DOI: 10.1111/vcp.13198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 08/30/2022] [Accepted: 09/18/2022] [Indexed: 02/18/2023]
Abstract
BACKGROUND Viscoelastic coagulation monitor (VCM-Vet) is a point-of-care device that has been used to characterize hemostatic abnormalities in sick pets but has not been validated in veterinary patients. OBJECTIVES We aimed to compare VCM-Vet and thromboelastography (TEG) in sick dogs with suspected disorders of hemostasis. METHODS Duplicate VCM-Vet tests using untreated native blood performed concurrently on two VCM-Vet machines, and simultaneous TEG tests were performed (one citrated native (CN), and one activated with tissue factor (TF) at a 1:3600 dilution). Each VCM-Vet result was compared with both TF-activated and CN TEG. RESULTS Fifty-three dogs were enrolled. Eleven cases displayed apparent hyperfibrinolysis. Spearman correlation coefficients for individual VCM-Vet devices and CN and TF TEG were obtained between R and CT values and ranged from 0.21 to 0.27, CFT and K (r = 0.60-0.67), angles (r = 0.51-0.62), and MCF and MA (r = 0.85-0.87). Comparison of the two VCM-Vet devices displayed positive correlations for all clot formation parameters with Lin's concordance correlation coefficients of 0.75-0.95. Variable lysis parameter agreement existed between the VCM-Vet devices and VCM-Vet and TEG. When samples were classified as hypercoagulable or coagulopathic, VCM-Vet had a low positive predictive value (17-33%) for the detection of hypercoagulable states and a moderate negative predictive value (64-74%) for the detection of coagulopathy as defined by TEG. CONCLUSIONS VCM-Vet and TEG had variable correlations in clot formation values and a strong correlation for final clot strength. More information is needed to make conclusions about the lysis parameters. Artifact in the fibrinolysis portion of the test can confound the interpretation of VCM-Vet results.
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Affiliation(s)
- Yekaterina Buriko
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Nolan V Chalifoux
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rachel Clarkin-Breslin
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Deborah C Silverstein
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Age-dependent thrombin generation predicts 30-day mortality and symptomatic thromboembolism after multiple trauma. Sci Rep 2023; 13:1681. [PMID: 36717730 PMCID: PMC9886925 DOI: 10.1038/s41598-023-28474-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 01/19/2023] [Indexed: 01/31/2023] Open
Abstract
Trauma-induced coagulopathy (TIC) is a risk factor for death and is associated with deviations in thrombin generation. TIC prevalence and thrombin levels increase with age. We assayed in vivo and ex vivo thrombin generation in injured patients (n = 418) to specifically investigate how age impacts thrombin generation in trauma and to address the prognostic ability of thrombin generation. Biomarkers of thrombin generation were elevated in young (< 40 years) and older (≥ 40 years) trauma patients. In vivo thrombin generation was associated with Injury Severity Score (ISS) and this association was stronger in young than older patients. In vivo thrombin generation decreased faster after trauma in the young than the older patients. Across age groups, in vivo thrombin generation separated patients dying/surviving within 30 days at a level comparable to the ISS score (AUC 0.80 vs. 0.82, p > 0.76). In vivo and ex vivo thrombin generation also predicted development of thromboembolic events within the first 30 days after the trauma (AUC 0.70-0.84). In conclusion, younger trauma patients mount a stronger and more dynamic in vivo thrombin response than older patients. Across age groups, in vivo thrombin generation has a strong ability to predict death and/or thromboembolic events 30 days after injury.
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Wang P, Yan X, Fei C, Zhang B, Xing J, Zhang K, Kandemir U. Incidence and risk factors of clinically important venous thromboembolism in tibial plateau fractures. Sci Rep 2022; 12:20206. [PMID: 36424499 PMCID: PMC9691686 DOI: 10.1038/s41598-022-24717-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 11/18/2022] [Indexed: 11/26/2022] Open
Abstract
While there are multiple reports on venous thromboembolism (VTE) associated with several orthopedic procedures, the knowledge regarding incidence and risk factors of VTE in tibial plateau fractures is limited. This study aimed to investigate the incidence and risk factors of clinically important venous thromboembolism (CIVTE) in patients with tibial plateau fractures. All adult patients who underwent surgical treatment of tibia plateau fractures between 2003 and 2018 in our level 1 trauma center were included in the study. All patients suspected CIVTE were assessed by the ultrasonography and/or CT scan. Univariate and multivariate analysis were used to evaluate the association between potential risk factors and CIVTE Variables. Thirty-nine of 462 patients (8.4%) developed clinically important venous thromboembolism, in which pulmonary embolism (PE) and deep vein thrombosis (DVT) were observed in 18 (3.9%) and 21 (4.54%) patients, respectively. Male gender (OR 9.75; 95% CI 2.34-40.66), spine injury (OR 9.51; 95% CI 3.39-26.64), other extremity injury (OR 3.7; 95% CI 1.58-8.66), length of stay in ICU (OR 1.14; 95% CI 1.09-1.2) were all risk factors for CIVTE. The incidence of CIVTE in tibial plateau fracture was relatively high (8.4%); The male gender, spine injury, other extremity injury, length of stay in ICU were the independent risk factors.
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Affiliation(s)
- Pengfei Wang
- grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Xinan Yan
- grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Chen Fei
- grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Binfei Zhang
- grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Jian Xing
- grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Kun Zhang
- grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China ,grid.43169.390000 0001 0599 1243Department of Orthopedics and Traumatology, Honghui Hospital, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Utku Kandemir
- grid.266102.10000 0001 2297 6811Department of Orthopaedic Surgery, University of California, San Francisco, CA USA
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Sloos PH, Vulliamy P, van 't Veer C, Gupta AS, Neal MD, Brohi K, Juffermans NP, Kleinveld DJB. Platelet dysfunction after trauma: From mechanisms to targeted treatment. Transfusion 2022; 62 Suppl 1:S281-S300. [PMID: 35748694 PMCID: PMC9546174 DOI: 10.1111/trf.16971] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Pieter H. Sloos
- Department of Intensive Care Medicine, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Paul Vulliamy
- Centre for Trauma Sciences, Blizard Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Cornelis van 't Veer
- Center for Experimental and Molecular Medicine, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Anirban Sen Gupta
- Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOhioUSA
| | - Matthew D. Neal
- Pittsburgh Trauma and Transfusion Medicine Research Center and Division of Trauma and Acute Care SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Karim Brohi
- Centre for Trauma Sciences, Blizard Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Nicole P. Juffermans
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
- Department of Intensive Care MedicineOLVG HospitalAmsterdamThe Netherlands
| | - Derek J. B. Kleinveld
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
- Department of Intensive Care MedicineErasmus MCRotterdamThe Netherlands
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Abstract
During sepsis, an initial prothrombotic shift takes place, in which coagulatory acute-phase proteins are increased, while anticoagulatory factors and platelet count decrease. Further on, the fibrinolytic system becomes impaired, which contributes to disease severity. At a later stage in sepsis, coagulation factors may become depleted, and sepsis patients may shift into a hypo-coagulable state with an increased bleeding risk. During the pro-coagulatory shift, critically ill patients have an increased thrombosis risk that ranges from developing micro-thromboses that impair organ function to life-threatening thromboembolic events. Here, thrombin plays a key role in coagulation as well as in inflammation. For thromboprophylaxis, low molecular weight heparins (LMWH) and unfractionated heparins (UFHs) are recommended. Nevertheless, there are conditions such as heparin resistance or heparin-induced thrombocytopenia (HIT), wherein heparin becomes ineffective or even puts the patient at an increased prothrombotic risk. In these cases, argatroban, a direct thrombin inhibitor (DTI), might be a potential alternative anticoagulatory strategy. Yet, caution is advised with regard to dosing of argatroban especially in sepsis. Therefore, the starting dose of argatroban is recommended to be low and should be titrated to the targeted anticoagulation level and be closely monitored in the further course of treatment. The authors of this review recommend using DTIs such as argatroban as an alternative anticoagulant in critically ill patients suffering from sepsis or COVID-19 with suspected or confirmed HIT, HIT-like conditions, impaired fibrinolysis, in patients on extracorporeal circuits and patients with heparin resistance, when closely monitored.
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Mi YH, Xu MY. Trauma-induced pulmonary thromboembolism: What's update? Chin J Traumatol 2022; 25:67-76. [PMID: 34404569 PMCID: PMC9039469 DOI: 10.1016/j.cjtee.2021.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/26/2021] [Accepted: 08/02/2021] [Indexed: 02/04/2023] Open
Abstract
Trauma-induced pulmonary thromboembolism is the second leading cause of death in severe trauma patients. Primary fibrinolytic hyperactivity combined with hemorrhage and consequential hypercoagulability in severe trauma patients create a huge challenge for clinicians. It is crucial to ensure a safe anticoagulant therapy for trauma patients, but a series of clinical issues need to be answered first, for example, what are the risk factors for traumatic venous thromboembolism? How to assess and determine the status of coagulation dysfunction of patients? When is the optimal timing to initiate pharmacologic prophylaxis for venous thromboembolism? What types of prophylactic agents should be used? How to manage the anticoagulation-related hemorrhage and to determine the optimal timing of restarting chemoprophylaxis? The present review attempts to answer the above questions.
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Early pharmacologic thromboprophylaxis after splenectomy is associated with better outcomes: A matched cohort study. Am J Surg 2022; 224:535-538. [DOI: 10.1016/j.amjsurg.2022.01.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/20/2022] [Accepted: 01/30/2022] [Indexed: 11/15/2022]
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Nicholson KJ, Rosengart MR, Smith KJ, Neal MD, Myers SP. Investigation into the Cost-Effectiveness of Extended Posttraumatic Thromboprophylaxis. J Am Coll Surg 2022; 234:86-94. [PMID: 35213466 DOI: 10.1097/xcs.0000000000000033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Severely injured patients are at particularly high risk for venous thromboembolism (VTE). Although thromboprophylaxis (PPX) is employed during the inpatient period, patients may continue to be at high risk after discharge. Comparative evidence from surgical subspecialities (eg oncology) reveals benefits of postdischarge (ie extended) PPX. We hypothesized that an extended, postinjury oral thromboprophylaxis regimen would be cost-effective. STUDY DESIGN A cost-utility model compared no PPX with a 30-day course of apixaban, dabigatran, enoxaparin, fondaparinux, or rivaroxaban in trauma patients. Immediate events including deep venous thrombosis, pulmonary embolus, or bleeding within 30 days of injury were modeled in a decision tree with patients entering a Markov process to account for sequelae of VTE, including postthrombotic syndrome and chronic thromboembolic pulmonary hypertension. Effectiveness was measured in quality-adjusted life years. One-way and probabilistic sensitivity analyses were performed to identify conditions under which the preferred PPX strategy changed. RESULTS Rivaroxaban was the dominant strategy (ie less costly and more effective) compared with no PPX or alternative regimens, delivering 30.21 quality-adjusted life years for $404,546.38. One-way sensitivity analyses demonstrated robust preference for rivaroxaban. When examining only patients with moderate-high or high VTE Risk Assessment Profile scores, rivaroxaban remained the preferred strategy. Probabilistic sensitivity analysis demonstrated a preference for rivaroxaban in 100% of cases at a standard willingness-to-pay threshold of $100,000/quality-adjusted life year. CONCLUSIONS A 30-day course of rivaroxaban is a cost-effective extended thromboprophylaxis strategy in trauma patients in this theoretical study. Prospective studies of postdischarge thromboprophylaxis to prevent postinjury VTE are warranted.
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Affiliation(s)
- Kristina J Nicholson
- From the Department of Surgery (Nicholson, Rosengart, Neal, Myers), University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Matthew R Rosengart
- From the Department of Surgery (Nicholson, Rosengart, Neal, Myers), University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Kenneth J Smith
- Department of Internal Medicine (Smith), University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Matthew D Neal
- From the Department of Surgery (Nicholson, Rosengart, Neal, Myers), University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Sara P Myers
- From the Department of Surgery (Nicholson, Rosengart, Neal, Myers), University of Pittsburgh Medical Center, Pittsburgh, PA
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Ren Z, Yuan Y, Qi W, Li Y, Wang P. The incidence and risk factors of deep venous thrombosis in lower extremities following surgically treated femoral shaft fracture: a retrospective case-control study. J Orthop Surg Res 2021; 16:446. [PMID: 34243792 PMCID: PMC8268537 DOI: 10.1186/s13018-021-02595-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/28/2021] [Indexed: 11/29/2022] Open
Abstract
Background There is still a lack of data on deep vein thrombosis (DVT) following surgically treated femoral shaft fracture (FSF). The goal of this study was to investigate the characteristics of postoperative DVT and the association between the occurrence of DVT and risk factors in patients undergoing surgical treatment for FSF. Methods This observational retrospective case-control study reviewed 308 patients who received surgical treatment of FSF between January 2016 and October 2020 at a university hospital. Univariate analyses were performed on the data of demographics, comorbidities, laboratory biomarkers, and operation-related indexes. The receiver operating characteristic (ROC) curve analysis, univariate analyses, and multivariate logistic regression analysis were employed to identify the independent risk factors associated with DVT. Results In total, 308 patients with surgically treated FSF were included, among whom 48 (15.6%) patients had postoperative DVTs. The univariate analyses showing significant differences regarding DVT were American Society of Anesthesiologists (ASA) classification, diabetes mellitus, current smoking, aspartate transaminase (AST), and very-low-density lipoprotein (VLDL) level among the 34 factors. According to the ROC results, the optimal cutoff values for intraoperative blood loss, d-dimer, and age were 350 ml, 1.08 μg/ml, and 35 years, respectively. The multivariable model demonstrated 4 significantly independent associations with postoperative DVT, including current smoking, intraoperative blood loss (> 550 ml), age (> 35 years), and d-dimer > 1.09 μg/ml. Conclusion These risk factors as screening tools contribute to risk stratification of the occurrence of thromboembolic events. In addition, our findings would help orthopedic surgeons make a cross-specialty decision and implement targeted precaution measures for patients with FSF.
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Affiliation(s)
- Zhixin Ren
- Department of Orthopaedic Surgery, The 3rd Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Yufei Yuan
- Department of Orthopaedic Surgery, Handan Central Hospital, Handan, 056000, Hebei, People's Republic of China
| | - Wei Qi
- Department of Orthopaedic Surgery, The First People's Hospital of Taian, Tai'an, 271000, Shandong, People's Republic of China
| | - Yanbao Li
- Department of Orthopaedic Surgery, Handan Central Hospital, Handan, 056000, Hebei, People's Republic of China
| | - Pengcheng Wang
- Department of Orthopaedic Surgery, The 3rd Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
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McCully BH, Wade CE, Fox EE, Inaba K, Cohen MJ, Holcomb JB, Schreiber MA. Temporal profile of the pro- and anti-inflammatory responses to severe hemorrhage in patients with venous thromboembolism: Findings from the PROPPR trial. J Trauma Acute Care Surg 2021; 90:845-852. [PMID: 33797501 PMCID: PMC8068582 DOI: 10.1097/ta.0000000000003088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND The Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) trial showed that 15% of patients developed venous thromboembolism (VTE) following hemorrhage, but the mechanisms are unknown. Since inflammation is associated with hypercoagulability and thrombosis, our goal was to compare the temporal inflammatory profile following hemorrhagic shock in patients with and without VTE. STUDY DESIGN Secondary analysis was performed on data collected from PROPPR. Blood samples collected at 0 hour, 2 hours, 4 hours, 6 hours, 12 hours, 24 hours, 48 hours, and 72 hours following admission were assayed on a 27-target cytokine panel, and compared between VTE (n = 83) and non-VTE (n = 475) patients. p < 0.05 indicated significance. RESULTS Over time, both groups exhibited elevations in proinflammatory mediators interleukin (IL)-6, IL-8, IL-10, granulocyte colony-stimulating factor 57, monocyte chemoattractant protein 1 and macrophage inflammatory protein 1β, and anti-inflammatory mediators IL-1ra and IL-10 (p < 0.05 vs. admission). Venous thromboembolism patients showed amplified responses for IL-6 (6-72 hours) and IL-8 (6-24 hours), which peaked at later time points, and granulocyte colony-stimulating factor 57 (12-24 hours), monocyte chemoattractant protein 1 (6-72 hours), and macrophage inflammatory protein-1 β (2-12 hours) (p < 0.05 vs. non-VTE per time point) that peaked at similar time points to non-VTE patients. The anti-inflammatory responses were similar between groups, but the interleukin-mediated proinflammatory responses continued to rise after the peak anti-inflammatory response in the VTE group. The occurrence rate of adverse events was higher in VTE (97%) versus non-VTE (87%, p = 0.009) and was associated with higher inflammation. CONCLUSION Patients with VTE following hemorrhagic shock exhibited a prolonged and amplified proinflammatory responses mediated by select interleukin, chemotactic, and glycoprotein cytokines that are not antagonized by anti-inflammatory mediators. This response is not related to randomization group, injury severity or degree of shock, but may be linked to adverse events. LEVEL OF EVIDENCE Prognostic, level III.
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Affiliation(s)
- Belinda H. McCully
- Division of Trauma, Critical Care & Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland OR
| | - Charlie E. Wade
- Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, University of Texas Health Science Center, Houston, TX
| | - Erin E. Fox
- Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, University of Texas Health Science Center, Houston, TX
| | - Kenji Inaba
- Divison of Acute Care Surgery, Department of Surgery, University of Southern California, Los Angeles, CA
| | - Mitchell J. Cohen
- Department of Surgery, Denver Health Medical Center and the University of Colorado; Denver, CO
| | - John B. Holcomb
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Martin A. Schreiber
- Division of Trauma, Critical Care & Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland OR
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14
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Song JC, Yang LK, Zhao W, Zhu F, Wang G, Chen YP, Li WQ. Chinese expert consensus on diagnosis and treatment of trauma-induced hypercoagulopathy. Mil Med Res 2021; 8:25. [PMID: 33840386 PMCID: PMC8040221 DOI: 10.1186/s40779-021-00317-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/25/2021] [Indexed: 11/29/2022] Open
Abstract
Trauma-induced coagulopathy (TIC) is caused by post-traumatic tissue injury and manifests as hypercoagulability that leads to thromboembolism or hypocoagulability that leads to uncontrollable massive hemorrhage. Previous studies on TIC have mainly focused on hemorrhagic coagulopathy caused by the hypocoagulable phenotype of TIC, while recent studies have found that trauma-induced hypercoagulopathy can occur in as many as 22.2-85.1% of trauma patients, in whom it can increase the risk of thrombotic events and mortality by 2- to 4-fold. Therefore, the Chinese People's Liberation Army Professional Committee of Critical Care Medicine and the Chinese Society of Thrombosis, Hemostasis and Critical Care, Chinese Medicine Education Association jointly formulated this Chinese Expert Consensus comprising 15 recommendations for the definition, pathophysiological mechanism, assessment, prevention, and treatment of trauma-induced hypercoagulopathy.
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Affiliation(s)
- Jing-Chun Song
- Department of Critical Care Medicine, the 908th Hospital of Joint Logistics Support Forces of Chinese PLA, Nanchang, 330002, China.
| | - Li-Kun Yang
- Department of Neurosurgery, the 904th Hospital of Joint Logistics Support Forces of Chinese PLA, Wuxi, 214044, Jiangsu, China
| | - Wei Zhao
- Division of Vascular and Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Feng Zhu
- Department of Critical Care Medicine, Shanghai East Hospital, Tongji University, Shanghai, 200120, China
| | - Gang Wang
- Department of Critical Care Medicine, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710001, China
| | - Yao-Peng Chen
- Department of Blood Transfusion, the 923th Hospital of Joint Logistics Support Forces of Chinese PLA, Nanning, 530021, China
| | - Wei-Qin Li
- Department of Critical Care Medicine, General Hospital of Eastern Theater Command of Chinese PLA, Nanjing, 210002, China.
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15
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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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16
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Savioli G, Ceresa IF, Caneva L, Gerosa S, Ricevuti G. Trauma-Induced Coagulopathy: Overview of an Emerging Medical Problem from Pathophysiology to Outcomes. MEDICINES (BASEL, SWITZERLAND) 2021; 8:16. [PMID: 33805197 PMCID: PMC8064317 DOI: 10.3390/medicines8040016] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/15/2021] [Accepted: 03/07/2021] [Indexed: 12/17/2022]
Abstract
Coagulopathy induced by major trauma is common, affecting approximately one-third of patients after trauma. It develops independently of iatrogenic, hypothermic, and dilutive causes (such as iatrogenic cause in case of fluid administration), which instead have a pejorative aspect on coagulopathy. Notwithstanding the continuous research conducted over the past decade on Trauma-Induced Coagulopathy (TIC), it remains a life-threatening condition with a significant impact on trauma mortality. We reviewed the current evidence regarding TIC diagnosis and pathophysiological mechanisms and summarized the different iterations of optimal TIC management strategies among which product resuscitation, potential drug administrations, and hemostatis-focused approaches. We have identified areas of ongoing investigation and controversy in TIC management.
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Affiliation(s)
- Gabriele Savioli
- Emergency Department, IRCCS Policlinico San Matteo, PhD University of Pavia, 27100 Pavia, Italy; (I.F.C.); (S.G.)
| | - Iride Francesca Ceresa
- Emergency Department, IRCCS Policlinico San Matteo, PhD University of Pavia, 27100 Pavia, Italy; (I.F.C.); (S.G.)
| | - Luca Caneva
- Anesthesia and Intensive Care, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | - Sebastiano Gerosa
- Emergency Department, IRCCS Policlinico San Matteo, PhD University of Pavia, 27100 Pavia, Italy; (I.F.C.); (S.G.)
| | - Giovanni Ricevuti
- Department of Drug Science, University of Pavia, 27100 Pavia, Italy;
- Saint Camillus International University of Health Sciences, 00152 Rome, Italy
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17
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Waters JH, Bonnet MP. When and how should I transfuse during obstetric hemorrhage? Int J Obstet Anesth 2021; 46:102973. [PMID: 33903001 DOI: 10.1016/j.ijoa.2021.102973] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/09/2021] [Accepted: 02/19/2021] [Indexed: 10/21/2022]
Abstract
The incidence of maternal hemorrhage and blood transfusion has increased over time. Causes of massive hemorrhage, defined as a transfusion > 10 units of erythrocytes, include abnormal placental insertion, preeclampsia, and placental abruption. Although ratio-based transfusion has been described for managing massive hemorrhage, a goal-directed approach using laboratory or point-of-care data may lead to better outcomes. Autotransfusion, which involves the collection, washing, and filtration of maternal shed blood, avoids many of the complications associated with allogeneic blood transfusion. In this review, we provide an overview of transfusion practices related to the management of obstetric hemorrhage.
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Affiliation(s)
- J H Waters
- Department of Anesthesiology & Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Mcgowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.
| | - M P Bonnet
- Sorbonne University, Department of Anesthesia and Intensive Care, Armand Trousseau Hospital, DMU DREAM, GRC 29, AP-HP, Paris, France; Paris University, Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), Obstetric Perinatal and Pediatric Epidemiology Research Team, EPOPé, INSERM, INRA, Paris, France
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18
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Abstract
Physiological fibrinolysis under normal conditions progresses slowly, in contrast to coagulation which is triggered rapidly to stop bleeding and defend against microbial invasion. Methods to detect fibrinolysis abnormalities are less simple and poorly standardized compared with common coagulation tests. Fibrinolysis can be accelerated by preparing euglobulin from plasma to reduce endogenous inhibitors, or by adding plasminogen activators to normal plasma. However, these manipulations complicate interpretation of results and diagnosis of a "fibrinolysis deficit." Many observational studies on antigen levels of fibrinolysis inhibitors, plasminogen activator inhibitor 1 or thrombin-activatable fibrinolysis inhibitor, zymogen or active enzyme have been published. However, conclusions are mixed and there are clear problems with harmonization of results. Viscoelastic methods have the advantage of being rapid and are used as point-of-care tests. They also work with whole blood, allowing the contribution of platelets to be explored. However, there are no agreed protocols for applying viscoelastic methods in acute care for the diagnosis of hyperfibrinolysis or to direct therapy. The emergence of SARS-CoV-2 and the dangers of associated coagulopathy provide new challenges. A common finding in hospitalized patients is high levels of D-dimer fibrin breakdown products, indicative of ongoing fibrinolysis. Well-established problems with D-dimer testing standardization signal that we should be cautious in using results from such tests as prognostic indicators or to target therapies.
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Affiliation(s)
- Colin Longstaff
- Department of Biotherapeutics, National Institute for Biological Standards and Control, South Mimms, Herts, United Kingdom
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19
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Hecht JP, Han EJ, Cain-Nielsen AH, Scott JW, Hemmila MR, Wahl WL. Association of timing of initiation of pharmacologic venous thromboembolism prophylaxis with outcomes in trauma patients. J Trauma Acute Care Surg 2021; 90:54-63. [PMID: 32890341 DOI: 10.1097/ta.0000000000002912] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Patients are at a high risk for developing venous thromboembolism (VTE) following traumatic injury. We examined the relationship between timing of initiation of pharmacologic prophylaxis with VTE complications. METHODS Trauma quality collaborative data from 34 American College of Surgeons Committee on Trauma-verified levels I and II trauma centers were analyzed. Patients were excluded if they were on anticoagulant therapy at the time of injury, had hospitalization <48 hours, or received no or nonstandard pharmacologic VTE prophylaxis (heparin drip). Patient comparison groups were based on timing of initiation of VTE prophylaxis relative to hospital presentation (0 to <24 hours, 24 to <48 hours, ≥48 hours). Risk-adjusted rates of VTE events were calculated accounting for patient factors including type of pharmacologic agent in addition to standard trauma patient confounders. A sensitivity analysis was performed excluding patients who received blood in the first 4 hours and/or patients with a significant traumatic brain injury. RESULTS Within the 79,386 patients analyzed, there were 1,495 (1.9%) who experienced a VTE complication and 1,437 (1.8%) who died. After adjusting for type of prophylaxis and patient factors, the risk of a VTE event was significantly increased in the 24- to <48-hour (odds ratio, 1.26; 95% confidence interval, 1.09-1.47; p = 0.002) and ≥48-hour (odds ratio, 2.35; 95% confidence interval, 2.04-2.70; p < 0.001) cohorts relative to patients initiated at 0 to <24 hours. These VTE event findings remained significant after exclusion of perceived higher-risk patients in a sensitivity analysis. CONCLUSION Early initiation of pharmacologic VTE prophylaxis in stable trauma patients is associated with lower rates of VTE. LEVEL OF EVIDENCE Diagnostic, level III.
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Affiliation(s)
- Jason P Hecht
- From the Inpatient Pharmacy (J.P.H.), Saint Joseph Mercy Hospital; Department of Pharmacy (E.J.H.), Center for Health Outcomes and Policy (A.H.C.-N., J.W.S., M.R.H.), and Department of Surgery (J.W.S., M.R.H.), University of Michigan, Ann Arbor, Michigan; and Department of Surgery (W.L.W.), The Ohio State University Wexner Medical Center, Columbus, Ohio
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20
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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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21
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Mulder MB, Proctor KG, Valle EJ, Livingstone AS, Nguyen DM, Van Haren RM. Hypercoagulability After Resection of Thoracic Malignancy: A Prospective Evaluation. World J Surg 2020; 43:3232-3238. [PMID: 31407092 DOI: 10.1007/s00268-019-05123-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Rates of venous thromboembolism are increased in thoracic malignancy; however, coagulation patterns are not established. We hypothesize that patients with esophageal and lung malignancy have similar hypercoagulable pre- and postoperative profiles as defined by rotational thromboelastometry (ROTEM). METHODS Prospective study was conducted in 47 patients with esophageal and lung cancer undergoing surgical resection. ROTEM evaluated pre/postoperative coagulation status. RESULTS Patients with thoracic malignancy were hypercoagulable by ROTEM, but not by conventional coagulation tests. Preoperative hypercoagulability was higher in lung versus esophageal cancer (64 vs. 16%, p = 0.001). Lung cancer patients that were hypercoagulable preoperatively demonstrated decreased maximum clot firmness (MCF) (p = 0.044) and increased clot time (p = 0.049) after surgical resection, suggesting reversal of hypercoagulability. Resection of esophageal cancer increased hypercoagulability (16 vs. 56%, p = 0.002) via elevated MCF (reflecting platelet activity). Hypercoagulability remained at follow-up clinic for both lung and esophageal cancer patients. CONCLUSIONS Hypercoagulability in patients with lung malignancies reversed following complete surgical resection, whereas hypercoagulability occurred only postoperatively in those with esophageal malignancies. In both, hypercoagulability was associated with fibrin and platelet function.
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Affiliation(s)
- Michelle B Mulder
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Kenneth G Proctor
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Evan J Valle
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Alan S Livingstone
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Dao M Nguyen
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Robert M Van Haren
- Division of Thoracic Surgery, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45267, USA.
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22
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Wirtz MR, Schalkers DV, Goslings JC, Juffermans NP. The impact of blood product ratio and procoagulant therapy on the development of thromboembolic events in severely injured hemorrhaging trauma patients. Transfusion 2020; 60:1873-1882. [PMID: 32579252 PMCID: PMC7497022 DOI: 10.1111/trf.15917] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Transfusion therapy in hemorrhaging trauma patients is associated with the development of thromboembolic events. It is unknown whether current resuscitation strategies, including large volumes of plasma and early administration of procoagulant therapy, increases this risk. METHODS A systematic search was conducted in MEDLINE, PubMed, and Embase. Studies were screened by two independent reviewers and included if they reported on thromboembolic events in patients with severe trauma (injury severity score ≥16) who received transfusion of at least 1 unit of red blood cells. The ratio by which blood products were transfused, as well as use of procoagulant or antifibrinolytic medication, was recorded. RESULTS A total of 40 studies with 11.074 bleeding trauma patients were included, in which 1.145 thromboembolic events were reported, yielding an incidence of 10% thromboembolic events. In studies performing routine screening for thromboembolic complications, the incidence ranged from 12% to 23%. The risk of thromboembolic events was increased after administration of tranexamic acid (TXA; odds ratio [OR], 2.6; 95% confidence interval [CI], 1.7-4.1; p < 0.001) and fibrinogen concentrate (OR, 2.1; 95% CI, 1.0-4.2; p = 0.04). Blood product ratio, the use of prothrombin complex concentrate or recombinant factor VIIa were not associated with thromboembolic events. CONCLUSION This systematic review identified an incidence of thromboembolic events of 10% in severely injured bleeding trauma patients. The use of TXA and fibrinogen concentrate was associated with the development of thromboembolic complications.
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Affiliation(s)
- Mathijs R Wirtz
- Department of Intensive Care, Amsterdam University Medical Centers, location Academic Medical Centre, Amsterdam, The Netherlands.,Trauma Unit, Department of Surgery, Amsterdam University Medical Centers, location Academic Medical Centre, Amsterdam, The Netherlands
| | - Daisy V Schalkers
- Department of Intensive Care, Amsterdam University Medical Centers, location Academic Medical Centre, Amsterdam, The Netherlands
| | - J Carel Goslings
- Trauma Unit, Department of Trauma Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Nicole P Juffermans
- Department of Intensive Care, Amsterdam University Medical Centers, location Academic Medical Centre, Amsterdam, The Netherlands
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23
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Waters JH. The role of viscoelastic testing in the management of the parturient. Transfusion 2020; 60 Suppl 6:S70-S74. [PMID: 32567712 DOI: 10.1111/trf.15928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 01/29/2023]
Abstract
Viscoelastic testing is the measurement of how the viscoelastic properties of blood change as blood clots. In pregnancy, unique changes in clotting function occur overall to make the pregnant woman hypercoagulable. Viscoelastic testing may be able to play a role in guiding placement of epidural and spinal anesthetics by demonstrating enhanced coagulation function, even when there are individual parts of the coagulation system that are abnormal, for example, thrombocytopenia. These tools may also play a role in addressing the management of maternal hemorrhage, which in the United States is on the rise. This review discusses the opportunity to use viscoelastic testing in the parturient.
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Affiliation(s)
- Jonathan H Waters
- Department of Anesthesiology and Bioengineering, University of Pittsburgh, The McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania, USA
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Abstract
OBJECTIVE To review the current literature on the use of viscoelastic hemolytic assays, such as thromboelastography (TEG) and rotational thromboelastometry (ROTEM), during the perioperative period of patients and determine the ability of TEG and ROTEM to detect hypercoagulability and identify increased risk of the development of venous thromboembolism (VTE). DATA SOURCES PubMed, EMBASE, and Cochrane online databases were queried through February 11, 2018, by pairing the terms "thromboelastography," "viscoelastic hemostatic assays," and "rotational thromboelastometry" with "venous thromboembolism," "deep vein thrombosis," "pulmonary embolism," and "hypercoagulability." STUDY SELECTION Inclusion and exclusion criteria were established to determine relevance and quality of data, of which 2.54% of initially identified studies met. DATA EXTRACTION AND SYNTHESIS Articles and citations were reviewed for relevance by 2 independent individuals following PRISMA guidelines as well as a quality assessment of data as established by Zaza et al. In studies that separated patients postoperatively by VTE development or no VTE development, data were pooled utilizing a modified DerSimmion and Laird random effects model. RESULTS One thousand eight hundred ninety-three articles were assessed for eligibility, yielding 370 abstracts. Of the 370 abstracts, 35 studies were included, and of these, only 5 were included in the meta-analysis. Studies included postsurgical patients in a variety of surgical fields, encompassing a total of 8939 patients, with 717 thrombotic events reported. Elevated maximum amplitude (MA) was a statistically significant indicator of hypercoagulability across at least 1 perioperative time point in 17 (50%) of the articles reviewed, consisting of 6348 (72%) patients. The pooled mean MA value for defining hypercoagulability was greater than 66.70 mm. Using a prepublished value for hypercoagulability of 65 mm, the combined effect of MA on the development of VTE in postsurgical patients was determined to be 1.31 (95% confidence, 0.74-2.34, P = 0.175) and was 46% sensitive and 62% specific in predicting a postoperative VTE. CONCLUSIONS Only 1 parameter, MA, was consistently used to both define hypercoagulability and be predictive of VTE after traumatic injury and surgical intervention; however, there remains a broad variability in the definition of hypercoagulability as determined by MA and thus limits its predictive ability. In addition, when hypercoagulability was measured throughout the perioperative period, TEG consistently demonstrated hypercoagulability starting on post-op day 1 (POD1). LEVEL OF EVIDENCE Diagnostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Not all in your head (and neck): Stroke after blunt cerebrovascular injury is associated with systemic hypercoagulability. J Trauma Acute Care Surg 2020; 87:1082-1087. [PMID: 31453984 DOI: 10.1097/ta.0000000000002443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Stroke secondary to blunt cerebrovascular injury (BCVI) most often occurs before initiation of antithrombotic therapy. Earlier treatment, especially in multiply injured patients with relative contraindications to antithrombotic agents, could be facilitated with improved risk stratification; furthermore, the relationship between BCVI-attributed stroke and hypercoagulability remains unknown. We hypothesized that patients who suffer BCVI-related stroke are hypercoagulable compared with those with BCVI who do not stroke. METHODS Rapid thromboelastography (TEG) was evaluated for patients with BCVI-attributed stroke at an urban Level I trauma center from 2011 to 2018. Contemporary controls who had BCVI but did not stroke were selected for comparison using propensity-score matching with 20% caliper that accounted for age, sex, injury severity, and BCVI location and grade. RESULTS During the study period, 15,347 patients were admitted following blunt trauma. Blunt cerebrovascular injury was identified in 435 (3%) patients, of whom 28 experienced associated stroke and had a TEG within 24 hours of arrival. Forty-nine patients who had BCVI but did not suffer stroke served as matched controls. Stroke patients formed clots faster as evident in their larger angle (77.5 degrees vs. 74.6 degrees, p = 0.03) and had greater clot strength as indicated by their higher maximum amplitude (MA) (66.9 mm vs. 61.9 mm, p < 0.01). Activated clotting time was shorter among stroke patients but not significantly (113 seconds vs. 121 seconds, p > 0.05). Increased angle and elevated MA were significant predictors of stroke with odds ratios of 2.97 for angle greater than 77.3 degrees and 4.30 for MA greater than 63.0 mm. CONCLUSION Patients who suffer BCVI-related stroke are hypercoagulable compared with those with BCVI who remain asymptomatic. Increased angle or MA should be considered when assessing the risk of thrombosis and determining the optimal time to initiate antithrombotic therapy in patients with BCVI. LEVEL OF EVIDENCE Prognostic, Level III.
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Krantz EN, Philpott CD, Droege ME, Mueller EW, Ernst NE, Garber PM, Tsuei BJ, Goodman MD, Droege CA. Retrospective Evaluation of Venous Thromboembolism Prophylaxis in Elderly, High-Risk Trauma Patients. J Surg Res 2020; 249:225-231. [PMID: 31991331 DOI: 10.1016/j.jss.2019.12.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Venous thromboembolism (VTE) risk increases with age. Scarce data exist for patients age ≥65 y. This study evaluated VTE incidence in elderly, high-risk trauma patients receiving unfractionated heparin (UFH) or enoxaparin chemoprophylaxis. MATERIALS AND METHODS This retrospective, single-center, cohort study included trauma patients age ≥ 65 y with risk assessment profile (RAP) ≥ 5 who received UFH or enoxaparin chemoprophylaxis. The primary outcome was VTE incidence requiring therapeutic anticoagulation. An age-modified RAP (RAP-AM) was calculated as RAP without age distribution points. Logistic regression analyses were performed to identify independent predictors for VTE development and chemoprophylactic agent selection. Bleeding incidence compared packed red blood cells utilized. RESULTS A total of 1090 patients were included (UFH, n = 655; enoxaparin, n = 435). VTE occurred in 39 (3.6%) patients with no difference between groups in proximal deep vein thrombosis (2.1% versus 3.0%, P = 0.52) or pulmonary embolism (1.2% versus 1.4%, P = 0.96). Weight ≥125 kg (OR 4.12, 95% CI 1.06-16.11) and RAP-AM ≥ 5 (OR 6.52, 95% CI 2.65-16.03) were independently associated with VTE development. Increasing age (OR 1.04, 95% CI 1.03-1.06), initiation ≤ 24 h (OR 2.17, 95% CI 1.66-2.84) and creatinine clearance ≤ 30 mL/min (OR 1.61, 95% CI 1.17-2.21) were independent predictors of receiving UFH whereas increasing ISS (OR 0.97, 95% CI 0.95-0.99) was associated with receiving enoxaparin. CONCLUSIONS VTE incidence may be similar for high-risk, elderly trauma patients receiving UFH and enoxaparin chemoprophylaxis. Further research is necessary to determine noninferiority of UFH to enoxaparin in this patient population.
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Affiliation(s)
- Erica N Krantz
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio.
| | - Carolyn D Philpott
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio
| | - Molly E Droege
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio
| | - Eric W Mueller
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio
| | - Neil E Ernst
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio
| | - Paige M Garber
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio
| | - Betty J Tsuei
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Michael D Goodman
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Christopher A Droege
- UC Health - University of Cincinnati Medical Center, Cincinnati, Ohio; University of Cincinnati James L. Winkle College of Pharmacy, Cincinnati, Ohio
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Bethea A, Samanta D, Deshaies D, Richmond BK. Determination of Optimal Weight-Based Enoxaparin Dosing and Associated Clinical Factors for Achieving Therapeutic Anti-Xa Assays for Deep Venous Thrombosis Prophylaxis. J Am Coll Surg 2019; 229:295-304. [DOI: 10.1016/j.jamcollsurg.2019.03.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/25/2019] [Accepted: 03/25/2019] [Indexed: 01/01/2023]
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Dynamic coagulability after injury: Is delaying venous thromboembolism chemoprophylaxis worth the wait? J Trauma Acute Care Surg 2019; 85:907-914. [PMID: 30124623 DOI: 10.1097/ta.0000000000002048] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Severely injured patients often progress from early hypocoagulable to normal and eventually hypercoagulable states, developing increased risk for venous thromboembolism (VTE). Prophylactic anticoagulation can decrease this risk, but its initiation is frequently delayed for extended periods due to concerns for bleeding. To facilitate timely introduction of VTE chemoprophylaxis, we characterized the transition from hypo- to hypercoagulability and hypothesized that trauma-induced coagulopathy resolves within 24 hours after injury. METHODS Serial blood samples were collected prospectively from critically injured patients for 120 hours after arrival at an urban Level I trauma center. Extrinsic thromboelastometry maximum clot firmness was used to classify patients as hypocoagulable (HYPO, <49 mm), normocoagulable (NORM, 49-71 mm), or hypercoagulable (HYPER, >71 mm) at each time point. Changes in coagulability over hospital course, VTE occurrence, and timing of prophylaxis initiation were analyzed. RESULTS 898 patients (median Injury Severity Score, 13; mortality, 12%; VTE, 8%) were enrolled. Upon arrival, 3% were HYPO (90% NORM, 7% HYPER), which increased to 9% at 6 hours before down-trending. Ninety-seven percent were NORM by 24 hours, and 53% were HYPER at 120 hours. Median maximum clot firmness began in the NORM range, up-trended gradually, and entered the HYPER range at 120 hours. Patients with traumatic brain injury (TBI) followed a similar course and were not more HYPO at any time point than those without TBI. Failure to initiate prophylaxis by 72 hours was predicted by TBI and associated with VTE development (27% vs 16%, p < 0.05). CONCLUSIONS Regardless of injury pattern, trauma-induced coagulopathy largely resolves within 24 hours, after which hypercoagulability becomes increasingly more prevalent. Deferring initiation of chemoprophylaxis, which is often biased toward patients with intracranial injuries, is associated with VTE development. LEVEL OF EVIDENCE Prognostic study, level III; Therapeutic, level IV.
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Severely injured trauma patients with admission hyperfibrinolysis: Is there a role of tranexamic acid? Findings from the PROPPR trial. J Trauma Acute Care Surg 2019; 85:851-857. [PMID: 29985230 DOI: 10.1097/ta.0000000000002022] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Administration of tranexamic acid (TXA) in coagulopathy of trauma gained popularity after the CRASH-2 trial. The aim of our analysis was to analyze the role of TXA in severely injured trauma patients with admission hyperfibrinolysis. METHODS We reviewed the prospectively collected Pragmatic, Randomized Optimal Platelet and Plasma Ratios database. We included patients with admission hyperfibrinolysis (Ly30 >3%) on thromboelastography. Patients were stratified into two groups (TXA and No-TXA) and were matched in 1:2 ratio using propensity score matching for demographics, admission vitals, and injury severity. Primary outcome measures were 6-, 12-, and 24-hour and 30-day mortality; 24-hour transfusion requirements; time to achieve hemostasis; and rebleeding after hemostasis requiring intervention. Secondary outcome measures were thrombotic complications. RESULTS We analyzed 680 patients. Of those, 118 had admission hyperfibrinolysis, and 93 patients (TXA: 31 patients; No-TXA: 62 patients) were matched. Matched groups were similar in age (p = 0.33), gender (p = 0.84), race (p = 0.81), emergency department (ED) Glasgow Coma Scale (p = 0.34), ED systolic blood pressure (p = 0.28), ED heart rate (p = 0.43), mechanism of injury (p = 0.45), head Abbreviated Injury Scale score (p = 0.68), injury severity score (p = 0.56), and blood products ratio (p = 0.44). Patients who received TXA had a lower 6-hour mortality rate (34% vs. 13%, p = 0.04) and higher 24-hour transfusion of plasma (15 vs. 10 units, p = 0.03) compared with the No-TXA group. However, there was no difference in 12-hour (p = 0.24), 24-hour (p = 0.25), and 30-day mortality (p = 0.82). Similarly, there was no difference in 24-hour transfusion of RBC (p = 0.11) or platelets (p = 0.13), time to achieve hemostasis (p = 0.65), rebleeding requiring intervention (p = 0.13), and thrombotic complications (p = 0.98). CONCLUSION Tranexamic acid was associated with increased 6-hour survival but does not improve long-term outcomes in severely injured trauma patients with hemorrhage who develop hyperfibrinolysis. Moreover, TXA administration was not associated with thrombotic complications. Further randomized clinical trials will identify the subset of trauma patients who may benefit from TXA. LEVEL OF EVIDENCE Therapeutic study, level III.
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Risk Factors and Clinical Outcomes Associated With Augmented Renal Clearance in Trauma Patients. J Surg Res 2019; 244:477-483. [PMID: 31330291 DOI: 10.1016/j.jss.2019.06.087] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/21/2019] [Accepted: 06/20/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND Augmented renal clearance (ARC; i.e., creatinine clearance [CLCr] ≥ 130 mL/min) has an incidence of 14%-80% in critically ill patients and has been associated with therapy failures for renally cleared drugs. However, the clinical implications of ARC are poorly defined. We hypothesize that modifiable risk factors that contribute to ARC can be identified in severely injured trauma patients and that these risk factors influence clinical outcome. METHODS In 207 trauma intensive care unit patients, 24-h CLCr was correlated with clinical estimates of glomerular filtration rate (by Cockroft-Gault, modification of diet in renal disease, or chronic kidney disease epidemiology), and clinical outcomes (infection, venous thromboembolism [VTE], length of stay, and mortality). RESULTS The population was 45 ± 20 y, 68% male, 77% blunt injury with injury severity score of 24 (17-30). Admission serum creatinine was 1.02 ± 0.35 mg/dL, CLCr was 154 ± 77 mL/min, VTE incidence was 15%, ARC incidence was 57%, and mortality was 11%. Clinical estimates of glomerular filtration rate by Cockroft-Gault, modification of diet in renal disease, chronic kidney disease epidemiology underestimated actual CLCr by 20%, 22%, or 15% (all P < 0.01). CLCr was higher in males and those who survived, and lower in those with hypertension, diabetes, positive cultures, receiving transfusions, or pressors (all P < 0.05). On multivariate analysis, male gender (odds ratio [OR] 2.9 [1.4-6.1]), age (OR 0.97 [0.95-0.99]), and packed red blood cells transfusion (OR 0.31 [0.15-0.66]) were the only independent predictors of ARC. CONCLUSIONS ARC occurs in more than half of all high-risk trauma intensive care unit patients and is underestimated by standard clinical equations. ARC was not associated with increased incidence of VTE or infection but rather is associated with younger healthier males and reduced mortality. ARC seems to be a beneficial compensatory response to trauma.
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Myers SP, Brown JB, Leeper CM, Kutcher ME, Chen X, Wade CE, Holcomb JB, Schreiber MA, Cardenas JC, Rosengart MR, Neal MD. Early versus late venous thromboembolism: A secondary analysis of data from the PROPPR trial. Surgery 2019; 166:416-422. [PMID: 31230842 DOI: 10.1016/j.surg.2019.04.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/25/2019] [Accepted: 04/13/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Factors predicting timing of post-traumatic venous thromboembolism (VTE) remain incompletely understood. Because the balance between hemorrhage and thrombosis is dynamic during a patient's hospital course, early and late VTE may be physiologically discrete processes. This secondary analysis of the Pragmatic, Randomized Optimal Platelet and Plasma Ratios (PROPPR) trial aims to explore whether certain risk factors are associated with early versus late VTE. METHODS The PROPPR trial investigated post-traumatic resuscitation with platelets, plasma, and red blood cells in a 1:1:1 ratio compared with a 1:1:2 ratio. Multinomial regression based on a threshold determined by cubic spline analysis tested the association of clinical variables with early or late VTE, a composite of deep vein thrombosis and pulmonary embolus, adjusting for predetermined confounders. RESULTS Of the 87 patients (13%) with VTE, pulmonary embolus was predominant in the first 72 hours. A statistically determined threshold at 12 days corresponded to change in odds of early versus late events. Variables associated with early VTE included plasma transfusion (risk ratio [RR] 1.14; 95% confidence interval, 1.00, 1.30; P = .05), sepsis (RR 0.05; 95% confidence interval, 1.40, 6.64; P = .01), pelvic or femur fracture (RR 2.62; 95% confidence interval, 1.00, 6.90; P = .05). Late VTE was associated with dialysis (RR 7.37; 95% confidence interval, 1.59, 34.14; P = .01), older age (RR 1.02; 95% confidence interval 1.00, 1.04; P = .05), and delayed resuscitation approaching ratios of 1:1:1 among patients randomized to 1:1:2 therapy (RR 2.06; 95% confidence interval, 0.28, 3.83; P = .02). Cyroprecipitate increased risk of early (RR 1.04, 95% confidence interval, 1.00,1.08; P < .03) and late VTE (1.05; 95% confidence interval, 1.01, 1.09; P = .01). Prolonged lagtime (coeffcient 0.06, 95% confidence interval, 0.02, 0.10; P < .01) and time-to-peak thrombin generation (coeffcient 0.04, 95% confidence interval, 0.02, 0.07; P < .01) were associated with increased risk of early VTE. CONCLUSION Early and late VTE may differ in their risk factors. Defining temporal trends in VTE may allow for a more individualized approach to thromboprophylaxis.
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Affiliation(s)
- Sara P Myers
- Department of General Surgery, The University of Pittsburgh Medical Center, Pittsburgh, PA.
| | - Joshua B Brown
- Department of General Surgery, The University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Christine M Leeper
- Department of General Surgery, The University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Matthew E Kutcher
- Division of Trauma and Critical Care, The University of Mississippi Medical Center, Jackson, MI
| | - Xilin Chen
- Pittsburgh Surgical Outcomes Research Center, University of Pittsburgh, Pittsburgh, PA
| | - Charles E Wade
- Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, University of Texas Health Science Center, Houston, TX
| | - John B Holcomb
- Division of Acute Care Surgery, Department of Surgery, McGovern School of Medicine, Houston, TX
| | - Martin A Schreiber
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health and Science University, Portland, OR
| | - Jessica C Cardenas
- Division of Acute Care Surgery, Department of Surgery, McGovern School of Medicine, Houston, TX
| | - Matthew R Rosengart
- Department of General Surgery, The University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Matthew D Neal
- Department of General Surgery, The University of Pittsburgh Medical Center, Pittsburgh, PA
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Benipal S, Santamarina JL, Vo L, Nishijima DK. Mortality and Thrombosis in Injured Adults Receiving Tranexamic Acid in the Post-CRASH-2 Era. West J Emerg Med 2019; 20:443-453. [PMID: 31123544 PMCID: PMC6526890 DOI: 10.5811/westjem.2019.4.41698] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 04/10/2019] [Accepted: 04/08/2019] [Indexed: 12/13/2022] Open
Abstract
Introduction The CRASH-2 trial demonstrated that tranexamic acid (TXA) reduced mortality with no increase in adverse events in severely injured adults. TXA has since been widely used in injured adults worldwide. Our objective was to estimate mortality and adverse events in adults with trauma receiving TXA in studies published after the CRASH-2 trial. Methods We systematically searched PubMed, Embase, MicroMedex, and ClinicalTrials.gov for studies that included injured adults who received TXA and reported mortality and/or adverse events. Two reviewers independently assessed study eligibility, abstracted data, and assessed the risk of bias. We conducted meta-analyses using random effects models to estimate the incidence of mortality at 28 or 30 days and in-hospital thrombotic events. Results We included 19 studies and 13 studies in the systematic review and meta-analyses, respectively. The pooled incidence of mortality at 28 or 30 days (five studies, 1538 patients) was 10.1% (95% confidence interval [CI], 7.8–12.4%) (vs 14.5% [95% CI, 13.9–15.2%] in the CRASH-2 trial), and the pooled incidence of in-hospital thrombotic events (nine studies, 1656 patients) was 5.9% (95% CI, 3.3–8.5%) (vs 2.0% [95% CI, 1.8–2.3%] in the CRASH-2 trial). Conclusion Compared to the CRASH-2 trial, adult trauma patients receiving TXA identified in our systematic review had a lower incidence of mortality at 28 or 30 days, but a higher incidence of in-hospital thrombotic events. Our findings neither support nor refute the findings of the CRASH-2 trial but suggest that incidence rates in adults with trauma in settings outside of the CRASH-2 trial may be different than those observed in the CRASH-2 trial.
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Affiliation(s)
- Simranjeet Benipal
- Universtiy of California, Davis Medical Center, Department of Emergency Medicine, Sacramento, California
| | - John-Lloyd Santamarina
- Universtiy of California, Davis Medical Center, Department of Emergency Medicine, Sacramento, California
| | - Linda Vo
- Universtiy of California, Davis Medical Center, Department of Emergency Medicine, Sacramento, California
| | - Daniel K Nishijima
- Universtiy of California, Davis Medical Center, Department of Emergency Medicine, Sacramento, California
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Ostrowka C, Bonhomme S, Jouffroy P, Riouallon G. Evaluation of venous thromboembolic complications in patients operated on for pelvic fracture. Orthop Traumatol Surg Res 2018; 104:917-921. [PMID: 29906522 DOI: 10.1016/j.otsr.2018.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/12/2018] [Accepted: 04/11/2018] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Fractures of the pelvis (acetabulum and pelvic ring) are complex in both radiological diagnosis and therapeutic management. They show high-risk of thrombosis, with variable rates of venous thromboembolic complications in the literature, ranging from 10% to 50%, with 0.5-10% risk of fatal pulmonary embolism. The objective of the present study was to determine the rate of venous thromboembolic events in a consecutive cohort of pelvic fracture and to attempt to identify thromboembolic risk factors in this population. MATERIAL AND METHOD The study was based on a continuous retrospective series of 120 patients operated on between January 2015 and January 2017. Standard demographic data, clinical and diagnostic data for the fracture and the surgical approach were collected. Risk factors for venous thrombotic episodes were identified on Greenfield Risk Assessment Profile items (age, BMI, cancer, history of venous thromboembolism, surgery time, transfusion, femoral venous catheter, associated fracture) to define groups with high or low thrombotic risk. RESULTS There was a 5% rate of venous thromboembolic events, and 2.5% of pulmonary embolism including 1 causing intraoperative death. The Greenfield score usually applied in surgery to assess venous thromboembolic risk did not seem relevant in this population already at high-risk of venous thromboembolism. No additional independent risk factors were identified. CONCLUSION This is the largest cohort focusing on thromboembolic risk in pelvic fracture. The results refine rates reported in the literature. A prospective study, currently underway, should highlight risk factors so as better to prevent these complications.
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Affiliation(s)
- Candice Ostrowka
- Service de médecine vasculaire, groupe hospitalier Paris Saint-Joseph, 75014 Paris, France
| | - Stéphanie Bonhomme
- Service de médecine vasculaire, groupe hospitalier Paris Saint-Joseph, 75014 Paris, France
| | - Pomme Jouffroy
- Service de chirurgie orthopédique, groupe hospitalier Paris Saint-Joseph, 75014 Paris, France
| | - Guillaume Riouallon
- Service de chirurgie orthopédique, groupe hospitalier Paris Saint-Joseph, 75014 Paris, France.
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Increased risk of fibrinolysis shutdown among severely injured trauma patients receiving tranexamic acid. J Trauma Acute Care Surg 2018; 84:426-432. [DOI: 10.1097/ta.0000000000001792] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Lin JN, Chen HJ, Lin MC, Lai CH, Lin HH, Yang CH, Kao CH. Risk of venous thromboembolism in patients with splenic injury and splenectomy. Thromb Haemost 2017; 115:176-83. [DOI: 10.1160/th15-05-0381] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 07/21/2015] [Indexed: 11/05/2022]
Abstract
SummaryThe spleen is a crucial organ in humans. However, little is known about the association of venous thromboembolism (VTE) with splenic injury and splenectomy in trauma patients. The aim of this study was to determine the subsequent risk of VTE following splenic injury and splenectomy. A nationwide retrospective cohort study was conducted by analysing data from the National Health Insurance Research Database in Taiwan. We included 6,162 splenic injury patients (3,033 splenectomised and 3,129 nonsplenectomised patients) and 24,648 comparison patients who were selected by frequency match based on sex, age, and the index year during 2000–2006. All patients were followed until the occurrence of VTE, 31 December, 2011, death, or withdrawal from the insurance program. The age of patients with splenic injury was 41.93 ± 16.44 years. The incidence rates of VTE were 11.81, 8.46, and 5.21 per 10,000 person-years in the splenic injury patients with splen -ectomy, splenic injury patients without splenectomy, and comparison patients, respectively. Compared with the comparison cohort, splenic injury patients with splenectomy exhibited a 2.21-fold risk of VTE (95 % confidence interval [CI], 1.43–3.43), whereas those without splenectomy exhibited a 1.71-fold risk of VTE (95 % CI, 1.05–2.80). The overall incidence rate of VTE was 1.97-fold higher in the splenic injury cohort than the comparison cohort (95 % CI, 1.38–2.81). Although splenectomy increased the risk of VTE 1.35-fold compared with no splenectomy, the difference was not statistically significant (95 % CI, 0.74–2.45). These results may alert physicians and patients to the complications of splenic injury and splenectomy.
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Anti-Xa-guided enoxaparin thromboprophylaxis reduces rate of deep venous thromboembolism in high-risk trauma patients. J Trauma Acute Care Surg 2017; 81:1101-1108. [PMID: 27488490 DOI: 10.1097/ta.0000000000001193] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Appropriate prophylaxis against venous thromboembolism (VTE) remains undefined. This study evaluated an anti-Xa-guided enoxaparin thromboprophylaxis (TPX) protocol on the incidence of VTE in high-risk trauma patients based on Greenfield's Risk Assessment Profile (RAP) score. METHODS This is a retrospective observational study of patients admitted to a trauma intensive care unit over a 12-month period. Patients were included if they received anti-Xa-guided enoxaparin TPX. Dosage was adjusted to a prophylactic peak anti-Xa level of 0.2 to 0.4 IU/mL. Subgroup analysis was performed on high-risk patients (RAP score ≥10) who received lower-extremity duplex ultrasound surveillance for deep vein thrombosis (DVT). Data are expressed as mean ± SD. Significance was assessed at p < 0.05. RESULTS One hundred thirty-one patients received anti-Xa-guided enoxaparin TPX. Four patients were excluded for age or acute VTE on admission. Fifty-six patients with RAP score of ≥10 and surveillance duplex evaluations were included in the subgroup analysis with mean age 43 ± 20 years, Injury Severity Score of 25 ± 10, and RAP score of 16 ± 4. Prophylactic anti-Xa levels were initially achieved in 34.6% of patients. An additional 25.2% required 40 to 60 mg twice daily to reach prophylactic levels; 39.4% never reached prophylactic levels. Weight, body mass index, ISS, and RAP score were significantly higher with subprophylactic anti-Xa levels. One patient developed bleeding complications (0.8%). No patient developed intracerebral bleeding or heparin-induced thrombocytopenia.Nine VTE events occurred in the high-risk subgroup, including four DVT (7.1%), all asymptomatic, and five pulmonary emboli (8.9%). The historical rate of DVT in similar patients (ISS 31 ± 12 and RAP score 16 ± 5) was 20.5%, a significant decrease (p = 0.031). Mean chest Abbreviated Injury Scale scores were significantly higher for patients developing pulmonary emboli than DVT, 3.0 ± 1.1 vs. 0.0 (p < 0.001). CONCLUSIONS Mean chest Abbreviated Injury Scale score was higher in patients developing pulmonary embolism. Increased weight, body mass index, ISS, and RAP score are associated with subprophylactic anti-Xa levels. Anti-Xa-guided enoxaparin dosing reduced the rate of DVT from 20.5% to 7.1% in high-risk trauma patients. LEVEL OF EVIDENCE Therapeutic study, level IV.
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Pannucci CJ, Obi AT, Timmins BH, Cochran AL. Venous Thromboembolism in Patients with Thermal Injury. Clin Plast Surg 2017; 44:573-581. [DOI: 10.1016/j.cps.2017.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Tapson VF, Hazelton JP, Myers J, Robertson C, Gilani R, Dunn JA, Bukur M, Croce MA, Peick A, West S, Lottenberg L, Doucet J, Miller PR, Crookes B, Gandhi RR, Croft CA, Manasia A, Hoey BA, Lieberman H, Guillamondegui OD, Novack V, Piazza G, Goldhaber SZ. Evaluation of a Device Combining an Inferior Vena Cava Filter and a Central Venous Catheter for Preventing Pulmonary Embolism Among Critically Ill Trauma Patients. J Vasc Interv Radiol 2017. [PMID: 28642012 DOI: 10.1016/j.jvir.2017.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
PURPOSE To evaluate efficacy and safety of a novel device that combines an inferior vena cava (IVC) filter and central venous catheter (CVC) for prevention of pulmonary embolism (PE) in critically ill patients. MATERIALS AND METHODS In a multicenter, prospective, single-arm clinical trial, the device was inserted at the bedside without fluoroscopy and subsequently retrieved before transfer from the intensive care unit (ICU). The primary efficacy endpoint was freedom from clinically significant PE or fatal PE 72 hours after device removal or discharge, whichever occurred first. Secondary endpoints were incidence of acute proximal deep venous thrombosis (DVT), catheter-related thrombosis, catheter-related bloodstream infections, major bleeding events, and clinically significant thrombus (occupying > 25% of volume of filter) detected by cavography before retrieval. RESULTS The device was placed in 163 critically ill patients with contraindications to anticoagulation; 151 (93%) were critically ill trauma patients, 129 (85%) had head or spine trauma, and 102 (79%) had intracranial bleeding. The primary efficacy endpoint was achieved for all 163 (100%) patients (95% confidence interval [CI], 97.8%-100%, P < .01). Diagnosis of new or worsening acute proximal DVT was time dependent with 11 (7%) occurring during the first 7 days. There were no (0%) catheter-related bloodstream infections. There were 5 (3.1%) major bleeding events. Significant thrombus in the IVC filter occurred in 14 (8.6%) patients. Prophylactic anticoagulation was not initiated for a mean of 5.5 days ± 4.3 after ICU admission. CONCLUSIONS This novel device prevented clinically significant and fatal PE among critically ill trauma patients with low risk of complications.
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Affiliation(s)
- Victor F Tapson
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
| | - Joshua P Hazelton
- Division of Trauma and Surgical Critical Care, Cooper University Hospital, Camden, New Jersey
| | - John Myers
- Division of Trauma and Emergency Surgery, Department of Surgery, University of Texas Health Science Center, San Antonio, Texas
| | - Claudia Robertson
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - Ramyar Gilani
- Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Julie A Dunn
- Department of Trauma Research and Education, University of Colorado Health North, Loveland, Colorado
| | - Marko Bukur
- Department of Surgery, Herbert Wertheim College of Medicine, Florida International University, Delray Beach and Fort Lauderdale, Florida; Division of Trauma, Emergency Surgery, and Surgical Critical Care, Bellevue Hospital Center, New York City, New York; Department of Surgery, New York University School of Medicine, New York City, New York
| | - Martin A Croce
- Departments of Surgery and Trauma and Surgical Critical Care, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Ann Peick
- Department of Trauma and Acute Care Surgery, Mercy Hospital, St. Louis, Missouri
| | - Sonlee West
- Department of Surgery, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Lawrence Lottenberg
- Department of Surgery, Trauma and Acute Care and Trauma Research and Education, St. Mary's Medical Center, West Palm Beach, Florida; Department of Surgery, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, Florida
| | - Jay Doucet
- Division of Trauma, Surgical Critical Care and Burns, Department of Clinical Surgery, University of California San Diego Health System, San Diego, California
| | - Preston R Miller
- Department of Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina
| | - Bruce Crookes
- Division of General Surgery, Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Rajesh R Gandhi
- Department of Surgery, Trauma, John Peter Smith Hospital, Fort Worth, Texas; Department of Surgery, University of North Texas, Fort Worth, Texas
| | - Chasen A Croft
- Division of Trauma and Acute Care Surgery, Department of Surgery, University of Florida Health Science Center, Gainesville, Florida
| | - Anthony Manasia
- Departments of Medicine and Surgery, Mount Sinai School of Medicine, New York City, New York
| | - Brian A Hoey
- Department of General Surgery, St. Luke's University Health Network, Bethlehem, Pennsylvania
| | - Howard Lieberman
- Division of Trauma and Surgical Critical Care, Department of Surgery, Ryder Trauma Center, Miami, Florida
| | - Oscar D Guillamondegui
- Division of Trauma, Acute Care Surgery and Surgical Critical Care, Department of Surgery, Vanderbilt University, Nashville, Tennessee
| | - Victor Novack
- Clinical Research Center, Soroka University Medical Center and Faculty of Health, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Gregory Piazza
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Samuel Z Goldhaber
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Thrombosis Research Group, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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Abstract
Hemorrhage is a major contributor to morbidity and mortality during the perioperative period. Current methods of diagnosing coagulopathy have various limitations including long laboratory runtimes, lack of information on specific abnormalities of the coagulation cascade, lack of in vivo applicability, and lack of ability to guide the transfusion of blood products. Viscoelastic testing offers a promising solution to many of these problems. The two most-studied systems, thromboelastography (TEG) and rotational thromboelastometry (ROTEM), offer similar graphical and numerical representations of the initiation, formation, and lysis of clot. In systematic reviews on the clinical efficacy of viscoelastic tests, the majority of trials analyzed were in cardiac surgery patients. Reviews of the literature suggest that transfusions of packed red blood cells (pRBC), plasma, and platelets are all decreased in patients whose transfusions were guided by viscoelastic tests rather than by clinical judgement or conventional laboratory tests. Mortality appears to be lower in the viscoelastic testing groups, despite no difference in surgical re-intervention rates and massive transfusion rates. Cost-effectiveness studies also seem to favor viscoelastic testing. Viscoelastic testing has also been investigated in small studies in other clinical contexts, such as sepsis, obstetric hemorrhage, inherited bleeding disorders, perioperative thromboembolism risk assessment, and management of anticoagulation for patients on mechanical circulatory support systems or direct oral anticoagulants (DOACs). While the results are intriguing, no systematic, larger trials have taken place to date. Viscoelastic testing remains a relatively novel method to assess coagulation status, and evidence for its use appears favorable in reducing blood product transfusions, especially in cardiac surgery patients.
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Affiliation(s)
- Liang Shen
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Sheida Tabaie
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Natalia Ivascu
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
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Abstract
Coagulopathy is common after injury and develops independently from iatrogenic, hypothermic, and dilutional causes. Despite considerable research on the topic over the past decade, trauma-induced coagulopathy (TIC) continues to portend poor outcomes, including decreased survival. We review the current evidence regarding the diagnosis and mechanisms underlying trauma induced coagulopathy and summarize the debates regarding optimal management strategy including product resuscitation, potential pharmacologic adjuncts, and targeted approaches to hemostasis. Throughout, we will identify areas of continued investigation and controversy in the understanding and management of TIC.
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McCully BH, Connelly CR, Fair KA, Holcomb JB, Fox EE, Wade CE, Bulger EM, Schreiber MA. Onset of Coagulation Function Recovery Is Delayed in Severely Injured Trauma Patients with Venous Thromboembolism. J Am Coll Surg 2017; 225:42-51. [PMID: 28315812 DOI: 10.1016/j.jamcollsurg.2017.03.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/06/2017] [Accepted: 03/06/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Altered coagulation function after trauma can contribute to development of venous thromboembolism (VTE). Severe trauma impairs coagulation function, but the trajectory for recovery is not known. We hypothesized that enhanced, early recovery of coagulation function increases VTE risk in severely injured trauma patients. STUDY DESIGN Secondary analysis was performed on data from the Pragmatic Randomized Optimal Platelet and Plasma Ratio (PROPPR) trial, excluding patients who died within 24 hours or were on pre-injury anticoagulants. Patient characteristics, adverse outcomes, and parameters of platelet function and coagulation (thromboelastography) were compared from admission to 72 hours between VTE (n = 83) and non-VTE (n = 475) patients. A p value < 0.05 indicates significance. RESULTS Despite similar patient demographics, VTE patients exhibited hypercoagulable thromboelastography parameters and enhanced platelet function at admission (p < 0.05). Both groups exhibited hypocoagulable thromboelastography parameters, platelet dysfunction, and suppressed clot lysis (low clot lysis at 30 minutes) 2 hours after admission (p < 0.05). The VTE patients exhibited delayed coagulation recovery (a significant change compared with 2 hours) of K-value (48 vs 24 hours), α-angle (no recovery), maximum amplitude (24 vs 12 hours), and clot lysis at 30 minutes (48 vs 12 hours). Platelet function recovery mediated by arachidonic acid (72 vs 4 hours), ADP (72 vs 12 hours), and collagen (48 vs 12 hours) was delayed in VTE patients. The VTE patients had lower mortality (4% vs 13%; p < 0.05), but fewer hospital-free days (0 days [interquartile range 0 to 8 days] vs 10 days [interquartile range 0 to 20 days]; p < 0.05) and higher complication rates (p < 0.05). CONCLUSIONS Recovery from platelet dysfunction and coagulopathy after severe trauma were delayed in VTE patients. Suppressed clot lysis and compensatory mechanisms associated with altered coagulation that can potentiate VTE formation require additional investigation.
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Affiliation(s)
- Belinda H McCully
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR.
| | - Christopher R Connelly
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR
| | - Kelly A Fair
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR
| | - John B Holcomb
- Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, University of Texas Health Science Center, Houston, TX
| | - Erin E Fox
- Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, University of Texas Health Science Center, Houston, TX
| | - Charles E Wade
- Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, University of Texas Health Science Center, Houston, TX
| | - Eileen M Bulger
- Division of Trauma and Critical Care, Department of Surgery, University of Washington, Seattle, WA
| | - Martin A Schreiber
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR
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Nishida T, Kinoshita T, Yamakawa K. Tranexamic acid and trauma-induced coagulopathy. J Intensive Care 2017; 5:5. [PMID: 28729903 PMCID: PMC5517948 DOI: 10.1186/s40560-016-0201-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 12/17/2016] [Indexed: 02/07/2023] Open
Abstract
Tranexamic acid (TXA) is a synthetic derivative of the amino acid lysine that inhibits fibrinolysis by blocking the interaction of plasminogen with the lysine residues of fibrin. Historically, TXA is commonly used for reduction of blood loss in perioperative situations, while recently it has attracted attention for clinical use in the trauma field. In 2010, the Clinical Randomization of an Antifibrinolytic in Significant Hemorrhage 2 (CRASH-2) trial demonstrated that intravenous administration of TXA improved mortality significantly in trauma patients with significant bleeding. After the launch of its sensational results, the main stream treatment protocol in trauma changed worldwide to include TXA administration. In this review, first we summarize the recent evidence or recommendations in the related guidelines concerning TXA. Also, we next tried to explore in detail not only the benefits but also the harm introduced by TXA in trauma patients, because the main adverse event results for TXA, such as vascular occlusive events in the CRASH-2 trial, are still being discussed in several papers. Thus, we briefly summarized the evidence for the safety of TXA administration by a systematic review method using observational studies. Consequently, the pooled relative risk for venous thromboembolisms was 1.61 (95% CI, 0.86–3.01), indicating a non-significant increase in the venous thromboembolism risk of TXA therapy. Regarding the basic mechanism, TXA potentially possesses the risk of venous thromboembolisms, so it should be used cautiously and selectively. Further investigation is needed to delineate the optimal targeted trauma patients to earn the maximum survival benefits with minimized risk of thrombotic complications.
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Affiliation(s)
- Takeshi Nishida
- Division of Trauma and Surgical Critical Care, Osaka General Medical Center, 3-1-56 Bandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558 Japan
| | - Takahiro Kinoshita
- Division of Trauma and Surgical Critical Care, Osaka General Medical Center, 3-1-56 Bandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558 Japan
| | - Kazuma Yamakawa
- Division of Trauma and Surgical Critical Care, Osaka General Medical Center, 3-1-56 Bandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558 Japan
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Meizoso JP, Karcutskie CA, Ray JJ, Namias N, Schulman CI, Proctor KG. Persistent Fibrinolysis Shutdown Is Associated with Increased Mortality in Severely Injured Trauma Patients. J Am Coll Surg 2016; 224:575-582. [PMID: 28017804 DOI: 10.1016/j.jamcollsurg.2016.12.018] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 12/07/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Acute fibrinolysis shutdown is associated with early mortality after trauma; however, no previous studies have investigated the incidence of persistent fibrinolysis or its association with mortality. We tested the hypothesis that persistent fibrinolysis shutdown is associated with mortality in critically ill trauma patients. STUDY DESIGN Thromboelastography was performed on ICU admission in 181 adult trauma patients and at 1 week in a subset of 78 patients. Fibrinolysis shutdown was defined as LY30 ≤ 0.8% and was considered transient if resolved by 1 week postinjury or persistent if not. Logistic regression adjusted for age, sex, hemodynamics, and Injury Severity Score (ISS). RESULTS Median age was 52 years, 88% were male, and median ISS was 27, with 56% transient fibrinolysis shutdown, 44% persistent fibrinolysis shutdown and 12% mortality. Median LY30 was 0.23% (interquartile range [IQR] 0% to 1.20%) at admission and 0.10% (IQR 0% to 2.05%) at 1 week. Transient shutdown more often occurred after head injury (p = 0.019); persistent shutdown was more often associated with penetrating injury (29% vs 9%; p = 0.020), lower LY30 at ICU admission (0.10% vs 1.15%; p < 0.0001) and at 1 week (0% vs 1.68%; p < 0.0001), and higher mortality (21% vs 5%; p = 0.036). Persistent fibrinolysis shutdown was associated with admission LY30 (odds ratio [OR] 0.05; 95% CI 0.01 to 0.34; p = 0.002) and transfusion of packed RBCs (OR 0.81; 95% CI 0.68 to 0.97; p = 0.021) and platelets (OR 2.81; 95% CI 1.16 to 6.84; p = 0.022); moreover, it was an independent predictor of mortality (OR 8.48; 95% CI 1.35 to 53.18; p = 0.022). CONCLUSIONS Persistent fibrinolysis shutdown is associated with late mortality after trauma. A high index of suspicion should be maintained, especially in patients with penetrating injury, reduced LY30 on admission, and/or receiving blood product transfusion. Judicious use of tranexamic acid is advised in this cohort.
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Affiliation(s)
- Jonathan P Meizoso
- Ryder Trauma Center, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Charles A Karcutskie
- Ryder Trauma Center, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Juliet J Ray
- Ryder Trauma Center, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Nicholas Namias
- Ryder Trauma Center, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Carl I Schulman
- Ryder Trauma Center, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Kenneth G Proctor
- Ryder Trauma Center, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL.
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Thromboelastographic predictors of venous thromboembolic events in critically ill patients. Blood Coagul Fibrinolysis 2016; 27:804-811. [DOI: 10.1097/mbc.0000000000000503] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Wade CE, Baer LA, Cardenas JC, Folkerson LE, Nutall-Aurora K, Cotton BA, Matijevic N, Holcomb JB, Cross JM, Huzar T. Upon admission coagulation and platelet function in patients with thermal and electrical injuries. Burns 2016; 42:1704-1711. [PMID: 27692780 DOI: 10.1016/j.burns.2016.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/14/2016] [Accepted: 05/02/2016] [Indexed: 11/19/2022]
Abstract
RATIONAL There has been increased focus on hemostatic potential and function in the initial assessment of the patient with traumatic injuries, that not been extensively studied in patients with burns. We proposed to determine the hemostatic potential of patients with burns upon admission to the emergency department and contrasted their condition with that of healthy controls and patients with other traumatic injuries. In addition we assessed differences due to thermal versus electrical injury and evaluated the effect of burn size. METHODS This is a patient based prospective observational study conducted with delayed consented. Subjects at the highest level of trauma activation upon admission to the ED had a blood sample collected for research purposes and were subsequently consented. Hemostatic potential was measured by rapid thromelastography (r-TEG®), thrombin generation by calibrated automated thrombogram (CAT) and platelet function by Multiplate® using five activators. Burn subjects were compared to subjects with other traumatic injuries and controls. Within the burn subjects additional analysis compared mechanism (thermal vs. electrical) and burn size. Values are medians (IQR). RESULTS Two hundred and eighty two trauma patients (with burns n=40, 14%) and 27 controls were enrolled. Upon admission, compared to controls, subjects with burns or trauma were hyper-coagulable based on r-TEG and CAT, with increased rates of clot formation and thrombin generation. There were no differences in burns compared to other traumatic injuries. The presence of hyper-coagulation did not appear to be related to the type of burn or the percentage of total body surface area involved. Employing previous defined cut points for R-TEG driven therapeutic interventions burn patients had similar rates of hyper- and hypo-coagulation noted in patients with traumatic injuries. CONCLUSION Upon admission patients with burns are in a hyper-coagulable state similar to that of other trauma patients. Employing demonstrated cut points of hemostatic potential in trauma patients associated with increased risk of poor outcomes demonstrated the incidence in burn patients to be similar, suggesting that these values could be used in the early assessment of the patient with burns to guide treatment interventions.
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Affiliation(s)
- Charles E Wade
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States.
| | - Lisa A Baer
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - Jessica C Cardenas
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - Lindley E Folkerson
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - Kisha Nutall-Aurora
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - Bryan A Cotton
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - Nena Matijevic
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - John B Holcomb
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - James M Cross
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
| | - Todd Huzar
- Center for Translational Injury Research and Department of Surgery, University of Texas Health Science Center at Houston, United States
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Jeffery U, Staber J, LeVine D. Using the laboratory to predict thrombosis in dogs: An achievable goal? Vet J 2016; 215:10-20. [DOI: 10.1016/j.tvjl.2016.03.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 01/09/2023]
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A simplified stratification system for venous thromboembolism risk in severely injured trauma patients. J Surg Res 2016; 207:138-144. [PMID: 27979470 DOI: 10.1016/j.jss.2016.08.072] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/01/2016] [Accepted: 08/24/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND The objective of this study was to re-evaluate and simplify the Greenfield risk assessment profile (RAP) for venous thromboembolism (VTE) in trauma using information readily available at the bedside. METHODS Retrospective review of 1233 consecutive admissions to the trauma intensive care unit from August 2011-January 2015. Univariate analyses were performed to determine which RAP risk factors were significant contributors to VTE. Multivariable logistic regression was used to develop models for risk stratification. All results were considered statistically significant at P ≤ 0.05. RESULTS The study population was as follows: age 44 ± 19, 75% male, 72% blunt, injury severity score 21 ± 13, RAP score 9 ± 5, and 8% mortality. Groups were separated into +VTE (n = 104) and -VTE (n = 1129). They were similar in age, gender, mechanism, and mortality, but injury severity and RAP scores were higher in the +VTE group (all P < 0.0001). The +VTE group had more transfusions and longer time to prophylaxis (all P < 0.05). Receiving four or more transfusions in the first 24 h (odds ratio [OR], 2.60; 95% confidence interval [CI], 1.64-4.13), Glasgow coma score <8 for >4 h (OR, 2.13; 95% CI, 1.28-3.54), pelvic fracture (OR, 2.26; 95% CI, 1.44-3.57), age 40-59 y (OR, 1.70; 95% CI, 1.10-2.63), and >2-h operation (OR, 1.80; 95% CI, 1.14-2.85) predicted VTE with an area under the receiver operator curve of 0.729, which was comparable with 0.740 for the RAP score alone. CONCLUSIONS VTE risk in trauma can be easily assessed using only five risk factors, which are all readily available at the bedside (transfusion, Glasgow coma scale, pelvic fracture, prolonged operation, and age). This simplified model provides similar predictive ability to the more complicated RAP score. Prospective validation of a simplified risk assessment score is warranted.
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Aspirin as added prophylaxis for deep vein thrombosis in trauma: A retrospective case-control study. J Trauma Acute Care Surg 2016; 80:625-30. [PMID: 26808030 DOI: 10.1097/ta.0000000000000977] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Current prophylaxis does not completely prevent deep vein thrombosis (DVT) in trauma patients. Recent data suggest that platelets may be a major contributor to hypercoagulability after trauma, indicating a potential role for antiplatelet medications in prophylaxis for DVT. We sought to determine if preinjury aspirin use was associated with a reduced incidence of lower extremity DVT in trauma patients. METHODS Using a retrospective case-control design, we matched 110 cases of posttrauma lower extremity DVT one-to-one with controls using seven covariates: age, admission date, probability of death, number of DVT risk factors, sex, mechanism of injury, and presence of head injury. Data collected included 26 risk factors for DVT, prehospital medications, and in-hospital prophylaxis. Logistic regression models were created to examine the relationship between prehospital aspirin use and posttrauma DVT. RESULTS Preinjury aspirin was used by 7.3% of cases (patients diagnosed with in-hospital DVT) compared with 13.6% of controls (p = 0.1). Aspirin was associated with a significant protective effect in multivariate analysis, with an odds ratio of 0.17 (95% confidence interval, 0.04-0.68; p = 0.012) in the most complete model. When stratified by other antithrombotic use, aspirin showed a significant effect only when used in combination with heparinoid prophylaxis (odds ratio, 0.35; 95% confidence interval, 0.13-0.93; p = 0.036). CONCLUSION Preinjury aspirin use seems to significantly lower DVT rate following injury. This association is strongest when heparinoid prophylaxis is prescribed after patients on preinjury aspirin therapy are admitted. Aspirin as added prophylaxis for DVT in trauma patients needs to be further evaluated. LEVEL OF EVIDENCE Prognostic and epidemiologic study, level III.
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Sharfman ZT, Campbell JC, Mirocha JM, Spitzer AI. Balancing Thromboprophylaxis and Bleeding in Total Joint Arthroplasty: Impact of Eliminating Enoxaparin and Predonation and Implementing Pneumatic Compression and Tranexamic Acid. J Arthroplasty 2016; 31:1307-1312. [PMID: 26781392 DOI: 10.1016/j.arth.2015.11.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/22/2015] [Accepted: 11/30/2015] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Venous thromboembolic disease (VTED) after total hip arthroplasty (THA) and total knee arthroplasty (TKA) poses substantial risk. Pharmacologic prophylaxis against VTED can cause bleeding, transfusion, and associated complications. The ActiveCare+SFT is a portable, intermittent pneumatic compression device (IPCD), providing equivalent VTED prophylaxis to pharmacologic agents without associated bleeding. Tranexamic acid (TXA) is an antifibrinolytic that reduces blood loss after THA and TKA. Our objective was to measure blood transfusion and VTED after eliminating enoxaparin, introducing an IPCD, eliminating autologous blood transfusion, and administering TXA during primary TKA and THA. METHODS Four consecutive cohorts of THA and TKA patients were studied. Group A, the historical control, received enoxaparin VTED prophylaxis. Group B received IPCD VTED prophylaxis. Group C received IPCD VTED prophylaxis along with TXA (1 g intravenous at incision and closure). Groups A, B, and C predonated 1 unit of autologous blood. Group D received IPCD VTED prophylaxis, TXA as above, but did not donate blood preoperatively. RESULTS Seventeen of 50 patients (34%) in Group A, 7 of 47 (14.9%) patients in Group B, 4 of 43 (9.3%) patients in Group C, and 0 of 46 patients in Group D received transfusions. There were no major symptomatic VTED events. CONCLUSION Using an IPCD and TXA and discontinuing enoxaparin and preoperative autologous blood donation eliminated blood transfusion in primary THA and TKA without any increase in VTED. Using an IPCD instead of enoxaparin, adding TXA, and eliminating preoperative autologous donation each had an incremental dose response effect. This protocol provides effective VTED prophylaxis equivalent to pharmacologic methods and eliminates transfusion risk in the primary THA and TKA population.
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Affiliation(s)
- Zachary T Sharfman
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Joshua C Campbell
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - James M Mirocha
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Andrew I Spitzer
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
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50
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Hans GA, Besser MW. The place of viscoelastic testing in clinical practice. Br J Haematol 2016; 173:37-48. [DOI: 10.1111/bjh.13930] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Gregory A. Hans
- Department of Anaesthesia and Intensive Care Medicine; CHU of Liege; Liege Belgium
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