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Thachil J. Lessons learnt from COVID-19 coagulopathy. ACTA ACUST UNITED AC 2021; 2:577-584. [PMID: 34226900 PMCID: PMC8242569 DOI: 10.1002/jha2.228] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 01/08/2023]
Abstract
The coronavirus disease 2019 (COVID‐19) pandemic has already left an indelible mark in human lives. Despite the havoc it created, this pandemic also saw significant advances in the management of an infectious disease wherein worldwide collaborative efforts from health care professionals have been unprecedented. One of the commonest complications recognised early in the pandemic is the development of coagulopathy. In this review, the lessons learnt from COVID‐19 coagulopathy are summarised with some perspectives on future clinical and research strategies. These include how local versus systemic coagulopathy can matter, how we can put D‐dimers to effective use, exhort more input into identifying a simple platelet activation marker, rethink the role of fibrinogen, look differently at lupus anticoagulant and heparin‐induced thrombocytopenia, bring back disseminated intravascular coagulation into our differential diagnosis slate and most importantly channel more funding into haemostasis and thrombosis research.
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Affiliation(s)
- Jecko Thachil
- Department of Haematology Manchester University Hospitals Manchester UK
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152
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Venous thromboembolism associated with CD19-directed CAR T-cell therapy in large B-cell lymphoma. Blood Adv 2021; 4:4086-4090. [PMID: 32877523 DOI: 10.1182/bloodadvances.2020002060] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/27/2020] [Indexed: 12/19/2022] Open
Abstract
Key Points
VTE developed in 11% of lymphoma patients after CAR T-cell therapy and was managed safely with anticoagulation. Coagulation abnormalities after CAR T-cell therapy occur but do not commonly lead to bleeding events.
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153
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Crighton GL, Huisman EJ. Pediatric Fibrinogen PART II-Overview of Indications for Fibrinogen Use in Critically Ill Children. Front Pediatr 2021; 9:647680. [PMID: 33968851 PMCID: PMC8097134 DOI: 10.3389/fped.2021.647680] [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: 12/30/2020] [Accepted: 03/09/2021] [Indexed: 01/16/2023] Open
Abstract
Bleeding is frequently seen in critically ill children and is associated with increased morbidity and mortality. Fibrinogen is an essential coagulation factor for hemostasis and hypofibrinogenemia is an important risk factor for bleeding in pediatric and adult settings. Cryoprecipitate and fibrinogen concentrate are often given to critically ill children to prevent bleeding and improve fibrinogen levels, especially in the setting of surgery, trauma, leukemia, disseminated intravascular coagulopathy, and liver failure. The theoretical benefit of fibrinogen supplementation to treat hypofibrinogenemia appears obvious, yet the evidence to support fibrinogen supplementation in children is sparce and clinical indications are poorly defined. In addition, it is unknown what the optimal fibrinogen replacement product is in children and neonates or what the targets of treatment should be. As a result, there is considerable variability in practice. In this article we will review the current pediatric and applicable adult literature with regard to the use of fibrinogen replacement in different pediatric critical care contexts. We will discuss the clinical indications for fibrinogen supplementation in critically ill children and the evidence to support their use. We summarize by highlighting current knowledge gaps and areas for future research.
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Affiliation(s)
| | - Elise J. Huisman
- Department of Hematology, Erasmus MC–Sophia Children's Hospital, Rotterdam, Netherlands
- Department of Clinical Chemistry and Blood Transfusion, Erasmus MC, Rotterdam, Netherlands
- Department of Transfusion Medicine, Sanquin Blood Supply, Amsterdam, Netherlands
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154
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Disseminated intravascular coagulation as a complication of bursitis: angiogenesis and repetitive bleeding as potential factors for disseminated intravascular coagulation: a case report. J Med Case Rep 2021; 15:155. [PMID: 33836804 PMCID: PMC8035724 DOI: 10.1186/s13256-021-02773-x] [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: 08/01/2019] [Accepted: 03/08/2021] [Indexed: 11/10/2022] Open
Abstract
Background Malignant tumors, such as acute leukemia and solid cancers, frequently cause disseminated intravascular coagulation. However, cases of disseminated intravascular coagulation as a complication of bursitis were not reported previously. Case presentation A 72-year-old Japanese woman was scheduled to undergo resection of a rapidly growing subcutaneous tumor-like lesion on her left back. Preoperative blood tests suggested disseminated intravascular coagulation. The resected lesion was cystic tumor containing a hematoma. After the operation, the patient completely recovered from disseminated intravascular coagulation, indicating that disseminated intravascular coagulation in this case was caused by the tumor. Pathological examination of the resected tumor revealed considerable fibrin deposition and angiogenesis on the cyst wall, which was presumably a response to inflammation and indicated presence of repetitive intratumoral bleeding, subsequently leading to a diagnosis of chronic hemorrhagic bursitis. Conclusions Clinicians should note that, despite being benign, soft-tissue tumors accompanied by inflammation with angiogenesis and repetitive intratumoral bleeding can cause disseminated intravascular coagulation, albeit rarely. Supplementary Information The online version contains supplementary material available at 10.1186/s13256-021-02773-x.
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155
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Cutaneous Vasculopathy in a COVID-19 Critically Ill Patient: A Histologic, Immunohistochemical, and Electron Microscopy Study. Case Rep Crit Care 2021; 2021:6644853. [PMID: 33859845 PMCID: PMC8028722 DOI: 10.1155/2021/6644853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/26/2021] [Accepted: 03/24/2021] [Indexed: 01/08/2023] Open
Abstract
We describe a critically ill, SARS-CoV-2 positive patient with respiratory failure and thrombotic/livedoid skin lesions, appearing during the course of the disease. The biopsy of the lesions revealed an occlusive, pauci-inflammatory vasculopathy of the cutaneous small vessels characterized by complement and fibrinogen deposition on vascular walls, pointing to a thrombotic vasculopathy. Transmission electron microscopy of the affected skin failed to reveal any viral inclusions. Clinical evaluation and laboratory findings ruled out systemic coagulopathies and disseminated intravascular coagulation, drug-induced skin reaction, and common viral rashes. Our hypothesis is that the, herein evidenced, microvascular occlusive injury might constitute a significant pathologic mechanism in COVID-19, being a common denominator between cutaneous and pulmonary manifestations.
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156
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Mostafavi A, Daemi H, Rajabi S, Baharvand H. Highly tough and ultrafast self-healable dual physically crosslinked sulfated alginate-based polyurethane elastomers for vascular tissue engineering. Carbohydr Polym 2021; 257:117632. [PMID: 33541658 DOI: 10.1016/j.carbpol.2021.117632] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/07/2020] [Accepted: 01/06/2021] [Indexed: 12/19/2022]
Abstract
Since vascular diseases are regarded as a major cause of death worldwide, developing engineered biomimetic elastomers with physicochemical and biological properties resembling those of the natural vascular tissues, is vital for vascular tissue engineering (VTE). This study reports synthesis of highly tough supramolecular biologically active alginate-based supramolecular polyurethane (BASPU) elastomers that benefit from the presence of two physical networks with different strength of soft tertiary ammonium-soft sulfate pairs, as strong ionic bonds, and soft tertiary ammonium-hard carboxylate groups, as the weak bonds. The presence of sulfate groups resulted in low Young's modulus, high toughness and stretchability, proper energy dissipation, ultrafast self-healing and complete healing efficiency of BASPU. In vitro studies showed higher endothelial cells attachment, higher anticoagulation ability and significantly less platelet adhesion for BASPUs compared to the commercial vascular prosthesis. The histological studies of subcutaneously implanted scaffolds confirmed their low fibrosis and gradual biodegradation during 2 months of following.
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Affiliation(s)
- Azadeh Mostafavi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hamed Daemi
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Sarah Rajabi
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, University of Science and Culture, Tehran, Iran
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157
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Nichols MM, Crane GM. Educational Case: Differentiating Thrombotic Thrombocytopenic Purpura From Other Thrombotic Microangiopathies and Potential Role of the Spleen. Acad Pathol 2021; 8:23742895211001312. [PMID: 33855171 PMCID: PMC8013907 DOI: 10.1177/23742895211001312] [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: 01/23/2021] [Revised: 01/23/2021] [Accepted: 02/19/2021] [Indexed: 11/17/2022] Open
Abstract
The following fictional case is intended as a learning tool within the Pathology Competencies for Medical Education (PCME), a set of national standards for teaching pathology. These are divided into three basic competencies: Disease Mechanisms and Processes, Organ System Pathology, and Diagnostic Medicine and Therapeutic Pathology. For additional information, and a full list of learning objectives for all three competencies, seehttp://journals.sagepub.com/doi/10.1177/2374289517715040.1
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Affiliation(s)
- Meredith M Nichols
- Robert J. Tomsich Department of Pathology and Laboratory Medicine, Cleveland Clinic Foundation, OH, USA
| | - Genevieve M Crane
- Robert J. Tomsich Department of Pathology and Laboratory Medicine, Cleveland Clinic Foundation, OH, USA
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158
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Abstract
OBJECTIVES This article describes the pathophysiology and causes of disseminated intravascular coagulation (DIC). Implications for nurses are also reviewed. DATA SOURCES Pee-reviewed articles and up-to-date references were used to check accuracy of the information and provide information for current management of this syndrome. CONCLUSION DIC is an oncologic emergency in which bleeding and clotting occur simultaneously. In the cancer population, the syndrome is frequently associated with certain malignancies or sepsis. If not recognized and treated early, mortality can be high. This article describes the risk factors that contribute to DIC, clinical manifestations of DIC, and its treatment. IMPLICATIONS FOR NURSING PRACTICE Nurses need to consider the presenting diagnosis of the patient and understand laboratory abnormalities that signify DIC. The nurse plays a key role in early recognition of this syndrome as prompt treatment can reduce fatality.
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159
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Iba T, Warkentin TE, Connors JM, Levy JH. Therapeutic strategies in patients with coagulopathy and disseminated intravascular coagulation: awareness of the phase-dependent characteristics. Minerva Med 2021; 112:701-712. [PMID: 33709675 DOI: 10.23736/s0026-4806.21.07469-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Disseminated intravascular coagulation (DIC) has long been understood as a condition where both thrombotic and hemostatic abnormalities coexist. DIC is a difficult complication for clinicians to manage as it is due to multiple underlying complications of pathophysiologic abnormalities in diverse disease states. Ongoing research continues to define the meaning of DIC, evaluate therapeutic options, and how it presents with the complex paradigm of systemic activation of coagulation. In this review we introduce the current topis regarding this tough situation. EVIDENCE ACQUISITION Online search of published medical literature through MEDLINE and Web of Sience using the term "disseminated intravascular coagulation", "coagulopathy", "coagulation disorder", "hemostasis", "fibrinolysis", "thrombus" and "anticoagulants". EVIDENCE SYNTHESIS Articles were chosen for inclusion based on their relevance to disseminated intravascular coagulation, coagulopathy, hemostasis and thrombosis in sepsis, COVID-19, trauma, and obstetrics. Reference lists were reviewed to identify additional relevant articles. CONCLUSIONS DIC is recognized as a pathologically triggered and dysregulated systemic activation of coagulation in response to various noxious stimuli. DIC's phenotype and clinical manifestations can vary from prothrombotic to hemorrhagic, depending on the underlying diseases. However, the fundamental mechanisms of systemic and vascular endothelial dysfunction can be explained as different phases of the acute response, with an initial prothrombotic phase that can commonly change to hemostatic insufficiency. Thrombin is the key initiator of the pathophysiologic process along with endothelial injury and initially fibrinolysis activation followed by fibrinolysis suppression. There is no established approach for managing DIC beyond initially treating the underlying disease and replacement therapy for the management of coagulopathy. Targeting anticoagulation therapy with antithrombin concentrates and recombinant thrombomodulin for the prevention of microthrombus formation, and antifibrinolytic therapy using tranexamic acid for the coagulopathy after massive bleeding, continue to be studied as therapeutic options.
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Affiliation(s)
- Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan -
| | - Theodore E Warkentin
- Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Canada
| | - Jean Marie Connors
- Hematology Division Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jerrold H Levy
- Department of Anesthesiology, Critical Care, and Surgery, Duke University School of Medicine, Durham, NC, USA
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160
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Toeback J, Depoortere SD, Vermassen J, Vereecke EL, Van Driessche V, Hemelsoet DM. Microbleed patterns in critical illness and COVID-19. Clin Neurol Neurosurg 2021; 203:106594. [PMID: 33735661 PMCID: PMC7939996 DOI: 10.1016/j.clineuro.2021.106594] [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] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/18/2021] [Accepted: 03/02/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Cerebral microbleeds are increasingly reported in critical ill patients with respiratory failure in need of mechanical ventilation and/or extracorporeal membrane oxygenation (ECMO). Typically, these critical illness-associated microbleeds involve the juxtacortical white matter and corpus callosum. Recently, this pattern was reported in patients with respiratory failure, suffering from COVID-19. MATERIALS AND METHODS In this retrospective single-center study, we listed patients from March 11, 2020 to September 2, 2020, with laboratory-confirmed COVID-19, critical illness and cerebral microbleeds. Literature research was conducted through a methodical search on Pubmed databases on critical illness-associated microbleeds and cerebral microbleeds described in patients with COVID-19. RESULTS AND DISCUSSION On 279 COVID-19 admissions, two cases of cerebral microbleeds were detected in critical ill patients with respiratory failure due to COVID-19. Based on review of existing literature critical illness-associated microbleeds tend to predominate in subcortical white matter and corpus callosum. Cerebral microbleeds in patients with COVID-19 tend to follow similar patterns as reported in critical illness-associated microbleeds. Hence, one patient with typical critical illness-associated microbleeds and COVID-19 is reported. However, a new pattern of widespread cortico-juxtacortical microbleeds, predominantly in the anterior vascular territory with relative sparing of deep gray matter, corpus callosum and infratentorial structures is documented in a second case. The possible etiologies of these microbleeds include hypoxia, hemorrhagic diathesis, brain endothelial erythrophagocytosis and/or cytokinopathies. An association with COVID-19 remains to be determined. CONCLUSION Further systematic investigation of microbleed patterns in patients with neurological impairment and COVID-19 is necessary.
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Affiliation(s)
- Jonas Toeback
- Ghent University Hospital, Department of Neurology, Corneel Heymanslaan 10, 9000 Gent, Belgium.
| | - Sofie Dr Depoortere
- University Hospitals Leuven, Department of Neurology, Herestraat 49, 3000 Leuven, Belgium
| | - Joris Vermassen
- Ghent University Hospital, Department of Intensive Care, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - Elke Lh Vereecke
- Ghent University Hospital, Department of Radiology, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - Veroniek Van Driessche
- Ghent University Hospital, Department of Radiology, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - Dimitri M Hemelsoet
- Ghent University Hospital, Department of Neurology, Corneel Heymanslaan 10, 9000 Gent, Belgium
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161
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Kawasugi K, Wada H, Honda G, Kawano N, Uchiyama T, Madoiwa S, Takezako N, Suzuki K, Seki Y, Ikezoe T, Iba T, Okamoto K. Hypofibrinogenemia is associated with a high degree of risk in infectious diseases: a post-hoc analysis of post-marketing surveillance of patients with disseminated intravascular coagulation treated with thrombomodulin alfa. Thromb J 2021; 19:12. [PMID: 33632246 PMCID: PMC7908729 DOI: 10.1186/s12959-021-00264-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
Background In patients with infectious diseases, disseminated intravascular coagulation (DIC) is often diagnosed without the fibrinogen value. The relationship between hypofibrinogenemia and outcomes of DIC in infectious diseases has thus remained unclear. Methods We analyzed 3204 patients who received with thrombomodulin alfa (TM-α) for DIC and suspected DIC. Hypofibrinogenemia was defined by a fibrinogen level < 1.5 g/L. Results Hypofibrinogenemia was observed in 10.3% of patients with infectious diseases. The frequencies of both bleeding and organ failure symptoms, and the scores for organ failure or the DIC diagnostic criteria were significantly higher in infectious disease patients with hypofibrinogenemia, suggesting that in patients with infectious diseases, hypofibrinogenemia is associated with more progressive and severe DIC. Although the 28-day survival rate and the DIC resolution rate were both significantly lower for infectious disease patients with DIC with hypofibrinogenemia than for those without hypofibrinogenemia, this difference was not observed in DIC patients with hematological diseases. Conclusions Hypofibrinogenemia among infectious disease patients with DIC may reflect increased consumption of fibrinogen due to accelerated coagulation reactions, while hypofibrinogenemia among hematological disease patients with DIC may be caused by fibrinogenolysis due to hyperfibrinolysis, and frequently results in bleeding and multiple-organ failure. Supplementary Information The online version contains supplementary material available at 10.1186/s12959-021-00264-z.
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Affiliation(s)
- Kazuo Kawasugi
- Faculty of Medical Technology, Teikyo University, Tokyo, Japan
| | - Hideo Wada
- Department of General Medicine, Mie Prefectural General Medical Center, Yokkaichi, Japan.
| | - Goichi Honda
- Department of Medical Affairs, Asahi Kasei Pharma Corporation, Tokyo, Japan
| | - Noriaki Kawano
- Department of Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan
| | - Toshimasa Uchiyama
- Department of Laboratory Medicine, National Hospital Organization Takasaki General Medical Center, Takasaki, Japan
| | - Seiji Madoiwa
- Department of Clinical Laboratory Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Naoki Takezako
- Department of Hematology, National Hospital Organization Disaster Medical Center, Tokyo, Japan
| | - Kei Suzuki
- Emergency and Critical Care Center, Mie University Hospital, Tsu, Japan
| | - Yoshinobu Seki
- Department of Hematology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Takayuki Ikezoe
- Department of Hematology, Fukushima Medical University, Fukushima, Japan
| | - Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kohji Okamoto
- Department of Surgery, Center for Gastroenterology and Liver Disease, Kitakyushu City Yahata Hospital, Fukuoka, Japan
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162
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The COVID-19 Pandemic: Disproportionate Thrombotic Tendency and Management Recommendations. Trop Med Infect Dis 2021; 6:tropicalmed6010026. [PMID: 33670475 PMCID: PMC7930939 DOI: 10.3390/tropicalmed6010026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/13/2020] [Accepted: 01/08/2021] [Indexed: 02/06/2023] Open
Abstract
COVID-19 is an infectious disease caused by the SARS COV-2 virus. Patients with COVID-19 are susceptible to thrombosis due to excessive inflammation, platelet activation, endothelial dysfunction, and circulatory stasis, resulting in an increased risk of death due to associated coagulopathies. In addition, many patients receiving antithrombotic therapy for pre-existing thrombotic diseases can develop COVID-19, which can further complicate dose adjustment, choice and laboratory monitoring of antithrombotic treatment. This review summarizes the laboratory findings, the prohemostatic state, incidence of thromboembolic events and some potential therapeutic interventions of COVID-19 associated coagulopathy. We explore the roles of biomarkers of thrombosis and inflammation according to the severity of COVID-19. While therapeutic anticoagulation has been used empirically in some patients with severe COVID-19 but without thrombosis, it may be preferable to provide supportive care based on evidence-based randomized clinical trials. The likely lifting of travel restrictions will accelerate the spread of COVID-19, increasing morbidity and mortality across nations. Many individuals will continue to receive anticoagulation therapy regardless of their location, requiring on-going treatment with low-molecular weight heparin, vitamin K antagonist or direct-acting anticoagulants.
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163
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Mori H, Ohkawara H, Togawa R, Rikimaru M, Shibata Y, Ikezoe T. Diagnosis and treatment of disseminated intravascular coagulation in COVID-19 patients: a scoping review. Int J Hematol 2021; 113:320-329. [PMID: 33550533 PMCID: PMC7868079 DOI: 10.1007/s12185-021-03084-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 11/25/2022]
Abstract
Background Disseminated intravascular coagulation (DIC) is noted in severe cases of coronavirus disease 2019 (COVID-19). Recently, a number of studies evaluating the diagnosis and treatment of DIC in COVID-19 patients have been reported. Objective The aim of this study is to identify existing gaps where further research is needed on the diagnosis and treatment of DIC complicated by COVID-19. Methods We used the PRISMA Extension for Scoping Reviews. MEDLINE, CENTRAL, WHO-ICTRP, ClinicalTrial.gov and PROSPERO were searched from their inception to 6 October 2020. Results Seven studies were selected; five were already published and two are ongoing. DIC was diagnosed using the International Society on Thrombosis and Hemostasis (ISTH) DIC score (n = 4) and the sepsis-induced coagulopathy (SIC) DIC score (n = 5). Seven studies examined the effectiveness of low molecular weight heparin (LMWH); of these, four studies used a prophylactic dose and five used a therapeutic dose of LMWH. A prophylactic dose of unfractionated heparin (UFH) was investigated in two studies. Conclusion Studies on DIC diagnostic criteria and anticoagulants were limited to the ISTH or SIC scores and heparinoids, particularly LMWH. Further studies are needed to compare these with other available DIC scoring systems and anticoagulants.
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Affiliation(s)
- Hirotaka Mori
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Hiroshi Ohkawara
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Ryuichi Togawa
- Department of Respiratory Medicine, Fukushima Medical University, Fukushima, 960-1295, Japan
| | - Mami Rikimaru
- Department of Respiratory Medicine, Fukushima Medical University, Fukushima, 960-1295, Japan
| | - Yoko Shibata
- Department of Respiratory Medicine, Fukushima Medical University, Fukushima, 960-1295, Japan
| | - Takayuki Ikezoe
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-1295, Japan.
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164
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Klompas AM, Boswell MR, Plack DL, Smith MM. Thrombocytopenia: Perioperative Considerations for Patients Undergoing Cardiac Surgery. J Cardiothorac Vasc Anesth 2021; 36:893-905. [PMID: 33707107 DOI: 10.1053/j.jvca.2021.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 11/11/2022]
Abstract
The etiologies of thrombocytopenia in patients presenting for cardiac surgery are extensive, but clinically relevant conditions generally can be categorized by those related to decreased platelet production or increased platelet destruction. Many causes require mere acknowledgment and availability of allogeneic platelet transfusion; others have unique considerations for which providers should be familiar. The purpose of this review is to provide an overview of the common causes of thrombocytopenia, summarize the literature, and discuss perioperative considerations for patients undergoing cardiac surgery.
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Affiliation(s)
- Allan M Klompas
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic College of Medicine and Science, 200 First St SW, Rochester, MN
| | - Michael R Boswell
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic College of Medicine and Science, 200 First St SW, Rochester, MN
| | - Daniel L Plack
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic College of Medicine and Science, 200 First St SW, Rochester, MN
| | - Mark M Smith
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic College of Medicine and Science, 200 First St SW, Rochester, MN.
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165
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Xiao M, Sun A, Yu F, Xiao Y, Li L, Shen D, Xiang C, Dong J. Intraductal papillary neoplasm of intrahepatic bile ducts complicated by chronic disseminated intravascular coagulation and thrombosis: A case report. Medicine (Baltimore) 2021; 100:e24454. [PMID: 33592896 PMCID: PMC7870212 DOI: 10.1097/md.0000000000024454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/06/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Intraductal papillary neoplasm of the bile ducts (IPNB) is a relatively rare tumor that is clinically characterized by digestive symptoms. The concurrent occurrence of chronic disseminated intravascular coagulation (DIC) with thrombosis is an extremely rare combination, reported in patients with IPNB. The clinical features of chronic DIC include microangiopathic hemolytic anemia, thrombocytopenia, and hypofibrinogenemia. Here, we report the case of a mucin-producing IPNB patient with hematological abnormalities. PATIENT CONCERNS A 58-year-old male patient suffered from abdominal distension for more than 2 months with obstructive jaundice appearance. Abdominal contrast-enhanced computed tomography and magnetic resonance cholangiopancreatography showed a neoplasm in the right hepatic lobe. Multiple intravascular fillings were found in the inferior vena cava, pulmonary artery, and right atrium. Anemia and hypofibrinogenemia were discovered through routine laboratory tests. The count of platelets began to decline 25 days after admission, while 1 month after hospitalization, the patient developed abdominal pain, fever, and shock. DIAGNOSIS Pathological examination demonstrated IPNB with a part of high-grade intraepithelial neoplasia. Cardiac and inferior vena cava emboli were diagnosed as thrombi without neoplastic cells. Immunohistochemically, tumor cells were positive for Vimentin (mesenchyme), CK7, CK19, MUC-1, MUC-5AC, MUC-6, S-100p (focal), Ki-67 (12%), and negative for Inhibin-α, ER, CK20, CEA, and MUC-2. Additionally, immunohistochemistry indicated that IPNB was a mucus-secretion gastric type. The laboratory tests confirmed the presence of chronic DIC. INTERVENTIONS The patient was given anticoagulant therapy before hepatectomy and right atrium thrombectomy was performed under cardiopulmonary bypass. OUTCOMES After anticoagulant therapy, the levels of hemoglobin, platelet, and fibrinogen of the patient returned to normal. Hepatectomy and thrombus removal was successfully performed. Then, the patient was discharged 12 days after the operation. After 12 months of follow-up, the patient recovered well without any hematologic abnormalities and no signs of tumor recurrence were observed. LESSONS IPNB may cause hematological complications, which can be easily misdiagnosed. It is essential to pay particular attention to the hematological abnormalities of patients with IPNB. Early detection and differential diagnosis of chronic DIC and thrombosis are necessary. We note that anticoagulant therapy coupled with surgery is an effective strategy to treat these complications.
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Affiliation(s)
- Ming Xiao
- Center of Hepatopancreatobiliary Diseases
| | - Aijun Sun
- Department of Hepatobiliary Surgery, Zhucheng People's Hospital, Zhucheng, China
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Carvalho R, Henriques F, Teixeira S, Coimbra P. Fatal Waterhouse-Friderichsen syndrome in an adult due to serogroup Y Neisseria meningitidis. BMJ Case Rep 2021; 14:14/2/e238670. [PMID: 33541984 PMCID: PMC7868193 DOI: 10.1136/bcr-2020-238670] [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] [Indexed: 02/06/2023] Open
Abstract
Waterhouse-Friderichsen syndrome (WFS), defined as severe adrenal insufficiency due to bilateral adrenal gland haemorrhagic necrosis, occurred in a 59-year-old woman. An underlying serogroup Y Neisseria meningitidis (NM) infection was diagnosed, with a rapid progression to purpura fulminans, disseminated intravascular coagulation and WFS. Intensive treatment including fluid resuscitation, broad-spectrum antibiotic therapy, ventilatory support, platelet and factor replacement were administered. The meningococcaemia in the presence of WFS had a fulminant progression, leading to a fatal outcome within 24 hours of symptom onset. This case details the diagnosis and management challenges of the WFS, a rare complication of NM septicaemia, and describes the identification of a NM serogroup that is rare in Portugal in middle-aged patients.
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Affiliation(s)
- Rúben Carvalho
- Department of Infectious Diseases, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
| | - Fernando Henriques
- Department of Intensive Care, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
| | - Sónia Teixeira
- Department of Intensive Care, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
| | - Paulo Coimbra
- Department of Intensive Care, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
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167
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Thau A, Saffren B, Zakrzewski H, Anderst JD, Carpenter SL, Levin A. Retinal hemorrhage and bleeding disorders in children: A review. CHILD ABUSE & NEGLECT 2021; 112:104901. [PMID: 33401159 DOI: 10.1016/j.chiabu.2020.104901] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/27/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Retinal hemorrhages (RH) are a common manifestation of abusive head trauma (AHT) resulting from acceleration-deceleration injury with or without blunt impact. Evaluation of a child with RH requires careful consideration of these differential diagnoses. The extent to which coagulopathy alone can cause RH would be useful to understand as coagulopathy may accompany AHT. OBJECTIVE In this systematic review, we sought to identify whether coagulopathies have been reported with RH similar to those of AHT. METHODS We performed a literature search for ocular manifestations of bleeding disorders in children less than 18 years old. We included clotting factor deficiencies, vitamin K deficiency, platelet function abnormalities, thrombocytopenia, disseminated intravascular coagulation (DIC), and trauma induced coagulopathy (TIC). We included only pediatric reports of intraocular bleeding or documented eye examinations that indicated no hemorrhages. We then re-examined cases for ocular and systemic findings that could potentially mimic abuse. RESULTS Our initial search yielded 816 results. Sixty-one articles met our inclusion criteria. Of these, there were 32 children within the AHT age range (less than 5 years old) who had RH and concomitant coagulopathy. Only 5 cases might potentially be confused for abuse. Of these, no classic characteristics of RH from abuse such as retinoschisis or retinal folds were found. Systemic features were inconsistent with AHT. CONCLUSIONS The presence of coagulopathy alone does not rule out the possibility that the child has been abused. Coagulopathy alone has not been reported as an etiology of RH that are consistent with AHT, especially when other findings are present.
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Affiliation(s)
- Avrey Thau
- Thomas Jefferson University, Philadelphia, PA, USA
| | - Brooke Saffren
- Philadelphia College of Osteopathic Medicine, Philadelphia, PA, USA
| | - Helena Zakrzewski
- Department of Experimental Surgery, McGill University, Montreal, QC, Canada
| | - James D Anderst
- Division of Child Adversity and Resilience, Children's Mercy Hospital, Kansas City, MO, USA
| | - Shannon L Carpenter
- Department of Hematology, Oncology, and Bone Marrow Transplantation, Children's Mercy Hospital, Kansas City, MO, USA
| | - Alex Levin
- Flaum Eye Institute and Golisano Children's Hospital, University of Rochester, New York, USA.
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168
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Zheng R, Zhou J, Song B, Zheng X, Zhong M, Jiang L, Pan C, Zhang W, Xia J, Chen N, Wu W, Zhang D, Xi Y, Lin Z, Pan Y, Liu X, Li S, Xu Y, Li Y, Tan H, Zhong N, Luo X, Sang L. COVID-19-associated coagulopathy: thromboembolism prophylaxis and poor prognosis in ICU. Exp Hematol Oncol 2021; 10:6. [PMID: 33522958 PMCID: PMC7848868 DOI: 10.1186/s40164-021-00202-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/21/2021] [Indexed: 01/30/2023] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) is associated with coagulation abnormalities which are indicators of higher mortality especially in severe cases. Methods We studied patients with proven COVID-19 disease in the intensive care unit of Jinyintan Hospital, Wuhan, China from 30 to 2019 to 31 March 2020. Results Of 180 patients, 89 (49.44 %) had died, 85 (47.22 %) had been discharged alive, and 6 (3.33 %) were still hospitalised by the end of data collection. A D-dimer concentration of > 0.5 mg/L on admission was significantly associated with 30 day mortality, and a D-dimer concentration of > 5 mg/L was found in a much higher proportion of non-survivors than survivors. Sepsis-induced coagulopathy (SIC) and disseminated intravascular coagulation (DIC) scoring systems were dichotomised as < 4 or ≥ 4 and < 5 or ≥ 5, respectively, and the mortality rate was significantly different between the two stratifications in both scoring systems. Enoxaparin was administered to 68 (37.78 %) patients for thromboembolic prophylaxis, and stratification by the D-dimer concentration and DIC score confirmed lower mortality in patients who received enoxaparin when the D-dimer concentration was > 2 than < 2 mg/L or DIC score was ≥ 5 than < 5. A low platelet count and low serum calcium concentration were also related to mortality. Conclusions A D-dimer concentration of > 0.5 mg/L on admission is a risk factor for severe disease. A SIC score of > 4 and DIC score of > 5 may be used to predict mortality. Thromboembolic prophylaxis can reduce mortality only in patients with a D-dimer concentration of > 2 mg/L or DIC score of ≥ 5.
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Affiliation(s)
- Runhui Zheng
- Hematology Department, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Jing Zhou
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Bin Song
- Department of Tuberculosis and Respiratory Disease, Wuhan Jinyintan Hospital, 430023, Wuhan, China
| | - Xia Zheng
- Department of Critical Care Medicine, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Ming Zhong
- Department of Critical Care Medicine, Zhongshan Hospital Fudan University, Shanghai, China
| | - Li Jiang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Chun Pan
- Department of Critical Care Medicine, Zhongda Hospital, Southeast University, 210009, Nanjing, China
| | - Wei Zhang
- Emergency Department, The 900th Hospital of Joint Service Corps of Chinese PLA, 350025, FuZhou, China
| | - Jiaan Xia
- Department of Tuberculosis and Respiratory Disease, Wuhan Jinyintan Hospital, 430023, Wuhan, China
| | - Nanshan Chen
- Department of Respiratory and Critical Care Medicine, Wuhan Jinyintan Hospital, Wuhan, China
| | - Wenjuan Wu
- Department of Critical Care Medicine, Wuhan Jinyintan Hospital, Wuhan, China
| | - Dingyu Zhang
- Research Center for Translational Medicine, Wuhan Jinyintan Hospital, Wuhan, China.,Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, 430023, Wuhan, Hubei, China
| | - Yin Xi
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Zhimin Lin
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Ying Pan
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Xiaoqing Liu
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Shiyue Li
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Yuanda Xu
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Yimin Li
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Huo Tan
- Hematology Department, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China.
| | - Nanshan Zhong
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China.
| | - Xiaodan Luo
- Hematology Department, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China.
| | - Ling Sang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China.
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169
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Risk Management and Treatment of Coagulation Disorders Related to COVID-19 Infection. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031268. [PMID: 33572570 PMCID: PMC7908596 DOI: 10.3390/ijerph18031268] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/21/2021] [Accepted: 01/27/2021] [Indexed: 01/08/2023]
Abstract
Coronavirus disease 2019 (COVID-19) is an emerging infectious disease. Bilateral pneumonia, acute respiratory failure, systemic inflammation, endothelial dysfunction and coagulation activation are key features of severe COVID-19. Fibrinogen and D-dimer levels are typically increased. The risk for venous thromboembolism is markedly increased, especially in patients in the intensive care unit despite prophylactic dose anticoagulation. Pulmonary microvascular thrombosis has also been described and the risk for arterial thrombotic diseases also appears to be increased while bleeding is less common than thrombosis, but it can occur. Evaluation for venous thromboembolism may be challenging because symptoms of pulmonary embolism overlap with COVID-19, and imaging studies may not be feasible in all cases. The threshold for evaluation or diagnosis of thromboembolism should be low given the high frequency of these events. Management and treatment are new challenges due to the paucity of high-quality evidence regarding efficacy and safety of different approaches to prevent or treat thromboembolic complications of the disease. All inpatients should receive thromboprophylaxis unless contraindicated. Some institutional protocols provide more aggressive anticoagulation with intermediate or even therapeutic dose anticoagulation for COVID-19 patients admitted to ICU. Therapeutic dose anticoagulation is always appropriate to treat deep venous thrombosis or pulmonary embolism, unless contraindicated. This article reviews evaluation and management of coagulation abnormalities in individuals with COVID-19.
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170
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Tazi Mezalek Z. [COVID-19: Coagulopathy and thrombosis]. Rev Med Interne 2021; 42:93-100. [PMID: 33509669 PMCID: PMC7833452 DOI: 10.1016/j.revmed.2020.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/12/2020] [Accepted: 12/29/2020] [Indexed: 12/15/2022]
Abstract
Le virus SARS-CoV-2 a provoqué une pandémie mondiale en quelques semaines, causant l’infection de plus de 20 millions de sujets. Près du 15 % des patients atteints de la maladie à coronavirus 2019 (COVID-19) et plus de 70 % des formes graves présentent des anomalies de coagulation. Cet état « d’hypercoagulabilité » incluant essentiellement une élévation marquée des D-Dimères est associé à un risque accru de décès. En outre, une proportion substantielle de patients atteints de COVID-19 sévère développent des complications thromboemboliques veineuses, incidence d’autant plus élevée que les patients sont admis en unités de soins intensifs ou en réanimation. Une meilleure compréhension de la physiopathologie de la COVID-19, en particulier des troubles de l’hémostase, permettra d’adapter des stratégies thérapeutiques, notamment anti-thrombotiques. La mise en évidence de ces anomalies doit être associée à une évaluation rigoureuse du risque thrombotique permettant la mise en place d’une stratégie anti-thrombotique adaptée. Nous passons en revue les caractéristiques des données biologiques de la « coagulopathie » associée à la COVID-19, l’incidence des événements thromboemboliques et leurs spécificités ainsi que les interventions thérapeutiques potentielles.
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Affiliation(s)
- Z Tazi Mezalek
- Service médecine interne - hématologie clinique, hôpital Ibn Sina, Rabat, Maroc; Faculté de médecine et de pharmacie, université Mohammed VI, Rabat, Maroc.
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171
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Siddiqui SN, Jayasekhar R, Tshering S, Jugjali R, Shanmugavadivel D, Jawed A, Rahman MM. A unique tale of COVID-19 induced concomitant overt disseminated intravascular coagulation and acute bilateral pulmonary embolism. Int J Infect Dis 2021; 104:568-571. [PMID: 33486013 PMCID: PMC7825839 DOI: 10.1016/j.ijid.2021.01.040] [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] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/07/2021] [Accepted: 01/17/2021] [Indexed: 12/24/2022] Open
Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2), a novel coronavirus, originated as an epidemic respiratory illness in Wuhan, China. COVID-19 eventually spread to almost all countries and has now been declared a global pandemic disease by the World Health Organisation. A plethora of research has explored the dynamics of different clinical entities related to SARS-COV-2, in particular, COVID-19 associated coagulopathy. A large scale of patients have been reported to have developed pulmonary embolism without any other standard triggers or risk factors, leading to speculation that COVID-19 is an independent risk factor for venous thromboembolism. In addition to the development of thromboembolic complications such as pulmonary embolism, COVID-19 has also been reported to have triggered disseminated intravascular coagulation (DIC); however, it is unclear whether pulmonary embolism was due to COVID-19-induced thrombosis or a result of coagulopathy secondary to DIC. We describe a unique case of a COVID-19 associated coagulopathy in a patient with confirmed pulmonary embolism along with an overt DIC. Following diagnosis, the challenge was to identify the appropriate treatment modality for this unique situation. The patient was treated with anticoagulants and steroids along with blood products. The patient’s condition markedly improved and was clinically stable on discharge.
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172
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Tomo S, Kumar KP, Roy D, Sankanagoudar S, Purohit P, Yadav D, Banerjee M, Sharma P, Misra S. Complement activation and coagulopathy - an ominous duo in COVID19. Expert Rev Hematol 2021; 14:155-173. [PMID: 33480807 DOI: 10.1080/17474086.2021.1875813] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION COVID-19 has similarities to the Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS) outbreaks, as severe patients and non-survivors have frequently shown abnormal coagulation profiles. Immune-mediated pathology is a key player in this disease; hence, the role of the complement system needs assessment. The complement system and the coagulation cascade share an intricate network, where multiple mediators maintain a balance between both pathways. Coagulopathy in COVID-19, showing mixed features of complement-mediated and consumption coagulopathy, creates a dilemma in diagnosis and management. AREAS COVERED Pathophysiology of coagulopathy in COVID-19 patients, with a particular focus on D-dimer and its role in predicting the severity of COVID-19 has been discussed. A comprehensive search of the medical literature on PubMed was done till May 30th, 2020 with the keywords 'COVID-19', 'SARS-CoV-2', 'Coronavirus', 'Coagulopathy', and 'D-dimer'. Twenty-two studies were taken for weighted pooled analysis of D-dimer. EXPERT OPINION A tailored anticoagulant regimen, including intensification of standard prophylactic regimens with low-molecular-weight heparin is advisable for COVID-19 patients. Atypical manifestations and varying D-dimer levels seen in different populations bring forth the futility of uniform recommendations for anticoagulant therapy. Further, direct thrombin inhibitors and platelet inhibitors in a patient-specific manner should also be considered.
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Affiliation(s)
- Sojit Tomo
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Kiran Pvsn Kumar
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Dipayan Roy
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | | | - Purvi Purohit
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Dharamveer Yadav
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Mithu Banerjee
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Praveen Sharma
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Sanjeev Misra
- Department of Surgical Oncology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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173
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Alhenc-Gelas M, Cabel L, Berger F, Delaloge S, Frenel JS, Levy C, Firmin N, Ladoire S, Desmoulins I, Heudel PE, Dalenc F, Loirat D, Dubot C, Vuagnat P, Deluche E, Mokdad-Adi M, Patsouris A, Annic J, Djerroudi L, Lavigne M, Pierga JY, Coppo P, Bidard FC. Characteristics and outcome of breast cancer-related microangiopathic haemolytic anaemia: a multicentre study. Breast Cancer Res 2021; 23:9. [PMID: 33468209 PMCID: PMC7814553 DOI: 10.1186/s13058-021-01386-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/01/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Cancer-related microangiopathic haemolytic anaemia (MAHA) is a rare but life-threatening paraneoplastic syndrome. Only single cases or small series have been reported to date. We set up a retrospective multicentre study focusing on breast cancer-related MAHA. METHODS Main inclusion criteria were known diagnosis of breast cancer, presence of schistocytes and either low haptoglobin or cytopenia and absence of any causes of MAHA other than breast cancer, including gemcitabine- or bevacizumab-based treatment. Patient characteristics, treatments and outcome were retrieved from digital medical records. RESULTS Individual data from 54 patients with breast cancer-related MAHA were obtained from 7 centres. Twenty-three (44%) patients had a breast tumour with lobular features, and most primary tumours were low grade (grade I/II, N = 39, 75%). ER+/HER2-, HER2+ and triple-negative phenotypes accounted for N = 33 (69%), N = 7 (15%) and N = 8 (17%) cases, respectively. All patients had stage IV cancer at the time of MAHA diagnosis. Median overall survival (OS) was 28 days (range 0-1035; Q1:10, Q3:186). Independent prognostic factors for early death (≤ 28 days) were PS > 2 (OR = 7.0 [1.6; 31.8]), elevated bilirubin (OR = 6.9 [1.1; 42.6]), haemoglobin < 8.0 g/dL (OR = 3.7 [0.9; 16.7]) and prothrombin time < 50% (OR = 9.1 [1.2; 50.0]). A score to predict early death displayed a sensitivity of 86% (95% CI [0.67; 0.96]), a specificity of 73% (95% CI [0.52; 0.88]) and an area under the curve of 0.90 (95% CI [0.83; 0.97]). CONCLUSIONS Breast cancer-related MAHA appears to be a new feature of invasive lobular breast carcinoma. Prognostic factors and scores may guide clinical decision-making in this serious but not always fatal condition.
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Affiliation(s)
- Marion Alhenc-Gelas
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France
| | - Luc Cabel
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France.,UVSQ, Université Paris-Saclay, 35 rue Dailly, Saint Cloud, 92210, France
| | | | - Suzette Delaloge
- Department of Cancer Medicine, Institut Gustave Roussy, Villejuif, France
| | - Jean-Sebastien Frenel
- Department of Medical Oncology, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | - Christelle Levy
- Department of Medical Oncology, Centre François Baclesse, Caen, France
| | - Nelly Firmin
- Department of Medical Oncology, Institut du Cancer de Montpellier, Institut de cancérologie de Montpellier INSERM U1194, Montpellier, France
| | - Sylvain Ladoire
- Department of Medical Oncology, Centre Georges-François Leclerc, Dijon, France
| | | | | | - Florence Dalenc
- Department of Medical Oncology, Institut Claudius Regaud, Institut Universitaire du Cancer de Toulouse-Oncopole (IUCT-Oncopole), Toulouse, France
| | - Delphine Loirat
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France
| | - Coraline Dubot
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France
| | - Perrine Vuagnat
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France
| | - Elise Deluche
- Department of Cancer Medicine, Institut Gustave Roussy, Villejuif, France
| | - Meriem Mokdad-Adi
- Department of Cancer Medicine, Institut Gustave Roussy, Villejuif, France
| | - Anne Patsouris
- Department of Medical Oncology, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | - Josselin Annic
- Department of Medical Oncology, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | | | | | - Jean-Yves Pierga
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France.,Université de Paris, Paris, France
| | - Paul Coppo
- Reference Center for Thrombotic Microangiopathies (CNR-MAT), AP-HP.SU, INSERM UMRS, 1138, Paris, France.,Sorbonne University, Paris, France
| | - Francois-Clement Bidard
- Department of Medical Oncology, Institut Curie, Paris and Saint Cloud, France. .,UVSQ, Université Paris-Saclay, 35 rue Dailly, Saint Cloud, 92210, France.
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174
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Rahi MS, Jindal V, Reyes SP, Gunasekaran K, Gupta R, Jaiyesimi I. Hematologic disorders associated with COVID-19: a review. Ann Hematol 2021; 100:309-320. [PMID: 33415422 PMCID: PMC7789889 DOI: 10.1007/s00277-020-04366-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/30/2020] [Indexed: 01/08/2023]
Abstract
Coronavirus disease 2019 is caused by severe acute respiratory syndrome coronavirus 2. Primarily an infection of the lower respiratory tract, it is now well known to cause multisystem abnormalities. Hematologic manifestations constitute a significant area of concern. Severe acute respiratory syndrome coronavirus 2 infects monocytes and endothelial cells leading to a complex downstream cascade, cytokine storm, and eventual intravascular thrombosis. Coronavirus disease 2019 causes lymphopenia, neutrophilia, and thrombocytopenia. Prophylactic anticoagulation is vital in patients with coronavirus disease 2019, as its effect on the coagulation system is associated with significant morbidity and mortality. The disease can cause both arterial and venous thromboses, especially pulmonary embolism and pulmonary microthrombi. A high index of suspicion is indispensable in recognizing these complications, and timely institution of therapeutic anticoagulation is vital in treating them. Virus-induced disseminated intravascular coagulation is uncommon but shares some similarities to sepsis-induced disseminated intravascular coagulation. Marked elevations in hematologic biomarkers such as lactate dehydrogenase, D-dimer, ferritin, and C-reactive protein are associated with worse outcomes. Understanding the pathophysiology and recognizing factors associated with poor prognosis are crucial in improving patient outcomes with coronavirus disease 2019.
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Affiliation(s)
- Mandeep Singh Rahi
- Division of Pulmonary Diseases and Critical Care Medicine, Yale-New Haven Health Bridgeport Hospital, 267 Grant Street, Bridgeport, CT, 06610, USA.
| | - Vishal Jindal
- Division of Hematology and Oncology, William Beaumont Hospital, Oakland University, Royal Oak, MI, USA
| | - Sandra-Patrucco Reyes
- Department of Internal Medicine, Yale-New Haven Health Bridgeport Hospital, Bridgeport, CT, USA
| | - Kulothungan Gunasekaran
- Division of Pulmonary Diseases and Critical Care Medicine, Yale-New Haven Health Bridgeport Hospital, 267 Grant Street, Bridgeport, CT, 06610, USA
| | - Ruby Gupta
- Division of Hematology and Oncology, William Beaumont Hospital, Oakland University, Royal Oak, MI, USA
| | - Ishmael Jaiyesimi
- Division of Hematology and Oncology, William Beaumont Hospital, Oakland University, Royal Oak, MI, USA
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175
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Recent advances in the research and management of sepsis-associated DIC. Int J Hematol 2021; 113:24-33. [PMID: 33386597 PMCID: PMC7775827 DOI: 10.1007/s12185-020-03053-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/25/2020] [Accepted: 11/29/2020] [Indexed: 12/20/2022]
Abstract
Disseminated intravascular coagulation (DIC) is a common and life-threatening complication in sepsis. Sepsis-associated DIC is recognized as the systemic activation in coagulation with suppressed fibrinolysis that leads to organ dysfunction in combination with systemic intravascular inflammation. In this process, thrombin contributes a key role in connecting both coagulation and inflammation. Endothelial injury, a result of sepsis, causes DIC due to the effect of multiple activated factors that include neutrophils, platelets, and damage-associated molecular patterns. Recent advances in the understanding of pathophysiology have made it possible to diagnose sepsis-associated DIC at earlier timing with better accuracy. However, progress in the treatment is still limited, and new therapeutics for sepsis-associated DIC are needed.
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176
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Lisman T, Arefaine B, Adelmeijer J, Zamalloa A, Corcoran E, Smith JG, Bernal W, Patel VC. Global hemostatic status in patients with acute-on-chronic liver failure and septics without underlying liver disease. J Thromb Haemost 2021; 19:85-95. [PMID: 33006808 PMCID: PMC7839476 DOI: 10.1111/jth.15112] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/28/2020] [Accepted: 09/22/2020] [Indexed: 12/12/2022]
Abstract
Essentials Liver diseases are associated with profound hemostatic changes proportional to severity of illness. Hemostatic changes in acute-on-chronic liver failure (ACLF) may in part reflect critical illness. Hemostatic changes in ACLF partly overlap with those in sepsis, with rebalanced hemostasis in both. Patients with sepsis had hyperfibrinogenemia, associated with a thrombogenic clot structure. ABSTRACT: Background Even the sickest patients with chronic liver disease (CLD), such as those with acute-on-chronic liver failure (ACLF) remain in hemostatic balance due to a concomitant decline in pro- and antihemostatic factors. Objectives We aimed to study whether the hemostatic status in ACLF is merely an exaggeration from the status in patients with compensated and acutely decompensated cirrhosis, or whether sepsis-associated hemostatic changes contribute. Methods We performed extensive hemostatic profiling in 31 adult patients with ACLF, 20 patients with sepsis without underlying CLD, and 40 healthy controls. Results We found similarly elevated plasma levels of the platelet adhesive protein von Willebrand factor (VWF) and decreased levels of the VWF-regulating protease ADAMTS13 in both groups compared to healthy controls. In vivo markers of activation of coagulation (thrombin-antithrombin III, D-dimer) were similarly elevated in both groups compared to controls, but ex vivo thrombin-generating capacity was similar between patients and controls, despite a much more profound international normalized ratio elevation in ACLF. Plasma fibrinogen levels were much higher in septics, which was accompanied by a decreased ex vivo clot permeability and an increase in ex vivo resistance to clot lysis. All hemostatic parameters were remarkably stable over the first 10 days after admission. Conclusions We have found hemostatic changes in ACLF to partially overlap with that of patients with sepsis, and evidence of preserved hemostatic capacity in both patient groups. The notable difference was a profound hyperfibrinogenemia, associated with a thrombogenic clot structure and a marked ex vivo resistance to fibrinolysis in patients with sepsis.
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Affiliation(s)
- Ton Lisman
- Surgical Research Laboratory and Section of Hepatobiliary Surgery and Liver TransplantationDepartment of SurgeryUniversity of GroningenUniversity Medical Center GroningenGroningenthe Netherlands
| | | | - Jelle Adelmeijer
- Surgical Research Laboratory and Section of Hepatobiliary Surgery and Liver TransplantationDepartment of SurgeryUniversity of GroningenUniversity Medical Center GroningenGroningenthe Netherlands
| | - Ane Zamalloa
- Institute of Liver StudiesKing’s College Hospital NHS Foundation TrustLondonUK
| | - Eleanor Corcoran
- Department of Critical CareKing’s College Hospital NHS Foundation TrustLondonUK
| | - John G. Smith
- Department of Critical CareKing’s College Hospital NHS Foundation TrustLondonUK
| | - William Bernal
- Institute of Liver StudiesKing’s College Hospital NHS Foundation TrustLondonUK
| | - Vishal C. Patel
- Institute of Hepatology LondonFoundation for Liver ResearchLondonUK
- Institute of Liver StudiesKing’s College Hospital NHS Foundation TrustLondonUK
- School of Immunology and Microbial SciencesFaculty of Life Sciences and MedicineKing’s College LondonLondonUK
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177
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Gao TY, Yang WC, Zhou FH, Song Q. Analysis of D-dimer cut-off values for overt DIC diagnosis in exertional heat illness. Medicine (Baltimore) 2020; 99:e23831. [PMID: 33350770 PMCID: PMC7769303 DOI: 10.1097/md.0000000000023831] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/20/2020] [Indexed: 01/26/2023] Open
Abstract
The International Society on Thrombosis and Haemostasis (ISTH) scoring system has been used for diagnosing overt disseminated intravascular coagulation (DIC). However, the cut-off points of fibrin-related markers remain unclear. The ability of the ISTH DIC score and Multiple Organ Dysfunction (MODS) score to predict mortality in cases of exertional heat illness (EHI) was tested. In the process, 3 different D-dimer cut-off values for diagnosing overt DIC were evaluated.Data were obtained on the first day of hospitalization for 76 patients with EHI. The DIC score was calculated according to the ISTH scoring system using 3 D-dimer cut-off values.In predicting mortality, methods 1 and 2 had the same sensitivity and specificity, which were 85% and 73.2%, respectively. The sensitivity for method 3 was 70%. Furthermore, the specificity of the DIC score for method 3 was 89%, which was higher than that of the other 2 methods. The correlation coefficients of the DIC and MODS scores of these 3 methods were 0.757, 0.748, and 0.756, respectively. For the prediction of mortality, the area under the receiver operating characteristic (ROC) curve for the DIC scores of these 3 methods was 0.838, 0.842, and 0.85, respectively. Furthermore, the area under the ROC curve of the MODS score was 0.927.The DIC score had a certain predictive power of a poor outcome of EHI patients, but this was not better than the MODS score. The present data may serve as a reference in selecting the appropriate D-dimer cut-off point for the ISTH DIC score.
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Affiliation(s)
- Tie-Ying Gao
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital
- Department of Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Wen-Chao Yang
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital
| | - Fei-Hu Zhou
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital
| | - Qing Song
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital
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178
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Han H, Hensch L, Hui SKR, Teruya J. Evaluation and Management of Coagulopathies and Thrombophilias in Pediatric Patients. Clin Lab Med 2020; 41:83-100. [PMID: 33494887 DOI: 10.1016/j.cll.2020.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The diagnosis of coagulopathy or thrombophilia in pediatric patients can be challenging. Congenital coagulopathies often present in the pediatric period and require appropriate work-up for diagnosis and ongoing management. Acquired coagulopathies of childhood are frequently encountered in hospitalized children and warrant appropriate coagulation testing for goal-directed therapy. The incidence of thrombosis is increasing in pediatric patients. After identifying the presence of thrombus, acute management includes initiating therapeutic anticoagulation. Choice of anticoagulant depends on patient's clinical status, along with availability of the anticoagulant. Thrombophilia evaluation is performed when children present with spontaneous thrombosis. Thrombophilia tests are inaccurate during acute illness.
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Affiliation(s)
- HyoJeong Han
- Pathology & Immunology, Baylor College of Medicine, 6621 Fannin Street, Houston, TX 77030, USA
| | - Lisa Hensch
- Pathology & Immunology, Baylor College of Medicine, 6621 Fannin Street, Houston, TX 77030, USA
| | - Shiu-Ki Rocky Hui
- Pathology & Immunology, Baylor College of Medicine, 6621 Fannin Street, Houston, TX 77030, USA
| | - Jun Teruya
- Pathology & Immunology, Baylor College of Medicine, 6621 Fannin Street, Houston, TX 77030, USA.
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179
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Sharma M, Surani S. Revisiting One of the Dreaded Outcomes of the Current Pandemic: Pulmonary Embolism in COVID-19. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E670. [PMID: 33287199 PMCID: PMC7761739 DOI: 10.3390/medicina56120670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 02/05/2023]
Abstract
Pulmonary embolism (PE) is a commonly encountered clinical entity in patients with coronavirus disease 2019 (COVID-19). Up to 1/3 of patients have been found to have PE in the setting of COVID-19. Given the novelty of the virus causing this pandemic, it has not been easy to address diagnostic and management issues in PE. Ongoing research and publications of the scientific literature have helped in dealing with COVID-19 lately and this applies to PE as well. In this article, we attempt to succinctly yet comprehensively discuss PE in patients with COVID-19 with a review of the prevailing literature.
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Affiliation(s)
- Munish Sharma
- Corpus Christi Medical Center, Department of Pulmonary Medicine, Corpus Christi, TX 78412, USA;
| | - Salim Surani
- Department of Medicine, Texas A&M University, College Station, TX 77843, USA
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180
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El Beltagi AH, Vattoth S, Abdelhady M, Ahmed I, Paksoy Y, Abou Kamar M, Alsoub H, Almaslamani M, Alkhal AL, Own A, Elsotouhy A. Spectrum of neuroimaging findings in COVID-19. Br J Radiol 2020; 94:20200812. [PMID: 33305996 PMCID: PMC7774681 DOI: 10.1259/bjr.20200812] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
An outbreak of corona virus disease 2019 (COVID-19) began in China in December 2019, and rapidly spread to become a worldwide pandemic. Neurological complications encountered in hospitalized patients include acute arterial ischemic cerebrovascular stroke, cerebral venous thrombosis, critical illness-associated cerebral microbleeds, hypertensive hemorrhagic posterior reversible encephalopathy, meningoencephalitis/flare up of infections, flare up of multiple sclerosis, acute disseminated encephalomyelitis, cerebral hemodynamic/hypoxic changes such as watershed ischemic changes and hypoxic ischemic encephalopathy, and spine manifestations of Guillain Barre syndrome and viral myelitis. The purpose of our study is to illustrate the different neuroimaging features in critically ill hospitalized COVID-19 positive patients in the State of Qatar.
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Affiliation(s)
- Ahmed H El Beltagi
- Neuroradiology Department, Neuroscience Institute, Hamad Medical Corporation, Doha, Qatar.,Clinical Imaging, Weill Cornell Medicine University - Qatar, Doha, Qatar
| | - Surjith Vattoth
- University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Mohamed Abdelhady
- Neuroradiology Department, Neuroscience Institute, Hamad Medical Corporation, Doha, Qatar
| | - Islam Ahmed
- Neuroradiology Department, Neuroscience Institute, Hamad Medical Corporation, Doha, Qatar
| | - Yahya Paksoy
- Neuroradiology Department, Neuroscience Institute, Hamad Medical Corporation, Doha, Qatar
| | - Mohamed Abou Kamar
- Infectious and Communicable Diseases Department, Hamad Medical Corporation, Doha, Qatar
| | - Hussam Alsoub
- Infectious and Communicable Diseases Department, Hamad Medical Corporation, Doha, Qatar
| | - Muna Almaslamani
- Infectious and Communicable Diseases Department, Hamad Medical Corporation, Doha, Qatar
| | - Abdul Latif Alkhal
- Infectious and Communicable Diseases Department, Hamad Medical Corporation, Doha, Qatar
| | - Ahmed Own
- Neuroradiology Department, Neuroscience Institute, Hamad Medical Corporation, Doha, Qatar
| | - Ahmed Elsotouhy
- Neuroradiology Department, Neuroscience Institute, Hamad Medical Corporation, Doha, Qatar.,Clinical Imaging, Weill Cornell Medicine University - Qatar, Doha, Qatar
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181
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Porembskaya O, Lobastov K, Pashovkina O, Tsaplin S, Schastlivtsev I, Zhuravlev S, Laberko L, Rodoman G, Kravchuk V, Skvortsov A, Saiganov S. Thrombosis of pulmonary vasculature despite anticoagulation and thrombolysis: The findings from seven autopsies. THROMBOSIS UPDATE 2020; 1:100017. [PMID: 38620510 PMCID: PMC7568050 DOI: 10.1016/j.tru.2020.100017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/01/2020] [Accepted: 10/15/2020] [Indexed: 12/21/2022] Open
Abstract
Background Venous thromboembolism (VTE) with the prevalence of pulmonary microcirculatory thrombosis is considered a common complication of novel coronavirus disease (COVID-19) that develops despite anticoagulation. Methods The clinical course of the disease and the autopsy findings of seven deceased patients with verified COVID-19 were analyzed. The chest computed tomography (CT) scan was routinely performed while CT pulmonary angiography and a duplex ultrasound scan (DUS) of the lower limbs were used in cases of suspected VTE. The VTE prophylaxis was administered to all patients with intermediate or therapeutic doses of low-molecular-weight heparin. The histological examination of the lung tissue and other organs was performed with particular attention paid to the pulmonary vasculature. Results Venous thromboembolism, including deep vein thrombosis in one patient and pulmonary artery thrombosis in two patients, was confirmed by imaging tests despite anticoagulation. Systemic thrombolysis was performed in two patients with putative and confirmed pulmonary embolism. An autopsy revealed the signs of acute respiratory distress syndrome in all seven patients. Abnormalities of lung vessels were found in all cases and were represented by dystrophy and necrosis in the endothelium and muscle fibers, and by infiltration by plasmatic cells, neutrophils, and lymphocytes. Multiple clots of variable maturity were observed. All those changes developed despite anticoagulation and were preserved after systemic thrombolysis. Conclusion Inflammatory and prothrombotic changes in the arterial wall in parallel with the lack of lung perfusion may cause diffuse arterial thrombosis in the lungs. This background may be responsible for the low response to systemic anticoagulation and thrombolysis in severe forms of COVID-19.
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Affiliation(s)
- O Porembskaya
- Mechnikov North-Western State Medical University, Saint Petersburg, Russia
- Institute of Experimental Medicine, Saint Petersburg, Russia
| | - K Lobastov
- Pirogov Russian National Research Medical University, Moscow, Russia
- Moscow City Hospital No.24, Moscow, Russia
| | - O Pashovkina
- Clinical Hospital No.1 of the President's Administration of Russian Federation, Moscow, Russia
| | - S Tsaplin
- Pirogov Russian National Research Medical University, Moscow, Russia
- Clinical Hospital No.1 of the President's Administration of Russian Federation, Moscow, Russia
| | - I Schastlivtsev
- Pirogov Russian National Research Medical University, Moscow, Russia
- Clinical Hospital No.1 of the President's Administration of Russian Federation, Moscow, Russia
| | - S Zhuravlev
- Clinical Hospital No.1 of the President's Administration of Russian Federation, Moscow, Russia
| | - L Laberko
- Pirogov Russian National Research Medical University, Moscow, Russia
- Moscow City Hospital No.24, Moscow, Russia
| | - G Rodoman
- Pirogov Russian National Research Medical University, Moscow, Russia
- Moscow City Hospital No.24, Moscow, Russia
| | - V Kravchuk
- Mechnikov North-Western State Medical University, Saint Petersburg, Russia
| | - A Skvortsov
- Mechnikov North-Western State Medical University, Saint Petersburg, Russia
| | - S Saiganov
- Mechnikov North-Western State Medical University, Saint Petersburg, Russia
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182
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Gupta NA, Lien C, Iv M. Critical illness-associated cerebral microbleeds in severe COVID-19 infection. Clin Imaging 2020; 68:239-241. [PMID: 32911311 PMCID: PMC7832150 DOI: 10.1016/j.clinimag.2020.08.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/06/2020] [Accepted: 08/26/2020] [Indexed: 01/19/2023]
Abstract
Neurologic complications of COVID-19 infection have been recently described and include dizziness, headache, loss of taste and smell, stroke, and encephalopathy. Brain MRI in these patients have revealed various findings including ischemia, hemorrhage, inflammation, and demyelination. In this article, we report a case of critical illness-associated cerebral microbleeds identified on MRI in a patient with severe COVID-19 infection and discuss the potential etiologies of these neuroimaging findings.
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Affiliation(s)
- Nidhi Azad Gupta
- Radiology Diagnostic Services, Inc., Manteca, CA, United States of America.
| | - Conway Lien
- Radiology Diagnostic Services, Inc., Manteca, CA, United States of America
| | - Michael Iv
- Department of Radiology, Division of Neuroimaging and Neurointervention, Stanford University, Stanford, CA, United States of America
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183
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Hoechter DJ, Becker-Pennrich A, Langrehr J, Bruegel M, Zwissler B, Schaefer S, Spannagl M, Hinske LC, Zoller M. Higher procoagulatory potential but lower DIC score in COVID-19 ARDS patients compared to non-COVID-19 ARDS patients. Thromb Res 2020; 196:186-192. [PMID: 32891904 PMCID: PMC7441951 DOI: 10.1016/j.thromres.2020.08.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/07/2020] [Accepted: 08/18/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND COVID-19 is a novel viral disease. Severe courses may present as ARDS. Several publications report a high incidence of coagulation abnormalities in these patients. We aimed to compare coagulation and inflammation parameters in patients with ARDS due to SARS-CoV-2 infection versus patients with ARDS due to other causes. METHODS This retrospective study included intubated patients admitted with the diagnosis of ARDS to the ICU at Munich university hospital. 22 patients had confirmed SARS-CoV2-infection (COVID-19 group), 14 patients had bacterial or other viral pneumonia (control group). Demographic, clinical parameters and laboratory tests including coagulation parameters and thromboelastometry were analysed. RESULTS No differences were found in gender ratios, BMI, Horovitz quotients and haemoglobin values. The median SOFA score, serum lactate levels, renal function parameters (creatinine, urea) and all inflammation markers (IL-6, PCT, CRP) were lower in the COVID-19 group (all: p < 0.05). INR (p < 0.001) and antithrombin (p < 0.001) were higher in COVID-19 patients. D-dimer levels (p = 0.004) and consecutively the DIC score (p = 0.003) were lower in this group. In ExTEM®, Time-to-Twenty (TT20) was shorter in the COVID-19 group (p = 0.047), these patients also had higher FibTEM® MCF (p = 0.005). Further, these patients presented with elevated antigen and activity levels of von-Willebrand-Factor (VWF). CONCLUSION COVID-19 patients presented with higher coagulatory potential (shortened global clotting tests, increased viscoelastic and VWF parameters), while DIC scores were lower. An intensified anticoagulation regimen based on an individual risk assessment is advisable to avoid thromboembolic complications.
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Affiliation(s)
- D J Hoechter
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany.
| | - A Becker-Pennrich
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - J Langrehr
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - M Bruegel
- Institute of Laboratory Medicine, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - B Zwissler
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany; Comprehensive Pulmonary Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - S Schaefer
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - M Spannagl
- Department of Transfusion Medicine and Haemostasis, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - L C Hinske
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany; The Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - M Zoller
- Department of Anesthesiology, LMU Klinikum, University Hospital, Ludwig-Maximilians-University, Munich, Germany
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184
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Wang TF, Makar RS, Antic D, Levy JH, Douketis JD, Connors JM, Carrier M, Zwicker JI. Management of hemostatic complications in acute leukemia: Guidance from the SSC of the ISTH. J Thromb Haemost 2020; 18:3174-3183. [PMID: 33433069 PMCID: PMC7909744 DOI: 10.1111/jth.15074] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/17/2020] [Accepted: 08/20/2020] [Indexed: 11/29/2022]
Abstract
Patients with acute leukemia frequently develop thrombocytopenia and hemostatic complications caused by coagulopathy. Coagulopathy complicates the management of these patients and can lead to significant morbidity and mortality. This guidance document aims to review and provide guidance on the management of hemostatic complications in adult patients with acute leukemia, addressing four main issues, including platelet transfusion, disseminated intravascular coagulation, L-asparaginase-related hypofibrinogenemia, and the use of antifibrinolytic agents.
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Affiliation(s)
- Tzu-Fei Wang
- Department of Medicine, University of Ottawa at The Ottawa Hospital and Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Robert S. Makar
- Blood Transfusion Service, Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Darko Antic
- Clinic for Hematology, Clinical Center Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Jerrold H. Levy
- Departments of Anesthesiology, Critical Care, and Surgery, Duke University School of Medicine, Durham, NC, USA
| | | | - Jean M. Connors
- Division of Hematology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Marc Carrier
- Department of Medicine, University of Ottawa at The Ottawa Hospital and Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Jeffrey I. Zwicker
- Division of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
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185
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Patti G, Lio V, Cavallari I, Gragnano F, Riva L, Calabrò P, Di Pasquale G, Pengo V, Rubboli A. Questions and Answers on Practical Thrombotic Issues in SARS-CoV-2 Infection: A Guidance Document from the Italian Working Group on Atherosclerosis, Thrombosis and Vascular Biology. Am J Cardiovasc Drugs 2020; 20:559-570. [PMID: 33145698 PMCID: PMC7609356 DOI: 10.1007/s40256-020-00446-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/01/2020] [Indexed: 12/15/2022]
Abstract
In patients with coronavirus disease 2019 (COVID-19), the prevalence of pre-existing cardiovascular diseases is elevated. Moreover, various features, also including pro-thrombotic status, further predispose these patients to increased risk of ischemic cardiovascular events. Thus, the identification of optimal antithrombotic strategies in terms of the risk-benefit ratio and outcome improvement in this setting is crucial. However, debated issues on antithrombotic therapies in patients with COVID-19 are multiple and relevant. In this article, we provide ten questions and answers on risk stratification and antiplatelet/anticoagulant treatments in patients at risk of/with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection based on the scientific evidence gathered during the pandemic.
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Affiliation(s)
- Giuseppe Patti
- Department of Translational Medicine, "Maggiore della Carità" Hospital, University of Eastern Piedmont, Via Solaroli, 17, 28 100, Novara, Italy.
| | - Veronica Lio
- Department of Translational Medicine, "Maggiore della Carità" Hospital, University of Eastern Piedmont, Via Solaroli, 17, 28 100, Novara, Italy
| | | | - Felice Gragnano
- "Sant'Anna and San Sebastiano" Hospital of Caserta, University of Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Paolo Calabrò
- "Sant'Anna and San Sebastiano" Hospital of Caserta, University of Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Vittorio Pengo
- Campus Biomedico "Pietro d'Abano", University of Padua, Padua, Italy
- Fondazione Arianna" On Anticoagulation, Bologna, Italy
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186
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Role of Thromboelastography as an Early Predictor of Disseminated Intravascular Coagulation in Patients with Septic Shock. J Clin Med 2020; 9:jcm9123883. [PMID: 33260354 PMCID: PMC7760761 DOI: 10.3390/jcm9123883] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 02/03/2023] Open
Abstract
(1) Background: The currently proposed criteria for diagnosing overt disseminated intravascular coagulation (DIC) are not suitable for early detection of DIC. Thromboelastography (TEG) rapidly provides a comprehensive assessment of the entire coagulation process and is helpful as a guide for correcting consumptive coagulopathy in sepsis-induced DIC. This study aimed to investigate the role of TEG in the prediction of DIC in patients with septic shock. (2) Methods: TEG was conducted prospectively in 1294 patients with septic shock at the emergency department (ED) between January 2016 and December 2019. After exclusion of 405 patients with “do not attempt resuscitation” orders, those refusing enrollment, and those developing septic shock after ED presentation, 889 patients were included. DIC was defined as an International Society on Thrombosis and Hemostasis score ≥ 5 points within 24 h. (3) Results: Of the 889 patients with septic shock (mean age 65.6 ± 12.7 years, 58.6% male), 158 (17.8%) developed DIC. TEG values, except lysis after 30 min, were significantly different between the DIC and non-DIC groups. Among the TEG values, the maximal amplitude (MA) had the highest discriminating power for DIC, with an area under the curve of 0.814. An MA < 60 indicated DIC with 79% sensitivity, 73% specificity, and 94% negative predictive value. Based on multivariable analysis, MA < 60 was an independent predictor of DIC (odds ratio 5.616 (95% confidence interval: 3.213–9.818)). (4) Conclusions: In patients with septic shock, the MA value in TEG could be a valuable tool for early prediction of DIC.
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187
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Duncker D, Dahme T, Deisenhofer I, Hillmann HAK, Kantenwein V, Müller-Leisse J, Palacios D, Pott A, Reents T, Schmitt J, Veltmann C, Zormpas C, Johnson V. [It's all over! : Complications in the EP lab and their solutions]. Herzschrittmacherther Elektrophysiol 2020; 31:401-413. [PMID: 32880705 DOI: 10.1007/s00399-020-00716-5] [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] [Indexed: 01/16/2023]
Abstract
In cardiac electrophysiology, invasive procedures like catheter ablations or device implantations are getting increasingly complex. This poses challenges especially for electrophysiologists in training, not only to learn how to perform the procedure, but also how to manage possible complications. The present article uses exemplary case studies to present how to control complications and how to avoid them. The presented cases deal with complications such as air embolism in left atrial procedures, iatrogenic vascular injuries such as aortic dissection or dissection of the coronary sinus, complications and challenges with lead revisions, and pericardial tamponade. In each case, measures for avoidance as well as practical guidance for management are shown when the respective complication occurs.
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Affiliation(s)
- David Duncker
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland.
| | - Tilman Dahme
- Klinik für Innere Medizin II, Kardiologie, Angiologie, Pneumologie, internistische Intensivmedizin, Rehabilitations- und Sportmedizin, Universitätsklinikum Ulm, Ulm, Deutschland
| | - Isabel Deisenhofer
- Abteilung für Elektrophysiologie, Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Klinik an der Technischen Universität München, München, Deutschland
| | - Henrike A K Hillmann
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Verena Kantenwein
- Abteilung für Elektrophysiologie, Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Klinik an der Technischen Universität München, München, Deutschland
| | - Johanna Müller-Leisse
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Daniel Palacios
- Klinikfür Herz‑, Kinderherz- und Gefäßchirurgie, Abteilung Gefäßchirurgie, Universitätsklinikum Gießen, Gießen, Deutschland
| | - Alexander Pott
- Klinik für Innere Medizin II, Kardiologie, Angiologie, Pneumologie, internistische Intensivmedizin, Rehabilitations- und Sportmedizin, Universitätsklinikum Ulm, Ulm, Deutschland
| | - Tilko Reents
- Abteilung für Elektrophysiologie, Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Klinik an der Technischen Universität München, München, Deutschland
| | - Jörn Schmitt
- Medizinische Klinik I, Abteilung Kardiologie, Universitätsklinikum Gießen, Gießen, Deutschland
| | - Christian Veltmann
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Christos Zormpas
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Victoria Johnson
- Medizinische Klinik I, Abteilung Kardiologie, Universitätsklinikum Gießen, Gießen, Deutschland
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Tsantes AE, Frantzeskaki F, Tsantes AG, Rapti E, Rizos M, Kokoris SI, Paramythiotou E, Katsadiotis G, Karali V, Flevari A, Chrysanthopoulou E, Maratou E, Kyriakou E, Gialeraki A, Bonovas S, Dimopoulos G, Tsangaris I, Armaganidis A. The haemostatic profile in critically ill COVID-19 patients receiving therapeutic anticoagulant therapy: An observational study. Medicine (Baltimore) 2020; 99:e23365. [PMID: 33217881 PMCID: PMC7676559 DOI: 10.1097/md.0000000000023365] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Hypercoagulability and thrombosis remain a challenge in severe coronavirus disease 2019 (COVID-19) infections. Our aim is to investigate the hemostatic profile of critically ill COVID-19 patients on therapeutic anticoagulant treatment.Forty one patients were enrolled into the study. We recruited 11 consecutive, COVID-19, patients who received therapeutic anticoagulant treatment on intensive care unit (ICU) admission. Disease severity indexes, biochemical, hematological and haemostatic parameters, endogenous thrombin potential (ETP), plasminogen activator inhibitor-1 (PAI-1) activity and extrinsically activated rotational thromboelastometry assay (EXTEM) were recorded on days 1, 3, 7. We also enrolled 9 ICU non-COVID-19, 21 non-ICU COVID-19 patients and 20 healthy blood donors as control populations.Critically ill COVID-19 patients demonstrated a more hypercoagulable and hypofibrinolytic profile related to those with COVID-19 mild illness, based on EXTEM amplitude at 10 min (A10), maximum clot firmness (MCF) and lysis index at 60 min (LI60) variables (p = 0.020, 0.046 and 0.001, respectively). Similarly, a more hypercoagulable state was detected in COVID-19 ICU patients related to non-COVID-19 ICU patients based on A10 and MCF parameters (p = 0.03 and 0.04, respectively). On the contrary, ETP and EXTEM (clotting time) CT values were similar between patients with severe and mild form of the COVID-19 infection, probably due to anticoagulant treatment given.Critically ill COVID-19 patients showed a hypercoagulable profile despite the therapeutic anticoagulant doses given. Due to the small sample size and the study design, the prognostic role of the hypercoagulability in this clinical setting remains unknown and further research is required in order to be assessed.
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Affiliation(s)
- Argirios E. Tsantes
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | - Frantzeska Frantzeskaki
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Andreas G. Tsantes
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | - Evdoxia Rapti
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | - Michalis Rizos
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Styliani I. Kokoris
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | - Elizabeth Paramythiotou
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Georgios Katsadiotis
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | | | - Aikaterini Flevari
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Evangelia Chrysanthopoulou
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Eirini Maratou
- Laboratory of Clinical Biochemistry, “Attikon” University Hospital, Medical School, University of Athens, Athens, Greece
| | - Elias Kyriakou
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | - Argyri Gialeraki
- Laboratory of Hematology and Blood Bank Unit, “Attikon” University Hospital, Medical School, National and Kapodistrian University of Athens
| | - Stefanos Bonovas
- Department of Biomedical Sciences, Humanitas University
- Humanitas Clinical and Research Center, – IRCCS, Milan, Italy
| | - George Dimopoulos
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Iraklis Tsangaris
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
| | - Apostolos Armaganidis
- Second Department of Critical Care, “Attikon” University Hospital, National and Kapodistrian University of Athens, Medical School
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Abstract
BACKGROUND Venous thromboembolism (VTE) is increasingly reported in seriously ill patients with COVID-19 infection. Incidence of VTE has been reported before and results varied widely in study cohorts. AREA OF UNCERTAINTY Incidence of major VTE (segmental pulmonary embolism and above and proximal deep vein thrombosis) which is a contributor to mortality and morbidity is not known. Also, data is unclear on the optimal anticoagulation regimen to prevent VTE. DATA SOURCES Multiple databases including PubMed were searched until May 12, 2020, to include studies reporting VTE in hospitalized COVID-19 adult patients. MOOSE guidelines were followed in selection, and 11 studies were included. We conducted a systematic review and meta-analysis to quantitatively assess the VTE burden in hospitalized COVID-19 patients and potential benefits of therapeutic dosing of anticoagulation compared with prophylaxis dosing for VTE prevention. THERAPEUTIC ADVANCES Many societies and experts recommend routine prophylactic anticoagulation with heparin for VTE prevention in hospitalized COVID-19 patients. In this meta-analysis, the pooled rate of major VTE was 12.5% in hospitalized patients and 17.2% in intensive care unit patients. When therapeutic anticoagulation dosing was compared with prophylactic anticoagulation, the pooled odds ratio of VTE was 0.33 (95% confidence interval 0.14-0.75; P = 0.008, I = 0%) suggesting statistical significance with therapeutic dosing of anticoagulation for primary prevention of VTE in all hospitalized patients. However, this should be interpreted with caution as the bleeding events and safety profile could not be ascertained because of lack of adequate information. We recommend applying this finding to hospitalized COVID 19 patients only after carefully weighing individual bleeding risks and benefits. CONCLUSION Major VTE events, especially pulmonary embolism, seem to be high in COVID-19 patients admitted to the intensive care unit. Therapeutic anticoagulation dosing seems to significantly benefit the odds of preventing any VTE when compared with prophylactic dosing in all hospitalized patients.
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190
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Zhao TJ, Yang QK, Tan CY, Bi LD, Li J, Miao ZL. Prognostic value of D-dimer/fibrinogen ratio in the adverse outcomes of patients hospitalized for heart failure. Biomark Med 2020; 14:1733-1745. [PMID: 33174759 DOI: 10.2217/bmm-2020-0553] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: To evaluate the clinical value of plasma D-dimer/fibrinogen ratio (DFR) in patients hospitalized for heart failure (HF). Methods: Clinical data of 235 patients were retrospectively analyzed. Kaplan-Meier method and Cox regression analysis were used to identify significant prognosticators. Results: The Kaplan-Meier analysis showed that a higher DFR level was significantly associated with an increase in the end point outcomes, including HF readmission, thrombotic events and death (log-rank test: p < 0.001). The multivariate Cox regression analysis showed that the high tertile of DFR was significantly associated with the study end points (HR: 2.18; 95% CI: 1.31-3.62; p = 0.003), compared with the low tertile. Conclusion: DFR is a reliable prognostic indicator for patients hospitalized for HF.
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Affiliation(s)
- Tian-Jun Zhao
- Department of Cardiology, The People's Hospital of China Medical University, The People's Hospital of Liaoning Province, Shenyang, 110016, China
| | - Qian-Kun Yang
- Department of Bone & Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, China
| | - Chun-Yu Tan
- Department of Cardiology, The People's Hospital of China Medical University, The People's Hospital of Liaoning Province, Shenyang, 110016, China
| | - Li-Dan Bi
- Department of Cardiology, The People's Hospital of China Medical University, The People's Hospital of Liaoning Province, Shenyang, 110016, China
| | - Jie Li
- Department of Cardiology, The People's Hospital of China Medical University, The People's Hospital of Liaoning Province, Shenyang, 110016, China
| | - Zhi-Lin Miao
- Department of Cardiology, The People's Hospital of China Medical University, The People's Hospital of Liaoning Province, Shenyang, 110016, China
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191
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Ghosh SK, Bandyopadhyay D, Dutta A, Jane EP, Biswas SK. A Profile of 23 Indian Patients with Purpura Fulminans: A Retrospective, Descriptive Study. Indian J Dermatol 2020; 65:381-387. [PMID: 33165344 PMCID: PMC7640787 DOI: 10.4103/ijd.ijd_8_19] [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] [Indexed: 12/02/2022] Open
Abstract
Background: Purpura fulminans (PF) is a potentially fatal uncommon disorder of intravascular thrombosis and is clinically characterized by rapidly progressive hemorrhagic infarction of the skin. Objective: To describe the clinical feature and outcome of a series of patients with PF. Materials and Methods: A descriptive study based on review of case records was carried out at a tertiary care hospital in Kolkata. Results: Twenty three consecutive cases seen over a period of 8 years were studied. The age range was 4 days to 78 years (mean 35.6 years) with a male to female ratio of 1:2.8. Hemorrhagic rash was the universal presenting symptom. Other major presenting features included pneumonia (26.1%), sudden-onset shock syndrome (21.7%), and urinary tract infection (17.4%). All patients presented with retiform purpura and lesional necrosis and 8 (34.8%) patients had associated peripheral gangrene. Nineteen (82.6%) patients had sepsis and 60.9% patients had vesiculo-bullous lesion. Pneumococcus was the most common (26.1%) pathogenic organism detected. The precise cause of PF could not be detected in two (8.7%) patients. One patient (4.3%) with neonatal PF had protein C deficiency. All patients had evidence of disseminated intravascular coagulation (DIC). One patient had to undergo a below knee surgical amputation and one patient had autoamputation of the digits. Ten (43.5%) patients succumbed to their illness. Seven of the 8 patients who had peripheral gangrene had a fatal outcome. Limitations: Relatively small sample size and a referral bias were a few limitations of the present study. Conclusion: The present study emphasizes that PF is a cutaneous marker of DIC. Association of peripheral gangrene, leukopenia and neutropenia may be the reason for the high mortality rate.
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Affiliation(s)
- Sudip Kumar Ghosh
- Department of Dermatology, Venereology, and Leprosy, R.G. Kar Medical College, Kolkata, India
| | | | - Abhijit Dutta
- Department of Pediatric Medicine, North Bengal Medical College, West Bengal, India
| | - Esther P Jane
- Department of Dermatology, Venereology, and Leprosy, R.G. Kar Medical College, Kolkata, India
| | - Surajit Kumar Biswas
- Department of Dermatology, Venereology, and Leprosy, R.G. Kar Medical College, Kolkata, India
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Edwards K, Allison M, Ghuman S. Secondary sclerosing cholangitis in critically ill patients: a rare disease precipitated by severe SARS-CoV-2 infection. BMJ Case Rep 2020; 13:13/11/e237984. [PMID: 33168538 PMCID: PMC7654135 DOI: 10.1136/bcr-2020-237984] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A previously well 59-year-old man required a prolonged intensive care unit stay due to severe COVID-19 symptoms. During the admission, he developed a cytokine storm, also known as secondary haemophagocytic lymphohistocytosis, and multiorgan failure. Despite recovering from his other organ failures, his liver function continued to deteriorate. Magnetic resonance cholangiopancreatography and subsequent endoscopic retrograde cholangiopancreatography revealed extensive intrahepatic duct dilatation with ‘beading’ but common bile duct sparing. Given the patient had no primary liver disease prior to admission, we considered secondary causes of cholestatic liver injury; this led us to an unusual diagnosis of secondary sclerosing cholangitis in critically ill patients. This case demonstrates a rare disease that has developed specifically in the context of SARS-CoV-2 infection. A review of current literature and the underlying pathophysiology for this rare disease are discussed, particularly in relation to COVID-19.
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Affiliation(s)
- Kate Edwards
- Gastroenterology, Nevill Hall Hospital, Abergavenny, UK
| | - Miles Allison
- Gastroenterology, Nevill Hall Hospital, Abergavenny, UK
| | - Sekina Ghuman
- Gastroenterology, Nevill Hall Hospital, Abergavenny, UK
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193
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Singh P, Schwartz RA. Disseminated intravascular coagulation: A devastating systemic disorder of special concern with COVID-19. Dermatol Ther 2020; 33:e14053. [PMID: 32700813 PMCID: PMC7404500 DOI: 10.1111/dth.14053] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 12/13/2022]
Abstract
Disseminated intravascular coagulation (DIC) is linked with severe COVID-19, prompting considerable concern. DIC can be a devastating systemic disorder. It is often markedly manifest on the skin as acrocyanosis or as petechiae and purpura with progression to hemorrhagic bullae. Subcutaneous hematomas may occur, as may thrombotic findings including necrosis and gangrene. The most common cause is infection, with special emphasis now on COVID-19. We have reviewed the medical literature under the search terms "Disseminated intravascular coagulation" and "consumption coagulopathy" for the past two decades in the English language using Medline and Google Scholar to update special concerns and considerations, focusing on those with COVID-19. Skin findings with DIC may be prominent. The severity of cutaneous lesions often correlates with the gravity of systemic disease. DIC is most effectively treated by addressing the underlying cause and resuscitating the patient using supportive measures. It is pivotal to recognize and treat DIC early, before deadly complications, such as multiple organ failure, arise.
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Affiliation(s)
- Parmvir Singh
- DermatologyRutgers‐New Jersey Medical SchoolNewarkNew JerseyUSA
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194
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de Santana Ferreira E, de Souza Júnior VR, de Oliveira JFS, Costa MFH, da Conceição de Barros Correia M, de Sá AF. Rare association of consumptive coagulopathy in visceral leishmaniasis: A case report. Trop Doct 2020; 51:120-122. [PMID: 33108965 DOI: 10.1177/0049475520967239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Visceral leishmaniasis is a tropical parasitic disease caused by the species of the genus Leishmania infantum. The clinical picture includes fever, splenomegaly, leucopenia, anaemia and hypergammaglobulinaemia. There may also be a drop in plasma fibrinogen levels or an increase in plasma fibrinolytic activity. Furthermore, visceral leishmaniasis may be the trigger for secondary haemophagocytic lymphohistiocytosis. On the other hand, disseminated intravascular coagulation may also result. The International Society of Thrombosis and Hemostasis has recommended the use of a scoring system for disseminated intravascular coagulation. An association between visceral leishmaniasis and consumption coagulopathy is not frequent. Our systematic literature review from 1967 to 2019 pointed to the report of only 16 cases. Our case demonstrates that it is necessary to be aware of the existence of this association.
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Affiliation(s)
- Eric de Santana Ferreira
- Doctor, Department of Hematology and Hemotherapy, 28116Federal University of Pernambuco, Pernambuco, Brazil
| | | | | | - Manuela Freire Hazin Costa
- Doctor, Department of Hematology and Hemotherapy, 28116Federal University of Pernambuco, Pernambuco, Brazil
| | | | - Alessandra Ferraz de Sá
- Doctor, Department of Hematology and Hemotherapy, Hematology and Hemotherapy Foundation of Pernambuco (Hemope), Pernambuco, Brazil
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195
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Ohbe H, Yamakawa K, Taniguchi K, Morita K, Matsui H, Fushimi K, Yasunaga H. Underlying Disorders, Clinical Phenotypes, and Treatment Diversity among Patients with Disseminated Intravascular Coagulation. JMA J 2020; 3:321-329. [PMID: 33225104 PMCID: PMC7677446 DOI: 10.31662/jmaj.2020-0023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/05/2020] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION Clinical guidelines state that disseminated intravascular coagulation (DIC) treatment should be based on three clinical phenotypes: the marked bleeding type (e.g. leukemia, trauma, obstetric diseases, or aortic diseases); organ failure type (sepsis or pancreatitis); and asymptomatic type of DIC (solid cancer). However, among the various underlying disorders of DIC, the clinical presentations of bleeding or organ failure have not to date been well documented. The present study aimed to evaluate whether underlying disorders of DIC would affect clinical outcome including death, organ failure, and bleeding. METHODS Using the Japanese Diagnosis Procedure Combination inpatient database, we identified all adult patients diagnosed with DIC during hospitalization from July 1, 2010, to March 31, 2018. We collected data on patient characteristics and underlying disorders of DIC including sepsis, solid cancer, leukemia, trauma, obstetric diseases, aortic diseases, pancreatitis, and miscellaneous diseases. We counted major bleeding events and calculated an organ failure score for patients during hospitalization. RESULTS We identified 337,132 patients with DIC. The major disorders underlying DIC were sepsis (42%) and solid cancer (31%). The average organ failure scores of patients with aortic diseases, sepsis, and trauma were 2.8, 2.2, and 2.2, respectively. The percentages with major bleeding events among patients with aortic diseases, trauma, obstetric diseases, and solid cancer were 24%, 15%, 10%, and 10%, respectively. CONCLUSIONS This study suggests that the clinical presentations of bleeding and organ failure are not associated with the three existing clinical phenotypes of DIC or with the underlying disorders of DIC. Therefore, clinical presentation alone may not be sufficient for identifying the clinical phenotypes of DIC. Further research is necessary to develop new strategies for identifying the phenotypes of DIC and improving treatment strategies for individual patients.
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Affiliation(s)
- Hiroyuki Ohbe
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - Kazuma Yamakawa
- Division of Trauma and Surgical Critical Care, Osaka General Medical Center, Osaka, Japan
| | - Kohei Taniguchi
- Translational Research Program, Osaka Medical College, Osaka, Japan
| | - Kojiro Morita
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
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196
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Pliszczak-Król A, Gemra M, Kozdrowski R, Zalewski D, Iwaszko A. Involvement of hemostasis in pathophysiology of RAO in horses. Vet Immunol Immunopathol 2020; 230:110128. [PMID: 33049418 DOI: 10.1016/j.vetimm.2020.110128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 09/22/2020] [Accepted: 10/03/2020] [Indexed: 11/17/2022]
Abstract
Recurrent Airway Obstruction (RAO), also called severe asthma or heaves, is a chronic disease in adult horses caused by aeroallergens from straw or hay. Disturbances in hemostasis (intensified coagulation and depressed fibrinolysis) are considered one of the prominent reasons of inflammatory process, injury and dysfunction of the lungs. The aim of the study was to evaluate chosen parameters of hemostasis in horses with active form of RAO. Ten RAO-horses (group R) and ten healthy horses (group C) were exposed to straw and hay allergen challenge. The prothrombin time (PT), activated partial thromboplastin time (aPTT), thrombin time (TT), fibrinogen concentration (Fb), stabilized fibrin degradation product (d-dimer), antithrombin (AT), protein C and coagulation factors II through XII were assessed in plasma obtained from blood of all the horses. Exposure to aeroallergens resulted in prolongation of aPTT in both groups of animals; it was evident in the group R and moderate in the group C. There were no differences in PT and TT. Concentrations of fibrinogen and d-dimer and activity of protein C in both groups were increased but lay within or near to reference values. The activity of AT was depressed in RAO-horses. All exposed horses showed increased activity of coagulation factors II, VIII and X but they had no changes in activity of factor V. Factors VII and XII displayed a reduction in activity. The decrease in factor IX activity was noted in the group C only. Various changes were observed in activity of factor XI; in horses with RAO it was elevated but in healthy horses it was declined. The changes of the parameters tested in RAO-horses indicate the involvement of coagulation and fibrinolysis which apparently remained under control of efficient and active mechanisms of general hemostasis.
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Affiliation(s)
- Aleksandra Pliszczak-Król
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland.
| | - Marianna Gemra
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland.
| | - Roland Kozdrowski
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Torun, Poland.
| | - Dariusz Zalewski
- Department of Genetics, Plant Breeding and Seed Production, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland.
| | - Alicja Iwaszko
- TIERplus Wien-Kagran - Tiermedizinisches Zentrum für Chirurgie und Diagnostik, Wien, Austria.
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198
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Frazer JS, Tyrynis Everden AJ. Emerging patterns of hypercoagulability associated with critical COVID-19: A review. TRENDS IN ANAESTHESIA AND CRITICAL CARE 2020; 34:4-13. [PMID: 38620391 PMCID: PMC7346831 DOI: 10.1016/j.tacc.2020.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/02/2020] [Accepted: 07/07/2020] [Indexed: 12/21/2022]
Abstract
While the COVID-19 pandemic sweeps the world, much evidence is being gathered regarding its novel pathological mechanisms. It is the authors' clinical experience that patients in the intensive care unit suffering from COVID-19 are extremely pro-coagulable, with venous and arterial thromboembolism frequently observed, and losses of vascular access lines and filtration circuits to thrombosis now commonplace. Here, we explore the evidence for hypercoagulability in this group, presenting evidence of both a localised pulmonary hypercoagulability, and a systemic hypercoagulability resulting in thrombosis distant to the pulmonary vasculature. Furthermore, we discuss the possible risk factors exacerbated by, or selected for in COVID-19. We review the available evidence for use of plasma D-dimer as a prognostic marker, exploring the possibility that it acts as a marker of a COVID-19-associated hypercoagulability. We review the evidence for a pro-coagulant subtype of disseminated intravascular coagulation, discussing its clinical significance. Finally, we discuss the current evidence surrounding treatment of COVID-19 hypercoagulability, including prophylactic and treatment-dose heparin, thrombolytic agents, antiplatelet agents, and direct thrombin inhibitors, among others. We suggest areas in which further investigation is urgently needed to reduce the startling incidence of thrombosis in this group, a complication no doubt contributing to morbidity and mortality.
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Affiliation(s)
- John Scott Frazer
- Somerville College, University of Oxford, Woodstock Road, Oxford, OX2 6HD, UK
- Buckinghamshire Healthcare NHS Trust, Aylesbury, UK
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199
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Abstract
The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has brought many unique pathologies, such as coagulopathy, prompting a desperate need for effective management. COVID-19-associated coagulopathy (CAC) can cause various thromboembolic complications, especially in critically ill patients. The pathogenesis is likely due to endothelial injury, immobilization, and an increase in circulating prothrombotic factors. Data on treatment are limited, although prophylactic anticoagulation is advised in all hospitalized patients. Herein, we have comprehensively reviewed the current literature available on CAC and highlight the pathogenesis, clinical features, and management of CAC.
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200
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Abou-Ismail MY, Diamond A, Kapoor S, Arafah Y, Nayak L. The hypercoagulable state in COVID-19: Incidence, pathophysiology, and management. Thromb Res 2020; 194:101-115. [PMID: 32788101 PMCID: PMC7305763 DOI: 10.1016/j.thromres.2020.06.029] [Citation(s) in RCA: 387] [Impact Index Per Article: 96.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/13/2020] [Accepted: 06/17/2020] [Indexed: 02/07/2023]
Abstract
The 2019 coronavirus disease (COVID-19) presents with a large variety of clinical manifestations ranging from asymptomatic carrier state to severe respiratory distress, multiple organ dysfunction and death. While it was initially considered primarily a respiratory illness, rapidly accumulating data suggests that COVID-19 results in a unique, profoundly prothrombotic milieu leading to both arterial and venous thrombosis. Consistently, elevated D-dimer level has emerged as an independent risk factor for poor outcomes, including death. Several other laboratory markers and blood counts have also been associated with poor prognosis, possibly due to their connection to thrombosis. At present, the pathophysiology underlying the hypercoagulable state is poorly understood. However, a growing body of data suggests that the initial events occur in the lung. A severe inflammatory response, originating in the alveoli, triggers a dysfunctional cascade of inflammatory thrombosis in the pulmonary vasculature, leading to a state of local coagulopathy. This is followed, in patients with more severe disease, by a generalized hypercoagulable state that results in macro- and microvascular thrombosis. Of concern, is the observation that anticoagulation may be inadequate in many circumstances, highlighting the need for alternative or additional therapies. Numerous ongoing studies investigating the pathophysiology of the COVID-19 associated coagulopathy may provide mechanistic insights that can direct appropriate interventional strategies.
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Affiliation(s)
- Mouhamed Yazan Abou-Ismail
- University Hospitals, Cleveland Medical Center, Cleveland, OH, United States of America; Case Western Reserve University, Cleveland, OH, United States of America.
| | - Akiva Diamond
- University Hospitals, Cleveland Medical Center, Cleveland, OH, United States of America; Case Western Reserve University, Cleveland, OH, United States of America
| | - Sargam Kapoor
- Alaska Native Medical Center, Anchorage, AK, United States of America
| | - Yasmin Arafah
- University Hospitals, Cleveland Medical Center, Cleveland, OH, United States of America; Case Western Reserve University, Cleveland, OH, United States of America
| | - Lalitha Nayak
- University Hospitals, Cleveland Medical Center, Cleveland, OH, United States of America; Case Western Reserve University, Cleveland, OH, United States of America.
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