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Rabinowitz EJ, Ouyang A, Armstrong DR, Wallendorf M, Said AS. Poor Reliability of Common Measures of Anticoagulation in Pediatric Extracorporeal Membrane Oxygenation. ASAIO J 2022; 68:850-858. [PMID: 34581287 DOI: 10.1097/mat.0000000000001582] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Anticoagulation management in pediatric extracorporeal membrane oxygenation (ECMO) is challenging with multiple laboratory measures utilized across institutions without consensus guidelines. These include partial thromboplastin time (PTT), thromboelastography (TEG), and antifactor Xa (aXa). We aimed to evaluate the consistency of TEG R-time, PTT, and aXa correlation to bivalirudin and heparin dosing. We conducted a single-center restrospective review of pediatric ECMO cases from 2018 to 2020 anticoagulated with bivalirudin or heparin. We collected up to 14 serial simultaneous TEG R-time, PTT, and aXa measurements over a 7 day ECMO course with corresponding bivalirudin or heparin dosing. We analyzed the correlation between bivalirudin, heparin, and the three measurements of anticoagulation. A total of 67 ECMO runs, 32 bivalirudin, and 35 heparin, and more than 1,500 laboratory values, of which >80% simultaneous, were analyzed. When assessing correlations at the individual patient level, there was no consistent correlation between dosing and at least one laboratory parameter in the majority of patients. Furthermore, 44% of the bivalirudin cohort and 37% of the heparin cohort exhibited no correlation with any parameters. There were statistically significant correlations only between bivalirudin and heparin dosing and the sum total of the different laboratory tests. These inconsistencies highlight the importance of multimodality testing of anticoagulation in the management of pediatric ECMO anticoagulation and cannot be relied on in isolation from bedside clinical judgment.
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Affiliation(s)
- Edon J Rabinowitz
- From the Division of Pediatric Critical Care Medicine
- Division of Pediatric Cardiology
- Department of Pediatrics and St Louis Children's Hospital, Washington University School of Medicine in St Louis, St. Louis, Missouri
| | - Amy Ouyang
- Department of Pediatrics and St Louis Children's Hospital, Washington University School of Medicine in St Louis, St. Louis, Missouri
- Division of Neurology, Washington University in St. Louis, St. Louis, Missouri
| | | | - Michael Wallendorf
- Department of Pediatrics and St Louis Children's Hospital, Washington University School of Medicine in St Louis, St. Louis, Missouri
- Division of Biostatistics, Washington University in St. Louis, St. Louis, Missouri
| | - Ahmed S Said
- From the Division of Pediatric Critical Care Medicine
- Department of Pediatrics and St Louis Children's Hospital, Washington University School of Medicine in St Louis, St. Louis, Missouri
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2
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Tambwe MJ, Lalloo V, Engelbrecht A, Pelle P. A case report of detecting subclinical coagulopathy in a patient with boomslang (Dipholidus typus) bite. S Afr Fam Pract (2004) 2021; 63:e1-e5. [PMID: 34476966 PMCID: PMC8424712 DOI: 10.4102/safp.v63i1.5299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/04/2021] [Accepted: 05/29/2021] [Indexed: 11/30/2022] Open
Abstract
The boomslang (Dipholidus typus) has a predominantly haemotoxic venom. Because of the consumptive nature of the coagulopathy, signs and symptoms are usually delayed by up to 72 h after the bite. Traditional laboratory coagulation assays have a long turnaround time, by which time the patient’s bleeding and clotting profile has changed. A 25-year-old male patient was bitten by a boomslang. Despite two normal laboratory coagulation assay results, a point-of-care rotational thromboelastometry showed low fibrinogen levels, leading to the administration of monovalent antivenom. This report highlights the value of point-of-care thromboelastometry in the care of patients with subclinical boomslang envenomation.
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Affiliation(s)
- Mungela J Tambwe
- Department of Family Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria.
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Abdeen S, Bdeir K, Abu‐Fanne R, Maraga E, Higazi M, Khurram N, Feldman M, Deshpande C, Litzky LA, Heyman SN, Montone KT, Cines DB, Higazi AA. Alpha-defensins: risk factor for thrombosis in COVID-19 infection. Br J Haematol 2021; 194:44-52. [PMID: 34053084 PMCID: PMC8239944 DOI: 10.1111/bjh.17503] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/13/2022]
Abstract
The inflammatory response to SARS/CoV-2 (COVID-19) infection may contribute to the risk of thromboembolic complications. α-Defensins, antimicrobial peptides released from activated neutrophils, are anti-fibrinolytic and prothrombotic in vitro and in mouse models. In this prospective study of 176 patients with COVID-19 infection, we found that plasma levels of α-defensins were elevated, tracked with disease progression/mortality or resolution and with plasma levels of interleukin-6 (IL-6) and D-dimers. Immunohistochemistry revealed intense deposition of α-defensins in lung vasculature and thrombi. IL-6 stimulated the release of α-defensins from neutrophils, thereby accelerating coagulation and inhibiting fibrinolysis in human blood, imitating the coagulation pattern in COVID-19 patients. The procoagulant effect of IL-6 was inhibited by colchicine, which blocks neutrophil degranulation. These studies describe a link between inflammation and the risk of thromboembolism, and they identify a potential new approach to mitigate this risk in patients with COVID-19 and potentially in other inflammatory prothrombotic conditions.
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Affiliation(s)
- Suhair Abdeen
- Department of Clinical BiochemistryHadassah‐Hebrew UniversityJerusalemIL‐91120Israel
| | - Khalil Bdeir
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
| | - Rami Abu‐Fanne
- Heart InstituteHillel Yaffe Medical Center Affiliated with Rappaport Faculty of MedicineTechnion‐Israel Institute of TechnologyHaifaIsrael
| | - Emad Maraga
- Heart InstituteHillel Yaffe Medical Center Affiliated with Rappaport Faculty of MedicineTechnion‐Israel Institute of TechnologyHaifaIsrael
| | - Mohamed Higazi
- Department of Clinical BiochemistryHadassah‐Hebrew UniversityJerusalemIL‐91120Israel
| | - Nigar Khurram
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
| | - Michael Feldman
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
| | - Charuhas Deshpande
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
| | - Leslie A. Litzky
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
| | - Samuel N. Heyman
- Department of MedicineHadassah University HospitalMt. ScopusJerusalemIL‐91240Israel
| | - Kathleen T. Montone
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
| | - Douglas B. Cines
- Departments of Pathology and Laboratory MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPA19104USA
- Department of MedicineUniversity of Pennsylvania‐ Perelman School of MedicinePhiladelphiaPA19104USA
| | - Abd Al‐Roof Higazi
- Department of Clinical BiochemistryHadassah‐Hebrew UniversityJerusalemIL‐91120Israel
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Penk JS, Reddy S, Polito A, Cisco MI, Allan CK, Bembea M, Giglia TM, Cheng HH, Thiagarajan RR, Dalton HJ. Bleeding and Thrombosis With Pediatric Extracorporeal Life Support: A Roadmap for Management, Research, and the Future From the Pediatric Cardiac Intensive Care Society: Part 2. Pediatr Crit Care Med 2019; 20:1034-1039. [PMID: 31517728 PMCID: PMC7433702 DOI: 10.1097/pcc.0000000000002104] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To make recommendations on improving understanding of bleeding and thrombosis with pediatric extracorporeal life support including future research directions. DATA SOURCES Evaluation of literature and consensus conferences of pediatric critical care and extracorporeal life support experts. STUDY SELECTION A team of 10 experts with pediatric cardiac and extracorporeal membrane oxygenation experience and expertise met through the Pediatric Cardiac Intensive Care Society to review current knowledge and make recommendations for future research to establish "best practice" for anticoagulation management related to extracorporeal life support. DATA EXTRACTION/DATA SYNTHESIS This white paper focuses on clinical understanding and limitations of current strategies to monitor anticoagulation. For each test of anticoagulation, limitations of current knowledge are addressed and future research directions suggested. CONCLUSIONS No consensus on best practice for anticoagulation monitoring exists. Structured scientific evaluation to answer questions regarding anticoagulation monitoring and bleeding and thrombotic events should occur in multicenter studies using standardized approaches and well-defined endpoints. Outcomes related to need for component change, blood product administration, healthcare outcome, and economic assessment should be incorporated into studies. All centers should report data on patient receiving extracorporeal life support to a registry.
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Affiliation(s)
- Jamie S. Penk
- Division of Pediatric Cardiology, Department of Pediatrics, Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL
| | - Sushma Reddy
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, CA
| | - Angelo Polito
- Division of Neonatalogy and Pediatric Intensive Care, Department of Pediatrics, University Hospital of Geneva, Geneva, Switzerland
| | - Michael I Cisco
- Division of Critical Care Medicine, Department of Pediatrics, University of California San Francisco, San Francisco, CA
| | - Catherine K. Allan
- Division of Cardiac Critical Care, Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA
| | - Melania Bembea
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Therese M. Giglia
- Division of Cardiology, Department of Pediatrics, The Children’s Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Henry H. Cheng
- Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA
| | - Ravi R. Thiagarajan
- Division of Cardiac Critical Care, Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA
| | - Heidi J. Dalton
- Department of Pediatrics, INOVA Fairfax Hospital, Falls Church, VA
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5
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Zilberman-Rudenko J, Zhao FZ, Reitsma SE, Mitrugno A, Pang J, Shatzel JJ, Rick B, Tyrrell C, Hasan W, McCarty OJT, Schreiber MA. Effect of Pneumatic Tubing System Transport on Platelet Apheresis Units. Cardiovasc Eng Technol 2018; 9:515-527. [PMID: 29785664 PMCID: PMC6168073 DOI: 10.1007/s13239-018-0361-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 05/08/2018] [Indexed: 01/23/2023]
Abstract
Platelet apheresis units are transfused into patients to mitigate or prevent bleeding. In a hospital, platelet apheresis units are transported from the transfusion service to the healthcare teams via two methods: a pneumatic tubing system (PTS) or ambulatory transport. Whether PTS transport affects the activity and utility of platelet apheresis units is unclear. We quantified the gravitational forces and transport time associated with PTS and ambulatory transport within our hospital. Washed platelets and supernatants were prepared from platelet apheresis units prior to transport as well as following ambulatory or PTS transport. For each group, we compared resting and agonist-induced platelet activity and platelet aggregate formation on collagen or von Willebrand factor (VWF) under shear, platelet VWF-receptor expression and VWF multimer levels. Subjection of platelet apheresis units to rapid acceleration/deceleration forces during PTS transport did not pre-activate platelets or their ability to activate in response to platelet agonists as compared to ambulatory transport. Platelets within platelet apheresis units transported via PTS retained their ability to adhere to surfaces of VWF and collagen under shear, although platelet aggregation on collagen and VWF was diminished as compared to ambulatory transport. VWF multimer levels and platelet GPIb receptor expression was unaffected by PTS transport as compared to ambulatory transport. Subjection of platelet apheresis units to PTS transport did not significantly affect the baseline or agonist-induced levels of platelet activation as compared to ambulatory transport. Our case study suggests that PTS transport may not significantly affect the hemostatic potential of platelets within platelet apheresis units.
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Affiliation(s)
- Jevgenia Zilberman-Rudenko
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR, USA.
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, 3303 SW Bond Ave., Portland, OR, USA.
| | - Frank Z Zhao
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR, USA
| | - Stephanie E Reitsma
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, 3303 SW Bond Ave., Portland, OR, USA
| | - Annachiara Mitrugno
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, 3303 SW Bond Ave., Portland, OR, USA
| | - Jiaqing Pang
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, 3303 SW Bond Ave., Portland, OR, USA
| | - Joseph J Shatzel
- Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Beth Rick
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR, USA
| | - Christina Tyrrell
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Wohaib Hasan
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Owen J T McCarty
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, 3303 SW Bond Ave., Portland, OR, USA
| | - Martin A Schreiber
- Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, OR, USA
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6
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Umebachi R, Taira T, Wakai S, Aoki H, Otsuka H, Nakagawa Y, Inokuchi S. Measurement of blood lactate, D-dimer, and activated prothrombin time improves prediction of in-hospital mortality in adults blunt trauma. Am J Emerg Med 2017; 36:370-375. [PMID: 28869098 DOI: 10.1016/j.ajem.2017.08.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/11/2017] [Indexed: 12/27/2022] Open
Affiliation(s)
- Rimako Umebachi
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan.
| | - Takayuki Taira
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Shinjiro Wakai
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Hiromichi Aoki
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Hiroyuki Otsuka
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Yoshihide Nakagawa
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Sadaki Inokuchi
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
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7
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Sarangi SN, Acharya SS. Bleeding Disorders in Congenital Syndromes. Pediatrics 2017; 139:peds.2015-4360. [PMID: 28062601 DOI: 10.1542/peds.2015-4360] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/15/2016] [Indexed: 11/24/2022] Open
Abstract
Pediatricians provide a medical home for children with congenital syndromes who often need complex multidisciplinary care. There are some syndromes associated with thrombocytopenia, inherited platelet disorders, factor deficiencies, connective tissue disorders, and vascular abnormalities, which pose a real risk of bleeding in affected children associated with trauma or surgeries. The risk of bleeding is not often an obvious feature of the syndrome and not well documented in the literature. This makes it especially hard for pediatricians who may care for a handful of children with these rare congenital syndromes in their lifetime. This review provides an overview of the etiology of bleeding in the different congenital syndromes along with a concise review of the hematologic and nonhematologic clinical manifestations. It also highlights the need and timing of diagnostic evaluation to uncover the bleeding risk in these syndromes emphasizing a primary care approach.
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Affiliation(s)
- Susmita N Sarangi
- Bleeding Disorders and Thrombosis Program, Cohen Children's Medical Center of New York, New Hyde Park, New York
| | - Suchitra S Acharya
- Bleeding Disorders and Thrombosis Program, Cohen Children's Medical Center of New York, New Hyde Park, New York
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8
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Wynell-Mayow W, Guevel B, Quansah B, O'Leary R, Carrothers AD. Cambridge Polytrauma Pathway: Are we making appropriately guided decisions? Injury 2016; 47:2117-2121. [PMID: 27496722 DOI: 10.1016/j.injury.2016.05.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 05/29/2016] [Indexed: 02/02/2023]
Abstract
Addenbrooke's Hospital, the Major Trauma Centre for the East of England Trauma Network, received 1070 major trauma patients between 1st January and 31st December 2014. In order to improve care, an audit was performed of 59 patients meeting our own selection criteria for orthopaedic polytrauma between 1st January 2013 and 31st December 2013. The Cambridge Polytrauma Pathway was devised through NCEPOD guidelines, literature review, internal and external discussion. It facilitates provision of best practice Early Appropriate Care, encompassing - multidisciplinary consultant decisions around the patient in our Neurological and Trauma Critical Care Unit, early full body trauma CT scans, serial measurements of lactate and fibrinogen levels, and out-of-hours orthopaedic theatre reserved for life-and-limb threatening injuries. Re-audit was conducted of 15 patients meeting selection criteria, admitted between 1st October 2014 and 31st March 2015. Significant improvements in recording of lactate and fibrinogen were demonstrated, both on admission (lactate - p<0.000, fibrinogen - p=0.015), and preoperatively (lactate - p=0.003, fibrinogen - p=0.030). Time to trauma CT was unchanged (p=0.536) with a median time to CT of 0.53h at re-audit (IQR 0.48-0.75). The number of patients receiving definitive orthopaedic intervention out-of-hours reduced from 8 to zero (p=0.195). The approach of facilitating management decisions to be made at early daytime MDT meetings has been adopted. It is anticipated that this pathway will improve outcomes in orthopaedic polytrauma patients and it is recommended that either the GOS-E, or the EQ-5D scoring systems be introduced to assess this.
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Affiliation(s)
- William Wynell-Mayow
- Department of Trauma and Orthopaedics, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge CB2 0QQ, UK
| | - Borna Guevel
- Department of Trauma and Orthopaedics, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge CB2 0QQ, UK
| | - Benjamin Quansah
- Department of Trauma and Orthopaedics, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge CB2 0QQ, UK
| | - Ronan O'Leary
- Neurosciences and Trauma Critical Care Unit, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge CB2 0QQ, UK
| | - Andrew D Carrothers
- Department of Trauma and Orthopaedics, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge CB2 0QQ, UK.
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9
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Kreitzer NP, Bonomo J, Kanter D, Zammit C. Review of Thromboelastography in Neurocritical Care. Neurocrit Care 2016; 23:427-33. [PMID: 26275677 DOI: 10.1007/s12028-015-0187-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Natalie P Kreitzer
- Neurocritical Care and Neurovascular Emergencies, University of Cincinnati, Cincinnati, OH, USA.
| | - Jordan Bonomo
- Neurosurgery/Neurocritical Care, University of Cincinnati, Cincinnati, OH, USA
| | - Daniel Kanter
- Division of Neurocritical Care, University of Cincinnati, Cincinnati, OH, USA
| | - Christopher Zammit
- Neurosurgery/Neurocritical Care, University of Cincinnati, Cincinnati, OH, USA
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10
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Kim JS, Sul YH. Traumatic Coagulopathy. JOURNAL OF ACUTE CARE SURGERY 2015. [DOI: 10.17479/jacs.2015.5.2.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Joong Suck Kim
- Department of Surgery, Eulji University Hospital, Daejeon, Korea
| | - Young Hoon Sul
- Department of Surgery, Eulji University Hospital, Daejeon, Korea
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11
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Jacob M, Kumar P. The challenge in management of hemorrhagic shock in trauma. Med J Armed Forces India 2014; 70:163-9. [PMID: 24843206 DOI: 10.1016/j.mjafi.2014.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 03/02/2014] [Indexed: 12/29/2022] Open
Abstract
Transfusion and resuscitation practices in trauma have undergone a sea change over the past decade. New understanding of transfusion physiology and experiences in military trauma over the last decade has identified key factors taken as challenges in trauma. The most important challenge remains acute traumatic coagulopathy (ATC) which sets in early after a trauma and spirals the patient into shock and continued bleeding. World wide trauma is the leading cause of mortality. More than 6 million deaths occur due to trauma out of which 20% are due to uncontrollable bleeding. Out of the hospital admissions in trauma 20% develop coagulopathy. Mortality is three to four times higher in a patient with coagulopathy and thus prevention and correction of coagulopathy is the central goal of the management of hemorrhagic shock in trauma. Damage control resuscitation (DCR), a strategy combining the techniques of permissive hypotension, hemostatic resuscitation and damage control surgery has been widely adopted as the preferred method of resuscitation in patients with haemorrhagic shock. The over-riding goals of DCR are to mitigate metabolic acidosis, hypothermia and coagulopathy, This article looks at the importance of acute traumatic coagulopathy, its etiology, diagnosis, effects and resuscitation strategies to prevent it and to see the background behind this shift.
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Affiliation(s)
- Mathews Jacob
- Associate Professor, Department of Anaesthesiology and Critical Care, Armed Forces Medical College, Pune 411040, India
| | - Praveen Kumar
- Resident, Department of Anaesthesiology and Critical Care, Armed Forces Medical College, Pune 411040, India
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12
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Palmer L, Martin L. Traumatic coagulopathy--part 1: Pathophysiology and diagnosis. J Vet Emerg Crit Care (San Antonio) 2013; 24:63-74. [PMID: 24382014 DOI: 10.1111/vec.12130] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 11/07/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To review the current literature in reference to the pathophysiology and diagnostic modalities available for acute traumatic coagulopathy (ATC) in relationship to traumatic hemorrhagic shock. ETIOLOGY Posttraumatic hemorrhage is responsible for one of the leading causes of preventable human deaths worldwide. Acute traumatic coagulopathy is an endogenous hypocoagulable condition that has been observed during the immediate (< 1 hour) posttraumatic period. Phenotypically, ATC manifests as a state of systemic hypocoagulability and hyperfibrinolysis. Although different functional mechanisms have been proposed for causing ATC, it is universally thought to be a manifestation of severe tissue injury, shock-induced hypoperfusion, systemic inflammation, and endothelial damage. Excessive activation of the thrombin-thrombomodulin activated Protein C pathway, catecholamine-induced endothelial damage as well as disseminated intravascular coagulation (DIC) with a fibrinolytic phenotype are all hypotheses that have been proposed in attempts to explain the functional mechanism of ATC. DIAGNOSIS An accurate and reliable test remains to be validated for ATC. Traditional coagulation assays (activated partial thromboplastin times and prothrombin times) along with platelet count and fibrinogen concentrations have been used more commonly. Viscoelastic tests (thromboelastography and rotational thromboelastometry) are currently being investigated as a more predictive modality for identifying and guiding therapy for ATC. THERAPY Damage control resuscitation and hemostatic resuscitation are gaining favor as the optimal resuscitative strategies for hemorrhagic shock and ATC. Antifibrinolytics may also play a role when hyperfibrinolysis is present. PROGNOSIS Massive hemorrhage accounts for 30-56% of prehospital posttraumatic deaths in people, with coagulopathic hemorrhage remaining one of the major causes of preventable deaths within the first 24 hours posttrauma. Ten to twenty-five percent of human trauma patients experience ATC, which has been shown to prolong hemorrhage, deter resuscitative efforts, promote sepsis, and increase mortality by at least 4-fold. Prognosis in veterinary patients is not currently known.
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Affiliation(s)
- Lee Palmer
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL, 36849
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13
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TEG-guided resuscitation is superior to standardized MTP resuscitation in massively transfused penetrating trauma patients. J Trauma Acute Care Surg 2013; 74:378-85; discussion 385-6. [PMID: 23354228 DOI: 10.1097/ta.0b013e31827e20e0] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND For nearly a decade, our center performed thromboelastograms (TEGs) to analyze coagulation profiles, allowing rapid data-driven blood component therapy. After consensus recommendations for massive transfusion protocols (MTPs), we implemented an MTP in October 2009 with 1:1:1 ratio of blood (red blood cells [RBC]), plasma (fresh-frozen plasma [FFP]), and platelets. We hypothesized that TEG-directed resuscitation is equivalent to MTP resuscitation. METHODS All patients receiving 6 units (U) or more of RBC in the first 24 hours for 21 months before and after MTP initiation in an urban Level I trauma center were examined. Demographics, mechanism of injury (MOI), Injury Severity Score (ISS), 24-hour volume of RBC, FFP, platelets, crystalloid, and 30-day mortality were compared, excluding patients with traumatic brain injuries. Variables were analyzed using Student's t-test and χ2 or Fisher's exact test. RESULTS For the preMTP group, there were 165 patients. In the MTP group, there were 124 patients. There were no significant differences in ISS, age, or sex. PreMTP patients with 6U or more RBC had significantly more penetrating MOI (p = 0.017), whereas preMTP patients with 10U or more RBC had similar MOIs. All patients received less crystalloid after MTP adoption (p < 0.001). There was no difference in volume of blood products or mortality in patients receiving 6U or more RBC. Blunt trauma MTP patients who received 10U or more RBC received more FFP (p = 0.02), with no change in mortality. Penetrating trauma patients who received 10U or more RBC received a similar volume of FFP; however, mortality increased from 54.1% for MTP versus 33.3% preMTP (p = 0.04). CONCLUSION TEG-directed resuscitation is equivalent to standardized MTP for patients receiving 6U or more RBC and for blunt MOI patients receiving 10U or more RBC. MTP therapy worsened mortality in penetrating MOI patients receiving 10U or more RBC, indicating a continued need for TEG-directed therapy. A 1:1:1 strategy may not be adequate in all patients. LEVEL OF EVIDENCE Therapeutic study, level IV.
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