1
|
Chen KM, Yang E. Severe heparin resistance during repeat aortic valve repair unresponsive to plasma and antithrombin III. J Cardiothorac Vasc Anesth 2024:S1053-0770(24)00450-6. [PMID: 39089941 DOI: 10.1053/j.jvca.2024.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/29/2024] [Accepted: 07/05/2024] [Indexed: 08/04/2024]
Affiliation(s)
- Kevin M Chen
- Department of Anesthesiology, Baylor College of Medicine, Houston, TX.
| | - Edward Yang
- Department of Anesthesiology, Baylor College of Medicine, Houston, TX
| |
Collapse
|
2
|
Reardon B, Pasalic L, Favaloro EJ. The Role of Viscoelastic Testing in Assessing Hemostasis: A Challenge to Standard Laboratory Assays? J Clin Med 2024; 13:3612. [PMID: 38930139 PMCID: PMC11205135 DOI: 10.3390/jcm13123612] [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: 05/01/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Viscoelastic testing is increasingly being used in clinical and research settings to assess hemostasis. Indeed, there are potential situations in which viscoelastic testing is reportedly superior to standard routine laboratory testing for hemostasis. We report the current testing platforms and terminology, as well as providing a concise narrative review of the published evidence to guide its use in various clinical settings. Notably, there is increasing evidence of the potential utility of viscoelastic testing for assessment of direct oral anticoagulants, and bleeding associated with chronic liver disease, orthotopic liver transplantation, cardiac surgery, trauma, obstetrics and pediatrics.
Collapse
Affiliation(s)
- Benjamin Reardon
- School of Medicine and Public Health, Joint Medical Program, University of Newcastle, Callaghan, NSW 2145, Australia;
- Haematology Department, Calvary Mater Hospital Newcastle, Waratah, NSW 2298, Australia
| | - Leonardo Pasalic
- Haematology Department, Institute of Clinical Pathology and Medical Research (ICPMR), NSW Health Pathology, Westmead Hospital, Westmead, NSW 2145, Australia;
- Westmead Clinical School, University of Sydney, Westmead, NSW 2145, Australia
- Sydney Centres for Thrombosis and Haemostasis, Westmead Hospital, Westmead, NSW 2145, Australia
| | - Emmanuel J. Favaloro
- Haematology Department, Institute of Clinical Pathology and Medical Research (ICPMR), NSW Health Pathology, Westmead Hospital, Westmead, NSW 2145, Australia;
- Sydney Centres for Thrombosis and Haemostasis, Westmead Hospital, Westmead, NSW 2145, Australia
- School of Dentistry and Medical Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW 2650, Australia
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead Hospital, Westmead, NSW 2145, Australia
| |
Collapse
|
3
|
Erdoes G, Ahmed A, Kurz SD, Gerber D, Bolliger D. Perioperative hemostatic management of patients with type A aortic dissection. Front Cardiovasc Med 2023; 10:1294505. [PMID: 38054097 PMCID: PMC10694357 DOI: 10.3389/fcvm.2023.1294505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/06/2023] [Indexed: 12/07/2023] Open
Abstract
Coagulopathy is common in patients undergoing thoracic aortic repair for Stanford type A aortic dissection. Non-critical administration of blood products may adversely affect the outcome. It is therefore important to be familiar with the pathologic conditions that lead to coagulopathy in complex cardiac surgery. Adequate care of these patients includes the collection of the medical history regarding the use of antithrombotic and anticoagulant drugs, and a sophisticated diagnosis of the coagulopathy with viscoelastic testing and subsequently adapted coagulation therapy with labile and stable blood products. In addition to the above-mentioned measures, intraoperative blood conservation measures as well as good interdisciplinary coordination and communication contribute to a successful hemostatic management strategy.
Collapse
Affiliation(s)
- Gabor Erdoes
- Department of Anesthesiology and Pain Medicine, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Aamer Ahmed
- Consultant Cardiothoracic Anaesthesiologist, Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
| | - Stephan D. Kurz
- Department of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
| | - Daniel Gerber
- Department of Anesthesiology and Pain Medicine, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Daniel Bolliger
- Clinic for Anaesthesia, Intermediate Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, University of Basel, Basel, Switzerland
| |
Collapse
|
4
|
Ramanujam V, DiMaria S, Varma V. Thromboelastography in the Perioperative Period: A Literature Review. Cureus 2023; 15:e39407. [PMID: 37362492 PMCID: PMC10287184 DOI: 10.7759/cureus.39407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2023] [Indexed: 06/28/2023] Open
Abstract
Assessing coagulation status is essential for prompt intervention to reduce morbidity and mortality related to bleeding and thrombotic complications during the perioperative period. Traditional coagulation tests such as platelet count, activated partial thromboplastin time (aPTT), prothrombin time (PT), international normalized ratio (INR), and activated clotting time (ACT) provide only static evaluation. These tests are not designed for assessment of dynamically changing coagulation conditions during the perioperative time. However, viscoelastic coagulation testing such as thromboelastography (TEG) produces a rapid numerical and graphical representation that helps to detect and direct targeted hemostatic therapy. Searching the literature through PubMed, Medline, Ovid, CINAHL, and ClinicalTrials.gov we retrieved 210 studies, which represent the use of TEG in the perioperative period. The included studies were categorized under various settings such as trauma, obstetrics, orthopedics, intensive care unit (ICU), cardiovascular, transplant, and miscellaneous scenarios. TEG showed promising results in trauma surgeries in predicting mortality, hypercoagulability, and bleeding even when it was compared to conventional methods. TEG was also useful in monitoring anticoagulant therapy in orthopedic and obstetric surgeries; however, its role in predicting thrombotic events, hypercoagulability, or complications was questionable. In ICU patients, it showed promising results, especially in the prediction or improvement of sepsis, coagulopathy, thrombotic events, ICU duration, hospital stay, and ventilator duration. TEG parameters effectively predicted hypercoagulation in transplant surgeries. Regarding cardiovascular surgeries, they were effective in the prediction of the need for blood products, coagulopathy, thrombotic events, and monitoring anticoagulation therapy. More randomized clinical trials comparing TEG parameters with standardized tools are needed to produce robust results to standardize its use in different perioperative settings.
Collapse
Affiliation(s)
- Vendhan Ramanujam
- Department of Anesthesiology, Rhode Island Hospital/The Warren Alpert Medical School of Brown University, Providence, USA
| | - Stephen DiMaria
- Department of Anesthesiology, Rhode Island Hospital/The Warren Alpert Medical School of Brown University, Providence, USA
| | - Vivek Varma
- Department of Anesthesiology, Rhode Island Hospital/The Warren Alpert Medical School of Brown University, Providence, USA
| |
Collapse
|
5
|
Zeng Y, Yamamoto Y, Hayashi Y, Uchida T. Evaluation of fibrinogen concentration by clot firmness using a dielectric blood coagulation test system. J Anesth 2023; 37:56-63. [PMID: 36316533 DOI: 10.1007/s00540-022-03131-x] [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: 05/19/2022] [Accepted: 10/20/2022] [Indexed: 11/05/2022]
Abstract
PURPOSE To determine if fibrinogen concentration can be evaluated by dielectric permittivity changes in dielectric blood coagulation testing (DBCM) during cardiovascular surgery with cardiopulmonary bypass (CPB). METHODS We performed a single-center prospective observational study at a university hospital. One hundred patients undergoing cardiovascular surgery with CPB were enrolled. Whole-blood samples were obtained after weaning from CPB, and dielectric clot strength (DCS) was measured by intrinsic pathway testing with or without heparinase in DBCM. The FIBTEM test was performed during rotational thromboelastometry using the same samples, and maximum clot firmness (MCF) was evaluated. Spearman's correlation analysis was performed, and receiver operating characteristics (ROC) curve analyses were used to evaluate the performance of hypofibrinogenemia detection. RESULTS DCS showed a strong positive correlation with plasma fibrinogen concentration (Rs = 0.76, P < 0.0001). The area under the ROC curve for evaluating plasma fibrinogen concentration < 200 mg/dL was 0.91 (95% confidence interval (CI) 0.85-0.97) for DCS, compared with 0.88 (95% CI 0.81-0.94) for FIBTEM MCF. The optimal cutoff value of DCS was 17.0 (sensitivity 94%, specificity 80%). CONCLUSIONS DCS variables showed a significantly strong correlation with plasma fibrinogen concentration, and the diagnostic performance for hypofibrinogenemia was comparable to that for FIBTEM MCF. This novel methodology has the potential to provide a point-of-care test with sufficient accuracy for the detection of perioperative hypofibrinogenemia during cardiovascular surgery with CPB.
Collapse
Affiliation(s)
- Yulin Zeng
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Yudai Yamamoto
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Yoshihito Hayashi
- Biomedical R&D Department, R&D Division, Medical Business Group, Sony Imaging Products & Solutions Inc., Bunkyo-Ku, Tokyo, 113-8519, Japan
- Tokyo Laboratory 11, R&D Center, Sony Group Corporation, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Tokujiro Uchida
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan.
| |
Collapse
|
6
|
Nakamura E, Matsunaga S, Kikuchi A, Takai Y. Comparative retrospective study on the validity of point-of-care testing device for massive obstetrical hemorrhage: dry hematology vs thromboelastography. Am J Obstet Gynecol MFM 2023; 5:100778. [PMID: 36273811 DOI: 10.1016/j.ajogmf.2022.100778] [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: 08/20/2022] [Revised: 10/08/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Early recognition of hypofibrinogenemia and prompt initiation of transfusion therapy in patients with massive obstetrical hemorrhage can improve prognosis. There are reports on the usefulness of point-of-care testing, which provides quicker test results compared with fibrinogen measurements using the conventional Clauss method. OBJECTIVE This study aimed to compare and investigate the diagnostic accuracy of dry hematology and thromboelastography in point-of-care testing for the diagnosis of hypofibrinogenemia. STUDY DESIGN A single-center, retrospective study of 126 massive obstetrical hemorrhage cases with point-of-care testing before treatment was initiated. The correlation of fibrinogen values with the Clauss method and the diagnostic accuracy for hypofibrinogenemia were compared between dry hematology and thromboelastography. RESULTS Fibrinogen value in dry hematology showed a strong positive correlation with values measured by the Clauss method, and the diagnostic accuracy for hypofibrinogenemia was high, but there were many residuals above 100 mg/dL, and the distribution of these residuals was not uniform. Although thromboelastography cannot be used to directly measure fibrinogen values, maximum amplitude citrated functional fibrinogen, amplitude-10 citrated rapid thromboelastography, and amplitude-10 citrated functional fibrinogen showed a strong positive correlation with fibrinogen values using the Clauss method, and no significant difference in correlation or diagnostic accuracy was observed relative to dry hematology. CONCLUSION Dry hematology and thromboelastography were equally accurate in diagnosing hypofibrinogenemia, with results correlating well with fibrinogen values measured by the Clauss method.
Collapse
Affiliation(s)
- Eishin Nakamura
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, Saitama, Japan (Dr Nakamura and Dr Kikuchi).
| | - Shigetaka Matsunaga
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, Saitama, Japan (Dr Matsunaga and Dr Takai)
| | - Akihiko Kikuchi
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, Saitama, Japan (Dr Nakamura and Dr Kikuchi)
| | - Yasushi Takai
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, Saitama, Japan (Dr Matsunaga and Dr Takai)
| |
Collapse
|
7
|
Donkin R, Fung YL, Singh I. Fibrinogen, Coagulation, and Ageing. Subcell Biochem 2023; 102:313-342. [PMID: 36600138 DOI: 10.1007/978-3-031-21410-3_12] [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: 01/06/2023]
Abstract
The World Health Organization estimates that the world's population over 60 years of age will nearly double in the next 30 years. This change imposes increasing demands on health and social services with increased disease burden in older people, hereafter defined as people aged 60 years or more. An older population will have a greater incidence of cardiovascular disease partly due to higher levels of blood fibrinogen, increased levels of some coagulation factors, and increased platelet activity. These factors lead to a hypercoagulable state which can alter haemostasis, causing an imbalance in appropriate coagulation, which plays a crucial role in the development of cardiovascular diseases. These changes in haemostasis are not only affected by age but also by gender and the effects of hormones, or lack thereof in menopause for older females, ethnicity, other comorbidities, medication interactions, and overall health as we age. Another confounding factor is how we measure fibrinogen and coagulation through laboratory and point-of-care testing and how our decision-making on disease and treatment (including anticoagulation) is managed. It is known throughout life that in normal healthy individuals the levels of fibrinogen and coagulation factors change, however, reference intervals to guide diagnosis and management are based on only two life stages, paediatric, and adult ranges. There are no specific diagnostic guidelines based on reference intervals for an older population. How ageing relates to alterations in haemostasis and the impact of the disease will be discussed in this chapter. Along with the effect of anticoagulation, laboratory testing of fibrinogen and coagulation, future directions, and implications will be presented.
Collapse
Affiliation(s)
- Rebecca Donkin
- The University of the Sunshine Coast, School of Health and Behavioural Sciences, Sippy Downs, QLD, Australia. .,Griffith University, School of Medicine and Dentistry, Gold Coast, QLD, Australia.
| | - Yoke Lin Fung
- The University of the Sunshine Coast, School of Health and Behavioural Sciences, Sippy Downs, QLD, Australia
| | - Indu Singh
- Griffith University, School of Pharmacy and Medical Science, Gold Coast, QLD, Australia
| |
Collapse
|
8
|
Kristobak BM, McCarthy ML, Keneally RJ, Amberman KD, Ellis HJ, Call RC. Citrate does not change viscoelastic haemostatic assays after cardiopulmonary bypass. Ann Card Anaesth 2022; 25:453-459. [PMID: 36254910 PMCID: PMC9732968 DOI: 10.4103/aca.aca_34_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/10/2021] [Accepted: 07/25/2021] [Indexed: 06/16/2023] Open
Abstract
CONTEXT Viscoelastic hemostatic assays (VHA) are commonly used to identify specific cellular and humoral causes for bleeding in cardiac surgery patients. Cardiopulmonary bypass (CPB) alterations to coagulation are observable on VHA. Citrated VHA can approximate fresh whole blood VHA when kaolin is used as the activator in healthy volunteers. Some have suggested that noncitrated blood is more optimal than citrated blood for point-of-care analysis in some populations. AIMS To determine if storage of blood samples in citrate after CPB alters kaolin activated VHA results. SETTINGS AND DESIGN This was a prospective observational cohort study at a single tertiary care teaching hospital. METHODS AND MATERIAL Blood samples were subjected to VHA immediately after collection and compared to samples drawn at the same time and stored in citrate for 30, 90, and 150 min prior to kaolin activated VHA both before and after CPB. STATISTICAL ANALYSIS USED VHA results were compared using paired T-tests and Bland-Altman analysis. RESULTS Maximum clot strength and time to clot initiation were not considerably different before or after CPB using paired T-tests or Bland-Altman Analysis. CONCLUSIONS Citrated samples appear to be a clinically reliable substitute for fresh samples for maximum clot strength and time to VHA clot initiation after CPB. Concerns about the role of citrate in altering the validity of the VHA samples in the cardiac surgery population seem unfounded.
Collapse
Affiliation(s)
- Benjamin M. Kristobak
- Department of Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Margaret L. McCarthy
- Department of Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Ryan J. Keneally
- Department of Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Keith D. Amberman
- Department of Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Harvey J. Ellis
- Department of Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Robert C. Call
- Department of Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| |
Collapse
|
9
|
A Matzelle S, F Preuss J, M Weightman W, M Gibbs N. An audit of the diagnostic accuracy of the ROTEM®sigma for the identification of hypofibrinogenaemia in cardiac surgical patients. Anaesth Intensive Care 2022; 50:388-395. [PMID: 35722887 DOI: 10.1177/0310057x211067807] [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: 11/16/2022]
Abstract
The ROTEM®delta (TEM Innovations GmbH, Munich, Germany) has been used extensively worldwide for the assessment of coagulation in cardiac surgical patients. Recently, a new cartridge-based ROTEM device (ROTEM®sigma, TEM Innovations GmbH, Munich, Germany) has become available. In this paper we report an audit of the diagnostic accuracy of the ROTEM sigma for the identification of hypofibrinogenaemia in cardiac surgical patients. We hypothesised that the diagnostic accuracy of the ROTEMsigma for the identification of hypofibrinogenaemia would be in a similar range to that previously reported for the ROTEMdelta. Simultaneous blood samples for Clauss laboratory fibrinogen and ROTEMsigma FIBTEM measurements were obtained immediately after heparin reversal post-cardiopulmonary bypass in 200 adult cardiac surgical patients. The sensitivity, specificity, and positive and negative predictive values for FIBTEM A5 and A10 for the identification of hypofibrinogenaemia (Clauss fibrinogen <1.5 g/l) were calculated. The prevalence of hypofibrinogenaemia across the 200 patients was 8%. The mean sensitivity and specificity of FIBTEM A10 ≤8 mm for the identification of hypofibrinogenaemia were 0.75 and 0.90 respectively, which are in a similar range to that reported in several previous studies using the ROTEMdelta. For FIBTEM A5 ≤6 mm the values were 0.63 and 0.98 respectively. The predictive values were also in a similar range to those previously reported for the ROTEMdelta, with low false negative rates (2% for A10 ≤8 mm; 3% for A5 ≤6 mm). These findings support the use of the ROTEMsigma as an alternative to the ROTEMdelta for the identification of hypofibrinogenaemia post-cardiopulmonary bypass in cardiac surgical patients. However, further studies are required in other settings.
Collapse
Affiliation(s)
- Shannon A Matzelle
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Australia.,Department of Anaesthesia, St John of God Hospital, Australia
| | - James F Preuss
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Australia.,Department of Anaesthesia, St John of God Hospital, Australia
| | - William M Weightman
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Australia.,Department of Anaesthesia, St John of God Hospital, Australia
| | - Neville M Gibbs
- Department of Anaesthesia, Sir Charles Gairdner Hospital, Australia.,Department of Anaesthesia, St John of God Hospital, Australia
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Pavoni V, Gianesello L, Conti D, Ballo P, Dattolo P, Prisco D, Görlinger K. "In Less than No Time": Feasibility of Rotational Thromboelastometry to Detect Anticoagulant Drugs Activity and to Guide Reversal Therapy. J Clin Med 2022; 11:1407. [PMID: 35268498 PMCID: PMC8911211 DOI: 10.3390/jcm11051407] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/23/2022] [Accepted: 03/03/2022] [Indexed: 02/04/2023] Open
Abstract
Anticoagulant drugs (i.e., unfractionated heparin, low-molecular-weight heparins, vitamin K antagonists, and direct oral anticoagulants) are widely employed in preventing and treating venous thromboembolism (VTE), in preventing arterial thromboembolism in nonvalvular atrial fibrillation (NVAF), and in treating acute coronary diseases early. In certain situations, such as bleeding, urgent invasive procedures, and surgical settings, the evaluation of anticoagulant levels and the monitoring of reversal therapy appear essential. Standard coagulation tests (i.e., activated partial thromboplastin time (aPTT) and prothrombin time (PT)) can be normal, and the turnaround time can be long. While the role of viscoelastic hemostatic assays (VHAs), such as rotational thromboelastometry (ROTEM), has successfully increased over the years in the management of bleeding and thrombotic complications, its usefulness in detecting anticoagulants and their reversal still appears unclear.
Collapse
Affiliation(s)
- Vittorio Pavoni
- Anesthesia and Intensive Care Unit, Emergency Department and Critical Care Area, Santa Maria Annunziata Hospital, Bagno a Ripoli, 50012 Florence, Italy; (V.P.); (D.C.)
| | - Lara Gianesello
- Department of Anesthesia and Intensive Care, Orthopedic Anesthesia, University-Hospital Careggi, 50134 Florence, Italy
| | - Duccio Conti
- Anesthesia and Intensive Care Unit, Emergency Department and Critical Care Area, Santa Maria Annunziata Hospital, Bagno a Ripoli, 50012 Florence, Italy; (V.P.); (D.C.)
| | - Piercarlo Ballo
- Cardiology Unit, Santa Maria Annunziata Hospital, Bagno a Ripoli, 50012 Florence, Italy;
| | - Pietro Dattolo
- Nephrology Unit Florence 1, Santa Maria Annunziata Hospital, Bagno a Ripoli, 50012 Florence, Italy;
| | - Domenico Prisco
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy;
| | - Klaus Görlinger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany;
- Medical Department, Tem Innovations, 81829 Munich, Germany
| |
Collapse
|
12
|
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.
Collapse
|
13
|
Bartoszko J, Karkouti K. Managing the coagulopathy associated with cardiopulmonary bypass. J Thromb Haemost 2021; 19:617-632. [PMID: 33251719 DOI: 10.1111/jth.15195] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/29/2022]
Abstract
Cardiopulmonary bypass (CPB) has allowed for significant surgical advancements, but accompanying risks can be significant and must be expertly managed. One of the foremost risks is coagulopathic bleeding. Increasing levels of bleeding in cardiac surgical patients at the time of separation from CPB are associated with poor outcomes and mortality. CPB-associated coagulopathy is typically multifactorial and rarely due to inadequate reversal of systemic heparin alone. The components of the bypass circuit induce systemic inflammation and multiple disturbances of the coagulation and fibrinolytic systems. Anticipating coagulopathy is the first step in managing it, and specific patient and procedural risk factors have been identified as predictors of excessive bleeding. Medication management pre-procedure is critical, as patients undergoing cardiac surgery are commonly on anticoagulants or antiplatelet agents. Important adjuncts to avoid transfusion include antifibrinolytics, and perfusion practices such as red cell salvage, sequestration, and retrograde autologous priming of the bypass circuit have varying degrees of evidence supporting their use. Understanding the patient's coagulation status helps target product replacement and avoid larger volume transfusion. There is increasing recognition of the role of point-of-care viscoelastic and functional platelet testing. Common pitfalls in the management of post-CPB coagulopathy include overdosing protamine for heparin reversal, imperfect laboratory measures of thrombin generation that result in normal or near-normal laboratory results in the presence of continued bleeding, and delayed recognition of surgical bleeding. While challenging, the effective management of CPB-associated coagulopathy can significantly improve patient outcomes.
Collapse
Affiliation(s)
- Justyna Bartoszko
- Department of Anesthesia and Pain Management, Sinai Health System, Women's College Hospital, University Health Network, Toronto, ON, Canada
- Department of Anesthesia and Pain Management, University of Toronto, Toronto, ON, Canada
| | - Keyvan Karkouti
- Department of Anesthesia and Pain Management, Sinai Health System, Women's College Hospital, University Health Network, Toronto, ON, Canada
- Department of Anesthesia and Pain Management, University of Toronto, Toronto, ON, Canada
- Peter Munk Cardiac Centre, University Health Network, Toronto, ON, Canada
- Interdepartmental Division of Critical Care, Department of Medicine, University of Toronto, Toronto, ON, Canada
- Institute for Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
14
|
Yabrodi M, Ciccotello C, Bhatia AK, Davis J, Maher KO, Deshpande SR. Measures of anticoagulation and coagulopathy in pediatric cardiac extracorporeal membrane oxygenation patients. Int J Artif Organs 2020; 45:60-67. [PMID: 33372565 DOI: 10.1177/0391398820985525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Pediatric cardiac Extracorporeal Membrane Oxygenation (ECMO) is effective, however, bleeding and clotting issues continue to cause significant morbidity and mortality. The objective of this study was to assess the correlation between measures of anticoagulation, the heparin dose in pediatric cardiac ECMO patients as well as to assess covert coagulopathy as measured by thromboelastography (TEG). METHODS Retrospective study of cardiac ECMO patients in a large, academic referral center using anticoagulation data during the ECMO support. RESULTS Five hundred and eighty-four sets of anticoagulation tests and 343 TEG from 100 patients with median age of 26 days were reviewed. ECMO was post-surgical for congenital heart disease in 94% with resuscitation (ECPR) in 38% of the cases. Mean duration of support was 6.3 days. Overall survival to discharge was 35%. There was low but statistically significant correlation between individual anticoagulation measures and low correlation between Anti-Xa levels and heparin dose. There was no correlation between PTT and heparin dose. 343 TEG with Heparinase were reviewed to assess covert coagulopathy which was present in 25% of these. The coagulopathy noted was pro-hemorrhagic in almost all of the cases with high values of reaction time and kinetics and low values for angle and maximum amplitude. CONCLUSION Coagulation monitoring on ECMO may benefit from addition of Heparinase TEG to diagnose covert coagulopathy which can contribute to significant hemorrhagic complications. There is a need for a prospective, thromboelastography guided intervention trial to reduce coagulopathy related morbidity and mortality in ECMO.
Collapse
Affiliation(s)
| | | | - Ajay K Bhatia
- Children's Hospital New Orleans, New Orleans, LA, USA
| | - Joel Davis
- Children's Healthcare of Atlanta, Sibley Heart Center Cardiology, Atlanta, GA, USA
| | - Kevin O Maher
- Children's Healthcare of Atlanta, Sibley Heart Center Cardiology, Atlanta, GA, USA
| | | |
Collapse
|
15
|
He S, Cao H, Thålin C, Svensson J, Blombäck M, Wallén H. The Clotting Trigger Is an Important Determinant for the Coagulation Pathway In Vivo or In Vitro-Inference from Data Review. Semin Thromb Hemost 2020; 47:63-73. [PMID: 33348413 DOI: 10.1055/s-0040-1718888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Blood coagulation comprises a series of enzymatic reactions leading to thrombin generation and fibrin formation. This process is commonly illustrated in a waterfall-like manner, referred to as the coagulation cascade. In vivo, this "cascade" is initiated through the tissue factor (TF) pathway, once subendothelial TF is exposed and bound to coagulation factor VII (FVII) in blood. In vitro, a diminutive concentration of recombinant TF (rTF) is used as a clotting trigger in various global hemostasis assays such as the calibrated automated thrombogram, methods that assess fibrin turbidity and fibrin viscoelasticity tests such as rotational thromboelastometry. These assays aim to mimic in vivo global coagulation, and are useful in assessing hyper-/hypocoagulable disorders or monitoring therapies with hemostatic agents. An excess of rTF, a sufficient amount of negatively charged surfaces, various concentrations of exogenous thrombin, recombinant activated FVII, or recombinant activated FIXa are also used to initiate activation of specific sub-processes of the coagulation cascade in vitro. These approaches offer important information on certain specific coagulation pathways, while alterations in pro-/anticoagulants not participating in these pathways remain undetectable by these methods. Reviewing available data, we sought to enhance our knowledge of how choice of clotting trigger affects the outcome of hemostasis assays, and address the call for further investigations on this topic.
Collapse
Affiliation(s)
- Shu He
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.,Division of Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Honglie Cao
- Division of Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Charlotte Thålin
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Jan Svensson
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Margareta Blombäck
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.,Division of Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Håkan Wallén
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| |
Collapse
|
16
|
Kataife ED, Adrover A, Viso HD, Mileo FG. Intraoperative Hemostatic Management of a Cardiohepatic Transplant With Rotational Thromboelastometry: A Case Report. A A Pract 2020; 14:e01358. [DOI: 10.1213/xaa.0000000000001358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
17
|
Kristobak BM, Brooks DI, Bell AG, Willett PB, Lodico DN. Does acute normovolemic hemodilution shorten viscoelastic test clot initiation after cardiopulmonary bypass? J Clin Anesth 2020; 67:109983. [PMID: 32659379 DOI: 10.1016/j.jclinane.2020.109983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/01/2020] [Accepted: 07/03/2020] [Indexed: 11/20/2022]
Affiliation(s)
- Benjamin M Kristobak
- Walter Reed National Military Medical Center, Department of Anesthesiology, 8901 Rockville Pike, Bethesda, MD, 20889, USA.
| | - Daniel I Brooks
- Walter Reed National Military Medical Center, Department of Research Programs, 8901 Rockville Pike, Bethesda, MD 20889, USA
| | - Austin G Bell
- Walter Reed National Military Medical Center, Department of Anesthesiology, 8901 Rockville Pike, Bethesda, MD, 20889, USA
| | - Peter B Willett
- Walter Reed National Military Medical Center, Department of Anesthesiology, 8901 Rockville Pike, Bethesda, MD, 20889, USA
| | - Derek N Lodico
- Walter Reed National Military Medical Center, Department of Anesthesiology, 8901 Rockville Pike, Bethesda, MD, 20889, USA
| |
Collapse
|
18
|
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.
Collapse
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
| |
Collapse
|
19
|
Predicting results of fibrinogen and platelet levels by TEG6s during cardiopulmonary bypass: A pilot study. J Clin Anesth 2019; 58:59-60. [DOI: 10.1016/j.jclinane.2019.05.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/03/2019] [Accepted: 05/05/2019] [Indexed: 11/23/2022]
|
20
|
Guarnieri M, De Gasperi A, Gianni S, Baciarello M, Bellini V, Bignami E. From the Physiology to the Bedside: Fluid Therapy in Cardiac Surgery and the ICU. CURRENT ANESTHESIOLOGY REPORTS 2019. [DOI: 10.1007/s40140-019-00341-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
21
|
Görlinger K, Pérez-Ferrer A, Dirkmann D, Saner F, Maegele M, Calatayud ÁAP, Kim TY. The role of evidence-based algorithms for rotational thromboelastometry-guided bleeding management. Korean J Anesthesiol 2019; 72:297-322. [PMID: 31096732 PMCID: PMC6676023 DOI: 10.4097/kja.19169] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/08/2019] [Indexed: 02/07/2023] Open
Abstract
Rotational thromboelastometry (ROTEM) is a point-of-care viscoelastic method and enables to assess viscoelastic profiles of whole blood in various clinical settings. ROTEM-guided bleeding management has become an essential part of patient blood management (PBM) which is an important concept in improving patient safety. Here, ROTEM testing and hemostatic interventions should be linked by evidence-based, setting-specific algorithms adapted to the specific patient population of the hospitals and the local availability of hemostatic interventions. Accordingly, ROTEM-guided algorithms implement the concept of personalized or precision medicine in perioperative bleeding management (‘theranostic’ approach). ROTEM-guided PBM has been shown to be effective in reducing bleeding, transfusion requirements, complication rates, and health care costs. Accordingly, several randomized-controlled trials, meta-analyses, and health technology assessments provided evidence that using ROTEM-guided algorithms in bleeding patients resulted in improved patient’s safety and outcomes including perioperative morbidity and mortality. However, the implementation of ROTEM in the PBM concept requires adequate technical and interpretation training, education and logistics, as well as interdisciplinary communication and collaboration.
Collapse
Affiliation(s)
- Klaus Görlinger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany.,Tem Innovations, Munich, Germany
| | - Antonio Pérez-Ferrer
- Department of Anesthesiology, Infanta Sofia University Hospital, San Sebastián de los Reyes, Madrid, Spain
| | - Daniel Dirkmann
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Fuat Saner
- Department of General, Visceral and Transplant Surgery, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Marc Maegele
- Department for Trauma and Orthopedic Surgery, CologneMerheim Medical Center (CMMC), Cologne, Germany.,Institute for Research in Operative Medicine (IFOM), University Witten/Herdecke (UW/H), Campus Cologne-Merheim, Cologne, Germany
| | - Ángel Augusto Pérez Calatayud
- Terapia Intensiva Adultos, Hospital de Especialidades del Niño y la Mujer, Coordinador Grupo Mexicano para el Estudio de la Medicina Intensiva, Colegio Mexicano de Especialistas en Obstetrica Critica (COMEOC), Queretarco, Mexico
| | - Tae-Yop Kim
- Department of Anesthesiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| |
Collapse
|
22
|
Hashmi NK, Ghadimi K, Srinivasan AJ, Li YJ, Raiff RD, Gaca JG, Root AG, Barac YD, Ortel TL, Levy JH, Welsby IJ. Three-factor prothrombin complex concentrates for refractory bleeding after cardiovascular surgery within an algorithmic approach to haemostasis. Vox Sang 2019; 114:374-385. [PMID: 30937927 DOI: 10.1111/vox.12774] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 02/22/2019] [Accepted: 02/25/2019] [Indexed: 01/11/2023]
Abstract
BACKGROUND/OBJECTIVES Prothrombin complex concentrates (PCC) are increasingly administered off-label in the United States to treat bleeding in cardiovascular surgical patients and carry the potential risk for acquired thromboembolic side-effects after surgery. Therefore, we hypothesized that the use of low-dose 3-factor (3F) PCC (20-30 IU/kg), as part of a transfusion algorithm, reduces bleeding without increasing postoperative thrombotic/thromboembolic complications. MATERIALS/METHODS After IRB approval, we retrospectively analysed 114 consecutive, complex cardiovascular surgical patients (age > 18 years), between February 2014 and June 2015, that received low-dose 3F-PCC (Profilnine® ), of which seven patients met established exclusion criteria. PCC was dosed according to an institutional perioperative algorithm. Allogeneic transfusions were recorded before and after PCC administration (n = 107). The incidence of postoperative thromboembolic events was determined within 30 days of surgery, and Factor II levels were measured in a subset of patients (n = 20) as a quality control measure to avoid excessive PCC dosing. RESULTS Total allogeneic blood product transfusion reached a mean of 12·4 ± 9·9 units before PCC and 5·0 ± 6·3 units after PCC administration (P < 0·001). The mean PCC dose was 15·8 ± 7·1 IU/kg. Four patients (3·8%) each experienced an ischaemic stroke on postoperative day 1, 2, 4 and 27. Seven patients (6·5%) had acquired venous thromboembolic disease within 10 days of surgery. Median factor II level after transfusion algorithm adherence and PCC administration was 87%. CONCLUSIONS 3F-PCC use for refractory bleeding after cardiovascular surgery resulted in reduced transfusion of allogeneic blood and blood products. Adherence to this algorithmic approach was associated with an acceptable incidence of postoperative thrombotic/thromboembolic complications.
Collapse
Affiliation(s)
- Nazish K Hashmi
- Department of Anesthesiology & Critical Care, Divisions of Cardiothoracic Anaesthesia & Critical Care Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Kamrouz Ghadimi
- Department of Anesthesiology & Critical Care, Divisions of Cardiothoracic Anaesthesia & Critical Care Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Amudan J Srinivasan
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Yi-Ju Li
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA
| | - Robert D Raiff
- Center for Medication Policy, Department of Pharmacy, Duke University Hospital Durham, NC, USA
| | - Jeffrey G Gaca
- Department of Surgery, Division of Cardiothoracic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Adam G Root
- Center for Medication Policy, Department of Pharmacy, Duke University Hospital Durham, NC, USA
| | - Yaron D Barac
- Department of Surgery, Division of Cardiothoracic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Thomas L Ortel
- Departments of Pathology, Hematology, and Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Jerrold H Levy
- Department of Anesthesiology & Critical Care, Divisions of Cardiothoracic Anaesthesia & Critical Care Medicine, Duke University School of Medicine, Durham, NC, USA.,Department of Surgery, Division of Cardiothoracic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Ian J Welsby
- Department of Anesthesiology & Critical Care, Divisions of Cardiothoracic Anaesthesia & Critical Care Medicine, Duke University School of Medicine, Durham, NC, USA
| |
Collapse
|
23
|
Bialkower M, McLiesh H, Manderson CA, Tabor RF, Garnier G. Rapid paper diagnostic for plasma fibrinogen concentration. Analyst 2019; 144:4848-4857. [DOI: 10.1039/c9an00616h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Fibrinogen is one of the first proteins to be depleted in heavily bleeding patients. In this study, we have developed a new paper-based diagnostic to quantify the fibrinogen concentration in blood at room temperature.
Collapse
Affiliation(s)
- Marek Bialkower
- BioPRIA and Department of Chemical Engineering
- Monash University
- Clayton
- Australia
| | - Heather McLiesh
- BioPRIA and Department of Chemical Engineering
- Monash University
- Clayton
- Australia
| | - Clare A. Manderson
- BioPRIA and Department of Chemical Engineering
- Monash University
- Clayton
- Australia
| | - Rico F. Tabor
- School of Chemistry
- Monash University
- Clayton
- Australia
| | - Gil Garnier
- BioPRIA and Department of Chemical Engineering
- Monash University
- Clayton
- Australia
| |
Collapse
|
24
|
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.
Collapse
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
| |
Collapse
|
25
|
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
| |
Collapse
|
26
|
Roullet S, de Maistre E, Ickx B, Blais N, Susen S, Faraoni D, Garrigue D, Bonhomme F, Godier A, Lasne D. Position of the French Working Group on Perioperative Haemostasis (GIHP) on viscoelastic tests: What role for which indication in bleeding situations? Anaesth Crit Care Pain Med 2018; 38:539-548. [PMID: 29355793 DOI: 10.1016/j.accpm.2017.12.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/18/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022]
Abstract
PURPOSE Viscoelastic tests (VETs), thromboelastography (TEG®) and thromboelastometry (ROTEM®) are global tests of coagulation performed on whole blood. They evaluate the mechanical strength of a clot as it builds and develops after coagulation itself. The time required to obtain haemostasis results remains a major problem for clinicians dealing with bleeding, although some teams have developed a rapid laboratory response strategy. Indeed, the value of rapid point-of-care diagnostic devices such as VETs has increased over the years. However, VETs are not standardised and there are few recommendations from the learned societies regarding their use. In 2014, the recommendations of the International Society of Thrombosis and Haemostasis (ISTH) only concerned haemophilia. The French Working Group on Perioperative haemostasis (GIHP) therefore proposes to summarise knowledge on the clinical use of these techniques in the setting of emergency and perioperative medicine. METHODS A review of the literature. PRINCIPAL FINDINGS The role of the VETs seems established in the management of severe trauma and in cardiac surgery, both adult and paediatric. In other situations, their role remains to be defined: hepatic transplantation, postpartum haemorrhage, and non-cardiac surgery. They must be part of the global management of haemostasis based on algorithms defined in each centre and for each population of patients. Their position at the bedside or in the laboratory is a matter of discussion between clinicians and biologists. CONCLUSION VETs must be included in algorithms. In consultation with the biology laboratory, these devices should be situated according to the way each centre functions.
Collapse
Affiliation(s)
- Stéphanie Roullet
- Inserm U 12-11, service anesthésie-réanimation 1, université de Bordeaux, CHU de Bordeaux, 33000 Bordeaux, France.
| | | | - Brigitte Ickx
- Université Libre de Bruxelles, Erasme University Hospital, Department of Anesthesiology, Brussels, Belgium
| | - Normand Blais
- Hématologie et oncologie médicale, CHUM, Montréal, Canada
| | - Sophie Susen
- Institut d'hématologie et transfusion, CHRU de Lille, 59037 Lille, France
| | - David Faraoni
- Department of Anaesthesia and Pain Medicine, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | | | - Fanny Bonhomme
- Service d'anesthésiologie, hôpital universitaire de Genève, Geneva, Switzerland
| | - Anne Godier
- Service d'anesthésie-réanimation, Fondation Rothschild, 75019 Paris, France
| | - Dominique Lasne
- Laboratoire d'hématologie, hôpital Necker, 75015 Paris, France
| | | |
Collapse
|
27
|
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
| |
Collapse
|
28
|
Fabbro M, Gutsche JT, Miano TA, Augoustides JG, Patel PA. Comparison of Thrombelastography-Derived Fibrinogen Values at Rewarming and Following Cardiopulmonary Bypass in Cardiac Surgery Patients. Anesth Analg 2017; 123:570-7. [PMID: 27541720 DOI: 10.1213/ane.0000000000001465] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The inflated costs and documented deleterious effects of excess perioperative transfusion have led to the investigation of targeted coagulation factor replacement strategies. One particular coagulation factor of interest is factor I (fibrinogen). Hypofibrinogenemia is typically tested for using time-consuming standard laboratory assays. The thrombelastography (TEG)-based functional fibrinogen level (FLEV) provides an assessment of whole blood clot under platelet inhibition to report calculated fibrinogen levels in significantly less time. If FLEV values obtained on cardiopulmonary bypass (CPB) during rewarming are similar to values obtained immediately after the discontinuation of CPB, then rewarming values could be used for preemptive ordering of appropriate blood product therapy. METHODS Fifty-one cardiac surgery patients were enrolled into this prospective nonrandomized study to compare rewarming fibrinogen values with postbypass values using TEG FLEV assays. Baseline, rewarming, and postbypass fibrinogen values were recorded for all patients using both standard laboratory assay (Clauss method) and FLEV. Mixed-effects regression models were used to examine the change in TEG FLEV values over time. Bland-Altman analysis was used to examine bias and the limits of agreement (LOA) between the standard laboratory assay and FLEVs. RESULTS Forty-nine patients were included in the analysis. The mean FLEV value during rewarming was 333.9 mg/dL compared with 332.8 mg/dL after protamine, corresponding to an estimated difference of -1.1 mg/dL (95% confidence interval [CI], -25.8 to 23.6; P = 0.917). Rewarming values were available on average 47 minutes before postprotamine values. Bland-Altman analysis showed poor agreement between FLEV and standard assays: mean difference at baseline was 92.5 mg/dL (95% CI, 71.1 to 114.9), with a lower LOA of -56.5 mg/dL (95% CI, -94.4 to -18.6) and upper LOA of 242.4 mg/dL (95% CI, 204.5 to 280.3). The difference between assays increased after CPB and persisted after protamine administration. CONCLUSIONS Our results revealed negligible change in FLEV values from the rewarming to postbypass periods, with a CI that does not include clinically meaningful differences. These findings suggest that rewarming samples could be utilized for ordering fibrinogen-specific therapies before discontinuation of CPB. Mean FLEV values were consistently higher than the reference standard at each time point. Moreover, bias was highly heterogeneous among samples, implying a large range of potential differences between assays for any 1 patient.
Collapse
Affiliation(s)
- Michael Fabbro
- From the *Department of Anesthesiology, University of Miami, Miami, Florida; †Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, Pennsylvania; and ‡Department of Biostatistics and Epidemiology, Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | | | | | | |
Collapse
|
29
|
Winearls J, Reade M, Miles H, Bulmer A, Campbell D, Görlinger K, Fraser JF. Targeted Coagulation Management in Severe Trauma: The Controversies and the Evidence. Anesth Analg 2017; 123:910-24. [PMID: 27636575 DOI: 10.1213/ane.0000000000001516] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Hemorrhage in the setting of severe trauma is a leading cause of death worldwide. The pathophysiology of hemorrhage and coagulopathy in severe trauma is complex and remains poorly understood. Most clinicians currently treating trauma patients acknowledge the presence of a coagulopathy unique to trauma patients-trauma-induced coagulopathy (TIC)-independently associated with increased mortality. The complexity and incomplete understanding of TIC has resulted in significant controversy regarding optimum management. Although the majority of trauma centers utilize fixed-ratio massive transfusion protocols in severe traumatic hemorrhage, a widely accepted "ideal" transfusion ratio of blood to blood products remains elusive. The recent use of viscoelastic hemostatic assays (VHAs) to guide blood product replacement has further provoked debate as to the optimum transfusion strategy. The use of VHA to quantify the functional contributions of individual components of the coagulation system may permit targeted treatment of TIC but remains controversial and is unlikely to demonstrate a mortality benefit in light of the heterogeneity of the trauma population. Thus, VHA-guided algorithms as an alternative to fixed product ratios in trauma are not universally accepted, and a hybrid strategy starting with fixed-ratio transfusion and incorporating VHA data as they become available is favored by some institutions. We review the current evidence for the management of coagulopathy in trauma, the rationale behind the use of targeted and fixed-ratio approaches and explore future directions.
Collapse
Affiliation(s)
- James Winearls
- From the *Intensive Care Unit, Gold Coast University Hospital, Southport, Queensland, Australia; †Gold Coast University Hospital Critical Care Research Group, Queensland, Australia; ‡Joint Health Command, Australian Defence Force and Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, Queensland, Australia; §Heart Foundation Research Centre, School of Medicine, Griffith University, Gold Coast, Queensland, Australia; ∥Trauma Department, Gold Coast University Hospital, Queensland, Australia; ¶Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany; #Tem International GmbH, Munich, Germany; and **Critical Care Research Group, The Prince Charles Hospital and University of Queensland, Brisbane, Queensland, Australia
| | | | | | | | | | | | | |
Collapse
|
30
|
Introduction of thromboelastometry-guided administration of fresh-frozen plasma is associated with decreased allogeneic blood transfusions and post-operative blood loss in cardiopulmonary-bypass surgery. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2017; 16:244-252. [PMID: 28488956 DOI: 10.2450/2017.0265-16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 01/11/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Cardiac surgery is frequently associated with excessive blood loss requiring multiple blood transfusions which are, in turn, associated with increased morbidity and mortality. We evaluated the effectiveness of rotational thromboelastometry (ROTEM®)-guided administration of fresh-frozen plasma (FFP) with regards to blood loss, transfusion requirements, and major post-operative complications. MATERIALS AND METHODS Coagulation management in 68 prospective patients undergoing cardiac surgery with cardiopulmonary bypass was based on a treatment algorithm guided by ROTEM® measurements. The primary end-point was blood loss at 24 hours after surgery. Secondary end-points were: (i) need for allogeneic blood products after cardiopulmonary bypass and 24 hours post-operatively, and (ii) post-operative complications until discharge. The results were compared with those of a retrospective, control group of 69 patients who received empirical coagulation management before implementation of the ROTEM®-guided algorithm. RESULTS Although patients with significantly lower haemoglobin levels received less packed red blood cells (PRBC) (840 vs 1,120 mL; p=0.031) and FFP (480 vs 720 mL; p=0.007) after introduction of the ROTEM® algorithm, the intra-operative blood loss and post-operative haemoglobin levels were similar in the ROTEM® and the retrospective control groups. In addition to significantly reduced blood loss and decreased requirements for PRBC (30.8 vs 62.3%; p<0.001) and FFP (25.0 vs 56.5%; p<0.001), the amounts of PRBC (315 vs 840 mL; p<0.001) and FFP (480 vs 840 mL; p=0.001) received during the first 24 hours after surgery were significantly reduced in the ROTEM® group, as was the duration of post-operative hospitalisation. DISCUSSION Compared with empirical treatment, timely ROTEM®-guided FFP administration during cardiac surgery can reduce not only overall blood product use and blood loss but also the duration of hospitalisation.
Collapse
|
31
|
Willems A, Savan V, Faraoni D, De Ville A, Rozen L, Demulder A, Van der Linden P. Heparin Reversal After Cardiopulmonary Bypass: Are Point-of-Care Coagulation Tests Interchangeable? J Cardiothorac Vasc Anesth 2016; 30:1184-9. [DOI: 10.1053/j.jvca.2016.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Indexed: 11/11/2022]
|
32
|
Affiliation(s)
- O Grottke
- Klinik für Anästhesiologie, Universitätsklinikum Aachen, Pauwelsstrasse 30, 52074, Aachen, Deutschland.
| |
Collapse
|
33
|
Nogami K. The utility of thromboelastography in inherited and acquired bleeding disorders. Br J Haematol 2016; 174:503-14. [PMID: 27264484 DOI: 10.1111/bjh.14148] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 03/30/2016] [Indexed: 01/08/2023]
Abstract
Thromboelastography (TEG) was first described by Hartert in 1948, and was designed to monitor viscoelastic clot strength in whole blood in real time. The current TEG method and Rotational Thromboelastometry (ROTEM) were subsequently developed from the original principles. Both of the modern methods provide data by measuring changes in the viscoelastic strength of a small sample of clotting blood in response to a constant rotational force. The important advantage of these techniques is to visually observe and quantify blood coagulation including the propagation, stabilization and dissolution phases of clot formation under low shear conditions. Analysis of the results provides detailed kinetic data on fibrin generation, clot strength and fibrinolysis. These TEG/ROTEM analyses therefore enable evaluation of global clotting function and the monitoring of haemostatic treatment in various clinical situations, not only in patients with genetic bleeding disorders, such as haemophilia, but also in patients undergoing cardiac surgery, liver transplantation or suffering from traumatic injury. Some evidence suggests that haemostatic management using TEG/ROTEM leads to a reduction in total transfusions of whole blood or clotting factors. Wider clinical application of this technology seems likely.
Collapse
Affiliation(s)
- Keiji Nogami
- Department of Paediatrics, Nara Medical University, Kashihara, Nara, Japan
| |
Collapse
|
34
|
Espinosa A, Ruckert A, Navarro J, Videm V, Sletta BV. Are TEG®results in healthy blood donors affected by the transport of blood samples in a pneumatic tube system? Int J Lab Hematol 2016; 38:e73-6. [DOI: 10.1111/ijlh.12494] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Espinosa
- Department of Immunology and Transfusion Medicine; St. Olavs University Hospital; Trondheim Norway
| | - A. Ruckert
- Department of Immunology and Transfusion Medicine; St. Olavs University Hospital; Trondheim Norway
| | - J. Navarro
- Plant Radar Systems, Vestas; Oslo Norway
| | - V. Videm
- Department of Laboratory Medicine, Children's and Women's Health; Norwegian University of Science and technology; Trondheim Norway
| | - B. V. Sletta
- Department of Immunology and Transfusion Medicine; St. Olavs University Hospital; Trondheim Norway
| |
Collapse
|
35
|
Kelchtermans H, Pelkmans L, Bouwhuis A, Schurgers E, Lindhout T, Huskens D, Miszta A, Hemker HC, Lancé MD, de Laat B. Simultaneous measurement of thrombin generation and fibrin formation in whole blood under flow conditions. Thromb Haemost 2016; 116:134-45. [PMID: 27074907 DOI: 10.1160/th15-10-0801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 03/28/2016] [Indexed: 11/05/2022]
Abstract
Assays based on the formation of thrombin and fibrin are frequently used, and results are considered exchangeable in research/clinical settings. However, thrombin generation and fibrin formation do not always go hand in hand and flow profoundly influences thrombus formation. We describe the technical/clinical evaluation of an assay to simultaneously measure thrombin generation and fibrin formation under conditions of flow. Introduction of a fluorometer into a 'cone and base principle'-based rheometer allowed the measurement of thrombin generation (using a thrombin-sensitive substrate) and fibrin formation (changes in viscosity), while applying a linear shear flow. Increasing shear rates inversely related with thrombin generation and fibrin formation. Increasing fibrinogen concentrations in defibrinated plasma resulted in increased thrombin generation and fibrin formation. In pre-operative samples of 70 patients undergoing cardiothoracic surgery, fibrin formation and thrombin generation parameters correlated with fibrinogen content, rotational thromboelastometry (ROTEM) and whole blood Calibrated Automated Thrombinography (CAT) parameters, respectively. Upon dividing patients into two groups based on the median clot strength, a significant difference in perioperative/total blood loss was established. In conclusion, we clinically evaluated a method capable of simultaneously measuring thrombin generation and fibrin formation in plasma/whole blood under continuous flow, rendering our method one step closer to physiology. Importantly, our test proved to be indicative for the amount of blood loss during/after cardiothoracic surgery.
Collapse
Affiliation(s)
- Hilde Kelchtermans
- Hilde Kelchtermans, Oxfordlaan 70, Maastricht 6229EV, The Netherlands, Tel.: +31 43 388 58 94, Fax: +31 43 388 45 70, E-mail:
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Hans GA, Besser MW. The place of viscoelastic testing in clinical practice. Br J Haematol 2016; 173:37-48. [DOI: 10.1111/bjh.13930] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Gregory A. Hans
- Department of Anaesthesia and Intensive Care Medicine; CHU of Liege; Liege Belgium
| | | |
Collapse
|
37
|
Evans AS, Mazzeffi M, Ivascu NS, Dickerson S, Gutsche JT. Noteworthy Articles in 2015 for Cardiothoracic Critical Care. Semin Cardiothorac Vasc Anesth 2016; 20:24-33. [PMID: 26759154 DOI: 10.1177/1089253215626004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In 2015, the demand for the presence of cardiothoracic anesthesiologists outside of the cardiac operating rooms continues to expand. Most notably, cardiothoracic anesthesiologists now find themselves called on to care for patients postoperatively in the cardiothoracic surgical intensive care unit. This article is the first in this annual series to review relevant contributions in postoperative cardiac critical care that may influence the cardiac anesthesiologist. We explore the use of extracorporeal membrane oxygenation, management of postoperative atrial fibrillation and coagulopathy, metabolic support of the critically ill cardiothoracic surgical patient, and new insights into delirium and acute kidney injury.
Collapse
Affiliation(s)
- Adam S Evans
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | | | | | | |
Collapse
|
38
|
Mace H, Lightfoot N, McCluskey S, Selby R, Roy D, Timoumi T, Karkouti K. Validity of Thromboelastometry for Rapid Assessment of Fibrinogen Levels in Heparinized Samples During Cardiac Surgery: A Retrospective, Single-center, Observational Study. J Cardiothorac Vasc Anesth 2016; 30:90-5. [DOI: 10.1053/j.jvca.2015.04.030] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Indexed: 11/11/2022]
|
39
|
Ortmann E, Klein AA, Besser MW. Validation of viscoelastic coagulation tests during cardiopulmonary bypass: reply. J Thromb Haemost 2015; 13:2282. [PMID: 26407643 DOI: 10.1111/jth.13152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- E Ortmann
- Department of Anaesthesia and Intensive Care, Papworth Hospital, Cambridge, UK
- Department of Anaesthesia and Intensive Care, Kerckhoff-Klinik Heart and Lung Centre, Bad Nauheim, Germany
| | - A A Klein
- Department of Anaesthesia and Intensive Care, Papworth Hospital, Cambridge, UK
| | - M W Besser
- Department of Haematology, Addenbrooke's Hospital, Cambridge University Hospitals Foundation Trust, Cambridge, UK
| |
Collapse
|
40
|
Solomon C, Fickenscher K, Ormonde L, Ranucci M. Validation of viscoelastic coagulation tests during cardiopulmonary bypass: comment. J Thromb Haemost 2015; 13:2279-81. [PMID: 26332686 DOI: 10.1111/jth.13122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 08/21/2015] [Indexed: 12/01/2022]
Affiliation(s)
- C Solomon
- CSL Behring, Marburg, Germany
- Department of Anesthesiology, Perioperative Medicine and General Intensive Care, Paracelsus Medical University, Salzburg, Austria
| | | | - L Ormonde
- Department of Anaesthesiology, Santa Maria University Hospital, Lisbon, Portugal
| | - M Ranucci
- Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, IRCCS Policlinico San Donato, Milan, Italy
| |
Collapse
|