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Dobson GP, Morris JL, Letson HL. Traumatic brain injury: Symptoms to systems in the 21st century. Brain Res 2024; 1845:149271. [PMID: 39395646 DOI: 10.1016/j.brainres.2024.149271] [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: 10/01/2024] [Accepted: 10/07/2024] [Indexed: 10/14/2024]
Abstract
Severe traumatic brain injury (TBI) is a devastating injury with a mortality of ∼ 25-30 %. Despite decades of high-quality research, no drug therapy has reduced mortality. Why is this so? We argue two contributing factors for the lack of effective drug therapies include the use of specific-pathogen free (SPF) animals for translational research and the flawed practice of single-nodal targeting for drug design. A revolution is required to better understand how the whole body responds to TBI, identify new markers of its progression, and discover new system-acting drugs to treat it. In this review, we present a brief history of TBI, discuss its system's pathophysiology and propose a new research strategy for the 21st century. TBI progression develops from injury signals radiating from the primary impact, which can cause local ischemia, hemorrhage, excitotoxicity, cellular depolarization, immune dysfunction, sympathetic hyperactivity, blood-brain barrier breach, coagulopathy and whole-body dysfunction. Metabolic reprograming of immune cells drives neuroinflammation and secondary injury processes. We propose if sympathetic hyperactivity and immune cell activation can be corrected early, cardiovascular function and endothelial-glycocalyx-mitochondrial coupling can be restored, and secondary injury minimized with improved patient outcomes. The therapeutic goal is to switch the injury phenotype to a healing phenotype by restoring homeostasis and maintaining sufficient tissue O2 delivery. We have been developing a small-volume fluid therapy comprising adenosine, lidocaine and magnesium (ALM) to treat TBI and have shown that it blunts the CNS-stress response, supports cardiovascular function and reduces secondary injury. Future research will investigate its suitability for human translation.
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Affiliation(s)
- Geoffrey P Dobson
- Heart, Sepsis and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland 4811, Australia.
| | - Jodie L Morris
- Heart, Sepsis and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland 4811, Australia.
| | - Hayley L Letson
- Heart, Sepsis and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland 4811, Australia.
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Dobson GP, Morris JL, Letson HL. Pathophysiology of Severe Burn Injuries: New Therapeutic Opportunities From a Systems Perspective. J Burn Care Res 2024; 45:1041-1050. [PMID: 38517382 PMCID: PMC11303127 DOI: 10.1093/jbcr/irae049] [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] [Received: 11/30/2023] [Indexed: 03/23/2024]
Abstract
Severe burn injury elicits a profound stress response with the potential for high morbidity and mortality. If polytrauma is present, patient outcomes appear to be worse. Sex-based comparisons indicate females have worse outcomes than males. There are few effective drug therapies to treat burn shock and secondary injury progression. The lack of effective drugs appears to arise from the current treat-as-you-go approach rather than a more integrated systems approach. In this review, we present a brief history of burns research and discuss its pathophysiology from a systems' perspective. The severe burn injury phenotype appears to develop from a rapid and relentless barrage of damage-associated molecular patterns, pathogen-associated molecular patterns, and neural afferent signals, which leads to a state of hyperinflammation, immune dysfunction, coagulopathy, hypermetabolism, and intense pain. We propose that if the central nervous system control of cardiovascular function and endothelial-glycocalyx-mitochondrial coupling can be restored early, these secondary injury processes may be minimized. The therapeutic goal is to switch the injury phenotype to a healing phenotype by reducing fluid leak and maintaining tissue O2 perfusion. Currently, no systems-based therapies exist to treat severe burns. We have been developing a small-volume fluid therapy comprising adenosine, lidocaine, and magnesium (ALM) to treat hemorrhagic shock, traumatic brain injury, and sepsis. Our early studies indicate that the ALM therapy holds some promise in supporting cardiovascular and pulmonary functions following severe burns. Future research will investigate the ability of ALM therapy to treat severe burns with polytrauma and sex disparities, and potential translation to humans.
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Affiliation(s)
- Geoffrey P Dobson
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, QLD 4811, Australia
| | - Jodie L Morris
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, QLD 4811, Australia
| | - Hayley L Letson
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, QLD 4811, Australia
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Koami H, Sakamoto Y, Matsuoka A, Shinada K. Thromboelastometric Analysis of the Correlation Between Burn-Induced Coagulopathy and Severity of Burn Injury. Cureus 2024; 16:e54489. [PMID: 38516476 PMCID: PMC10955108 DOI: 10.7759/cureus.54489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2024] [Indexed: 03/23/2024] Open
Abstract
Background In this study, we aimed to analyze the association between the burn index (BI) and burn-induced coagulopathy. Methods Adult burn patients transported to our emergency department who underwent rotational thromboelastometry (ROTEM) between April 1, 2013, and December 31, 2021, were enrolled in this study. The patients were categorized into two groups based on burn severity. Severe burns were defined as BI scores of > 15. Patient demographics, clinical variables of burns, standard laboratory test data, ROTEM data, and clinical outcomes of both groups were evaluated. In addition, the correlation between severe burns and significant variables was evaluated using a univariate analysis. Results Seven patients were enrolled and categorized into the severe (n = 2) and control (n = 5) groups. The severe group had a significantly worse consciousness level and higher mortality rate and showed higher tendencies of burn severity and clinical severity scores. Disseminated intravascular coagulation was confirmed in one patient. All ROTEM variables in the severe group regarding clot firmness in the extrinsic coagulation cascade (EXTEM) and fibrinogen-specific coagulation cascade (FIBTEM) showed a decreasing tendency as compared to those in the control group. Moreover, correlation analyses revealed strong correlations between the BI and clot firmness (rho = -0.946 to -0.721). Conclusions Severe BI was strongly associated with decreased blood clot firmness in EXTEM, FIBTEM, and ROTEM. Future research using viscoelastic devices may provide new possibilities for the treatment of severe burns.
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Affiliation(s)
- Hiroyuki Koami
- Department of Emergency and Critical Care Medicine, Saga University, Saga, JPN
| | - Yuichiro Sakamoto
- Department of Emergency and Critical Care Medicine, Saga University, Saga, JPN
| | - Ayaka Matsuoka
- Department of Emergency and Critical Care Medicine, Saga University Hospital, Saga, JPN
| | - Kota Shinada
- Department of Emergency and Critical Care Medicine, Saga University, Saga, JPN
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Jian F, Lu C, Jia H, Na L, Peng Y, Maohong B, Xulin C. Characteristics of blood clotting on thromboelastography in patients with early burns. Transfus Apher Sci 2023; 62:103824. [PMID: 37813753 DOI: 10.1016/j.transci.2023.103824] [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: 02/11/2023] [Revised: 09/12/2023] [Accepted: 09/22/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Thromboelastography (TEG) is a viscoelastic test that may be used to evaluate the hemostatic function of whole blood, and it may be useful for burn patients with multiple hemostatic defects. METHODS We retrospectively recruited patients with burns between January 2019 and July 2021. Blood samples were drawn on admission and subjected to coagulation parameter assessment, including conventional coagulation tests and TEG assessment. Receiver operating characteristic (ROC) analysis was performed to predict the occurrence of complications in patients with early burns. RESULTS Ninety-three patients with early burns met the inclusion criteria. Patients with minor, moderate, severe, and extremely severe burns accounted for 19.4 %, 36.6 %, 16.1 %, and 27.9 % of all patients, respectively. Compared with the healthy controls, patients with early burns showed significant reductions in the R and K values, and significant elevation in the maximum amplitude (MA), coagulation index (CI), and alpha angle. Compared with minor and moderate burn patients, patients with severe and extremely severe burns had lower K values and thrombin time and higher alpha angle, CI, prothrombin time, international normalized ratio, D-dimer, and fibrin degradation products. Patients with hypercoagulation had lower R and K values, longer MA, longer CI, and greater alpha angle. After ROC analysis, the areas under the ROC curve for acute lung injury, acute kidney injury, and bleeding were 0.789, 0.802, and 0.900, respectively. CONCLUSION TEG provides insight into the hemostatic state of patients with early burns, and can predict complications in early burn patients when combined with conventional coagulation tests.
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Affiliation(s)
- Fang Jian
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Chen Lu
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - He Jia
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Li Na
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Yang Peng
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Bian Maohong
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China.
| | - Chen Xulin
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China.
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Guilabert P, Martin N, Usúa G, Vendrell M, Colomina MJ, Barret JP. Coagulation Alterations in Major Burn Patients: A Narrative Review. J Burn Care Res 2023; 44:280-292. [PMID: 36444638 DOI: 10.1093/jbcr/irac177] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Indexed: 11/30/2022]
Abstract
Major burn patients (MBP) can present multifactorial coagulation alterations induced by trauma and endothelial damage, fluid replacement therapy, hypothermia, hypoperfusion, acidosis, and activation of the inflammatory cascade. However, the multiple coagulation alterations that occur are still poorly defined. The aim of this review is to combine the results of the different coagulation tests currently used to study coagulation changes in these patients. The PubMed database was searched for articles reporting factor levels or coagulation tests using the keywords "Burns" and "Blood Coagulation". Of the 720 articles retrieved from the search, 20 were finally included in the review. Coagulopathy in the MBP differs from that of the trauma patient, insofar as the former present with an increase in factors VIII, IX, and vW on admission accompanied by an increase in fibrin and thrombin production. This is followed by activation of fibrinolysis and prolonged prothrombin (PT) and thromboplastin (aPTT) times in the first 24 hours, increased fibrinogen after 48 hours, and thrombocytosis between the second and third week. Viscoelastic testing shows a pattern that shifts from normal coagulation to a hypercoagulable state with no evidence of hyperfibrinolysis. Alterations in PT and aPTT together with elevated Factor VIII have been associated with mortality, while normalization of antithrombin, and protein C and S levels are associated with a good prognosis. Although standard coagulation tests initially show alterations, the MBP does not appear to be hypocoagulable, and viscoelastic testing shows a trend toward hypercoagulability over time. Coagulation disorders affect prognosis in the MBP.
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Affiliation(s)
- Patricia Guilabert
- Anesthesia and Critical Care Department, University Hospital Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain
| | - Nuria Martin
- Anesthesia and Critical Care Department, Hospital Clinic Barcelona, Barcelona, Spain
| | - Gemma Usúa
- Anesthesia and Critical Care Department, University Hospital Vall d'Hebron, Barcelona, Spain
| | - Marina Vendrell
- Anesthesia and Critical Care Department, Hospital Clinic Barcelona, Barcelona, Spain
| | - Maria J Colomina
- Anesthesia and Critical Care Department, University Bellvitge Hospital, University of Barcelona, Barcelona, Spain
| | - Juan P Barret
- Plastic Surgery Department and Burn Centre, University Hospital Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain
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Souto J, Rodrigues AG. Reducing Blood Loss in a Burn Care Unit: A Review of Its Key Determinants. J Burn Care Res 2023; 44:459-466. [PMID: 36106386 DOI: 10.1093/jbcr/irac114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Patients with a major burn injury differ considerably from the typical critical ill and trauma population. Very often, burn patients suffer from anemia throughout their hospital stay. This is caused both by combination of persistent blood loss with decreased erythropoiesis. Therefore, burn patients do have major transfusion requirements. However, transfusion is not devoid of risks or costs. We hereby review the best surgical techniques and medical approaches, aiming to reduce blood loss in a burn patient and optimize red cell production, so that we can reduce the need of RBC transfusion. The implementation of a combination of surgical techniques aiming to reduce blood loss and medical care approaches to prevent anemia, rather than single attitudes, should be adopted in burn care. There is an urgent need for clear guidelines that can easily be accepted, applied, and spread across different burn units to methodically implement measures to reduce blood loss and transfusion needs, and ultimately improve burn patients' outcome and the health care financial status.
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Affiliation(s)
- João Souto
- Faculty of Medicine, University of Porto, Portugal
| | - Acacio Goncalves Rodrigues
- Burn Unit and Department of Plastic and Reconstructive Surgery, Faculty of Medicine, S. João University Hospital Center, Porto, Portugal.,CINTESIS@RISE, Faculty of Medicine, University of Porto, Portugal
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McDonough MM, Keyloun J, Orfeo T, Brummel-Zeidins K, Bynum JA, Wu X, Darlington DN, Shupp JW, Burmeister DM. A Natural History Study of Coagulopathy in a Porcine 40% Total Body Surface Area Burn Model Reveals the Time-Dependent Significance of Functional Assays. Burns 2022; 48:1805-1815. [DOI: 10.1016/j.burns.2022.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/29/2022] [Accepted: 08/24/2022] [Indexed: 11/28/2022]
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Abstract
Burn-induced coagulopathy is not well understood, and consensus on diagnosis, prevention, and treatments are lacking. In this review, literature on burn-induced (and associated) coagulopathy is presented along with the current understanding of the effects of burn injury on the interactions among coagulation, fibrinolysis, and inflammation in the acute resuscitative phase and reconstructive phase of care. The role of conventional tests of coagulopathy and functional assays like thromboelastography or thromboelastometry will also be discussed. Finally, reported methods for the prevention and treatment of complications related to burn-induced coagulopathy will be reviewed.
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Marsden NJ, Van M, Dean S, Azzopardi EA, Hemington-Gorse S, Evans PA, Whitaker IS. Measuring coagulation in burns: an evidence-based systematic review. Scars Burn Heal 2017; 3:2059513117728201. [PMID: 29799542 PMCID: PMC5965330 DOI: 10.1177/2059513117728201] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Introduction Dynamic monitoring of coagulation is important to predict both haemorrhagic and thrombotic complications and to guide blood product administration. Reducing blood loss and tailoring blood product administration may improve patient outcome and reduce mortality associated with transfusion. The current literature lacks a systematic, critical appraisal of current best evidence on which clinical decisions may be based. Objectives Establishing the role of different coagulation markers in burn patients, diagnosing coagulopathy, tailoring blood product administration and indicating prognosis. Methods Literature during 2004-2017 from the Cochrane Library, PubMed, Scopus, Medline and Embase was reviewed. Eligibility criteria included randomised controlled trials, systematic reviews, multi-/single-centre study and meta-analyses. Keywords searched were 'burns', 'blood coagulation disorders', 'rotem', 'blood coagulation' and 'thromboelastography'. The PRISMA flow system was used for stratification and the CASP framework for appraisal of the studies retrieved. Results In total, 13 articles were included after inclusion/exclusion criteria had been applied to the initial 79 studies retrieved. Hypercoagulation increases in proportion to the severity of thermal injury. Whole blood testing, using thrombelastography (TEG) and rotation thromboelastometry (ROTEM), was superior to standard plasma based tests, including prothrombin time (PT) and activated partial thromboplastin time (APTT) at detecting burn-related coagulopathies. Conclusions Routine laboratory markers such as PT/APTT are poor indicators of coagulation status in burns patients. Viscoelastic tests, such as TEG and ROTEM, are efficient, fast and have a potential use in the management of burn patients; however, strong evidence is lacking. This review highlights the need for more randomised controlled trials, to guide future practice.
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Affiliation(s)
- Nicholas J Marsden
- NISCHR Haemostasis Biomedical Research Unit, Morriston Hospital, Swansea, UK.,Welsh Centre for Burns and Plastic Surgery, Swansea, UK
| | - Martin Van
- Welsh Centre for Burns and Plastic Surgery, Swansea, UK
| | - Samera Dean
- Welsh Centre for Burns and Plastic Surgery, Swansea, UK
| | - Ernest A Azzopardi
- Welsh Centre for Burns and Plastic Surgery, Swansea, UK.,Reconstructive Surgery and Regenerative Medicine Group, Institute of Life Science, College of Medicine, Swansea University, Wales, UK
| | | | - Phillip A Evans
- NISCHR Haemostasis Biomedical Research Unit, Morriston Hospital, Swansea, UK.,Reconstructive Surgery and Regenerative Medicine Group, Institute of Life Science, College of Medicine, Swansea University, Wales, UK
| | - Iain S Whitaker
- Welsh Centre for Burns and Plastic Surgery, Swansea, UK.,Reconstructive Surgery and Regenerative Medicine Group, Institute of Life Science, College of Medicine, Swansea University, Wales, UK
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Platelet and coagulation function before and after burn and smoke inhalation injury in sheep. J Trauma Acute Care Surg 2017; 83:S59-S65. [PMID: 28452873 DOI: 10.1097/ta.0000000000001472] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Smoke inhalation and burn injury remain a major source of morbidity and mortality. There is known dysregulation of hemostasis in burn patients, but either hypercoagulation or hypocoagulation states are reported. Sheep are an established animal model for studying burn pathology and provide robust data on hemostatic function at baseline and after injury. METHODS After an IACUC-approved protocol, 15 sheep were anesthetized and subjected to a 40% full thickness burn with smoke inhalation. Blood was sampled at baseline, 1 day postinjury (early effects) and days 2, 3, and 4 (late effects) after injury. Assays at each timepoint assessed: hemostatic function by thromboelastography (TEG), platelet counts and function by flow cytometry and aggregometry, coagulation protein levels, and free hemoglobin. Data were analyzed by the Wilcoxon paired test (nonparametric) with significance set at less than 0.05. RESULTS By 24 hours postinjury, platelet counts had dropped, whereas the percent activated platelets increased. Absolute platelet functional response to the agonist adenosine diphosphate (ADP) decreased, whereas response to collagen showed no significant difference. On a per platelet basis, ADP response was unchanged, whereas the collagen response was elevated. Prothrombin time and activated partial thromboplastin time were prolonged. TEG parameters decreased significantly from baseline. Fibrinogen and factor V were trending up; coagulation proteins ATIII, factors IX and X were decreased.Late effects were followed in six animals. At day 4, platelet counts remained depressed compared with baseline with a nadir at day 2; responses to agonist on a per platelet basis remained the same for ADP and stayed elevated for collagen. Platelets continued to have elevated activation levels. Fibrinogen and factor V remained significantly elevated, whereas TEG parameters and prothrombin time, factors IX and X returned to near baseline levels. CONCLUSION Coagulation parameters and hemostasis are dysregulated in sheep after smoke inhalation and burn. By 24 hours, sheep were hypocoagulable and subsequently became hypercoagulable by day 4. These results suggest a three-stage coagulopathy in burn injuries with a known early consumptive hypercoagulable state which is followed by a relatively hypocoagulable state with increased bleeding risk and then a return to a relatively unknown hypercoagulability with increased susceptibility to thrombotic disorders.
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11
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Impact of Platelets and Platelet-Derived Microparticles on Hypercoagulability Following Burn Injury. Shock 2016; 45:82-7. [PMID: 26529651 DOI: 10.1097/shk.0000000000000460] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An acute burn induced coagulopathy develops after scald injury, which evolves into a subacute, hypercoagulable state. Microparticles, specifically platelet-derived MPs (PMPs), have been suggested as possible contributors. We first developed a model of burn-induced coagulopathy and then sought to investigate the role of platelets and PMPs in coagulation after burn. We hypothesized that changes in circulating platelet and PMP populations after injury would contribute to the post-burn, hypercoagulable state. A murine scald model with 28% TBSA full thickness burn injury was utilized and blood samples were collected at intervals after injury. Circulating MP populations, platelet counts, overall coagulation, and platelet function were determined. Burn injury led to hypercoagulability on post-burn day one (PBD1), which persisted 6 days after injury (PBD6). On PBD1, there was a significant decrease in platelet numbers and a decline in platelet contribution to clot formation with a concomitant increase in circulating procoagulant PMPs. On PBD6, there was a significant increase in platelet numbers and in platelet activation with no change in PMPs compared with sham. Further, on PBD1 decreased ADP-induced platelet activation was observed with a contrasting increase in ADP-induced platelet activation on PBD6. We therefore concluded that there was a temporal change in the mechanisms leading to a hypercoagulable state after scald injury, that PMPs are responsible for changes seen on PBD1, and finally that ADP-induced platelet activation was key to the augmented clotting mechanisms 6 days after burn.
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Glas GJ, Levi M, Schultz MJ. Coagulopathy and its management in patients with severe burns. J Thromb Haemost 2016; 14:865-74. [PMID: 26854881 DOI: 10.1111/jth.13283] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 01/26/2016] [Indexed: 11/30/2022]
Abstract
Severe burn injury is associated with systemic coagulopathy. The changes in coagulation described in patients with severe burns resemble those found patients with sepsis or major trauma. Coagulopathy in patients with severe burns is characterized by procoagulant changes, and impaired fibrinolytic and natural anticoagulation systems. Both the timing of onset and the severity of hemostatic derangements are related to the severity of the burn. The exact pathophysiology and time course of coagulopathy are uncertain, but, at least in part, result from hemodilution and hypothermia. As the occurrence of coagulopathy in patients with severe burns is associated with increased comorbidity and mortality, coagulopathy could be seen as a potential therapeutic target. Clear guidelines for the treatment of coagulopathy in patients with severe burns are lacking, but supportive measures and targeted treatments have been proposed. Supportive measures are aimed at avoiding preventable triggers such as tissue hypoperfusion caused by shock, or hemodilution and hypothermia following the usually aggressive fluid resuscitation in these patients. Suggested targeted treatments that could benefit patients with severe burns include systemic treatment with anticoagulants, but sufficient randomized controlled trial evidence is lacking.
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Affiliation(s)
- G J Glas
- Laboratory of Experimental Intensive Care and Anesthesiology (L.E.I.C.A), Academic Medical Center, Amsterdam, the Netherlands
| | - M Levi
- Department of Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - M J Schultz
- Laboratory of Experimental Intensive Care and Anesthesiology (L.E.I.C.A), Academic Medical Center, Amsterdam, the Netherlands
- Department of Intensive Care, Academic Medical Center, Amsterdam, the Netherlands
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13
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Coagulopathy in burn patients: one part of a deadly trio. Burns 2015; 41:419-20. [PMID: 25681959 DOI: 10.1016/j.burns.2014.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 11/12/2014] [Indexed: 11/20/2022]
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Sherren P, Hussey J, Martin R, Kundishora T, Parker M, Emerson B. Acute burn induced coagulopathy. Burns 2013; 39:1157-61. [DOI: 10.1016/j.burns.2013.02.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 01/24/2013] [Accepted: 02/13/2013] [Indexed: 11/15/2022]
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Mitra B, Wasiak J, Cameron PA, O'Reilly G, Dobson H, Cleland H. Early coagulopathy of major burns. Injury 2013; 44:40-3. [PMID: 22677221 DOI: 10.1016/j.injury.2012.05.010] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Revised: 04/16/2012] [Accepted: 05/06/2012] [Indexed: 02/02/2023]
Abstract
INTRODUCTION AND AIMS The pathophysiology and time-course of coagulopathy post major burns are inadequately understood. The aims of this study were to review the incidence of acute coagulopathy post major burns, potential contributing factors associated with this coagulopathy and outcome of patients who developed early coagulopathy. METHODS A retrospective review of all patients with major burns (≥20% total body surface area (TBSA)) presenting to a tertiary burns referral centre was conducted. Data on demographic, injury characteristics and fluid resuscitation practices were recorded and tested for association with coagulopathy (INR>1.5 or aPTT>60 s) at hospital presentation and within 24 h of burns injury. Mortality, intensive care unit (ICU) admission, mechanical ventilation and blood and blood product usage were primary endpoints. RESULTS There were 99 patients who met the inclusion criteria with 36 (16) %TBSA burns. Coagulopathy was present in only three patients on presentation, but 37 (37%) patients developed early onset (within 24 h of injury) coagulopathy. Early onset coagulopathy was independently associated with %TBSA burnt (p<0.001) and volume of fluid administered (p=0.005). Early onset coagulopathy was associated with higher volumes of blood and blood product administration, ICU admission and prolonged mechanical ventilation. CONCLUSIONS Post major burns, a very low proportion of patients presented with coagulopathy, but a substantial proportion of patients developed coagulopathy within 24 h. This and the association of coagulopathy with the volume of fluid resuscitation suggest dilution as a major cause of the early coagulopathy of major burns.
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Affiliation(s)
- Biswadev Mitra
- Department of Epidemiology & Preventive Medicine, Monash University, Melbourne, VIC, Australia.
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Coban YK, Ozerol E, Tanber K, Erbatur S, Aytekin AH, Fırat C. The Hemeostatic Efficacy of ANKAFERD after Excision of Full Thickness Burns: A Comparative Experimental Study in Rats. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/ss.2011.21005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Nishijima DK, Zehtabchi S. The Efficacy of Recombinant Activated Factor VII in Severe Trauma. Ann Emerg Med 2009; 54:737-744.e1. [DOI: 10.1016/j.annemergmed.2009.01.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Revised: 01/22/2009] [Accepted: 01/26/2009] [Indexed: 10/21/2022]
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18
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Bühler R, Mattle HP. Hematological diseases and stroke. HANDBOOK OF CLINICAL NEUROLOGY 2009; 93:887-934. [PMID: 18804686 DOI: 10.1016/s0072-9752(08)93045-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Robert Bühler
- Department of Neurology, Iselspital, University of Bern, Bern, Switzerland
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Lavrentieva A, Kontakiotis T, Bitzani M, Papaioannou-Gaki G, Parlapani A, Thomareis O, Tsotsolis N, Giala MA. Early coagulation disorders after severe burn injury: impact on mortality. Intensive Care Med 2008; 34:700-6. [PMID: 18193192 DOI: 10.1007/s00134-007-0976-5] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2007] [Accepted: 11/30/2007] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To evaluate the time course of coagulation markers in the early postburn period and clarify the role of coagulation alterations in organ failure and in mortality prognosis. DESIGN AND SETTING This prospective study was conducted in the burn ICU of a tertiary hospital. PATIENTS 45 patients with severe thermal burn injury. MEASUREMENTS AND RESULTS Clinical data and coagulation and fibrinolysis parameters were measured during the first postburn week. The ICU 28-day mortality rate was 33%. Significant differences in the time course of coagulation markers were observed between survivors and nonsurvivors. SOFA score distinguished between patients with overt and nonovert disseminated intravascular coagulation (DIC) during the overall investigation period. Presence of overt DIC was related to mortality (OR=0.1). Antithrombin, protein S, plasminogen activator inhibitor 1, and SOFA score on day 3, protein C on day 5, and thrombin/antithrombin complexes on day 7 revealed a good prognostic value for ICU mortality, according to the area under ROC curves. CONCLUSIONS Severe thermal injury is associated with the early activation of coagulation cascade, presence of DIC, organ failure, and increased mortality.
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Early coagulopathy in multiple injury: an analysis from the German Trauma Registry on 8724 patients. Injury 2007; 38:298-304. [PMID: 17214989 DOI: 10.1016/j.injury.2006.10.003] [Citation(s) in RCA: 482] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2006] [Revised: 09/28/2006] [Accepted: 10/10/2006] [Indexed: 02/07/2023]
Abstract
BACKGROUND There is increasing evidence for acute traumatic coagulopathy occurring prior to emergency room (ER) admission but detailed information is lacking. PATIENTS AND METHODS A retrospective analysis using the German Trauma Registry database including 17,200 multiple injured patients was conducted to determine (a) to what extent clinically relevant coagulopathy has already been established upon ER admission, and whether its presence was associated (b) with the amount of intravenous fluids (i.v.) administered pre-clinically, (c) with the magnitude of injury, and (d) with impaired outcome and mortality. Eight thousand seven hundred and twenty-four patients with complete data sets were screened. RESULTS Coagulopathy upon ER admission as defined by prothrombin time test (Quick's value) <70% and/or platelets <100,000 microl(-1), was present in 34.2% of all patients. There was an increasing incidence for coagulopathy with increasing amounts of i.v. fluids administered pre-clinically. Coagulopathy was observed in >40% of patients with >2000 ml, in >50% with >3000 ml, and in >70% with >4000 ml administered. Ten percentage of patients presented with clotting disorders although pre-clinical resuscitation was limited to 500 ml of i.v. fluids maximum. The mean ISS score in the coagulopathy group was 30 (S.D. 15) versus 21 (S.D. 12) (p<0.001). Twenty-nine percentage of patients with coagulopathy developed multi organ failure (p<0.001). Early in-hospital mortality (<24h) was 13% in patients with coagulopathy (p<0.001) and overall in-hospital mortality totalled 28% (p<0.001). CONCLUSION There is a high frequency of established coagulopathy in multiple injury upon ER admission. The presence of early traumatic coagulopathy was associated with the amount of intravenous fluids administered pre-clinically, magnitude of injury, and impaired outcome.
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Barret JP, Dziewulski PG. Complications of the hypercoagulable status in burn injury. Burns 2006; 32:1005-8. [PMID: 16879922 DOI: 10.1016/j.burns.2006.02.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2005] [Accepted: 02/27/2006] [Indexed: 11/20/2022]
Abstract
Burn patients commonly exhibit signs of thrombogenicity, theoretically, puts them at risk for thromboembolic complications. However, the literature is controversial, and the real impact of these complications is yet unknown. We reviewed a series of 3331 burned patients to study the incidence of arterial thrombosis, deep venous thrombosis, and pulmonary thromboembolism. Ten patients presented with thrombotic complications, which accounted to a raw incidence of 0.3%. One complication occurred in the paediatric population (incidence of 0.1%) and nine in the adult population (incidence of 0.37%). There were three arterial thromboses (AT) of the common femoral artery, one in an 8 years old boy and two in two adult male patients. The other seven patients had deep venous thrombosis (DVT) of the inferior extremities and three of them presented with pulmonary thromboembolism (PTE). Thrombotic complications represented 3.38% of all deaths in our burn population. Despite the hypercoagulable status of burn patients, thrombotic complication and related mortality continue to have a low impact in this population.
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Affiliation(s)
- Juan P Barret
- St. Andrews Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford, Essex, United Kingdom.
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Niedermayr M, Schramm W, Kamolz L, Andel D, Römer W, Hoerauf K, Zimpfer M, Andel H. Antithrombin deficiency and its relationship to severe burns. Burns 2006; 33:173-8. [PMID: 17118562 DOI: 10.1016/j.burns.2006.06.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2006] [Accepted: 06/25/2006] [Indexed: 12/31/2022]
Abstract
Antithrombin (AT) is an important endogenous anticoagulant and exhibits marked anti-inflammatory properties. To evaluate the incidence of AT deficiency in severe burn and its correlation to the variables of the abbreviated burn severity index (ABSI), length of hospital stay (LOS) and mortality we collected data on the substitution of human plasma-derived AT concentrate in 201 consecutive patients suffering from severe burn. One hundred and eight patients (54%) developed AT deficiency during their hospitalisation and, according to our institutional practice, received substitution therapy by continuous infusion to maintain physiological plasma activity (70-120%). The mean administered dose served as a measure of AT deficiency. The percentage of patients in an AT deficient state was highest within the first 5 days after injury. It was 26% on day 1 and between 38% and 41% on days 2-5 and thereafter decreased constantly over time. A multiple regression analysis between the dependent variable mean administered dose of AT concentrate and the independent variables age, total body surface area burned (TBSA), gender, inhalation injury (INHAL), full thickness burn (FTB), LOS and mortality was performed. Age, gender and FTB showed no significant influence on the development of AT deficiency. Increasing TBSA and INHAL clearly increase the risk of developing AT deficiency (p-values 0.0001 and 0.037). The analysis also identified AT deficiency as an independent predictor of LOS and mortality (p-values 0.036 and 0.003). Development of AT deficiency is a frequent event after burn with significant correlation to TBSA and INHAL, increased mortality rates and longer hospital stays.
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Affiliation(s)
- M Niedermayr
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, 18-20 Waehringer Guertel, A-1090 Vienna, Austria
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