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Sieh L, Peasley E, Mao E, Mitchell A, Heinonen G, Ghoshal S, Agarwal S, Park S, Connolly ES, Claassen J, Moore EE, Hansen K, Hod EA, Francis RO, Roh DJ. Admission Viscoelastic Hemostatic Assay Parameters Predict Poor Long-Term Intracerebral Hemorrhage Outcomes. Neurocrit Care 2024:10.1007/s12028-024-02051-w. [PMID: 38955933 DOI: 10.1007/s12028-024-02051-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 06/13/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND Viscoelastic hemostatic assays (VHAs) provide more comprehensive assessments of coagulation compared with conventional coagulation assays. Although VHAs have enabled guided hemorrhage control therapies, improving clinical outcomes in life-threatening hemorrhage, the role of VHAs in intracerebral hemorrhage (ICH) is unclear. If VHAs can identify coagulation abnormalities relevant for ICH outcomes, this would support the need to investigate the role of VHAs in ICH treatment paradigms. Thus, we investigated whether VHA assessments of coagulation relate to long-term ICH outcomes. METHODS Patients with spontaneous ICH enrolled into a single-center cohort study receiving admission Rotational Thromboelastometry (ROTEM) VHA testing between 2013 and 2020 were assessed. Patients with previous anticoagulant use or coagulopathy on conventional coagulation assays were excluded. Primary ROTEM exposure variables were coagulation kinetics and clot strength assessments. Poor long-term outcome was defined as modified Rankin Scale ≥ 4 at 6 months. Logistic regression analyses assessed associations of ROTEM parameters with clinical outcomes after adjusting for ICH severity and hemoglobin concentration. RESULTS Of 44 patients analyzed, the mean age was 64 years, 57% were female, and the median ICH volume was 23 mL. Poor 6-month outcome was seen in 64% of patients. In our multivariable regression models, slower, prolonged coagulation kinetics (adjusted odds ratio for every second increase in clot formation time 1.04, 95% confidence interval 1.00-1.09, p = 0.04) and weaker clot strength (adjusted odds ratio for every millimeter increase of maximum clot firmness 0.84, 95% confidence interval 0.71-0.99, p = 0.03) were separately associated with poor long-term outcomes. CONCLUSIONS Slower, prolonged coagulation kinetics and weaker clot strength on admission VHA ROTEM testing, not attributable to anticoagulant use, were associated with poor long-term outcomes after ICH. Further work is needed to clarify the generalizability and the underlying mechanisms of these VHA findings to assess whether VHA-guided treatments should be incorporated into ICH care.
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Affiliation(s)
- Laura Sieh
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Emma Peasley
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Eric Mao
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Amanda Mitchell
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Gregory Heinonen
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Shivani Ghoshal
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Sachin Agarwal
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Soojin Park
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - E Sander Connolly
- Department of Neurological Surgery, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Jan Claassen
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA
| | - Ernest E Moore
- Department of Surgery, Ernest E. Moore Shock Trauma Center at Denver Health, Denver, CO, USA
| | - Kirk Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO, USA
| | - Eldad A Hod
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Richard O Francis
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - David J Roh
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, 177 Fort Washington Ave, New York, NY, 10032, USA.
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Dobson GP, Letson HL, Morris JL. Revolution in sepsis: a symptoms-based to a systems-based approach? J Biomed Sci 2024; 31:57. [PMID: 38811967 PMCID: PMC11138085 DOI: 10.1186/s12929-024-01043-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 05/17/2024] [Indexed: 05/31/2024] Open
Abstract
Severe infection and sepsis are medical emergencies. High morbidity and mortality are linked to CNS dysfunction, excessive inflammation, immune compromise, coagulopathy and multiple organ dysfunction. Males appear to have a higher risk of mortality than females. Currently, there are few or no effective drug therapies to protect the brain, maintain the blood brain barrier, resolve excessive inflammation and reduce secondary injury in other vital organs. We propose a major reason for lack of progress is a consequence of the treat-as-you-go, single-nodal target approach, rather than a more integrated, systems-based approach. A new revolution is required to better understand how the body responds to an infection, identify new markers to detect its progression and discover new system-acting drugs to treat it. In this review, we present a brief history of sepsis followed by its pathophysiology from a systems' perspective and future opportunities. We argue that targeting the body's early immune-driven CNS-response may improve patient outcomes. If the barrage of PAMPs and DAMPs can be reduced early, we propose the multiple CNS-organ circuits (or axes) will be preserved and secondary injury will be reduced. We have been developing a systems-based, small-volume, fluid therapy comprising adenosine, lidocaine and magnesium (ALM) to treat sepsis and endotoxemia. Our early studies indicate that ALM therapy shifts the CNS from sympathetic to parasympathetic dominance, maintains cardiovascular-endothelial glycocalyx coupling, reduces inflammation, corrects coagulopathy, and maintains tissue O2 supply. Future research will investigate the potential translation to humans.
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Affiliation(s)
- Geoffrey P Dobson
- Heart, Sepsis and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Townsville, QLD, 4811, Australia.
| | - Hayley L Letson
- Heart, Sepsis and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Townsville, QLD, 4811, Australia
| | - Jodie L Morris
- Heart, Sepsis and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Townsville, QLD, 4811, Australia
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Sieh L, Peasley E, Mao E, Mitchell A, Heinonen G, Ghoshal S, Agarwal S, Park S, Connolly ESS, Claassen J, Moore EE, Hansen K, Hod EA, Francis RO, Roh D. Admission viscoelastic hemostatic assay parameters predict poor long-term intracerebral hemorrhage outcomes. RESEARCH SQUARE 2024:rs.3.rs-4087284. [PMID: 38585893 PMCID: PMC10996822 DOI: 10.21203/rs.3.rs-4087284/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Background Viscoelastic hemostatic assays (VHA) provide more comprehensive assessments of coagulation compared to conventional coagulation assays. While VHAs have enabled guided hemorrhage control therapies, improving clinical outcomes in life-threatening hemorrhage, the role of VHAs in intracerebral hemorrhage (ICH) is unclear. If VHAs can identify coagulation abnormalities relevant for ICH outcomes, this would support the need to investigate the role of VHAs in ICH treatment paradigms. Thus, we investigated whether VHA assessments of coagulation relate to long-term ICH outcomes. Methods Spontaneous ICH patients enrolled into a single-center cohort study receiving admission Rotational Thromboelastometry (ROTEM) VHA testing between 2013 and 2020 were assessed. Patients with prior anticoagulant use or coagulopathy on conventional coagulation assays were excluded. Primary ROTEM exposure variables were coagulation kinetics and clot strength assessments. Poor long-term outcome was defined as modified Rankin Scale ≥ 4 at 6 months. Logistic regression analyses assessed associations of ROTEM parameters with clinical outcomes after adjusting for ICH severity and hemoglobin concentration. Results Of 44 patients analyzed, mean age was 64, 57% were female, and the median ICH volume was 23 mL. Poor 6-month outcome was seen in 64%. In our multivariable regression models, slower, prolonged coagulation kinetics (adjusted OR for every second increase in clot formation time: 1.04, 95% CI: 1.00-1.09, p = 0.04) and weaker clot strength (adjusted OR for every millimeter increase of maximum clot firmness: 0.84, 95% CI: 0.71-0.99, p = 0.03) were separately associated with poor long-term outcomes. Conclusions Slower, prolonged coagulation kinetics and weaker clot strength on admission VHA ROTEM testing, not attributable to anticoagulant use, were associated with poor long-term outcomes after ICH. Further work is needed to clarify the generalizability and the underlying mechanisms of these VHA findings to assess whether VHA guided treatments should be incorporated into ICH care.
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Affiliation(s)
- Laura Sieh
- Columbia University Vagelos College of Physicians and Surgeons
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Raatikainen E, Kiiski H, Kuitunen A, Junttila E, Huhtala H, Kallonen A, Ala-Peijari M, Långsjö J, Saukkonen J, Valo T, Kauppila T, Raerinne S, Frösen J, Vahtera A. Increased blood coagulation is associated with poor neurological outcome in aneurysmal subarachnoid hemorrhage. J Neurol Sci 2024; 458:122943. [PMID: 38422781 DOI: 10.1016/j.jns.2024.122943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/14/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND AND PURPOSE Patients with aneurysmal subarachnoid hemorrhage (aSAH) have demonstrated increased blood coagulation which is thought to contribute to delayed cerebral ischemia (DCI) and to a worse outcome. Therefore, we sought to determine whether this increased blood coagulation, detectable with rotational thromboelastometry (ROTEM), was associated with DCI and neurological outcome. METHODS We conducted a prospective observational study of 60 consecutive adult aSAH patients. ROTEM's EXTEM and FIBTEM assays and D-dimer were analyzed at admission and post-bleed days (PBDs) 2-3, 4-5, 7-8, and 11-12. ROTEM's clot formation time (CFT) represents the stabilization of the clot, and the maximum clot firmness (MCF) the maximum clot strength. Glasgow Outcome Scale extended (GOSe) at three months determined the neurological outcome. RESULTS DCI incidence was 41.7%. EXTEM-CFT was significantly shorter in patients with unfavorable neurological outcome (GOSe 1-4) on PBDs 4-5 and 7-8, p < 0.05, respectively. FIBTEM-MCF was significantly higher in patients with unfavorable neurological outcomes on PBD 4-5 (p < 0.05), PBD 7-8 (p < 0.05), and PBD 11-12 (p < 0.05). EXTEM-CFT decreased, and FIBTEM-MCF rose during the study period in all patients. Patients with unfavorable neurological outcome had a higher D-dimer at all studied time points, p < 0.05. No difference was found in the ROTEM parameters or D-dimer when assessing patients with and without DCI. CONCLUSIONS Patients were in a state of increased blood coagulation after aSAH, with those with unfavorable neurological outcome being more coagulable than those with favorable outcome. However, increased blood coagulation was not associated with DCI. CLINICALTRIALS gov, NCT03985176.
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Affiliation(s)
- Essi Raatikainen
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland.
| | - Heikki Kiiski
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Anne Kuitunen
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Eija Junttila
- Tampere University Hospital, Department of Anesthesia and Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Heini Huhtala
- Tampere University, Faculty of Social Sciences, Tampere, Finland
| | - Antti Kallonen
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Marika Ala-Peijari
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Jaakko Långsjö
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Johanna Saukkonen
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Timo Valo
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Terhi Kauppila
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Sanni Raerinne
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Juhana Frösen
- Tampere University Hospital, Department of Neurosurgery, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Annukka Vahtera
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
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Mohapatra P, Kumar A, Singh RK, Gupta R, Hussain M, Singh S, Kumar P. The Effect of Sepsis and Septic Shock on the Viscoelastic Properties of Clot Quality and Mass Using Thromboelastometry: A Prospective Observational Study. Indian J Crit Care Med 2023; 27:625-634. [PMID: 37719352 PMCID: PMC10504658 DOI: 10.5005/jp-journals-10071-24539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 08/12/2023] [Indexed: 09/19/2023] Open
Abstract
Background Sepsis is associated with wide variable coagulation abnormalities. Thromboelastography (TEG) effectively measures the viscoelastic properties of the clots. This study aims to illustrate the viscoelastic properties of clot quality and mass in sepsis and septic shock patients using TEG, as an effective tool over standard coagulation tests. Materials and methods A single-center, prospective observational study was conducted. 50 patients each meeting the criteria for sepsis and septic shock, and a healthy group of 30 patients was included in the study. Blood samples were obtained and analyzed for standard coagulation tests, platelet count, fibrinogen, and TEG study. Results A total of 130 patients were included. Septic shock patients had a higher sequential (sepsis-related) organ failure score. Prothrombin time (PT) and activated partial thromboplastin time (aPTT) were increased significantly as compared to the sepsis and control groups. TEG markers such as alpha angle, and maximum amplitude (MA) were significantly prolonged while reaction time (R time), was significantly shortened in the sepsis group as compared to the healthy group, suggestive of a hypercoagulable state in sepsis patients. While in septic shock patients, MA and Lysis Index 30 (LY 30) were significantly prolonged and, R time was significantly shortened compared to all other groups. Even though LY30 in sepsis patients was found to be within the normal range (p < 0.001), 18% of patients had prolonged LY30 indicating a hypercoagulable state with impaired fibrinolysis. Conclusion Thromboelastography, as a point-of-care test combined with conventional coagulation tests can provide additional, clinically relevant information on coagulopathy, and outcome, and thus help guide treatment modality in sepsis and septic shock-induced coagulopathy. How to cite this article Mohapatra P, Kumar A, Singh RK, Gupta R, Hussain M, Singh S, et al. The Effect of Sepsis and Septic Shock on the Viscoelastic Properties of Clot Quality and Mass Using Thromboelastometry: A Prospective Observational Study. Indian J Crit Care Med 2023;27(9):625-634.
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Affiliation(s)
- Priyanka Mohapatra
- Department of Anesthesiology & Critical Care Medicine, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
| | - Arvind Kumar
- Department of Anesthesiology & Critical Care Medicine, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
| | - Rakesh Kumar Singh
- Department of Anesthesiology & Critical Care Medicine, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
| | - Ruchi Gupta
- Department of Critical Care, Holy Family Hospital, New Delhi, India
| | - Mumtaz Hussain
- Department of Anesthesiology & Critical Care Medicine, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
| | - Swati Singh
- Department of Anesthesiology & Critical Care Medicine, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
| | - Pankaj Kumar
- Department of Anesthesiology & Critical Care Medicine, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
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Bui-Thi HD, Le Minh K. Coagulation profiles in patients with sepsis/septic shock identify mixed hypo-hypercoagulation patterns based on rotational thromboelastometry: A prospective observational study. Thromb Res 2023; 227:51-59. [PMID: 37235948 DOI: 10.1016/j.thromres.2023.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/21/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023]
Abstract
INTRODUCTION Sepsis-induced hemostatic disturbances are common and are associated with poor outcomes. Additionally, conventional coagulation tests (CCTs) overdiagnose hypocoagulation and cannot detect hypercoagulation and hyperfibrinolysis. The aim of this study was to describe the coagulation profiles of patients with sepsis/septic shock using rotational thromboelastometry (ROTEM) and to compare coagulation states between sepsis and septic shock groups and between surviving and non-surviving groups. MATERIALS AND METHODS This prospective, observational, single-center study was conducted in the intensive care unit (ICU) of the University Medical Center Ho Chi Minh City, from 6/2020-12/2021. Patients aged ≥18 years with sepsis or septic shock according to the Sepsis-3 criteria were included. ROTEM and CCTs were concurrently performed within the first 24 h of ICU admission. RESULTS In total, 161 patients were enrolled. Based on ROTEM, 72.7 % of patients with sepsis/septic shock had coagulation disorders, including 25.5 % hypercoagulation, 54.7 % hypocoagulation, 13.6 % mixed hypo-hypercoagulation patterns, and 18.6 % hyperfibrinolysis. A common mixed disorder subtype was characterized by prolonged initial clotting time (CT) with subsequently increased clot firmness. Fibrinogen levels and maximum clot formation (MCF)-fibtem were strongly correlated (rho = 0.73, p < 0.05). Hypocoagulation was observed more in the septic shock group than in the sepsis group. Compared to survivors, non-survivors had more prolonged CT-extem. CONCLUSIONS ROTEM could identify hypocoagulability, hypercoagulability, mixed hypo-hypercoagulability patterns, and hyperfibrinolysis in patients with sepsis/septic shock. Elevated MCF-fibtem and elevated fibrinogen levels were notably common and strongly correlated. The septic shock group had more hypocoagulation than the sepsis group. Lastly, non-survivors had more prolonged CT-extem than survivors.
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Affiliation(s)
- Hanh-Duyen Bui-Thi
- Department of Intensive Care, University Medical Center Ho Chi Minh City, The University of Medicine and Pharmacy at Ho Chi Minh City, 215 Hong Bang Street, Ward 11, District 5, Ho Chi Minh City, Viet Nam.
| | - Khoi Le Minh
- Department of Science and Training, University Medical Center Ho Chi Minh City, The University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam.
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Buriko Y, Chalifoux NV, Clarkin-Breslin R, Silverstein DC. Comparison of a viscoelastic point-of-care coagulation monitor with thromboelastography in sick dogs with hemostatic abnormalities. Vet Clin Pathol 2023. [PMID: 36798021 DOI: 10.1111/vcp.13198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 08/30/2022] [Accepted: 09/18/2022] [Indexed: 02/18/2023]
Abstract
BACKGROUND Viscoelastic coagulation monitor (VCM-Vet) is a point-of-care device that has been used to characterize hemostatic abnormalities in sick pets but has not been validated in veterinary patients. OBJECTIVES We aimed to compare VCM-Vet and thromboelastography (TEG) in sick dogs with suspected disorders of hemostasis. METHODS Duplicate VCM-Vet tests using untreated native blood performed concurrently on two VCM-Vet machines, and simultaneous TEG tests were performed (one citrated native (CN), and one activated with tissue factor (TF) at a 1:3600 dilution). Each VCM-Vet result was compared with both TF-activated and CN TEG. RESULTS Fifty-three dogs were enrolled. Eleven cases displayed apparent hyperfibrinolysis. Spearman correlation coefficients for individual VCM-Vet devices and CN and TF TEG were obtained between R and CT values and ranged from 0.21 to 0.27, CFT and K (r = 0.60-0.67), angles (r = 0.51-0.62), and MCF and MA (r = 0.85-0.87). Comparison of the two VCM-Vet devices displayed positive correlations for all clot formation parameters with Lin's concordance correlation coefficients of 0.75-0.95. Variable lysis parameter agreement existed between the VCM-Vet devices and VCM-Vet and TEG. When samples were classified as hypercoagulable or coagulopathic, VCM-Vet had a low positive predictive value (17-33%) for the detection of hypercoagulable states and a moderate negative predictive value (64-74%) for the detection of coagulopathy as defined by TEG. CONCLUSIONS VCM-Vet and TEG had variable correlations in clot formation values and a strong correlation for final clot strength. More information is needed to make conclusions about the lysis parameters. Artifact in the fibrinolysis portion of the test can confound the interpretation of VCM-Vet results.
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Affiliation(s)
- Yekaterina Buriko
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Nolan V Chalifoux
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rachel Clarkin-Breslin
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Deborah C Silverstein
- Department of Clinical Sciences and Advanced Medicine, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Sepsis-Induced Coagulopathy: An Update on Pathophysiology, Biomarkers, and Current Guidelines. Life (Basel) 2023; 13:life13020350. [PMID: 36836706 PMCID: PMC9961497 DOI: 10.3390/life13020350] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/16/2023] [Accepted: 01/20/2023] [Indexed: 02/03/2023] Open
Abstract
Significant cross talk occurs between inflammation and coagulation. Thus, coagulopathy is common in sepsis, potentially aggravating the prognosis. Initially, septic patients tend to exhibit a prothrombotic state through extrinsic pathway activation, cytokine-induced coagulation amplification, anticoagulant pathways suppression, and fibrinolysis impairment. In late sepsis stages, with the establishment of disseminated intravascular coagulation (DIC), hypocoagulability ensues. Traditional laboratory findings of sepsis, including thrombocytopenia, increased prothrombin time (PT) and fibrin degradation products (FDPs), and decreased fibrinogen, only present late in the course of sepsis. A recently introduced definition of sepsis-induced coagulopathy (SIC) aims to identify patients at an earlier stage when changes to coagulation status are still reversible. Nonconventional assays, such as the measurement of anticoagulant proteins and nuclear material levels, and viscoelastic studies, have shown promising sensitivity and specificity in detecting patients at risk for DIC, allowing for timely therapeutic interventions. This review outlines current insights into the pathophysiological mechanisms and diagnostic options of SIC.
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9
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Breel JS, Wensing AGCL, Eberl S, Preckel B, Schober P, Müller MCA, Klautz RJM, Hollmann MW, Hermanns H. Patients with infective endocarditis undergoing cardiac surgery have distinct ROTEM profiles and more bleeding complications compared to patients without infective endocarditis. PLoS One 2023; 18:e0284329. [PMID: 37053130 PMCID: PMC10101476 DOI: 10.1371/journal.pone.0284329] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/28/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND The coagulation system is crucial in the pathogenesis of infective endocarditis and undergoes significant changes during course of the disease. However, little is known about the implications of those changes in the perioperative period. Aim of the present study was to delineate the specific coagulation patterns and their clinical consequence in patients undergoing cardiac surgery due to infective endocarditis. METHODS In this single-centre, exploratory, prospective observational study, we investigated the incidence and degree of coagulopathy in patients with (n = 31) and without infective endocarditis (n = 39) undergoing cardiac valve surgery. The primary outcome was the differences between these two groups in rotational thromboelastometry (ROTEM) results before, during and after surgery. The secondary outcomes were the differences between the groups in heparin sensitivity, bleeding complications, and transfusion requirements. RESULTS Most ROTEM parameters in EXTEM, INTEM and FIBTEM assays were significantly altered in patients with infective endocarditis. Clotting time in the EXTEM assay was significantly prolonged in the endocarditis group at all time-points, while all clot firmness parameters (A5, A10 and MCF) were significantly increased. The heparin sensitivity index was significantly lower in the endocarditis group (median index 0.99 vs 1.17s. IU-1.kg-1, p = .008), indicating increased heparin resistance. Patients with infective endocarditis had more bleeding complications as assessed by the universal definition of perioperative bleeding score (OR 3.0, p = .018), and more patients with endocarditis underwent early re-exploration (p = .018). CONCLUSIONS The findings of this exploratory investigation show significantly altered coagulation profiles in patients with infective endocarditis, with concomitant hyper- and hypocoagulability. Furthermore, the incidence of bleeding complications and transfusion requirements were increased in patients with endocarditis. These results show the potential of ROTEM to detect coagulation abnormalities in patients with infective endocarditis. Existing point-of-care coagulation testing guided algorithms for optimizing perioperative coagulation management possibly need to be adjusted for these high-risk patients undergoing cardiac surgery.
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Affiliation(s)
- Jennifer S Breel
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Agnes G C L Wensing
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Susanne Eberl
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Benedikt Preckel
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Patrick Schober
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Marcella C A Müller
- Department of Intensive Care, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Robert J M Klautz
- Department of Cardiac Surgery, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Markus W Hollmann
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Henning Hermanns
- Department of Anaesthesiology, Amsterdam University Medical Centres, Amsterdam, the Netherlands
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Watson O, Pillai S, Howard M, Cezar-Zaldua J, Whitley J, Burgess B, Lawrence M, Hawkins K, Morris K, Evans PA. Impaired fibrinolysis in severe Covid-19 infection is detectable in early stages of the disease. Clin Hemorheol Microcirc 2022; 82:183-191. [PMID: 35694917 DOI: 10.3233/ch-221491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND A significant degree of mortality and morbidity in Covid-19 is due to thromboembolic disease. Coagulopathy has been well described in critically unwell patients on ICU. There is less clear evidence regarding these changes at the time of presentation to the Emergency Department and the progression of disease over time. OBJECTIVE We sought to investigate whether coagulation markers can predict severity and how they change over the disease course. METHODS Patients presenting to a single University Teaching Hospital were recruited and followed up if PCR was positive. Alongside routine blood testing, Rotational Thromboelastometry (ROTEM) was performed. Outcome data was recorded for all patients, and ROTEM values were compared across outcome groups. RESULTS Extem and Intem Maximum Lysis were significantly reduced in those who died or required an ICU admission, indicating a reduced ability to break down clot mass in the most critically unwell patients. CONCLUSION Comparisons between groups demonstrated that one distinguishing feature between those who require ICU admission or die of Covid-19 compared with those who survive a hospital stay to discharge was the extent to which fibrinolysis could occur. Mortality and morbidity in Covid-19 infection appears in part driven by an inability to break down clot mass.
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Affiliation(s)
- O Watson
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - S Pillai
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - M Howard
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - J Cezar-Zaldua
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - J Whitley
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
| | - B Burgess
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board
| | - M Lawrence
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board
| | | | - K Morris
- Cardiff Metropolitan University, UK
| | - P A Evans
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board.,Swansea University, UK
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11
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Lawrence MJ, Evans V, Whitley J, Pillai S, Williams PR, Coulson J, Krishnan M, Slade P, Power K, Morris RHK, Evans PA. The effects of apixaban on clot characteristics in atrial fibrillation: A novel pharmacodynamic biomarker. Pharmacol Res Perspect 2022; 10:e00937. [PMID: 35338612 PMCID: PMC8956932 DOI: 10.1002/prp2.937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 01/09/2023] Open
Abstract
Atrial fibrillation (AF) is a major risk factor for stroke. We aim to characterize AF patients and the effects of apixaban therapy in terms of clot microstructure using gel point analysis, a novel biomarker. Seventy-eight patients were included in the study, 50 Stroke with AF (AF-S), and 28 AF without stroke (AF). Pre- and post-anticoagulation samples were collected: gel point (GP) analysis was performed to obtain (i) TGP (the time taken to reach the GP or the clot formation time) and (ii) df , the fractal dimension of the clot, a quantification of clot fibrin microstructure at the GP. At baseline, the AF-S group had a df = 1.70 (±0.05) and TGP = 306 (±73 s). The AF group had a df = 1.70 ± 0.05 and TGP = 346 ± 78 s, showing a significantly shortened TGP in the stroke group (p = .008). For both groups, apixaban significantly prolonged TGP, p = .005, but resulted in no change in df. Apixaban prolonged clotting time while having no significant impact on the blood's ability to form stable clots (no change in df ). This indicates that apixaban provides protection from the formation of thrombi by reducing clotting kinetics.
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Affiliation(s)
- Matthew J Lawrence
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board, Swansea, UK.,Medical School, Swansea University, Swansea, UK
| | - Vanessa Evans
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board, Swansea, UK.,Medical School, Swansea University, Swansea, UK
| | - Janet Whitley
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board, Swansea, UK.,Medical School, Swansea University, Swansea, UK
| | - Suresh Pillai
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board, Swansea, UK.,Medical School, Swansea University, Swansea, UK
| | | | | | - Manju Krishnan
- Stroke Unit, Swansea Bay University Health Board, Swansea, UK
| | - Peter Slade
- Stroke Unit, Swansea Bay University Health Board, Swansea, UK
| | - Kieron Power
- Pharmacy Department, Swansea Bay University Health Board, Swansea, UK
| | - Roger H K Morris
- School of Applied Science, Cardiff Metropolitan University, Cardiff, UK
| | - Phillip A Evans
- Welsh Centre for Emergency Medicine Research, Swansea Bay University Health Board, Swansea, UK.,Medical School, Swansea University, Swansea, UK
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12
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Almskog LM, Wikman A, Svensson J, Bottai M, Kotormán M, Wahlgren CM, Wanecek M, van der Linden J, Ågren A. Hypercoagulation Detected by Rotational Thromboelastometry Predicts Mortality in COVID-19: A Risk Model Based on a Prospective Observational Study. TH OPEN : COMPANION JOURNAL TO THROMBOSIS AND HAEMOSTASIS 2022; 6:e50-e59. [PMID: 35265789 PMCID: PMC8901374 DOI: 10.1055/a-1725-9221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 12/15/2021] [Indexed: 12/02/2022]
Abstract
Background Severe disease due to the novel coronavirus disease 2019 (COVID-19) has been shown to be associated with hypercoagulation. The aim of this study was to assess the Rotational Thromboelastometry (ROTEM) as a marker of coagulopathy in hospitalized COVID-19 patients. Methods This was a prospective, observational study where patients hospitalized due to a COVID-19 infection were eligible for inclusion. Conventional coagulation tests and ROTEM were taken after hospital admission, and patients were followed for 30 days. A prediction model, including variables ROTEM EXTEM-MCF (Maximum Clot Firmness) which in previous data has been suggested a suitable marker of hypercoagulation, age, and respiratory frequency, was developed using logistic regression to evaluate the probability of death. Results Out of the 141 patients included, 18 (13%) died within 30 days. In the final prediction model, the risk of death within 30 days for a patient hospitalized due to COVID-19 was increased with increased EXTEM-MCF, age, and respiratory frequency. Longitudinal ROTEM data in the severely ill subpopulation showed enhanced hypercoagulation. In an in vitro analysis, no heparin effect on EXTEM-coagulation time (CT) was observed, supporting a severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) effect on prolonged initiation of coagulation. Conclusion Here, we show that hypercoagulation measured with ROTEM predicts 30-day mortality in COVID-19. Longitudinal ROTEM data strengthen the hypothesis of hypercoagulation as a driver of severe disease in COVID-19. Thus, ROTEM may be a useful tool to assess disease severity in COVID-19 and could potentially guide anticoagulation therapy.
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Affiliation(s)
- Lou M. Almskog
- Department of Anaesthesiology and Intensive Care, Capio St. Göran's Hospital, Stockholm, Sweden,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Address for correspondence Lou M. Almskog Department of Molecular Medicine and Surgery, Karolinska University HospitalStockholm, 171 67Sweden
| | - Agneta Wikman
- Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden,Department of CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Svensson
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Karolinska University Hospital, Stockholm, Sweden
| | - Matteo Bottai
- Division of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mariann Kotormán
- Department of Anaesthesiology and Intensive Care, Capio St. Göran's Hospital, Stockholm, Sweden
| | - Carl-Magnus Wahlgren
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Department of Vascular Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Michael Wanecek
- Department of Anaesthesiology and Intensive Care, Capio St. Göran's Hospital, Stockholm, Sweden,Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Jan van der Linden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Ågren
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Coagulation Unit, Hematology Centre, Karolinska University Hospital, Stockholm, Sweden,Department of Clinical Sciences, Danderyd Hospital and Karolinska Institutet, Stockholm, Sweden
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13
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Fibrinolytic Impairment and Mortality in Pediatric Septic Shock: A Single-Center Prospective Observational Study. Pediatr Crit Care Med 2021; 22:969-977. [PMID: 33965991 DOI: 10.1097/pcc.0000000000002759] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Fibrinolytic shutdown is associated with poor prognosis in adult sepsis, but data in the pediatric population are sparse. This study aimed to identify the association between impaired fibrinolysis and mortality in pediatric septic shock. DESIGN A prospective, observational study conducted between August 2019 and August 2020. SETTING PICU at a pediatric tertiary hospital in Hanoi, Vietnam. PATIENTS Fifty-six pediatric patients who met septic shock criteria were enrolled. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Conventional coagulation tests and rotational thromboelastometry were performed at diagnosis. The fibrinolytic activity on extrinsic pathway thromboelastometry was negatively correlated with the Vasoactive-Inotropic Score at 24 hours post-PICU admission, peak lactate level during the first 24 hours, Pediatric Logistic Organ Dysfunction-2 score, and Pediatric Risk of Mortality-III score (all p < 0.05). Compared with patients with nonovert disseminated intravascular coagulation, dysfunction of less than two organs, and who survived, patients with overt disseminated intravascular coagulation, dysfunction of greater than two organs, and who died showed significantly lower fibrinolytic activity, represented by significantly higher lysis indexes (%) and lower maximum lysis (%) (all p < 0.05). The threshold values for prediction of mortality were lysis index 60 minutes greater than 97.5 (area under the curve = 0.86; sensitivity = 73%; specificity = 90%), maximum lysis less than 6.5 (area under the curve = 0.83; sensitivity = 73%; specificity = 87%), and lysis index 45 minutes greater than 99.5 (area under the curve = 0.83; sensitivity = 73%; specificity = 85%). Hypofibrinolysis was associated with prolonged PICU length of stay in survivors and with early mortality in nonsurvivors. CONCLUSIONS Fibrinolytic shutdown in pediatric septic shock is associated with an increase in disease severity and mortality. This highlights the need for further investigations regarding whether fibrinolytic therapy improved the outcome of pediatric septic shock.
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14
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Zhang J, Du HM, Cheng MX, He FM, Niu BL. Role of international normalized ratio in nonpulmonary sepsis screening: An observational study. World J Clin Cases 2021; 9:7405-7416. [PMID: 34616807 PMCID: PMC8464464 DOI: 10.12998/wjcc.v9.i25.7405] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/06/2021] [Accepted: 07/19/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Currently, there is a lack of sepsis screening tools that can be widely used worldwide. Pulmonary sepsis can be of sufficient concern to physicians due to their noticeable symptoms, which usually rely less on screening tools.
AIM To investigate the efficiency of the international normalized ratio (INR) for the early rapid recognition of adult nonpulmonary infectious sepsis.
METHODS This is a prospective observational study. A total of 108 sepsis patients and 106 nonsepsis patients were enrolled according to relevant inclusion and exclusion criteria. Commonly used clinical indicators, such as white blood cell, neutrophil count, lymphocyte count, neutrophil-lymphocyte count ratio (NLCR), platelets (PLT), prothrombin time, INR, activated partial thromboplastin time, and quick Sequential “Sepsis-related” Organ Failure Assessment (qSOFA) scores were recorded within 24 h after admission. The diagnostic performances of these clinical indicators were analyzed and compared through multivariate logistic regression analysis, Spearman correlation, and receiver operating characteristic curve analysis.
RESULTS The INR value of the sepsis group was significantly higher than that of the nonsepsis group. INR has superior diagnostic efficacy for sepsis, with an area under the curve value of 0.918, when those preexisting diseases which significantly affect coagulation function were excluded. The diagnostic efficacy of the INR was more significant than that of NLCR, PLT, and qSOFA (P < 0.05). Moreover, INR levels of 1.17, 1.20, and 1.22 could be used to categorize the relative risk of nonpulmonary infections sepsis into three categories: low, medium and high risk, respectively.
CONCLUSION The INR is a promising and easily available biomarker for diagnosis, and it can be used as one of the indicators for early screening of adult nonpulmonary infectious sepsis. When its value is higher than the optimal cutoff value (1.22), high vigilance is required for adult nonpulmonary infectious sepsis.
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Affiliation(s)
- Jing Zhang
- Department of Emergency and Intensive Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hui-Min Du
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ming-Xiang Cheng
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Fa-Ming He
- Department of Emergency and Intensive Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Bai-Lin Niu
- Department of Emergency and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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15
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Larsen JB, Hvas AM. Fibrinolytic Alterations in Sepsis: Biomarkers and Future Treatment Targets. Semin Thromb Hemost 2021; 47:589-600. [PMID: 33878784 DOI: 10.1055/s-0041-1725096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Sepsis is a life-threatening condition which develops as a dysregulated immune response in the face of infection and which is associated with profound hemostatic disturbances and in the most extreme cases disseminated intravascular coagulation (DIC). In addition, the fibrinolytic system is subject to alterations during infection and sepsis, and impaired fibrinolysis is currently considered a key player in sepsis-related microthrombus formation and DIC. However, we still lack reliable biomarkers to assess fibrinolysis in the clinical setting. Furthermore, drugs targeting the fibrinolytic system have potential value in sepsis patients with severe fibrinolytic disturbances, but these are still being tested in the preclinical stage. The present review provides an overview of key fibrinolytic changes in sepsis, reviews the current literature on potential laboratory markers of altered fibrinolysis in adult sepsis patients, and discusses future perspectives for diagnosis and treatment of fibrinolytic disturbances in sepsis patients.
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Affiliation(s)
- Julie Brogaard Larsen
- Thrombosis and Haemostasis Research Unit, Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Anne-Mette Hvas
- Thrombosis and Haemostasis Research Unit, Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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16
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Hu YL, McRae HL, Refaai MA. Efficacy of viscoelastic hemostatic assay testing in patients with sepsis-induced disseminated intravascular coagulation. Eur J Haematol 2021; 106:873-875. [PMID: 33682140 DOI: 10.1111/ejh.13617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Yue Lin Hu
- Department of Pathology and Laboratory Medicine, Transfusion Medicine Division, University of Rochester Medical Center, Rochester, NY, USA
| | - Hannah L McRae
- Department of Pathology and Laboratory Medicine, Transfusion Medicine Division, University of Rochester Medical Center, Rochester, NY, USA
| | - Majed A Refaai
- Department of Pathology and Laboratory Medicine, Transfusion Medicine Division, University of Rochester Medical Center, Rochester, NY, USA
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17
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Mitrovic M, Sabljic N, Cvetkovic Z, Pantic N, Zivkovic Dakic A, Bukumiric Z, Libek V, Savic N, Milenkovic B, Virijevic M, Vucinic V, Milosevic I, Pravdic Z, Suvajdzic N, Fareed J, Antic D. Rotational thromboelastometry (ROTEM) profiling of COVID-19 patients. Platelets 2021; 32:690-696. [PMID: 33561381 DOI: 10.1080/09537104.2021.1881949] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We evaluated coagulation abnormalities via traditional tests and rotational thromboelastometry (ROTEM) in a group of 94 patients with confirmed SARS-CoV-2 infection and different severity of pneumonia (34 moderate, 25 severe, 35 critical) with the hypothesis that ROTEM parameters differed by coronavirus disease 2019 (COVID-19) severity. Shorter than normal clotting time (CT) and higher than normal maximum clot firmness (MCF) in extrinsic rotational thromboelastometry (EXTEM) and fibrinogen rotational thromboelastometry (FIBTEM), shorter than normal EXTEM clot formation time (CFT), and higher than normal α-angle were classified as markers of hypercoagulable state. Increment in the number of patients with ≥2 hypercoagulable parameters, higher EXTEM (P = .0001), FIBTEM MCF (P = .0001) and maximum lysis decrement (P = .002) with increment in disease severity was observed (P = .0001). Significant positive correlations between IL6 and CT EXTEM (P = .003), MCF EXTEM (P = .033), MCF FIBTEM (P = .01), and negative with ML EXTEM (P = .006) were seen. Our findings based on analysis of different disease severity groups confirmed that a hypercoagulable ROTEM pattern characterized by clot formation acceleration, high clot strength, and reduced fibrinolysis was more frequent in advanced disease groups and patients with high IL6. These results supported the need for different thromboprophylaxis approaches for different severity groups.
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Affiliation(s)
- Mirjana Mitrovic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nikica Sabljic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia
| | - Zorica Cvetkovic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Clinical Hospital Center Zemun, Zemun, , Serbia
| | - Nikola Pantic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia
| | | | - Zoran Bukumiric
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vesna Libek
- Clinical Hospital Center Zemun, Zemun, , Serbia
| | - Nebojsa Savic
- Clinic of Vascular Surgery, Clinical Center of Serbia, Belgrade, Serbia
| | - Branislava Milenkovic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Clinic of Pulmology, Clinical Center of Serbia, Belgrade, Serbia
| | - Marijana Virijevic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Violeta Vucinic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Clinic of Pulmology, Clinical Center of Serbia, Belgrade, Serbia
| | - Ivana Milosevic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Clinic for Infectious and Tropical Disease, Clinical Center of Serbia, Belgrade, Serbia
| | - Zlatko Pravdic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia
| | - Nada Suvajdzic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Jawed Fareed
- Departments of Pathology and Pharmacology, Loyola University Center, Maywood, Illinois, USA
| | - Darko Antic
- Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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18
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Adelborg K, Larsen JB, Hvas AM. Disseminated intravascular coagulation: epidemiology, biomarkers, and management. Br J Haematol 2021; 192:803-818. [PMID: 33555051 DOI: 10.1111/bjh.17172] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Disseminated intravascular coagulation (DIC) is a systemic activation of the coagulation system, which results in microvascular thrombosis and, simultaneously, potentially life-threatening haemorrhage attributed to consumption of platelets and coagulation factors. Underlying conditions, e.g. infection, cancer, or obstetrical complications are responsible for the initiation and propagation of the DIC process. This review provides insights into the epidemiology of DIC and the current understanding of its pathophysiology. It details the use of diagnostic biomarkers, current diagnostic recommendations from international medical societies, and it provides an overview of emerging diagnostic and prognostic biomarkers. Last, it provides guidance on management. It is concluded that timely and accurate diagnosis of DIC and its underlying condition is essential for the prognosis. Treatment should primarily focus on the underlying cause of DIC and supportive treatment should be individualised according to the underlying aetiology, patient's symptoms and laboratory records.
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Affiliation(s)
- Kasper Adelborg
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Denmark
| | - Julie B Larsen
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Anne-Mette Hvas
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Denmark
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19
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Tuan TA, Ha NTT, Xoay TD, My TTK, Nghiem LT, Dien TM. Hypocoagulable Tendency on Thromboelastometry Associated With Severity and Anticoagulation Timing in Pediatric Septic Shock: A Prospective Observational Study. Front Pediatr 2021; 9:676565. [PMID: 34150689 PMCID: PMC8206499 DOI: 10.3389/fped.2021.676565] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To identify whether coagulation profiles using thromboelastometry are associated with outcomes in pediatric septic shock. The primary outcomes were the development of disseminated intravascular coagulation (DIC) and the severity of the pediatric intensive care unit (PICU) existing scoring systems, while the secondary outcome was hospital mortality. This study aimed to contribute to current findings of the limitations of conventional tests in determining the optimal timing of anticoagulation in sepsis. Design: A prospective, observational study conducted between August 2019 and August 2020. Setting: PICU at a pediatric tertiary hospital in Hanoi, Vietnam. Patients: Fifty-five pediatric patients who met the septic shock criteria were enrolled. Measurements and Main Results: Fifty-five patients with septic shock were recruited. At the time of diagnosis, thromboelastometry revealed normocoagulability, hypercoagulability, and hypocoagulability in 29, 29, and 42% of the patients, respectively (p > 0.05); however, most patients in the overt DIC and non-survival groups progressed to hypocoagulability (82 and 64%, respectively). The overt DIC, PELOD-2 > 8, PRISM-III > 11, and non-survival group had a significant hypocoagulable tendency according to thromboelastometry parameters [prolonged clotting time (CT) and clot formation time (CFT); and reduced α-angle (α), maximum clot firmness (MCF), thrombodynamic potential index (TPI)] compared to the non-overt DIC, PELOD-2 ≤ 8, PRISM-III score ≤ 11 and survival group (p < 0.05). Conventional parameters between the normocoagulable and hypercoagulable groups were not different (p > 0.05). Hypocoagulability was characterized by lower platelet count and fibrinogen level, higher prolonged prothrombin time (PT), international normalized ratio (INR), and activated partial thromboplastin time (APTT), and higher D-dimer level than in hypercoagulability (p < 0.05). Hypocoagulable tendency on thromboelastometry had a higher hazard at a PT > 16.1 s [area under the curve (AUC) = 0.747, odds ratio (OR) = 10.5, p = 0.002], INR > 1.4 (AUC = 0.754, OR = 6.9, p = 0.001), fibrinogen <3.3 g/L (AUC = 0.728, OR = 9.9, p = 0.004), and D-dimer > 3,863 ng/mL (AUC = 0.728, OR = 6.7, p = 0.004). Conclusions: Hypocoagulable tendency using thromboelastometry is associated with the severity of septic shock. Conventional coagulation tests may fail to detect hypercoagulability, which is crucial in determining anticoagulation timing.
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Affiliation(s)
- Ta Anh Tuan
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam.,University of Medicine and Pharmacy, Vietnam National University, Hanoi, Vietnam
| | - Nguyen Thi Thu Ha
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Tran Dang Xoay
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Tran Thi Kieu My
- Division of Hematology, Hanoi Medical University, Hanoi, Vietnam
| | - Luong Thi Nghiem
- Hematology Department, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Tran Minh Dien
- University of Medicine and Pharmacy, Vietnam National University, Hanoi, Vietnam.,Surgical Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
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20
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Selby R. "TEG talk": expanding clinical roles for thromboelastography and rotational thromboelastometry. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2020; 2020:67-75. [PMID: 33275705 PMCID: PMC7727516 DOI: 10.1182/hematology.2020000090] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Viscoelastic assays (VEAs) that include thromboelastography and rotational thromboelastometry add value to the investigation of coagulopathies and goal-directed management of bleeding by providing a complete picture of clot formation, strength, and lysis in whole blood that includes the contribution of platelets, fibrinogen, and coagulation factors. Conventional coagulation assays have several limitations, such as their lack of correlation with bleeding and hypercoagulability; their inability to reflect the contribution of platelets, factor XIII, and plasmin during clot formation and lysis; and their slow turnaround times. VEA-guided transfusion algorithms may reduce allogeneic blood exposure during and after cardiac surgery and in the emergency management of trauma-induced coagulopathy and hemorrhage. However, the popularity of VEAs for other indications is driven largely by extrapolation of evidence from cardiac surgery, by the drawbacks of conventional coagulation assays, and by institution-specific preferences. Robust diagnostic studies validating and standardizing diagnostic cutoffs for VEA parameters and randomized trials comparing VEA-guided algorithms with standard care on clinical outcomes are urgently needed. Lack of such studies represents the biggest barrier to defining the role and impact of VEA in clinical care.
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Affiliation(s)
- Rita Selby
- Department of Laboratory Medicine and Pathobiology and Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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21
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Boscolo A, Spiezia L, De Cassai A, Pasin L, Pesenti E, Zatta M, Zampirollo S, Andreatta G, Sella N, Pettenuzzo T, Rose K, Simioni P, Navalesi P. Are thromboelastometric and thromboelastographic parameters associated with mortality in septic patients? A systematic review and meta-analysis. J Crit Care 2020; 61:5-13. [PMID: 33049490 DOI: 10.1016/j.jcrc.2020.09.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/21/2020] [Accepted: 09/30/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Thromboelastometry/elastography (ROTEM/TEG) showed promising results for diagnosis of sepsis-induced coagulopathy, but their association with the outcome is unclear. Our aim was to assess any difference in ROTEM/TEG measurements between septic survivors and non-survivors. METHODS Pubmed, Web of Science, Embase and Cochrane Library databases were investigated. The research aimed to include any randomized or observational study: i) on septic adult patients admitted to Intensive Care Unit (ICU) or Emergency Department (ED); ii) including ROTEM/TEG; iii) assessing mortality. RESULTS Seven prospective and four retrospective observational studies (952 patients) were included. According to the INTEM/kaolin-assay, clotting time (CT)/R (standardized mean difference(SMD) -0.29, 95% CI -0.49 to -0.09, p = 0.004) and clot formation time (CFT)/K (SMD -0.42, 95% CI -0.78 to -0.06, p = 0.02) were shorter in survivors. According to the EXTEM-assay, CT was shorter (MD -11.66 s, 95% CI -22.59 to -0.73, p = 0.04), while MCF was higher (MD 3.49 mm, 95% CI 0.43 to 6.55, p = 0.03) in survivors. A hypocoagulable profile was more frequent in non-survivors (OR 0.31, 95%CI 0.18 to 0.55, p < 0.0001). Overall, the risk of bias of the included studies was moderate and the quality of evidence low. CONCLUSIONS Hypocoagulability and lower MCF in EXTEM may be associated with higher mortality in sepsis.
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Affiliation(s)
- Annalisa Boscolo
- Anaesthesia and Intensive Care Unit, Padua University Hospital, Italy.
| | - Luca Spiezia
- Department of Medicine, Thrombotic and Haemorrhagic Diseases Unit, University of Padua, Italy
| | | | - Laura Pasin
- Anaesthesia and Intensive Care Unit, Padua University Hospital, Italy
| | - Elisa Pesenti
- Department of Medicine-DIMED, University of Padua, Italy
| | - Matteo Zatta
- Department of Medicine-DIMED, University of Padua, Italy
| | | | | | - Nicolò Sella
- Department of Medicine-DIMED, University of Padua, Italy
| | | | - Kirstin Rose
- Department of Obstetrics and Gynaecology, Royal Alexandria Hospital, Paisley, Scotland, United Kingdom
| | - Paolo Simioni
- Department of Medicine, Thrombotic and Haemorrhagic Diseases Unit, University of Padua, Italy
| | - Paolo Navalesi
- Anaesthesia and Intensive Care Unit, Padua University Hospital, Italy; Department of Medicine-DIMED, University of Padua, Italy
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22
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Raval JS, Burnett AE, Rollins-Raval MA, Griggs JR, Rosenbaum L, Nielsen ND, Harkins MS. Viscoelastic testing in COVID-19: a possible screening tool for severe disease? Transfusion 2020; 60:1131-1132. [PMID: 32374920 PMCID: PMC7267656 DOI: 10.1111/trf.15847] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Jay S Raval
- Department of Pathology, University of New Mexico, Albuquerque, New Mexico, USA
| | - Allison E Burnett
- Department of Pharmacy, University of New Mexico, Albuquerque, New Mexico, USA
| | | | - Joseph R Griggs
- Department of Pathology, University of New Mexico, Albuquerque, New Mexico, USA
| | - Lizabeth Rosenbaum
- Department of Pathology, University of New Mexico, Albuquerque, New Mexico, USA.,Vitalant, Albuquerque, New Mexico, USA
| | - Nathan D Nielsen
- Department of Medicine, University of New Mexico, Albuquerque, New Mexico, USA
| | - Michelle S Harkins
- Department of Medicine, University of New Mexico, Albuquerque, New Mexico, USA
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23
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Kovalic AJ, Khan MA, Malaver D, Whitson MJ, Teperman LW, Bernstein DE, Singal A, Satapathy SK. Thromboelastography versus standard coagulation testing in the assessment and reversal of coagulopathy among cirrhotics: a systematic review and meta-analysis. Eur J Gastroenterol Hepatol 2020; 32:291-302. [PMID: 32012141 DOI: 10.1097/meg.0000000000001588] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The utility of thromboelastography/thromboelastometry currently has unvalidated clinical benefit in the assessment and reversal of coagulopathy among cirrhotic patients as compared to standard coagulation testing. A novel systematic review and meta-analysis was conducted in order to assess pooled outcome data among patients receiving thromboelastography/thromboelastometry as compared to standard coagulation testing. As compared to standard coagulation testing, there was a significant reduction in the number of patients requiring pRBC, platelet, and fresh frozen plasma transfusions among thromboelastography/thromboelastometry group with pooled OR 0.53 (95% CI 0.32-0.85; P = 0.009), 0.29 (95% CI 0.12-0.74; P = 0.009), and 0.19 (95% CI 0.12-0.31; P < 0.00001), respectively. Similarly, there was a significant reduction in number of pRBC, platelet, and fresh frozen plasma units transfused in the thromboelastography/thromboelastometry group with pooled MD -1.53 (95% CI -2.86 to -0.21; P = 0.02), -0.57 (95% CI -1.06 to -0.09; P = 0.02), and -2.71 (95% CI -4.34 to -1.07; P = 0.001), respectively. There were significantly decreased total bleeding events with pooled OR 0.54 (95% CI 0.31-0.94; P = 0.03) and amount of intraoperative bleeding during liver transplantation with pooled MD -1.46 (95% CI -2.49 to -0.44; P = 0.005) in the thromboelastography/thromboelastometry group. Overall, there was no significant difference in mortality between groups with pooled OR 0.91 (95% CI 0.63-1.30; P = 0.60). As compared to standard coagulation testing, a thromboelastography/thromboelastometry-guided approach to the assessment and reversal of cirrhotic coagulopathy improves overall number of patients exposed to blood product transfusions, quantity of transfusions, and bleeding events.
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Affiliation(s)
- Alexander J Kovalic
- Department of Internal Medicine, Wake Forest Baptist Medical Center, Winston Salem, North Carolina
| | - Muhammad Ali Khan
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Diego Malaver
- Department of Internal Medicine, Section of Cardiology, Wake Forest Baptist Medical Center, Winston Salem, North Carolina
| | - Matthew J Whitson
- Department of Internal Medicine, Division of Gastroenterology, Barbara and Zucker School of Medicine for Hofstra/Northwell Health
| | - Lewis W Teperman
- Department of Internal Medicine, Division of Transplantation, Sandra Atlas Bass Center for Liver Diseases and Transplantation, Barbara and Zucker School of Medicine for Hofstra/Northwell Health
| | - David E Bernstein
- Department of Internal Medicine, Division of Transplantation, Sandra Atlas Bass Center for Liver Diseases and Transplantation, Barbara and Zucker School of Medicine for Hofstra/Northwell Health.,Department of Internal Medicine, Division of Hepatology, Sandra Atlas Bass Center for Liver Diseases and Transplantation, Barbara and Zucker School of Medicine for Hofstra/Northwell Health, Manhasset, New York
| | - Ashwani Singal
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of South Dakota Sanford School of Medicine and Avera Transplant Institute, Division of Hepatology, Sioux Falls, South Dakota, USA
| | - Sanjaya K Satapathy
- Department of Internal Medicine, Division of Transplantation, Sandra Atlas Bass Center for Liver Diseases and Transplantation, Barbara and Zucker School of Medicine for Hofstra/Northwell Health.,Department of Internal Medicine, Division of Hepatology, Sandra Atlas Bass Center for Liver Diseases and Transplantation, Barbara and Zucker School of Medicine for Hofstra/Northwell Health, Manhasset, New York
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24
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Sabljić N, Mitrović M. Clinical utility of rotational thromboelastometry in detecting hemostatic disorders. MEDICINSKI PODMLADAK 2020. [DOI: 10.5937/mp71-27853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Hemostasis represents an equilibrium between procoagulant and anticoagulant processes, but once this balance is shifted to one side, it leads to coagulopathy presented by pathological bleeding or thrombosis. Many conditions could cause coagulopathy. The most common are sepsis, severe traumas and malignancies. Widely used conventional coagulation tests (CCTs), focused only on clot initiation, are primary used to detect hypocoagulability. Viscoelastographic tests (VET), like rotational thromboelastometry (ROTEM), can detect problems in different stages of coagulation, from initiation thought clot elongation and propagation, to the clot lysis and might reveal both, hypercoagulability and hypocoagulability. Rotational thromboelastometry have gained popularity in the care of patients with TIC, as a tool to guide transfusion support. Nowadays it is widely used in other medical specialties, as well. Several studies in septic patients pointed out hypocoagulable ROTEM pattern as a predictor of poor prognosis. Additionally, there is great interest of ROTEM usage in malignancies, although limited research is currently available. It suggests ROTEM have the ability to identify a patient in high risk of thrombosis. Further investigation trough randomized studies is needed to confirm ROTEM utility and to help in making a consensus about its use in different medical occasions.
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25
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Boscolo A, Spiezia L, Campello E, Consolaro EM, Ori C, Simioni P. The prognostic role of ThromboDynamic Index in patients with severe sepsis. Intern Emerg Med 2020; 15:163-168. [PMID: 31267438 DOI: 10.1007/s11739-019-02137-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 06/25/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Annalisa Boscolo
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, Padova University Hospital, Padua, Italy
| | - Luca Spiezia
- Thrombotic and Haemorrhagic Diseases Unit, Department of Medicine-DIMED, Padova University Hospital, 105, Via Ospedale Civile, 35100, Padua, Italy
| | - Elena Campello
- Thrombotic and Haemorrhagic Diseases Unit, Department of Medicine-DIMED, Padova University Hospital, 105, Via Ospedale Civile, 35100, Padua, Italy
| | - Elisabetta Maria Consolaro
- Thrombotic and Haemorrhagic Diseases Unit, Department of Medicine-DIMED, Padova University Hospital, 105, Via Ospedale Civile, 35100, Padua, Italy
| | - Carlo Ori
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, Padova University Hospital, Padua, Italy
| | - Paolo Simioni
- Thrombotic and Haemorrhagic Diseases Unit, Department of Medicine-DIMED, Padova University Hospital, 105, Via Ospedale Civile, 35100, Padua, Italy.
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26
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Scarlatescu E, Juffermans NP, Thachil J. The current status of viscoelastic testing in septic coagulopathy. Thromb Res 2019; 183:146-152. [PMID: 31678709 DOI: 10.1016/j.thromres.2019.09.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/11/2019] [Accepted: 09/16/2019] [Indexed: 12/26/2022]
Abstract
Sepsis can be associated with different degrees of coagulopathy, ranging from a mild activation of the coagulation system to disseminated intravascular coagulation (DIC). The evaluation of haemostasis in the context of sepsis is important since it has been shown that anticoagulant therapies were beneficial mainly in patients with sepsis-induced DIC, but not in the general population of septic patients. Sepsis-induced haemostatic disturbances are not adequately reflected by standard coagulation tests (SCTs) which only consider the plasmatic components of the haemostatic system and not the cellular components. In addition, SCTs only assess the initiation phase of coagulation and reflect the activity of pro-coagulant factors, but lack sensitivity for the anticoagulant drive and the fibrinolytic activity. Viscoelastic tests (VET) are whole-blood tests which can assess clot formation and dissociation, and the contribution of both plasmatic and cellular components with a shorter turnaround time compared to SCTs. The use of VET in septic patients has proved useful for the assessment of the fibrinolytic activity, detecting hypercoagulable status and for the diagnosis of DIC and mortality risk prediction. While having relevant advantages over SCTs, the VET also present some blind spots or limitations leaving space for future improvement by the development of new reagents or new viscoelastic parameters.
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Affiliation(s)
- Ecaterina Scarlatescu
- Department of Anaesthesia and Intensive Care, Fundeni Clinical Institute, Bucharest, Romania.
| | - Nicole P Juffermans
- Department of Intensive Care, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands
| | - Jecko Thachil
- Department of Haematology, Manchester Royal Infirmary, Manchester, United Kingdom
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27
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Saini A, Spinella PC, Ignell SP, Lin JC. Thromboelastography Variables, Immune Markers, and Endothelial Factors Associated With Shock and NPMODS in Children With Severe Sepsis. Front Pediatr 2019; 7:422. [PMID: 31681719 PMCID: PMC6814084 DOI: 10.3389/fped.2019.00422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/03/2019] [Indexed: 01/17/2023] Open
Abstract
Objective: Evaluate hemostatic dysfunction in pediatric severe sepsis by thromboelastography (TEG) and determine if TEG parameters are associated with new or progressive multiple organ dysfunction syndrome (NPMODS) or shock, defined as a lactate ≥2mmol/L. We explored the relationship between TEG variables, selective cytokines, and endothelial factors. Design: Prospective observational. Setting: Single-center, quaternary care pediatric intensive care unit. Patients: Children aged 6- months to 14- years with severe sepsis with expected PICU stay for >72 h. Interventions: None. Measurements and Main Results: Twenty-eight children were enrolled with median (IQR) age of 7.3 years (4.4-11.4), PELOD score (study day-1) of 11(1.25-13), and PICU length of stay of 10 days (5-28). TEG-defined hypercoagulable state occurred most commonly in 73% (94/129) of samples, followed by hypocoagulable state in 7.8% (10/129) and mixed coagulation state in 1.5% (2/129) of samples in the study cohort. In contrast, hypocoagulable state occurred most commonly in 66% (98/148) of samples based on standard coagulation parameters. In the seven children who developed shock with NPMODS compared to eight patients with shock without NPMODS and 12 patients with severe sepsis only, we found more profound coagulopathy [thrombocytopenia (p = 0.04), elevated INR (p = 0.038), low fibrinogen level (p = 0.049), and low TEG-G value (p = 0.01)] and higher peak of interleukin-6 (p = 0.0014) and IL-10 (p = 0.007). Peak lactate in the first 5 study days had moderate correlation with standard coagulation assays, TEG parameters, and selective cytokines. Peak lactate did not correlate with markers of endothelial activation. Lowest TEG -G value had moderate correlation with peak IL-10 (ρ -0.442, p =0.019), peak VCAM (ρ - 0.495, p = 0.007), and peak lactate (ρ -0.542, p = 0.004) in the first 5 study days. A combination of TEG-G value and IL-6 concentration best discriminated children with shock and NPMODS [AUC 0.979 (95%CI 0.929-1.00), p < 0.001]. Conclusion: This exploratory analysis of hemostasis dysfunction on TEG in pediatric severe sepsis suggests that while hypercoagulability is more common, a hypocoagulable state is associated with shock and NPMODS. In addition, TEG abnormalities are also associated with immune and endothelial factors. A larger cohort study is needed to validate these findings.
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Affiliation(s)
- Arun Saini
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Philip C Spinella
- Division of Critical Care Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States
| | - Steven P Ignell
- Division of Critical Care Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States
| | - John C Lin
- Division of Critical Care Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States
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28
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Thromboelastometric prediction of mortality using the kinetics of clot growth in critically ill septic patients. Blood Coagul Fibrinolysis 2018; 29:533-539. [PMID: 29985193 DOI: 10.1097/mbc.0000000000000757] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
: Sepsis induces alterations in blood coagulation which are associated with mortality. Using rotational thromboelastometry (ROTEM), these states are often characterized by changes in parameters representing terminal clot lysis. However, the ROTEM changes are often subtle, making them difficult to recognize and interpret. The objective of this study is to evaluate a new ROTEM clot velocity parameter representing clot formation kinetics in septic ICU patients. We hypothesized that this time-based parameter was significantly different in critically ill septic survivors vs. nonsurvivors. This retrospective observational study included severe sepsis and septic shock patients having a minimum of two organ dysfunctions by Sequential Organ Failure Assessment criteria (study group), and a control group of healthy adults without infection . ROTEM with EXTEM activation was performed in all groups. The time from maximal clot formation velocity to zero velocity, representing the latter portion of time during active clot formation prior to achieving maximal clot firmness (t-AUCi) was calculated along with other ROTEM parameters and compared between septic survivors, nonsurvivors and healthy controls. A total of 76 septic patients, of which 26.3%, survived, were included in the study group, and 26 healthy control individuals were included in the control group. t-AUCi correlated with terminal clot lysis (P < 0.001), and was significantly prolonged in septic nonsurvivors compared with survivors and healthy controls (P < 0.001). t-AUCi also differentiated nonsurvivors vs. survivors among those patients having similar ROTEM lysis indices. t-AUCi was useful to differentiate critically ill septic patients, and could be useful to identify septic patients with high-risk of ICU mortality.
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