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Bareille M, Lecompte T, Mullier F, Roullet S. Are Viscoelastometric Assays of Old Generation Ready for Disposal? Comment on Volod et al. Viscoelastic Hemostatic Assays: A Primer on Legacy and New Generation Devices. J. Clin. Med. 2022, 11, 860. J Clin Med 2023; 12:jcm12020477. [PMID: 36675406 PMCID: PMC9866463 DOI: 10.3390/jcm12020477] [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: 09/27/2022] [Revised: 11/17/2022] [Accepted: 12/29/2022] [Indexed: 01/11/2023] Open
Abstract
With the advent of new viscoelastometric hemostatic assay (VHA) devices, with ready-to-use cartridge reagents allowing for their use by people without special laboratory skills, the appreciation of the actual clinical value of VHAs in settings such as severe trauma, post-partum hemorrhage, cardiac surgery and liver transplantation still needs to be fully validated. While two of the newest versions remain based on a 'cup and pin' system (ROTEM® sigma, ClotPro®), two other new devices (TEG® 6s, Quantra®) rely on very different technologies: clotting blood is no longer in contact with the probe and challenged by oscillation of one of the components but explored with ultrasound exposure. A systematic literature search (including Sonoclot®) retrieved 20 observational studies (19 prospective). Most studies pointed to imperfect agreements, highlighting the non-interchangeability of devices. Only a few studies, often with a limited number of patients enrolled, used a clinical outcome. No study compared VHA results with conventional laboratory assays obtained through a rapid tests panel. Clinical evidence of the utility of the new VHAs largely remains to be proven through randomized clinical trials, with clinically relevant outcomes, and compared to rapid panel hemostasis testing. The availability of new, improved VHA devices provides an impetus and an opportunity to do so.
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Affiliation(s)
- Marion Bareille
- CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Université Catholique de Louvain, 5530 Yvoir, Belgium
| | - Thomas Lecompte
- Pharmacy Department, University of Namur, 5000 Namur, Belgium
- Université de Lorraine, 54000 Nancy, France
| | - François Mullier
- CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Université Catholique de Louvain, 5530 Yvoir, Belgium
- Correspondence:
| | - Stéphanie Roullet
- Laboratory for Hemostasis, Inflammation & Thrombosis (HITh), Unité Mixte de Recherche (UMR)-1176, Institut National de la Santé et de la Recherche Médicale (Inserm), Université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France
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Velleca A, Shullo MA, Dhital K, Azeka E, Colvin M, DePasquale E, Farrero M, García-Guereta L, Jamero G, Khush K, Lavee J, Pouch S, Patel J, Michaud CJ, Shullo M, Schubert S, Angelini A, Carlos L, Mirabet S, Patel J, Pham M, Urschel S, Kim KH, Miyamoto S, Chih S, Daly K, Grossi P, Jennings D, Kim IC, Lim HS, Miller T, Potena L, Velleca A, Eisen H, Bellumkonda L, Danziger-Isakov L, Dobbels F, Harkess M, Kim D, Lyster H, Peled Y, Reinhardt Z. The International Society for Heart and Lung Transplantation (ISHLT) Guidelines for the Care of Heart Transplant Recipients. J Heart Lung Transplant 2022; 42:e1-e141. [PMID: 37080658 DOI: 10.1016/j.healun.2022.10.015] [Citation(s) in RCA: 117] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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3
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Velleca A, Shullo MA, Dhital K, Azeka E, Colvin M, DePasquale E, Farrero M, García-Guereta L, Jamero G, Khush K, Lavee J, Pouch S, Patel J, Michaud CJ, Shullo M, Schubert S, Angelini A, Carlos L, Mirabet S, Patel J, Pham M, Urschel S, Kim KH, Miyamoto S, Chih S, Daly K, Grossi P, Jennings D, Kim IC, Lim HS, Miller T, Potena L, Velleca A, Eisen H, Bellumkonda L, Danziger-Isakov L, Dobbels F, Harkess M, Kim D, Lyster H, Peled Y, Reinhardt Z. The International Society for Heart and Lung Transplantation (ISHLT) Guidelines for the Care of Heart Transplant Recipients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Kumar A, Joshi S, Ghumman B, Chaudhary V. Comparison of the predictive value of thromboelastography and Sonoclot analysis for postoperative bleeding in children undergoing corrective surgery for cyanotic congenital heart disease. Med J Armed Forces India 2022; 78:413-421. [PMID: 36267513 PMCID: PMC9577242 DOI: 10.1016/j.mjafi.2020.08.008] [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: 11/17/2019] [Accepted: 08/19/2020] [Indexed: 11/20/2022] Open
Abstract
Background The aim of the study was to compare the predictive value of Sonoclot analysis and thromboelastography (TEG) for postoperative bleeding in children younger than 12 years coming for cardiac surgery for congenital cyanotic heart disease. Methods This is a prospective, observational study carried out in a single tertiary care military hospital. Ninety patients of the paediatric age group undergoing bypass cardiac surgery for correction of congenital cyanotic heart defect were included in the study. Laboratory-derived values to assess coagulation status (prothrombin time, international normalisation ratio, activated partial thromboplastin time) and point-of-care Sonoclot- and TEG-derived parameters were noted at the start of surgery and postoperatively in all patients. Bleeders were predefined on the basis of chest tube drainage. Results The incidence of bleeders was 42.2% (38/90 patients), whereas 57.8% (52/90 patients) were non-bleeders. The postoperative R value and preoperative gbPF test were predictive for postoperative bleeders on multivariate analysis. Postoperative gbPF had the highest area under the curve (0.72), with a cut-off value of 1.75, and gbPF had 82% sensitivity and 71% specificity in predicting significant postoperative bleeding in paediatric cyanotic congenital heart surgeries. Transfusion requirements and mechanical ventilation duration were higher in bleeders; however; length of intensive care unit stay, incidence of sepsis and mortality were similar in both the groups. Conclusion Bleeding in patients undergoing corrective surgery for cyanotic congenital heart disease could be predicted by the preoperative gbPF and postoperative R value. Among these, preoperative gbPF has the maximum predictive value.
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Affiliation(s)
- Alok Kumar
- Classified Specialist (Anaesthesia & CT Anaesthesia), Army Hospital (R&R), New Delhi, India
| | - Saajan Joshi
- Senior Adviser (Anaesthesia & Trained in Paed Anaesthesia), Army Hospital (R&R), India
| | - B.P.S. Ghumman
- Consultant (Anaesthesia & CT Anaesthesia), Fortis Hospital, Mohali, India
| | - Vishal Chaudhary
- Senior Adviser & HOD (Anaesthesia & CT Anaesthesia), AICTS, Pune, India
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Gauger MS, Kaufmann P, Kamber F, Quitt J, Berdajs D, Bolliger D, Mauermann E. Rotational Thromboelastometry Values After On-Pump Cardiac Surgery - A Retrospective Cohort Study. Semin Cardiothorac Vasc Anesth 2022; 26:209-220. [PMID: 35616448 DOI: 10.1177/10892532221088216] [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: 11/17/2022]
Abstract
BACKGROUND Viscoelastic coagulation monitoring is recommended for coagulation management after cardiac surgery, but optimum target values are poorly defined. AIMS To determine "to-be-expected" values in rotational thromboelastometry (ROTEM) after heparin reversal, to correlate ROTEM parameters with fibrinogen levels and platelet count, and to estimate the effect of hemoglobin levels on these measurements. METHODS We retrospectively analyzed 571 consecutive adult patients undergoing cardiac surgery with cardiopulmonary bypass from 12/2018 to 08/2020. ROTEM and conventional laboratory measurements were performed 5 to 10 minutes after protamine administration. RESULTS Clotting times in EXTEM, INTEM, and FIBTEM were significantly prolonged (72.6%, 96.1%, and 31.8% above reference ranges, respectively). Clot firmness parameters in EXTEM and INTEM were relevantly reduced (7.9% to 14.4% and 9.1% to 32.3% below the reference ranges, respectively). There was an excellent linear correlation of FIBTEM amplitude after 10 min (A10) and of maximal clot firmness (MCF) with fibrinogen concentrations (r = .81 and .80). Areas under receiver operating characteristic (AUROC) for identifying hypofibrinogenemia <1.5 g/L were between .80 and .87. No effect of hematocrit was observed. We also found a linear correlation of EXTEM, INTEM, and EXTEM-FIBTEM at both A10 and MCF with platelet counts (.32 to .68). The AUROCs for identifying thrombocytopenia (<100,000/μL) were .79 to .84, and were greater for A10 than for MCF measurements (P=.074, .001, and <.001, respectively). CONCLUSIONS "To-be-expected" ROTEM values after CPB are different from the published reference ranges. ROTEM parameters might allow for reliable estimation of fibrinogen level and platelet count without being influenced by hematocrit.
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Affiliation(s)
- Maria S Gauger
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Philip Kaufmann
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Firmin Kamber
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Jonas Quitt
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Denis Berdajs
- Clinic for Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Daniel Bolliger
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Eckhard Mauermann
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
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Vandenheuvel M, VAN Gompel C, Vandewiele K, DE Kesel PM, Wyffels P, DE Somer F, Devreese KM, Wouters PF. Comparison of coagulation monitoring using ROTEM and Sonoclot devices in cardiac surgery. A single-centre prospective observational study. Minerva Anestesiol 2022; 88:680-689. [PMID: 35315620 DOI: 10.23736/s0375-9393.22.16119-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Viscoelastic tests (VETs) are recommended during cardiac surgery to monitor coagulation status and guide transfusion. We compared the results of two VETs, the Sonoclot Analyzer and the ROTEM Sigma. Agreement between viscoelastic tests' subdiagnoses and overall diagnosis severity was assessed. Correlations with conventional coagulation tests (CCT) and the discriminatory potential of numerical VET outputs for transfusion thresholds was determined. METHODS Single-centre, prospective observational study in a tertiary academic centre. In fifty adult patients undergoing elective cardiac surgery, parallel Sonoclot, ROTEM and CCT analysis was performed before heparin, or after protamine or coagulation product administration. All patients completed the study, resulting in 139 data points. RESULTS Agreement on the severity of coagulation disorders was acceptable (83%), but poor (27%) on the differentiation of the underlying causes. Correlations between ROTEM parameters and CCT were good (post-protamine: FIBTEM A5 (r2 = 0.90 vs fibrinogen) and EXTEM-FIBTEM A5 difference (r2 = 0.81 vs platelet count) ). Sonoclot correlated less (Clot Rate (r2 = 0.25 vs fibrinogen) and Platelet Function (r2 = 0.43 vs platelet count)). This was reflected in the discriminatory potential of these parameters as found by linear mixed modelling. We suggest clinically useful grey zones for VET cutoff interpretation. CONCLUSIONS ROTEM and Sonoclot accord well on the detection of severity of coagulation dysfunction, but not on the diagnosis of the underlying cause. ROTEM correlated more closely with CCT then Sonoclot. We propose a testing strategy that could lead to a cost-effective approach to the bleeding cardiac surgery patient.
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Affiliation(s)
| | - Carla VAN Gompel
- Department of Anaesthesia, University Hospital Ghent, Ghent, Belgium
| | | | - Pieter M DE Kesel
- Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium
| | - Piet Wyffels
- Department of Anaesthesia, University Hospital Ghent, Ghent, Belgium
| | - Filip DE Somer
- Department of Perfusion, University Hospital Ghent, Ghent, Belgium
| | - Katrien M Devreese
- Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Patrick F Wouters
- Department of Anaesthesia, University Hospital Ghent, Ghent, Belgium
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Nath S, Pandey C, Kumar S. Clinical application of viscoelastic point-of-care tests of coagulation-shifting paradigms. Ann Card Anaesth 2022; 25:1-10. [PMID: 35075014 PMCID: PMC8865353 DOI: 10.4103/aca.aca_319_20] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Bleeding during cardiac surgery, liver transplant, trauma and post partum hemorrhage are often multifactorial and these factors are dynamic as new factors crop up during the course of management. Conventional tests of coagulation offer information of a part of the coagulation system and also is time consuming. Viscoelastic point of care tests (VE POCTs) like rotational thromboelastometry, thromboelastogram and Sonoclot, are based on analysis of the viscoelastic properties of clotting blood and provide information for the entire coagulation pathway. In this comprehensive review being presented here, we have examined the pros and cons of VE POCTs including clinical, cost and survival benefits. The recommendations of the various guidelines regarding use of VE POCTs in various scenarios have been discussed. The review also tried to offer suggestions as to their optimal role in management of bleeding during cardiac surgeries, extracorporeal membrane oxygenation, left ventricular assist devices, liver transplant and briefly in trauma and postpartum hemorrhage.
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Abstract
Background: Fibrinogen is a substrate for blood clots formation. In cardiac surgery, a number of different mechanisms lead to a decrease in fibrinogen levels and consequent impaired haemostasis. Patients undergoing cardiac surgery are therefore frequently exposed to blood loss and allogeneic blood transfusion, which are risk factors associated with morbidity and mortality. Thus, particular efforts in fibrinogen management should be made to decrease bleeding and the need for blood transfusion. Therefore, fibrinogen remains an active focus of investigations from basic science to clinical practice. This review aims to summarise the latest evidence regarding the role of fibrinogen and current practices in fibrinogen management in adult cardiac surgery. Methods: The PubMed database was systematically searched for literature investigating the role and disorders of fibrinogen in cardiac surgery and diagnostic and therapeutic procedures related to fibrinogen deficiency aimed at reducing blood loss and transfusion requirements. Clinical trials and reviews from the last 10 years were included. Results: In total, 146 articles were analysed. Conclusion: The early diagnosis and treatment of fibrinogen deficiency is crucial in maintaining haemostasis in bleeding patients. Further studies are needed to better understand the association between fibrinogen levels, bleeding, and fibrinogen supplementation and their impacts on patient outcomes in different clinical settings.
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Tantry US, Hartmann J, Neal MD, Schöechl H, Bliden KP, Agarwal S, Mason D, Dias JD, Mahla E, Gurbel PA. The role of viscoelastic testing in assessing peri-interventional platelet function and coagulation. Platelets 2021; 33:520-530. [PMID: 34369848 DOI: 10.1080/09537104.2021.1961709] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We carried out a literature search in MEDLINE (PubMed) and EMBASE literature databases to provide a concise review of the role of viscoelastic testing in assessing peri-interventional platelet function and coagulation. The search identified 130 articles that were relevant for the review, covering the basic science of VHA and VHA in clinical settings including cardiac surgery, cardiology, neurology, trauma, non-cardiac surgery, obstetrics, liver disease, and COVID-19. Evidence from these articles is used to describe the important role of VHAs and platelet function testing in various peri-interventional setups. VHAs can help us to comprehensively assess the contribution of platelets and coagulation dynamics to clotting at the site-of-care much faster than standard laboratory measures. In addition to standard coagulation tests, VHAs are beneficial in reducing allogeneic transfusion requirements and bleeding, in predicting ischemic events, and improving outcomes in several peri-interventional care settings. Further focused studies are needed to confirm their utility in the peri-interventional case.
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Affiliation(s)
- Udaya S Tantry
- Sinai Center for Thrombosis Research and Drug Development, Sinai Hospital of Baltimore, Baltimore, MD, USA
| | - Jan Hartmann
- Medical Affairs and Clinical Development, Haemonetics Corporation, Boston, MA, USA
| | - Matthew D Neal
- Department of General Surgery, The University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Herbert Schöechl
- Department of Anesthesiology and Intensive Care Medicine, AUVA Trauma Centre Salzburg, Academic Teaching Hospital of the Paracelsus Medical University, Salzburg, Austria.,AUVA Trauma Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Kevin P Bliden
- Sinai Center for Thrombosis Research and Drug Development, Sinai Hospital of Baltimore, Baltimore, MD, USA
| | - Seema Agarwal
- Department of Anaesthesia, Manchester University Foundation Trust, Manchester, UK
| | - Dan Mason
- Medical Affairs and Clinical Development, Haemonetics Corporation, Boston, MA, USA
| | - Joao D Dias
- Medical Affairs and Clinical Development, Haemonetics Corporation, Boston, MA, USA
| | - Elisabeth Mahla
- Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, Graz, Austria
| | - Paul A Gurbel
- Sinai Center for Thrombosis Research and Drug Development, Sinai Hospital of Baltimore, Baltimore, MD, USA
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Premkumar M, Mehtani R, Divyaveer S, Kajal K, Kulkarni AV, Ahmed S, Kaur H, Kaur H, Dhiman R, Duseja A, De A. Clinical Validation of Global Coagulation Tests to Guide Blood Component Transfusions in Cirrhosis and ACLF. J Clin Transl Hepatol 2021; 9:210-219. [PMID: 34007803 PMCID: PMC8111111 DOI: 10.14218/jcth.2020.00121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/06/2021] [Accepted: 01/20/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND AND AIMS Patients with cirrhosis and acute-on-chronic liver failure (ACLF) may have bleeding complications and need for invasive procedures. Point-of-care (POC) coagulation tests like thromboelastography (TEG) and Sonoclot may be better for guiding patient management than the standard coagulation tests (SCTs), like prothrombin time, platelet count and international normalized ratio. METHODS We prospectively compared and validated the POC tests and SCTs in 70 persons with ACLF and 72 persons with decompensated cirrhosis who had clinical bleeding and checked for episodes of re-bleeding and transfusion requirements. We assessed pre-procedure requirement of blood components when correction was done based on an SCT or POC strategy. RESULTS Episodes of bleeding were seen in 45% and 28% of ACLF and cirrhosis patient, respectively (p=0.036), with the major site of bleeding being gastrointestinal (31% and 16%, respectively). Platelet counts correlated with TEG-maximum amplitude in cirrhosis (p=0.045) and prothrombin time correlated positively with TEG-reaction (R) time (p=0.032), TEG-Clot kinetics (K) time (p=0.042), Son-activated clotting time (p=0.038) and negatively with clot rate (p=0.043) in ACLF, making these correctable target variables in POC transfusion algorithms. Of 223 procedures, transfusion of fresh frozen plasma and platelet concentrate was reduced by 25% (p=0.035) and 20.8% (p=0.045) by using a POC strategy in 76 patients. Correction of deranged Son-activated clotting time and TEG-reaction time was noted in 68% and 72% after 24 h of fresh frozen plasma transfusion in ACLF and 85% and 80% in cirrhosis, respectively. CONCLUSIONS Our study clinically validates that POC tests can better detect coagulation defects and transfusion thresholds in ACLF and cirrhosis, whereas use of conventional tests appear to be less suitable in patients with clinical bleeding. TRIAL REGISTRATION NCT04332484.
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Affiliation(s)
- Madhumita Premkumar
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- Correspondence to: Madhumita Premkumar, Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, Pin 160012, India. ORCID: https://orcid.org/0000-0003-2961-4148. Tel: +91-172-2754777, E-mail:
| | - Rohit Mehtani
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Smita Divyaveer
- Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kamal Kajal
- Anesthesia, and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anand V. Kulkarni
- Department of Hepatology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Syed Ahmed
- Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Harmanpreet Kaur
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Harpreet Kaur
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Radhakrishna Dhiman
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ajay Duseja
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arka De
- Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Sribnick EA, Wenger N, Nicol K, Tobias JD. Use of viscoelastic monitoring and prothrombin complex concentrate in a paediatric patient with polytrauma and severe traumatic brain injury. BMJ Case Rep 2020; 13:13/12/e236608. [PMID: 33318272 PMCID: PMC7737072 DOI: 10.1136/bcr-2020-236608] [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: 12/15/2022] Open
Abstract
Viscoelastic monitoring (VEM) tools, such as rotational thrombelastometry, have been used extensively to measure coagulopathy in adults but have received less attention in paediatric care. The presented case involves a 5-year-old boy who was brought to the emergency department after a motor vehicle collision with a Glasgow Coma Scale score of 6T and extensive injuries, including a subdural hematoma. VEM was used to monitor the patient's coagulopathy and to inform treatment measures by allowing real-time visualisation of the patient's coagulation status. VEM was additionally used to direct blood product replacement in preparation for neurosurgical intervention, and 4-factor prothrombin complex concentrate (PCC) was used to help reverse the coagulopathy. The patient underwent successful hemicraniectomy after improvement of his coagulopathy. In paediatrics, VEM and PCC are increasingly being used for post-trauma coagulopathy, and this case highlights their potential promise and the need for further research.
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Affiliation(s)
- Eric A Sribnick
- Department of Neurosurgery, Nationwide Children's Hospital, Columbus, Ohio, USA,Deparmtent of Neurosurgery, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Nicole Wenger
- The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Kathleen Nicol
- Deaprtment of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA,Department of Pathology, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Joseph D Tobias
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA,Depatment of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, Ohio, USA
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12
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Quality of Platelets in Stored Whole Blood. Transfus Med Rev 2020; 34:234-241. [PMID: 33051112 DOI: 10.1016/j.tmrv.2020.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 12/29/2022]
Abstract
Transfusion of whole blood rather than blood components is gaining popularity. It is easy to use, with one transfusion product to administer rather than 3, and is held at one storage temperature. It only contains anticoagulant-preservative solution, while components contain various storage solutions, which in theory may induce dilution coagulopathy. In this review, the quality of platelets in stored whole blood is summarized. In cold-stored whole blood, the platelet count declines by 1% to 2% per day. The responsiveness to various agonists declines during the storage time, but this appears to have a limited impact on clotting time or on clot strength as measured with thromboelastography. Animal studies have confirmed that platelets from stored whole blood participate equally well in clot formation. The recovery of platelets in stored whole blood is acceptable during at least 15 days of storage. The survival of platelets after transfusion is only 1 day, but this is likely to be sufficient for the intended patient group requiring massive transfusions, as the platelets are rapidly consumed in the wound area. In addition to the logistic benefits, there are drawbacks, most importantly having a sufficiently large inventory with an acceptable outdating rate, particularly since massive transfusions are rare, while requiring a lot of whole blood. The positive experience of the United States military with whole blood transfusion is often brought forward for introduction in the civilian blood bank, but patients with trauma are only a small fraction of the civilian population requiring massive transfusions. It needs to be determined whether in the resourceful environment of the hospital, these patients benefit from whole blood transfusions. Optimization of whole blood storage, with focus on platelet quality, needs to be performed to allow extension of the storage time beyond 15 days to a point where the number of units in inventory and outdating can be balanced.
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Smith BB, Nuttall GA, Mauermann WJ, Schroeder DR, Scott PD, Smith MM. Coagulation test changes associated with acute normovolemic hemodilution in cardiac surgery. J Card Surg 2020; 35:1043-1050. [DOI: 10.1111/jocs.14532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Bradford B. Smith
- Department of Anesthesiology and Perioperative MedicineMayo Clinic College of Medicine and SciencePhoenix Arizona
| | - Gregory A. Nuttall
- Department of Anesthesiology and Perioperative MedicineMayo Clinic College of Medicine and ScienceRochester Minnesota
| | - William J. Mauermann
- Department of Anesthesiology and Perioperative MedicineMayo Clinic College of Medicine and ScienceRochester Minnesota
| | - Darrell R. Schroeder
- Division of Biomedical Statistics and InformaticsMayo Clinic College of Medicine and ScienceRochester Minnesota
| | - Phillip D. Scott
- Division of Cardiovascular PerfusionMayo Clinic College of Medicine and ScienceRochester Minnesota
| | - Mark M. Smith
- Department of Anesthesiology and Perioperative MedicineMayo Clinic College of Medicine and ScienceRochester Minnesota
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14
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Ranucci M, Di Dedda U, Baryshnikova E. Trials and Tribulations of Viscoelastic-Based Determination of Fibrinogen Concentration. Anesth Analg 2020; 130:644-653. [DOI: 10.1213/ane.0000000000004522] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Leal-Noval SR, Fernández-Pacheco J, Casado-Méndez M, Cancela P, Narros JL, Arellano-Orden V, Dusseck R, Díaz-Martín A, Muñoz-Gómez M. A prospective study on the correlation between thromboelastometry and standard laboratory tests - influence of type of surgery and perioperative sampling times. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 80:179-184. [PMID: 31846350 DOI: 10.1080/00365513.2019.1704051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This prospective study aimed at investigating the influence of surgery type and perioperative sampling times on the correlations between rotational thromboelastometry (ROTEM) parameters and standard laboratory coagulation tests assessing comparable coagulation phases. Patients undergoing glioblastoma multiforme resection (GBR group, n = 60) or laparoscopic colon cancer resection (CCR group, n = 40) were prospectively included. Blood samples for ROTEM and laboratory assessments were consecutively drawn within 24-hours prior to surgery (baseline), and at 2, 24 and 48-hours after surgery. Correlations between perioperative ExTEM clotting-time (CT-exTEM) and prothrombin time (PT), and between FibTEM maximum clot firmness (MCF-fibTEM) with and plasma fibrinogen (pFB) concentration (Clauss method), were evaluated using the Spearman's rho test. The efficiency of recommended cut-offs of CT-exTEM (>75 s) and MCF-fibTEM (<10 mm) for predicting a prolonged PT (>15 s) or a low pFB (<2 g/L), respectively, was assessed using Receiver-Operator Characteristic curves. Correlations between CT-exTEM and PT were weak in GBR (rho = 0.25 [0.12-0.38], p < .01), and very weak in CCR (rho = 0.06 [-0.12-0.27]). Those between MCF-fibTEM and pFB, were strong in both GBR (rho = 0.69 [0.61-0.76], p < .01) and CCR (rho = 0.70 [0.60-0.78], p < .01). These correlations remained largely unchanged over the studied perioperative period in both groups. Recommended CT-exTEM and MCF-fibTEM cut-offs had poor sensitivity for predicting a prolonged PT (17% [8-31]) or a low pFB (46% [32-62]), without group-related differences. Neither the type of surgery nor the perioperative sampling times had a significant influence on the correlations between ROTEM parameters and standard laboratory tests. ClinicalTrials.gov ID: NCT02652897.
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Affiliation(s)
- Santiago R Leal-Noval
- Neuro Critical Care Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - José Fernández-Pacheco
- Pharmacy and Statistics and Design, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - Manuel Casado-Méndez
- Neuro Critical Care Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - Paloma Cancela
- Neurosurgery Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - José L Narros
- Neurosurgery Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - Victoria Arellano-Orden
- Neuro Critical Care Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - Reginald Dusseck
- Neuro Critical Care Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - Ana Díaz-Martín
- Neuro Critical Care Department, University Hospital "Virgen del Rocío" and Institute of Biomedicine "IBIS", Seville, Spain
| | - Manuel Muñoz-Gómez
- Department of Surgical Specialties, Biochemistry and Immunology, School of Medicine, University of Málaga, Málaga, Spain
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16
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Terada R, Ikeda T, Mori Y, Yamazaki S, Kashiwabara K, Yamauchi H, Ono M, Yamada Y, Okazaki H. Comparison of two point of care whole blood coagulation analysis devices and conventional coagulation tests as a predicting tool of perioperative bleeding in adult cardiac surgery-a pilot prospective observational study in Japan. Transfusion 2019; 59:3525-3535. [PMID: 31614002 DOI: 10.1111/trf.15523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 06/10/2019] [Accepted: 08/13/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND It is widely accepted that Point-of Care Test (PoCT) devices are useful in the detection of coagulopathies in situations of massive bleeding such as major cardiac surgery. These devices contribute to the reduction of blood transfusion. However, their implementation remains limited in Japan because of their cost and lack of health insurance support. STUDY DESIGN AND METHODS Conventional coagulation tests and thromboelastography (TEG)/Sonoclot values were measured in 50 consecutive cardiac surgery cases. Clinical background information such as operative procedures was obtained from electronic medical records, and the theoretical perioperative total blood loss was calculated by measuring the hemoglobin content and total red blood cell transfusion volume. The correlation between perioperative total blood loss and the measured laboratory values or clinical parameters was evaluated by a multivariate linear regression analysis. The risk factors of the total amount of platelet transfusion and postoperative drain bleeding volume were similarly evaluated. RESULTS No significant association between the estimated perioperative total blood loss (eTBL) and the laboratory measurements including conventional coagulation tests, TEG and Sonoclot was observed. On the other hand, postoperative drain bleeding volume was significantly associated with postoperative Sonoclot CR (p = 0.039) as well as preoperative use of oral anticoagulants and cell saver treated blood volume. Platelet transfusion amount was significantly associated with post-CBP PF and time to peak value of Sonoclot (p = 0.014 and 0.001, respectively). CONCLUSION Sonoclot measurements may be useful to estimate the risks of postoperative bleeding and platelet transfusion in cardiac surgeries in Japan.
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Affiliation(s)
- Rui Terada
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
| | - Toshiyuki Ikeda
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshiteru Mori
- Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Sho Yamazaki
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
| | - Kosuke Kashiwabara
- Department of Biostatistics Division, Clinical Research Support Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Haruo Yamauchi
- Department of Cardiac Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshitsugu Yamada
- Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Hitoshi Okazaki
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
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17
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Khalaf-Adeli E, Alavi M, Alizadeh-Ghavidel A, Pourfathollah AA. Comparison of standard coagulation testing with thromboelastometry tests in cardiac surgery. J Cardiovasc Thorac Res 2019; 11:300-304. [PMID: 31824611 PMCID: PMC6891038 DOI: 10.15171/jcvtr.2019.48] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 08/26/2019] [Indexed: 01/20/2023] Open
Abstract
Introduction: According to the several evidences, using thromboelastometry as a point of care test can be effective in reduction in blood loss and transfusion requirements in cardiac surgeries. However, there are limited data regarding to the comparison of thromboelastometry and the standard coagulation tests. In this study, we compared thromboelastometry and standard coagulation tests (PT, PTT and fibrinogen level) in patients under combined coronary-valve surgery. Methods: Forty adult patients who were under on-pump combined coronary-valve surgery were included in this study. Thromboelastometry tests Fibtem, Intem, Extem and Heptem), along with standard coagulation tests (PT, PTT and fibrinogen assay) were simultaneously performed in two time points, before and after the pump (pre-CPB and post-CPB, respectively). Results: A total of 80 blood samples were analyzed. There were no significant correlation between PT test and the CT-Extem parameter as well as PTT and CT-Intem parameter either in pre-CPB and post-CPB (P >0.05). On the contrary, fibrinogen level had high correlation with A10-Fibtem and A10-Extem in pre-PCB (P <0.05). 82% of PT and 84% of PTT measurements were outside the reference range, while abnormal CT in Extem and Intem was observed in 17.9%. Conclusion: For management of bleeding, adequate perioperative haemostatic monitoring is indispensable during cardiac surgery. Standard coagulation tests are time consuming and cannot be interchangeably used with thromboelastomety and relying on their results to decide whether blood transfusion is necessary, leads to the inappropriate transfusion.
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Affiliation(s)
- Elham Khalaf-Adeli
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Mostafa Alavi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Alizadeh-Ghavidel
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Akbar Pourfathollah
- Departments of Immunology, Faculty of Medicine, Tarbiat Modares University of Medical Sciences, Tehran, Iran.,Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
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18
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Peng HT, Nascimento B, Tien H, Callum J, Rizoli S, Rhind SG, Beckett A. A comparative study of viscoelastic hemostatic assays and conventional coagulation tests in trauma patients receiving fibrinogen concentrate. Clin Chim Acta 2019; 495:253-262. [DOI: 10.1016/j.cca.2019.04.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 03/27/2019] [Accepted: 04/15/2019] [Indexed: 12/13/2022]
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19
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Wang S, Zhao G, Li N, Hou T, Shao X, Tang W, Wang F, Luan J, Zhu P. An
in vitro
study of coagulation properties in refrigerated whole blood and reconstituted whole blood. Vox Sang 2019; 114:694-700. [PMID: 31286533 DOI: 10.1111/vox.12825] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/09/2019] [Accepted: 06/10/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Shujun Wang
- Department of Blood Transfusion Jinling Hospital Nanjing University School of Medicine Nanjing China
- Department of Hematology Zhongda Hospital Southeast University School of Medicine Nanjing China
| | - Guangchao Zhao
- Department of Blood Transfusion Jinling Hospital Nanjing University School of Medicine Nanjing China
| | - Na Li
- Department of Blood Transfusion Jinling Hospital Nanjing University School of Medicine Nanjing China
| | - Tao Hou
- TaiKang Xian Lin Drum Tower Hospital Nanjing China
| | - Xiaobao Shao
- Department of Transfusion Medicine Third Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
| | - Wen Tang
- Department of Blood Transfusion Jinling Hospital Nanjing University School of Medicine Nanjing China
| | - Fei Wang
- Department of Hematology Zhongda Hospital Southeast University School of Medicine Nanjing China
| | - Jianfeng Luan
- Department of Blood Transfusion Jinling Hospital Nanjing University School of Medicine Nanjing China
| | - Peiyuan Zhu
- Department of Transfusion Medicine Third Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China
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20
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Topf HG, Strasser ER, Breuer G, Rascher W, Rauh M, Fahlbusch FB. Closing the gap - detection of clinically relevant von Willebrand disease in emergency settings through an improved algorithm based on rotational Thromboelastometry. BMC Anesthesiol 2019; 19:10. [PMID: 30630422 PMCID: PMC6329185 DOI: 10.1186/s12871-018-0672-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 12/26/2018] [Indexed: 01/25/2023] Open
Abstract
Background Hemorrhage and blood loss are still among the main causes of preventable death. Global hemostatic assays are useful point-of-care test (POCT) devices to rapidly detect cumulative effects of plasma factors and platelets on coagulation. Thromboelastography (TEG) and Thromboelastometry (ROTEM) are established methods in many anesthesiological departments for guided hemostatic treatment. However, von Willebrand disease remains undetected by standard ROTEM, especially during emergency care, despite being the most prevalent congenital hemostatic disorder. Methods In our monocentric cohort pilot study we focused on hemostatic challenges associated with von Willebrand disease. Twenty-seven patients with suspected von Willebrand disease were included. We modified the routine ROTEM assay by adding a preincubation with ristocetin and commercially available plasma-derived von Willebrand factor to identify clinically relevant von Willebrand disease (VWD). Results Addition of von Willebrand factor to the ristocetin assay of a VWD type 3 patient restored the reaction of the whole blood probe to match the response of a healthy person. Our modified ROTEM assay with ristocetin (Ricotem) showed that all high responders (n = 7) had VWD. In the low responder group (n = 16) – 10 of 16 had VWD and in the normal responder group (n = 5), 2 of 5 had mild type 1 VWD. Conclusions This new modification of the standard ROTEM assay enables the detection of otherwise unnoticed critical von Willebrand disease based on alterations in clot formation and might serve as a novel approach to reliably assess severe VWD patients by platelet-mediated blood clotting in an emergency setting. We recommend incorporating this new VWD-focused screening tool into the current ROTEM-based management algorithm of acute microvascular bleeding. Electronic supplementary material The online version of this article (10.1186/s12871-018-0672-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- H-G Topf
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany.
| | - E R Strasser
- Department of Transfusion Medicine and Hemostasis, University of Erlangen-Nurnberg, Erlangen, Germany
| | - G Breuer
- Department of Anesthesiology, University of Erlangen-Nurnberg, Erlangen, Germany
| | - W Rascher
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany
| | - M Rauh
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany
| | - F B Fahlbusch
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany
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21
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Thromboelastography and Thromboelastometry in Assessment of Fibrinogen Deficiency and Prediction for Transfusion Requirement: A Descriptive Review. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7020539. [PMID: 30596098 PMCID: PMC6286766 DOI: 10.1155/2018/7020539] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/28/2018] [Accepted: 11/06/2018] [Indexed: 12/22/2022]
Abstract
Fibrinogen is crucial for the formation of blood clot and clinical outcomes in major bleeding. Both Thromboelastography (TEG) and Rotational Thromboelastometry (ROTEM) have been increasingly used to diagnose fibrinogen deficiency and guide fibrinogen transfusion in trauma and surgical bleeding patients. We conducted a comprehensive and comparative review on the technologies and clinical applications of two typical functional fibrinogen assays using TEG (FF TEG) and ROTEM (FIBTEM) for assessment of fibrinogen level and deficiency, and prediction of transfusion requirement. Clot strength and firmness of FF TEG and ROTEM FIBTEM were the most used parameters, and their associations with fibrinogen levels as measured by Clauss method ranged from 0 to 0.9 for FF TEG and 0.27 to 0.94 for FIBTEM. A comparison of the interchangeability and clinical performance of the functional fibrinogen assays using the two systems showed that the results were correlated, but are not interchangeable between the two systems. It appears that ROTEM FIBTEM showed better associations with the Clauss method and more clinical use for monitoring fibrinogen deficiency and predicting transfusion requirements including fibrinogen replacement than FF TEG. TEG and ROTEM functional fibrinogen tests play important roles in the diagnosis of fibrinogen-related coagulopathy and guidance of transfusion requirements. Despite the fact that high-quality evidence is still needed, the two systems are likely to remain popular for the hemostatic management of bleeding patients.
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22
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Sharma S, Kumar S, Tewari P, Pande S, Murari M. Utility of thromboelastography versus routine coagulation tests for assessment of hypocoagulable state in patients undergoing cardiac bypass surgery. Ann Card Anaesth 2018; 21:151-157. [PMID: 29652276 PMCID: PMC5914215 DOI: 10.4103/aca.aca_174_17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Introduction: Peri-operative monitoring of coagulation is important to diagnose potential cause of hemorrhage, to manage coagulopathy and guide treatment with blood products in patients undergoing cardiac surgery with cardiopulmonary bypass. This study was done to evaluate usefulness of Thromboelastography (TEG) and routine coagulation tests (RCT) in assessing hemostatic changes and predicting postoperative bleeding in patients undergoing cardiac surgery with cardiopulmonary bypass. Methods: Fifty adult patients undergoing cardiac surgery with cardiopulmonary bypass were enrolled in this prospective study. Preoperative and post-operative samples were collected for routine coagulation tests and TEG. Regression analysis and test of significance using Pearson's correlation coefficient was performed to assess correlation between routine coagulation tests and corresponding TEG parameters. Regression analysis was done to study relation between blood loss at 24 hours and various coagulation parameters. Results: The Routine coagulation test i.e. PT, INR, APTT showed no significant correlation with corresponding TEG parameters in pre-operative samples. However platelet count significantly correlated (p = 0.004) with MA values in postoperative samples. A significant correlation (p = 0.001) was seen between fibrinogen levels and alpha angles as well as with MA in both baseline preoperative and postoperative samples. TEG parameters R time and MA in postoperative samples were the only parameters that predicted bleeders with fair accuracy. Conclusion: Though the techniques of RCT and TEG are different, a few RCT e.g. platelet count and fibrinogen correlated with corresponding TEG parameters i.e. MA and Alpha angle. TEG parameters (R time and MA in postoperative samples) were able to predict blood loss better than RCT.
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Affiliation(s)
- Seema Sharma
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Sujeet Kumar
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Prabhat Tewari
- Department of Anesthesia, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Shantanu Pande
- Department of Cardiovascular and Thoracic Surgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Manjula Murari
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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23
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Matzelle SA, Weightman WM, Gibbs NM. An Audit of the Diagnostic Accuracy of Rotational Thromboelastometry for the Identification of Hypofibrinogenaemia and Thrombocytopenia during Cardiopulmonary Bypass. Anaesth Intensive Care 2018; 46:620-626. [DOI: 10.1177/0310057x1804600614] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We audited the diagnostic accuracy of ROTEM® (TEM Innovations, GmbH, Munich, Germany) measurements of hypofibrinogenaemia (fibrinogen <1.5 g/l) and thrombocytopenia (platelet count <100 × 109/l) in 200 adult non-transplant patients during cardiopulmonary bypass (CPB). Blood samples were obtained for FIBTEM (assay for the fibrin part of the clot), PLTEM (calculated platelet-specific component), and laboratory measurements simultaneously. Our thresholds for FIBTEM and PLTEM were A10 (clot firmness 10 minutes after clotting time) ≤8 mm, and <35 mm respectively. We also calculated the accuracy of smaller thresholds and earlier indices. We found that FIBTEM A10 ≤8 mm had low sensitivity (0.62) for hypofibrinogenaemia. With the 13% hypofibrinogenaemia prevalence in our sample, the positive predictive value (PPV) was 0.47. In contrast, FIBTEM A10 ≤8 mm had higher specificity (0.90) (negative predictive value [NPV] 0.94). Of the other FIBTEM values analysed, only A5 ≤6 mm had similar or superior accuracy. The PLTEM results were less encouraging (sensitivity 0.81, specificity 0.62). With our prevalence of thrombocytopenia (also 13%), the PPV was only 0.24. However, the NPV was high (0.96). Of the other PLTEM values analysed, only A5 <25 mm had similar or superior accuracy. These findings indicate that during CPB FIBTEM A10 ≤8 mm and PLTEM A10 <35 mm have greater accuracy in identifying the absence of hypofibrinogenaemia and thrombocytopenia respectively than their presence. On the basis of these results we would be reassured by FIBTEM A10 values >8 mm and PLTEM A10 values ≥35 mm, but would continue to use laboratory measurements for confirmation. We would not use FIBTEM A10 ≤8 mm or PLTEM A10 <35 mm values alone to guide replacement therapy unless clinical conditions warranted an immediate decision before laboratory measurements were available.
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Affiliation(s)
- S. A. Matzelle
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Perth, Western Australia
| | - W. M. Weightman
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Perth, Western Australia
| | - N. M. Gibbs
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Perth, Western Australia
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24
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Curry NS, Davenport R, Pavord S, Mallett SV, Kitchen D, Klein AA, Maybury H, Collins PW, Laffan M. The use of viscoelastic haemostatic assays in the management of major bleeding: A British Society for Haematology Guideline. Br J Haematol 2018; 182:789-806. [PMID: 30073664 DOI: 10.1111/bjh.15524] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nicola S Curry
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,NIHR BRC, Blood Theme, Oxford University, Oxford, UK
| | - Ross Davenport
- Centre for Trauma Sciences, Blizard Institute, Queen Mary University of London, London, UK
| | - Sue Pavord
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,NIHR BRC, Blood Theme, Oxford University, Oxford, UK
| | - Susan V Mallett
- Department of Anaesthesia, Royal Free London NHS Foundation Trust, London, UK
| | | | - Andrew A Klein
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital, Cambridge, UK
| | - Helena Maybury
- Department of Obstetrics, Leicester Royal Infirmary, Leicester, UK
| | - Peter W Collins
- Department of Haematology, School of Medicine, Cardiff University, Cardiff, UK
| | - Mike Laffan
- Department of Haematology, Imperial College and Hammersmith Hospital, London, UK
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25
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Sarrais Polo C, Alonso Morenza A, Rey Picazo J, Álvarez Mercadal L, Beltrao Sial R, Aguilar Lloret C. Thromboelastometry as guidance for blood management in patients undergoing cardiac surgery. ACTA ACUST UNITED AC 2017; 65:129-134. [PMID: 29223684 DOI: 10.1016/j.redar.2017.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/10/2017] [Accepted: 10/15/2017] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Thromboelastometry is a viscoelastometric method for haemostasis testing in a whole blood sample. The aim of this study was to assess the results of using thromboelastometry as guidance for blood management in cardiac surgery, postoperative adverse events and ICU stay. MATERIAL AND METHOD Analytical and comparative non-randomised quasi-experimental prospective study with a retrospective control group. The inclusion criteria for the 80 patients were: patients undergoing cardiac surgery who had had prior cardiac surgery, endocarditis surgery or aortic arch surgery. Thirty-one patients were treated following routine transfusion practice during surgery (group A). The other 49 patients were treated with thromboelastometrically guided transfusion algorithms (group B). The main objective was blood products transfused, and postoperative adverse events and ICU stay were the secondary objectives. RESULTS Statistical analysis showed lower transfusion rates of fresh-frozen plasma in group B compared to group A (P<.001), as well as red blood cell transfusion during surgery with an average transfusion rate of 3.9 units in group A in comparison to 2.67 units in group B (P=.125). Moreover, fibrinogen infusion was increased in group B compared to group A (P=.019). In addition, a lower rate of respiratory adverse events was found in group B (P=.019). There was a significant decrease in ICU stays over 7 days in group B compared to group A (P=.031). CONCLUSIONS Using thromboelastometry guidance for blood management led to a meaningful reduction of fresh frozen plasma transfusion during surgery. This probably resulted in a reduction in respiratory adverse events after surgery and length of ICU stay in our patients.
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Affiliation(s)
- C Sarrais Polo
- Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Doce de Octubre, Madrid, España.
| | - A Alonso Morenza
- Servicio de Anestesiología Reanimación y Terapéutica del Dolor, Hospital Clínico San Carlos, Madrid, España
| | - J Rey Picazo
- Servicio de Anestesiología Reanimación y Terapéutica del Dolor, Hospital Clínico San Carlos, Madrid, España
| | - L Álvarez Mercadal
- Servicio de Anestesiología Reanimación y Terapéutica del Dolor, Hospital Clínico San Carlos, Madrid, España
| | - R Beltrao Sial
- Servicio de Anestesiología Reanimación y Terapéutica del Dolor, Hospital Clínico San Carlos, Madrid, España
| | - C Aguilar Lloret
- Servicio de Anestesiología Reanimación y Terapéutica del Dolor, Hospital Clínico San Carlos, Madrid, España
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26
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Blaudszun G, Butchart A, Klein AA. Blood conservation in cardiac surgery. Transfus Med 2017; 28:168-180. [DOI: 10.1111/tme.12475] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/27/2017] [Accepted: 08/28/2017] [Indexed: 12/30/2022]
Affiliation(s)
- G. Blaudszun
- Department of Anaesthesia and Intensive Care; Papworth Hospital NHS Foundation Trust; Cambridge UK
| | - A. Butchart
- Department of Anaesthesia and Intensive Care; Papworth Hospital NHS Foundation Trust; Cambridge UK
| | - A. A. Klein
- Department of Anaesthesia and Intensive Care; Papworth Hospital NHS Foundation Trust; Cambridge UK
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27
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Eaton MP. Prediction, Guidance, and the Utility of Information. J Cardiothorac Vasc Anesth 2017; 31:909-911. [PMID: 28689819 DOI: 10.1053/j.jvca.2017.03.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Michael P Eaton
- Department of Anesthesiology University of Rochester School of Medicine and Dentistry, Rochester, NY
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28
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Rajkumar V, Kumar B, Dutta V, Mishra AK, Puri GD. Utility of Sonoclot in Prediction of Postoperative Bleeding in Pediatric Patients Undergoing Cardiac Surgery for Congenital Cyanotic Heart Disease: A Prospective Observational Study. J Cardiothorac Vasc Anesth 2017; 31:901-908. [DOI: 10.1053/j.jvca.2017.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Indexed: 11/11/2022]
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Gorlinger K, Bhardwaj V, Kapoor PM. Simulation in coagulation testing using rotational thromboelastometry: A fast emerging, reliable point of care technique. Ann Card Anaesth 2017; 19:516-20. [PMID: 27397458 PMCID: PMC4971982 DOI: 10.4103/0971-9784.185546] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Computer simulations can come in handy to train medical personnel with necessary skills to face the clinical scenarios involving various coagulopathies. Now a days, point of care (POC) devices such as thromboelastography, Sonoclot analyzer and newly approved rotational thromboelastometry (ROTEM) with faster results to assess coagulopathies are available on bedside of patients. ROTEM is emerging as a quick, portable, and well-validated device to evaluate coagulopathy in critical care and perioperative setup. A novel platelet-aggregometry integrated module enables simultaneous analysis of platelets as well as coagulation tests on the same screen. The entire gamut of POC signature curves obtained with different coagulation defects can be learned with graphical simulations. These simulations can be a valuable strategy to elucidate latent conditions, for which simulation interventions can then be designed to mimic different clinical scenarios.
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Affiliation(s)
- Klaus Gorlinger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, Essen, Germany
| | - Vandana Bhardwaj
- Department of Cardiac Anaesthesiology, Cardio Thoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Poonam Malhotra Kapoor
- Department of Cardiac Anaesthesiology, Cardio Thoracic Centre, All India Institute of Medical Sciences, New Delhi, India
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Sun JB, Bian MH, Zhong T, Lu YY, Zhu BQ, Wen HQ, Hu HL. Reference values for kaolin-activated thromboelastography in volunteers of Anhui Province in China. J Clin Lab Anal 2017; 31. [PMID: 28133787 DOI: 10.1002/jcla.22128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 12/12/2016] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The assessment of the coagulation status using thromboelastography (TEG) in Chinese population has less been reported. This study aimed to establish reliable reference values for kaolin-activated TEG in Chinese volunteers. METHODS A total of 1681 Chinese adult individuals were recruited for this study. The reference individuals were stratified by gender and age, and the TEG values were measured on the basis of strict quality control. The 95% reference values were determined using nonparametric statistical methods. RESULTS The sex-related 95% reference values were reaction time (R):4.2-8.7 minutes; clotting time (K): 1.2-3.2 minutes; alpha angle (α): 47.0-72.3 degree; maximum amplitude (MA): 49.1-70.5 mm for males, and R: 3.7-9.0 minutes; K: 1.0-3.2 minutes; α: 48.4-74.4 degree; MA: 46.8-72.4 mm for females. Also, the TEG parameters indicated a relatively more hypercoagulable profile in both female and elder groups. CONCLUSIONS This study established the reference values for kaolin-activated TEG in the target Chinese population, which might provide a reference for both clinical and laboratory studies.
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Affiliation(s)
- Jun-Bo Sun
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.,Department of Blood Transfusion, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Mao-Hong Bian
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Tao Zhong
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ying-Yu Lu
- Department of Blood Transfusion, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Bang-Qiang Zhu
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Hui-Qin Wen
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Hai-Liang Hu
- Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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Edanaga M, Hoshi T, Azumaguchi R, Yamakage M. A case of hemothorax due to traumatic bleeding managed effectively by Sonoclot®-guided blood transfusion. JA Clin Rep 2016; 2:16. [PMID: 29497671 PMCID: PMC5818838 DOI: 10.1186/s40981-016-0042-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 07/29/2016] [Indexed: 11/25/2022] Open
Abstract
A 71-year-old woman was transported to our hospital due to traumatic bleeding, and an operation was immediately performed for achieving hemostasis. We decided to perform Sonoclot®-guided blood transfusion. When Sonoclot signatures had returned normal values, further bleeding did not occur. We experienced the first case of traumatic bleeding managed effectively by using Sonoclot. We suggest that a Sonoclot analyzer may be useful for the management of severe coagulopathy due to traumatic bleeding like ROTEM and TEG.
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Shah AA, Rehman A, Shah SJ, Haider AH, Zogg CK, Zafar SN, Hadi YB, Zia-ur-Rehman, Zafar H. Abdominal gunshot wounds—a comparative assessment of severity measures. J Surg Res 2015; 198:334-9. [DOI: 10.1016/j.jss.2015.03.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/10/2015] [Accepted: 03/19/2015] [Indexed: 12/01/2022]
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Bose E, Hravnak M. Thromboelastography: A Practice Summary for Nurse Practitioners Treating Hemorrhage. J Nurse Pract 2015; 11:702-709. [PMID: 26273234 DOI: 10.1016/j.nurpra.2015.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nurse practitioners may manage patients with coagulopathic bleeding which can lead to life-threatening hemorrhage. Routine plasma-based tests such as prothrombin time and activated partial thromboplastin time are inadequate in diagnosing hemorrhagic coagulopathy. Indiscriminate administration of fresh frozen plasma, platelets or cryoprecipitate for coagulopathic states can be extremely dangerous. The qualitative analysis that thromboelastography provides can facilitate the administration of the right blood product, at the right time, thereby permitting the application of goal-directed therapy for coagulopathic intervention application and patient survival.
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Affiliation(s)
- Eliezer Bose
- School of Nursing, University of Pittsburgh, 3500 Victoria St., 336 Victoria Building, Pittsburgh, PA 15261, USA
| | - Marilyn Hravnak
- School of Nursing, University of Pittsburgh, 3500 Victoria St., 336 Victoria Building, Pittsburgh, PA 15261, USA
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Ortmann E, Rubino A, Altemimi B, Collier T, Besser MW, Klein AA. Validation of viscoelastic coagulation tests during cardiopulmonary bypass. J Thromb Haemost 2015; 13:1207-16. [PMID: 25903995 DOI: 10.1111/jth.12988] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 04/13/2015] [Indexed: 08/31/2023]
Abstract
BACKGROUND Viscoelastic point-of-care tests such as thromboelastography (TEG) and rotational thromboelastometry (ROTEM) are increasingly used to guide hemostatic therapy after cardiac surgery. The aim of this study was to assess their clinical utility during cardiopulmonary bypass to predict postbypass coagulation status and to guide therapy. METHODS In this prospective study, TEG and ROTEM tests were performed in 52 adult patients undergoing elective cardiac surgery at two time points: near the end of cardiopulmonary bypass and after heparin reversal with protamine. The 95% confidence intervals of the mean difference were compared with a prespecified clinically relevant limit of ± 20% of the value after protamine. RESULTS Both viscoelastic fibrinogen assays were well within the prespecified clinically relevant limit (≥ 79% of patients). The laboratory Clauss fibrinogen was much lower during cardiopulmonary bypass than after protamine (mean difference 1.2 g L(-1) , 95% CI 1.03-1.4, which was outside a clinically acceptable difference. For intrinsically activated tests, clotting times (CT) were different and outside the prespecified limit on TEG (mean difference -1.2 min, 95% CI -1.8 to -0.6) but not on ROTEM (mean difference 2.3 sec, 95% CI -8.6 to 13.2), while clot strength was well within the clinical limit on both devices (≥ 94% of patients). For extrinsically activated tests, clot strength on both TEG and ROTEM was within the pre-specified limit in 98% of patients. CONCLUSIONS Results from TEG and ROTEM tests performed toward the end of cardiopulmonary bypass are similar to results after reversal of heparin. Amplitudes indicating clot strength were the most stable parameters across all tests, whereas CT showed more variability. In contrast, laboratory testing of fibrinogen using the Clauss assay was essentially invalid during cardiopulmonary bypass.
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Affiliation(s)
- E Ortmann
- Department of Anaesthesia and Intensive Care, Papworth Hospital, Cambridge, UK
| | - A Rubino
- Department of Anaesthesia and Intensive Care, Papworth Hospital, Cambridge, UK
| | - B Altemimi
- Department of Anaesthesia and Intensive Care, Papworth Hospital, Cambridge, UK
| | - T Collier
- London School of Hygiene and Tropical Medicine, London, UK
| | - M W Besser
- Department of Haematology, Addenbrooke's Hospital, Cambridge University Hospitals Foundation Trust, Cambridge, UK
| | - A A Klein
- Department of Anaesthesia and Intensive Care, Papworth Hospital, Cambridge, UK
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Espinosa A, Seghatchian J. What is happening? The evolving role of the blood bank in the management of the bleeding patient: The impact of TEG as an early diagnostic predictor for bleeding. Transfus Apher Sci 2014; 51:105-10. [DOI: 10.1016/j.transci.2014.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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