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Donohue JK, Iyanna N, Lorence JM, Brown JB, Guyette FX, Eastridge BJ, Nirula R, Vercruysse GA, O'Keeffe T, Joseph B, Neal MD, Sperry JL. Missingness matters: a secondary analysis of thromboelastography measurements from a recent prehospital randomized tranexamic acid clinical trial. Trauma Surg Acute Care Open 2024; 9:e001346. [PMID: 38375027 PMCID: PMC10875568 DOI: 10.1136/tsaco-2023-001346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024] Open
Abstract
Background Tranexamic acid (TXA) has been hypothesized to mitigate coagulopathy in patients after traumatic injury. Despite previous prehospital clinical trials demonstrating a TXA survival benefit, none have demonstrated correlated changes in thromboelastography (TEG) parameters. We sought to analyze if missing TEG data contributed to this paucity of findings. Methods We performed a secondary analysis of the Study of Tranexamic Acid During Air Medical and Ground Prehospital Transport Trial. We compared patients that received TEG (YES-TEG) and patients unable to be sampled (NO-TEG) to analyze subgroups in which to investigate TEG differences. TEG parameter differences across TXA intervention arms were assessed within subgroups disproportionately present in the NO-TEG relative to the YES-TEG cohort. Generalized linear models controlling for potential confounders were applied to findings with p<0.10 on univariate analysis. Results NO-TEG patients had lower prehospital systolic blood pressure (SBP) (100 (78, 140) vs 125 (88, 147), p<0.01), lower prehospital Glascow Coma Score (14 (3, 15) vs 15 (12, 15), p<0.01), greater rates of prehospital intubation (39.4% vs 24.4%, p<0.01) and greater mortality at 30 days (36.4% vs 6.8%, p<0.01). NO-TEG patients had a greater international normalized ratio relative to the YES-TEG subgroup (1.2 (1.1, 1.5) vs 1.1 (1.0, 1.2), p=0.04). Within a severe prehospital shock cohort (SBP<70), TXA was associated with a significant decrease in clot lysis at 30 min on multivariate analysis (β=-27.6, 95% CI (-51.3 to -3.9), p=0.02). Conclusions Missing data, due to the logistical challenges of sampling certain severely injured patients, may be associated with a lack of TEG parameter changes on TXA administration in the primary analysis. Previous demonstration of TXA's survival benefit in patients with severe prehospital shock in tandem with the current findings supports the notion that TXA acts at least partially by improving clot integrity. Level of evidence Level II.
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Affiliation(s)
- Jack K Donohue
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Nidhi Iyanna
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John M Lorence
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Joshua B Brown
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Frances X Guyette
- Department of Emergency Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Brian J Eastridge
- Department of Surgery, University of Texas Health San Antonio, San Antonio, Texas, USA
| | - Raminder Nirula
- Department of Surgery, University of Utah, Salt Lake City, Utah, USA
| | | | - Terence O'Keeffe
- Department of Surgery, University of Arizona, Tucson, Arizona, USA
| | - Bellal Joseph
- Department of Surgery, University of Arizona, Tucson, Arizona, USA
| | - Matthew D Neal
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jason L Sperry
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Jin WY, Yan ZW, Zhang X, Pan S, Huang CR, Guo KJ, Zheng X. The effect of triple-dose-intravenous tranexamic acid on blood loss in patients undergoing total hip arthroplasty without affecting blood coagulopathy: A prospective thromboelastographic analysis. ACTA ORTHOPAEDICA ET TRAUMATOLOGICA TURCICA 2023; 57:378-383. [PMID: 37987599 PMCID: PMC10837608 DOI: 10.5152/j.aott.2023.23001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
OBJECTIVE This study aimed to assess the safety and efficacy of triple-dose intravenous tranexamic acid (TXA) in patients following total hip arthroplasty (THA) using thromboelastography (TEG). METHODS One hundred thirty patients undergoing THA were prospectively enrolled in the study. According to the intravenous infusion TXA dose, patients were divided into single-dose (n=65; mean age=60.8 ± 8.1 years) and triple-dose groups (n=65; mean age=61.8 ± 8.6 years). Complete blood count (CBC), conventional coagulation tests (CCT), and TEG were conducted 1 day before the operation, on postoperative day 1 (POD1), and postoperative day 7 (POD7). Color Doppler ultrasonography was performed 1 day before the operation and on POD7. Drainage blood loss, total blood loss (TBL), hidden blood loss (HBL), deep vein thrombosis (DVT) incidence, and blood transfusion rates were calculated and recorded. The CCT, CBC, and TEG parameters were compared between the 2 groups. RESULTS Single- and triple-dose groups had significantly different hematocrit on POD7 (P < .05). No significant differences were found in CCT and hemoglobin at any corresponding time point between the 2 groups (P > .05). Despite the reaction time (R) on POD1 (P < .05), there were no significant differences in other TEG parameters at any other time point between the 2 groups (P > 0.05). For drainage blood loss and TBL, the triple-dose group had lesser blood loss than the single-dose group (P < .05). However, no significant differences were found for blood transfusion rate, HBL, or incidence of DVT (P > .05). CONCLUSION Compared with single-dose, triple-dose TXA can be more effective in decreasing blood loss without increasing DVT incidence in patients undergoing THA. Although there is a notable disparity in the R time on POD1, the administration of triple-dose TXA does not substantially impact the coagulation status as assessed by TEG and CCT.
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Affiliation(s)
- Wang-Yi Jin
- Department of Orthopaedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Republic of China
| | - Zi-Wen Yan
- Department of Orthopaedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Republic of China
| | - Xing Zhang
- Department of Orthopaedics, Changzhou Jintan First People's Hospital, Changzhou, Republic of China
| | - Sheng Pan
- Department of Orthopaedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Republic of China
| | - Chao-Ran Huang
- Department of Orthopaedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Republic of China
| | - Kai-Jin Guo
- Department of Orthopaedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Republic of China; Department of Orthopaedics, Changzhou Jintan First People's Hospital, Changzhou, Republic of China
| | - Xin Zheng
- Department of Orthopaedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Republic of China; Department of Orthopaedics, Zhujiang Hospital of Southern Medical University, Guangzhou, Republic of China
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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.
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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
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Platelet dysfunction persists after trauma despite balanced blood product resuscitation. Surgery 2023; 173:821-829. [PMID: 36280503 DOI: 10.1016/j.surg.2022.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 08/23/2022] [Accepted: 09/11/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Platelet activation and aggregation are critical to the initiation of hemostasis after trauma with hemorrhage. Platelet dysfunction is a well-recognized phenomenon contributing to trauma-induced coagulopathy. The goal of this study was to evaluate the timing and severity of platelet dysfunction in massively transfused, traumatically injured patients during the first 72 hours after injury and its association with 30-day survival. METHODS A retrospective secondary cohort study of platelet count and function was performed using samples from the Pragmatic Randomized Optimal Platelet and Plasma Ratios trial. Platelet characteristics were measured at 8 timepoints during the first 72 hours of hospitalization and compared between 30-day survivors and nonsurvivors. Platelet counts were assessed via flow cytometry. Platelet function was analyzed with the use of serial thrombelastography and impedance aggregometry with agonists arachidonic acid, adenosine diphosphate, collagen, thrombin receptor activating peptide, and ristocetin. RESULTS In total, 680 patients were included for analysis. Platelet counts were significantly lower from baseline to 72 hours after hospital admission with further 1.3 to 2-fold reductions noted in nonsurvivors compared to survivor patients. Platelet aggregation via adenosine diphosphate, arachidonic acid, collagen, thrombin receptor activating peptide, and ristocetin was significantly lower in nonsurvivors at all time points. The nadir of platelet aggregation was 2 to 6 hours after admission with significant improvements in viscoelastic maximum clot formation and agonist-induced aggregation by 12 hours without concomitant improvement in platelet count. CONCLUSION Platelet aggregability recovers 12 hours after injury independent of worsening thrombocytopenia. Failure of platelet function to recover portends a poor prognosis.
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Utility of viscoelastic hemostatic assay to guide hemostatic resuscitation in trauma patients: a systematic review. World J Emerg Surg 2022; 17:48. [PMID: 36100918 PMCID: PMC9472418 DOI: 10.1186/s13017-022-00454-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/05/2022] [Indexed: 11/15/2022] Open
Abstract
Objective Viscoelastic hemostatic assay (VHA) provides a graphical representation of a clot’s lifespan and reflects the real time of coagulation. It has been used to guide trauma resuscitation; however, evidence of the effectiveness of VHAs is still limited. This systematic review aims to summarize the published evidence to evaluate the VHA-guided strategy in resuscitating trauma patients. Methods The PubMed, Embase, and Web of Science databases were searched from their inception to December 13, 2021. Randomized controlled trials (RCTs) or observational studies comparing VHA-guided transfusion to controls in resuscitating trauma patients were included in this systematic review. Results Of the 7743 records screened, ten studies, including two RCTs and eight observational studies, met the inclusion criteria. There was great heterogeneity concerning study design, enrollment criterion, VHA device, VHA-guided strategy, and control strategy. Thrombelastography (TEG) was used as a guiding tool for transfusion in eight studies, and rotational thromboelastometry (ROTEM), and TEG or ROTEM were used in the other two studies. The overall risk of bias assessment was severe or mild in RCTs and was severe or moderate in observational studies. The main outcomes reported from the included studies were blood transfusion (n = 10), mortality (n = 10), hospital length of stay (LOS) (n = 7), intensive care unit LOS (n = 7), and cost (n = 4). The effect of the VHA-guided strategy was not always superior to the control. Most of the studies did not find significant differences in the transfusion amount of red blood cells (n = 7), plasma (n = 5), platelet (n = 7), cryoprecipitate/fibrinogen (n = 7), and mortality (n = 8) between the VHA-guided group and control group. Notable, two RCTs showed that the VHA-guided strategy was superior or equal to the conventional coagulation test-guided strategy in reducing mortality, respectively. Conclusion Although some studies demonstrated VHA-guided strategy probable benefit in reducing the need for blood transfusion and mortality when resuscitating trauma patients, the evidence is still not robust. The quality of evidence was primarily downgraded by the limited number of included studies and great heterogeneity and severe risk of bias in these. Further studies are strongly recommended. Supplementary Information The online version contains supplementary material available at 10.1186/s13017-022-00454-8.
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Mamczak CN, Speybroeck J, Stillson JE, Dynako J, Piscoya A, Peck EE, Aboukhaled M, Cancel E, McDonald M, Garcia D, Lovejoy J, Lubin S, Stanton R, Kutcher ME. Viscoelastic Hemostatic Assays for Orthopedic Trauma and Elective Procedures. J Clin Med 2022; 11:jcm11144029. [PMID: 35887803 PMCID: PMC9323142 DOI: 10.3390/jcm11144029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/07/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
The application of viscoelastic hemostatic assays (VHAs) (e.g., thromboelastography (TEG) and rotational thromboelastometry (ROTEM)) in orthopedics is in its relative infancy when compared with other surgical fields. Fortunately, several recent studies describe the emerging use of VHAs to quickly and reliably analyze the real-time coagulation and fibrinolytic status in both orthopedic trauma and elective orthopedic surgery. Trauma-induced coagulopathy—a spectrum of abnormal coagulation phenotypes including clotting factor depletion, inadequate thrombin generation, platelet dysfunction, and dysregulated fibrinolysis—remains a potentially fatal complication in severely injured and/or hemorrhaging patients whose timely diagnosis and management are aided by the use of VHAs. Furthermore, VHAs are an invaluable compliment to common coagulation tests by facilitating the detection of hypercoagulable states commonly associated with orthopedic injury and postoperative status. The use of VHAs to identify hypercoagulability allows for an accurate venous thromboembolism (VTE) risk assessment and monitoring of VTE prophylaxis. Until now, the data have been insufficient to permit an individualized approach with regard to dosing and duration for VTE thromboprophylaxis. By incorporating VHAs into routine practice, orthopedic surgeons will be better equipped to diagnose and treat the complete spectrum of coagulation abnormalities faced by orthopedic patients. This work serves as an educational primer and up-to-date review of the current literature on the use of VHAs in orthopedic surgery.
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Affiliation(s)
- Christiaan N. Mamczak
- Department of Orthopaedic Trauma, Florida Orthopaedic Institute, St. Petersburg, FL 33701, USA;
| | - Jacob Speybroeck
- Department of Orthopaedic Surgery, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA;
| | - John E. Stillson
- Department of Family Medicine, John Peter Smith Hospital, Fort Worth, TX 76104, USA
- Correspondence:
| | - Joseph Dynako
- Department of Orthopaedic Surgery, University of Mississippi Medical Center, Jackson, MS 39216, USA;
| | - Andres Piscoya
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center, Bethesda, MD 20814, USA;
| | - Ethan E. Peck
- Department of Emergency Medicine, St. Joseph Regional Medical Center, Mishawaka, IN 46545, USA; (E.E.P.); (M.A.); (E.C.); (D.G.)
| | - Michael Aboukhaled
- Department of Emergency Medicine, St. Joseph Regional Medical Center, Mishawaka, IN 46545, USA; (E.E.P.); (M.A.); (E.C.); (D.G.)
| | - Emily Cancel
- Department of Emergency Medicine, St. Joseph Regional Medical Center, Mishawaka, IN 46545, USA; (E.E.P.); (M.A.); (E.C.); (D.G.)
| | - Michael McDonald
- Department of Graduate Medical Education, Naval Medical Readiness and Training Command, Portsmouth, VA 23708, USA;
| | - Diego Garcia
- Department of Emergency Medicine, St. Joseph Regional Medical Center, Mishawaka, IN 46545, USA; (E.E.P.); (M.A.); (E.C.); (D.G.)
| | - John Lovejoy
- Department of Orthopaedic Surgery, University of Florida Health Jacksonville, Jacksonville, FL 32209, USA;
| | - Stephanie Lubin
- Department of Orthopaedic Surgery, Hôpital Sacré Coeur, Milot 1230, Haiti;
| | - Robert Stanton
- Department of Pediatric Orthopaedics, Nemours Children’s Health-Florida, Orlando, FL 32827, USA;
| | - Matthew E. Kutcher
- Departments of Surgery and Emergency Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA;
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Jin WY, Pang Y, Zhang XC, Peng DL, Yan ZW, Pan S, Huang CR, Guo KJ, Zheng X. Gender Differences do not Influence the Blood Coagulopathy in Patients Undergoing Total Knee Arthroplasty: A Retrospective Thromboelastography Analysis. Clin Appl Thromb Hemost 2021; 27:10760296211055716. [PMID: 34730016 PMCID: PMC8573686 DOI: 10.1177/10760296211055716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective Deep vein thrombosis (DVT) is one of the severe complications after total knee arthroplasty (TKA). Gender has been considered to influence the incidence of the thrombosis formation in TKA patients. However, it remains controversial which gender would be more prone to form thrombosis. The aim of this study was to assess the effects of gender differences on coagulation status after TKA via the thromboelastography (TEG). Methods A total of 57 male patients who underwent primary TKA from September 2015 to January 2021 were included in this study. According to the matching principle of age, body mass index (BMI), and anticoagulation treatment, 60 female patients were selected. The conventional coagulation tests, routine blood tests, and thromboelastography were conducted before the operation, 1 day and 7 days after the operation. In addition, Doppler ultrasound was also performed 1 day before the operation and at the 7 days after the operation. The parameters of conventional coagulation tests, routine blood tests, and thromboelastography were compared between the two groups. Results There were no significant differences in the blood transfusion rate, the incidence of DVT during the perioperative period, D-dimer (D-D), fibrin degradation products (FDP), hemoglobin (HB), hematocrit (HCT), prothrombin time (PT), activated partial thromboplastin time (APTT), and C-reactive protein (CRP) at any corresponding time point between the male group and the female group (P > .05). There were no significant differences in neutrophil-to-lymphocyte ratio (NLR) preoperatively; however, there were significant differences in NLR 1 day after the surgery and 7 days after the surgery between the two groups (P < .05). There were significant differences in reaction time (R) and α angle 1 day after the surgery between the two groups (P < .05), but there were no significant differences in other TEG indexes at any corresponding time point between the two groups (P > .05). Binary logistic regression analysis demonstrated that gender, age, BMI, tourniquet application time were not independent predictors (P > .05). Conclusion Gender differences have no significant influence in TKA patients with regard to conventional coagulation tests and thromboelastography.
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Affiliation(s)
- Wang-Yi Jin
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Yong Pang
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Xing-Chen Zhang
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Da-Lin Peng
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Zi-Wen Yan
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Sheng Pan
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Chao-Ran Huang
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Kai-Jin Guo
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Xin Zheng
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China.,Department of Orthopaedics, 36613Zhujiang Hospital of Southern Medical University, Guangzhou, People's Republic of China
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Tsantes AG, Papadopoulos DV, Trikoupis IG, Tsante KA, Mavrogenis AF, Koulouvaris P, Vaiopoulos AG, Piovani D, Nikolopoulos GK, Kokoris SI, Bonovas S, Papagelopoulos PJ, Tsantes AE. The Prognostic Performance of Rotational Thromboelastometry for Excessive Bleeding and Increased Transfusion Requirements in Hip Fracture Surgeries. Thromb Haemost 2021; 122:895-904. [PMID: 34719014 DOI: 10.1055/s-0041-1736617] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Hip fracture surgeries are associated with considerable blood loss, while the perioperative coagulopathy is associated with the bleeding risk of these patients. We aimed to evaluate the ability of rotational thromboelastometry (ROTEM) to detect patients at high risk for excessive bleeding and increased transfusion requirements. METHODS We conducted a prospective observational study of 221 patients who underwent hip fracture surgeries. ROTEM analysis was performed preoperatively and immediately postoperatively. Blood loss parameters including blood loss volume, number of transfused red blood cell (RBC) units, and drop in hemoglobin levels were recorded. ROTEM parameters were compared between patients with and without excessive bleeding, and between patients with and without increased transfusion requirements (i.e., ≥2 RBC units). RESULTS The postoperative FIBTEM MCF value ≤15 mm had 66.6% (95% confidence interval [CI]: 59.7-74.1%) sensitivity and 92.0% (95% CI: 80.7-97.7%) specificity to prognose excessive bleeding, and preoperative FIBTEM MCF value ≤15 mm had 80.4% (95% CI: 73.5-86.2%) sensitivity and 91.2% (95% CI: 80.7-97.0%) specificity to prognose increased transfusion requirements. Preoperative FIBTEM MCF ≤11 mm and postoperative FIBTEM MCF ≤15 mm were associated with considerably increased risks of excessive bleeding (odds ratio [OR]: 44.8, 95% CI: 16.5-121.3, p < 0.001; and OR: 23.0, 95% CI: 7.8-67.0, p < 0.001, respectively). CONCLUSION ROTEM parameters demonstrated high prognostic accuracy for excessive bleeding and increased transfusion requirements. This can enable implementation of blood sparing strategies in high-risk patients, while blood banks could be better prepared to ensure adequate blood supply.
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Affiliation(s)
- Andreas G Tsantes
- Laboratory of Haematology and Blood Bank Unit, "Attiko" Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios V Papadopoulos
- Orthopedic Specialists-UPMC, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Ioannis G Trikoupis
- First Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantina A Tsante
- Laboratory of Haematology and Blood Bank Unit, "Attiko" Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas F Mavrogenis
- First Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Koulouvaris
- First Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Aristeidis G Vaiopoulos
- Laboratory of Haematology and Blood Bank Unit, "Attiko" Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Daniele Piovani
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.,IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Georgios K Nikolopoulos
- Department of Hygiene, Epidemiology, and Medical Statistics, Medical School, University of Cyprus, Nicosia, Cyprus
| | - Styliani I Kokoris
- Laboratory of Haematology and Blood Bank Unit, "Attiko" Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Stefanos Bonovas
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.,IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Panayiotis J Papagelopoulos
- First Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Argirios E Tsantes
- Laboratory of Haematology and Blood Bank Unit, "Attiko" Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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Sayce AC, Neal MD, Leeper CM. Viscoelastic monitoring in trauma resuscitation. Transfusion 2021; 60 Suppl 6:S33-S51. [PMID: 33089933 DOI: 10.1111/trf.16074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/13/2020] [Accepted: 06/14/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Traumatic injury results in both physical and physiologic insult. Successful care of the trauma patient depends upon timely correction of both physical and biochemical injury. Trauma-induced coagulopathy is a derangement of hemostasis and thrombosis that develops rapidly and can be fatal if not corrected. Viscoelastic monitoring (VEM) assays have been developed to provide rapid, accurate, and relatively comprehensive depictions of an individual's coagulation profile. VEM are increasingly being integrated into trauma resuscitation guidelines to provide dynamic and individualized guidance to correct coagulopathy. STUDY DESIGN AND METHODS We performed a narrative review of the search terms viscoelastic, thromboelastography, thromboelastometry, TEG, ROTEM, trauma, injury, resuscitation, and coagulopathy using PubMed. Particular focus was directed to articles describing algorithms for management of traumatic coagulopathy based on VEM assay parameters. RESULTS Our search identified 16 papers with VEM-guided resuscitation strategies in adult patients based on TEG, 12 such protocols in adults based on ROTEM, 1 protocol for children based on TEG, and 2 protocols for children based on ROTEM. CONCLUSIONS This review presents evidence to support VEM use to detect traumatic coagulopathy, discusses the role of VEM in trauma resuscitation, provides a summary of proposed treatment algorithms, and discusses pending questions in the field.
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Affiliation(s)
- Andrew C Sayce
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Matthew D Neal
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Christine M Leeper
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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11
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Zhang XC, Sun MJ, Pan S, Rui M, Zhao FC, Zha GC, Pang Y, Zheng X, Guo KJ. Intravenous administration of tranexamic acid in total hip arthroplasty does not change the blood coagulopathy: a prospective thrombelastography analysis. J Orthop Surg (Hong Kong) 2021; 28:2309499020959516. [PMID: 32985369 DOI: 10.1177/2309499020959516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE Despite the wide use of tranexamic acid (TXA) in the perioperative period of total hip arthroplasty (THA), whether the hemostatic state changes after the application of intravenous (IV)-TXA are still unknown. The aim of this study was to investigate whether IV administration of TXA changes the blood coagulation following primary THA via thrombelastography (TEG) analysis and conventional laboratory tests. METHODS A total of 174 patients who underwent primary THA from September 2016 to July 2018 were selected. They were randomly divided into two groups, 86 patients with IV administration of 15 mg/kg TXA and 88 controls without TXA usage. Demographic data, TEG paremeters, d-dimer levels, fibrin degradation products, hemoglobin, hematocrit concentration, platelet, transfusion rates, perioperative blood loss, and the occurrence of deep vein thrombosis were collected. TEG and conventional laboratory tests were performed the day before operation, the first day after operation, and seventh day after operation. RESULTS There were no differences with regard to TEG or conventional laboratory tests between the two groups (p > 0.05). The total blood loss and drain blood loss in the TXA group were significantly lower than those in the control group (p < 0.05). The transfusion rates and the volume of blood transfusion of the control group were higher than those of the TXA group (p < 0.05). CONCLUSION The administration of IV-TXA resulted in a significant reduction in total blood loss, transfusion volumes, and transfusion rates without the increase of thromboembolic complications. Moreover, it was confirmed that TXA would not change the coagulation via the TEG analysis.
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Affiliation(s)
- Xing-Chen Zhang
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ma-Ji Sun
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Sheng Pan
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Min Rui
- Department of Orthopaedics, Jiangsu Jiangyin People's Hospital, Jiangyin, China
| | - Feng-Chao Zhao
- Department of Orthopaedics, 71069The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Guo-Chun Zha
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yong Pang
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xin Zheng
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Kai-Jin Guo
- Department of Orthopaedics, 117910The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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12
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Gilbert BW, Bissell BD, Santiago RD, Rech MA. Tracing the Lines: A Review of Viscoelastography for Emergency Medicine Clinicians. J Emerg Med 2020; 59:201-215. [PMID: 32418869 DOI: 10.1016/j.jemermed.2020.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 03/25/2020] [Accepted: 04/08/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Viscoelastography (VE) is an established method to identify coagulopathies in various disease processes. Clinical decisions can be made with real-time tracings and quantitative values at the bedside. Thromboelastography (TEG®) and rotational thromboelastometry (ROTEM®) have been utilized in several disease states with clinical varying success. OBJECTIVES This review will summarize the literature and provide recommendations pertaining to major disease processes where VE may be beneficial, including trauma, anticoagulation reversal, liver disease, acute ischemic stroke, and acquired brain injuries. DISCUSSION VE has a role in many emergency medicine patients encountered by clinicians. Reduced mortality, decreased blood product utilization, and prognostication ability makes VE an intriguing tool that can be utilized by providers to improve patient care. CONCLUSION This review serves as a way for emergency medicine clinicians to utilize VE in their practice and provides an insightful literature overview.
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Affiliation(s)
- Brian W Gilbert
- Department of Emergency Medicine, Wesley Medical Center, Wichita, Kansas
| | - Brittany D Bissell
- Medical Intensive Care Unit, University of Kentucky Healthcare, Lexington, Kentucky
| | - Ruben D Santiago
- Department of Emergency Medicine, Jackson Memorial Hospital, Miami, Florida
| | - Megan A Rech
- Department of Emergency Medicine, Loyola University Medical Center, Maywood, Illinois
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13
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Abstract
Evaluation of coagulation is vital in the care of the orthopaedic patients, particularly in the subspecialties of trauma, spine, arthroplasty, and revision surgery resulting from blood loss and coagulopathies. Although conventional tests (prothrombin time/international normalized ratio, activated partial thromboplastin time, platelet count, and fibrinogen) are most commonly used, others like thromboelastography (TEG) are also available to the orthopaedic surgeons. TEG is a blood test developed in the 1950s, which provides a snapshot of a patient's coagulation profile by evaluating clot formation and lysis. Recently, TEG has been used to assess traumatic coagulopathy. The coagulation parameters measured by the TEG are reaction time (R-time), time to reach a certain clot strength (K-value), speed of fibrin build up (α-angle), maximum clot amplitude, and percentage decrease of clot in 30 minutes (LY30). Using these values, traumatologists have developed a better, faster, and more accurate overview of a patient's resuscitation and more successfully direct blood product use. However, many orthopaedic surgeons-despite performing surgical procedures that risk notable blood loss and postoperative clotting complications-are unaware of the existence of the TEG blood test and the critical information it provides. Increasing awareness of the TEG among orthopaedic surgeons could have a notable effect on numerous aspects of musculoskeletal care.
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14
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The use of thromboelastography (TEG) in massively bleeding patients at Haukeland University Hospital 2008–15. Transfus Apher Sci 2019; 58:117-121. [DOI: 10.1016/j.transci.2018.12.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Blaine KP, Steurer MP. Viscoelastic Monitoring to Guide the Correction of Perioperative Coagulopathy and Massive Transfusion in Patients with Life-Threatening Hemorrhage. Anesthesiol Clin 2018; 37:51-66. [PMID: 30711233 DOI: 10.1016/j.anclin.2018.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The resuscitation of patients with traumatic hemorrhage remains a challenging clinical scenario. The appropriate and aggressive support of the patient's coagulation is of critical importance. Conventional coagulation assays present several shortcomings in this setting. The integration of viscoelastic monitoring in clinical practice has the potential to result in significant improvements. In order to be successful, the provider must understand basics of the methodology, read outs, and the limitations of the technique.
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Affiliation(s)
- Kevin P Blaine
- Department of Anesthesiology, Keck School of Medicine of the University of Southern California, 1450 San Pablo Street, HC4 Suite 3600, Los Angeles, CA 90033, USA; Trauma Anesthesiology Society, Inc, 1001 Fannin St Ste 3700, Houston, TX 77002-6785, USA.
| | - Marc P Steurer
- Trauma Anesthesiology Society, Inc, 1001 Fannin St Ste 3700, Houston, TX 77002-6785, USA; Department of Anesthesia and Perioperative Care, Zuckerberg San Francisco General Hospital and Trauma Center, UCSF School of Medicine, 1001 Potrero Avenue, Building 5, Room 3C-38, San Francisco, CA 94110, USA
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16
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Tian W, Chen WH, Jia J. Traumatic Spino-pelvic Dissociation with Bilateral Triangular Fixation. Orthop Surg 2018; 10:205-211. [PMID: 30152605 DOI: 10.1111/os.12392] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/01/2018] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE To evaluate the clinical outcomes of traumatic spino-pelvic dissociation (TSD) treated with modified bilateral triangular fixation. METHODS Eighteen consecutive patients of TSD were included in the study from March 2011 to March 2015, and the medical records of patients were reviewed retrospectively. There were 14 men and 4 women with an average age of 33.1 ± 1.4 years (range, 18-55 years). A total of 16 cases were caused by falling, and 2 cases were caused by traffic accident. All sacral fractures had associated injuries. According to the morphology of sacral fracture, U-shaped fractures were present in 10 cases, H-shaped fractures in 6 cases, and Y-shaped fractures in 2 cases. According to Roy-Camille classification, there were 12 cases of type II and 6 cases of type III. All patients received surgical treatment with modified bilateral triangular fixation, and the sacral plexus decompression was performed simultaneously on 6 cases whose scores were more than 2 according to Gibbons classification and were found having traumatic canal stenosis or sacral nerve compression detected by preoperative imaging examination. Mears' radiological evaluation criterion was applied to evaluate the reduction quality of fractures; Gibbons score was applied as the index of neurological deficiency healing, and the clinical outcome of fracture was evaluated with Majeed function assessment at last follow-up. RESULTS All patients were followed up continuously within an average of 32.4 ± 3.6 months (range, 22-48 months). All sacral fractures were healed in an average time of 11.3 ± 2.8 months (range, 8-28 months). According to the Majeed function evaluation, 12 cases were classified as excellent, 4 cases as good, and 2 cases as fair. Meanwhile, the anatomical reduction was obtained in 11 cases, satisfactory reduction in 6 cases, and unsatisfactory reduction in 1 case according to Mears' radiological evaluation criterion. The average Gibbons score changed from 2.5 ± 0.2 preoperatively to 1.4 ± 0.5 24 months postoperatively, which had a significant difference (t = 2.15, P < 0.05). CONCLUSION Modified triangular fixation combined with internal fixations shows satisfactory clinical outcomes in the treatment of TSD, which is recommended as an effective and advanced surgical choice.
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Affiliation(s)
- Wei Tian
- Department of Traumatic Orthopaedics, Tianjin Hospital, Tianjin, China
| | - Wen-Huan Chen
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jian Jia
- Department of Traumatic Orthopaedics, Tianjin Hospital, Tianjin, China
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17
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Johnson CA, Woolley JR, Snyder TA, Shankarraman V, Haney EI, Wagner WR. Assessment of Thrombelastography and Platelet Life Span in Ovines. Artif Organs 2018; 42:E427-E434. [PMID: 30252945 PMCID: PMC6309471 DOI: 10.1111/aor.13282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 04/01/2018] [Indexed: 12/19/2022]
Abstract
Ovines are a common animal model for the study of cardiovascular devices, where consideration of blood biocompatibility is an essential design criterion. In the ovine model, tools to assess blood biocompatibility are limited and continued investigation to identify and apply additional assays is merited. Toward this end, the thrombelastograph, clinically utilized to assess hemostasis, was used to characterize normal ovine parameters. In addition, platelet labeling with biotin was evaluated for its potential applicability to quantify ovine platelet life span. Mean ovine thrombelastograph values were reaction-time: 4.9 min, K-time: 2 min, angle: 64.1°, maximum amplitude: 68.6mm, actual clot strength: 11.9 kd/s, and coagulation index: 1.5. Reaction time was significantly shorter and maximum amplitude, actual clot strength, and coagulation index were all significantly higher when compared to normal human thrombelastograph values suggesting some hypercoagulability of sheep blood. Biotinylation and reinfusion of ovine platelets allowed temporal tracking of the labeled platelet cohort with flow cytometry. These data indicated a mean ovine platelet life span of 188h with a half-life of 84h. The collection of these parameters for normal ovines demonstrates the applicability of these techniques for subsequent studies where cardiovascular devices may be evaluated and provides an indication of normal ovine values for comparison purposes.
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Affiliation(s)
- Carl A. Johnson
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA
| | - Joshua R. Woolley
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA
| | | | - Venkat Shankarraman
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA
| | | | - William R. Wagner
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA
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18
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Williams DM, Hodge A, Catino J, DiMaggio C, Marshall G, Ayoung-Chee P, Frangos S, Bukur M. Correlation of thromboelastography with conventional coagulation testing in elderly trauma patients on pre-existing blood thinning medications. Am J Surg 2018. [DOI: 10.1016/j.amjsurg.2018.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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The Role of Thromboelastography Testing in the Emergency Medicine, Trauma Center, and Critical Care Environments. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2018. [DOI: 10.1007/s40138-018-0151-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Walsh M, Fritz S, Hake D, Son M, Greve S, Jbara M, Chitta S, Fritz B, Miller A, Bader MK, McCollester J, Binz S, Liew-Spilger A, Thomas S, Crepinsek A, Shariff F, Ploplis V, Castellino FJ. Targeted Thromboelastographic (TEG) Blood Component and Pharmacologic Hemostatic Therapy in Traumatic and Acquired Coagulopathy. Curr Drug Targets 2017; 17:954-70. [PMID: 26960340 PMCID: PMC5374842 DOI: 10.2174/1389450117666160310153211] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 10/13/2015] [Accepted: 12/15/2015] [Indexed: 12/17/2022]
Abstract
Trauma-induced coagulopathy (TIC) is a recently described condition which traditionally has been diagnosed by the common coagulation tests (CCTs) such as prothrombin time/international normalized ratio (PT/INR), activated partial thromboplastin time (aPTT), platelet count, and fibrinogen levels. The varying sensitivity and specificity of these CCTs have led trauma coagulation researchers and clinicians to use Viscoelastic Tests (VET) such as Thromboelastography (TEG) to provide Targeted Thromboelastographic Hemostatic and Adjunctive Therapy (TTHAT) in a goal directed fashion to those trauma patients in need of hemostatic resuscitation. This review describes the utility of VETs, in particular, TEG, to provide TTHAT in trauma and acquired non-trauma-induced coagulopathy.
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Affiliation(s)
- Mark Walsh
- Memorial Hospital of South Bend, South Bend, Indiana 46601, USA.
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21
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Umebachi R, Taira T, Wakai S, Aoki H, Otsuka H, Nakagawa Y, Inokuchi S. Measurement of blood lactate, D-dimer, and activated prothrombin time improves prediction of in-hospital mortality in adults blunt trauma. Am J Emerg Med 2017; 36:370-375. [PMID: 28869098 DOI: 10.1016/j.ajem.2017.08.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/11/2017] [Indexed: 12/27/2022] Open
Affiliation(s)
- Rimako Umebachi
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan.
| | - Takayuki Taira
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Shinjiro Wakai
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Hiromichi Aoki
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Hiroyuki Otsuka
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Yoshihide Nakagawa
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
| | - Sadaki Inokuchi
- Department of Emergency and Critical Care Medicine, Tokai University School of Medicine, Japan
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22
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Wang H, Robinson RD, Phillips JL, Ryon A, Simpson S, Ford JR, Umejiego J, Duane TM, Putty B, Zenarosa NR. Traumatic Abdominal Solid Organ Injury Patients Might Benefit From Thromboelastography-Guided Blood Component Therapy. J Clin Med Res 2017; 9:433-438. [PMID: 28392864 PMCID: PMC5380177 DOI: 10.14740/jocmr3005w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Thromboelastography (TEG) has been utilized for the guidance of blood component therapy (BCT). We aimed to investigate the association between emergent TEG-guided BCT and clinical outcomes in patients with traumatic abdominal solid organ (liver and/or spleen) injuries. METHODS A single center retrospective study of patients who sustained traumatic liver and/or spleen injuries receiving emergent BCT was conducted. TEG was ordered in all these patients. Patient demographics, general injury information, outcomes, BCT, and TEG parameters were analyzed and compared in patients receiving TEG-guided BCT versus those without. RESULTS A total of 166 patients were enrolled, of whom 52% (86/166) received TEG-guided BCT. A mortality of 12% was noted among patients with TEG-guided BCT when compared with 19% of mortality in patients with non-TEG-guided BCT (P > 0.05). An average of 4 units of packed red blood cell (PRBC) was received in patients with TEG-guided BCT when compared to an average of 9 units of PRBC received in non-TEG-guided BCT patients (P < 0.01). A longer hospital length of stay (LOS, 19 ± 16 days) was found among non-TEG-guided BCT patients when compared to the TEG-guided BCT group (14 ± 12 days, P < 0.05). TEG-guided BCT showed as an independent factor associated with hospital LOS after other variables were adjusted (coefficiency: 5.44, 95% confidence interval: 0.69 - 10.18). CONCLUSIONS Traumatic abdominal solid organ injury patients receiving blood transfusions might benefit from TEG-guided BCT as indicated by less blood products needed and less hospitalization stay among the cohort.
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Affiliation(s)
- Hao Wang
- Department of Emergency Medicine, Integrative Emergency Services Physician Group, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Richard D Robinson
- Department of Emergency Medicine, Integrative Emergency Services Physician Group, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Jessica L Phillips
- Research Institute, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Andrew Ryon
- Department of Emergency Medicine, Integrative Emergency Services Physician Group, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Scott Simpson
- Department of Emergency Medicine, Integrative Emergency Services Physician Group, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Jonathan R Ford
- Department of Emergency Medicine, Integrative Emergency Services Physician Group, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Johnbosco Umejiego
- Research Institute, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Therese M Duane
- Department of General Surgery, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Bradley Putty
- Department of General Surgery, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
| | - Nestor R Zenarosa
- Department of Emergency Medicine, Integrative Emergency Services Physician Group, John Peter Smith Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA
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Song N, Tian AX, Zhang JM, Jiang HQ, Zang JC, Ma XL. F11 rs2289252T and rs2036914C Polymorphisms Increase the Activity of Factor XI in Post-trauma Patients with Fractures Despite Thromboprophylaxis. Orthop Surg 2016; 8:377-82. [PMID: 27627722 DOI: 10.1111/os.12262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 06/08/2016] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To evaluate the association between F11 rs2289252, rs2036914 polymorphisms and the activity of clotting factor XI in post-trauma patients with fractures receiving routine anticoagulation therapy for deep venous thrombosis (DVT). METHODS A case-control study involving 110 consecutive post-trauma patients with fractures and DVT in our hospital was conducted from April 2014 to October 2015; these patients comprised a DVT group. Another 40 sex- and age-matched patients with fractures but without DVT served as controls. Additionally, 40 sex- and age-matched healthy people were chosen as a normal group. Venous blood samples (2 mL) were drawn from all participants and genomic DNA extracted from the leukocytes of the patients with fracture-related DVT, whose genotype and allele frequency distribution of F11 gene rs2089252 and rs2036914 single nucleotide polymorphism were then assessed by a sequencing method. The activity of factor XI was measured by a solidification method in all participants, including those in control and normal groups. RESULTS The activity of factor XI in patients with fracture-related DVT and F11 rs2089252 CT was 1.16 times that of those with CC genotypes (P < 0.0001), whereas in patients with fracture-related DVT and F11 rs2089252 TT genotypes it was 1.32 times that of those with CC genotypes (P < 0.0001), in patients with fracture-related DVT and F11 rs2089252 T allele it was 1.24 times that of those with C allele (P < 0.05), in patients with fracture-related DVT and F11 rs2036914 CC it was 1.35 times that of those with TT genotypes, in patients with fracture-related DVT and F11 rs2036914 CT genotypes it was 1.12 times that of those with TT genotypes (P < 0.05), and in patients with fracture-related DVT F11 and rs2036914 C allele it was 1.22 times that of those with T allele (P < 0.05). The activity of factor XI was significantly higher in the control than in the normal group (P < 0.05). CONCLUSIONS High activity of factor XI indicates a risk of occurrence of DVT in post-trauma patients with fractures. F11 rs2089252 and rs2036914 (single nucleotide polymorphisms) are associated with activity of factors XI in such patients despite prophylaxis.
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Affiliation(s)
- Nan Song
- Tianjin Huanhu Hospital, Tianjin, China.
| | - Ai-Xian Tian
- Department of Orthopaedics Institute, Tianjin Hospital, Tianjin, China
| | - Jian-Min Zhang
- Department of Orthopaedics Institute, Tianjin Hospital, Tianjin, China
| | - Hong-Qiang Jiang
- Department of Orthopaedics Institute, Tianjin Hospital, Tianjin, China
| | - Jia-Cheng Zang
- Department of Orthopaedics Institute, Tianjin Hospital, Tianjin, China
| | - Xin-Long Ma
- Department of Orthopaedics Institute, Tianjin Hospital, Tianjin, China
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24
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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.
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Affiliation(s)
- Keiji Nogami
- Department of Paediatrics, Nara Medical University, Kashihara, Nara, Japan
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Thromboelastography in Orthopaedic Trauma Acute Pelvic Fracture Resuscitation: A Descriptive Pilot Study. J Orthop Trauma 2016; 30:299-305. [PMID: 27206253 DOI: 10.1097/bot.0000000000000537] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To describe the adjunctive use of thromboelastography (TEG) in directing initial blood component therapy resuscitation of patients with polytrauma with acute pelvic/acetabular fractures. DESIGN Retrospective cohort review. SETTING Level-2 trauma center. PATIENTS Forty adult trauma activations with acute pelvic and/or acetabular fractures were treated with standard fracture care and TEG with adjuvant platelet mapping (TEG/PM) analysis to guide their initial 24-hour resuscitation. INTERVENTION TEG with PM provided goal-directed hemostatic resuscitation using component blood products and an established hospital transfusion protocol. Transfusions were triggered by abnormal TEG/PM results and/or the presence of active hemorrhage, persistent hemorrhagic shock, and abnormal base deficit levels. MAIN OUTCOME MEASUREMENT The correction of trauma-induced coagulopathy was determined by the return of a normal TEG/PM tracing. The numbers of component blood products transfused in the first 24 hours using TEG/PM were calculated. Subgroup analysis of transfusion requirements and differences between pelvic ring and acetabular fracture patterns were determined. RESULTS More than 90% of patients received a transfusion of at least 1 blood product with 84% of transfusions occurring within 6 hours of admission. TEG/PM-guided resuscitation yielded greater volumes of platelets and packed red blood cells (PRBCs) versus fresh frozen plasma (FFP) (P = 0.018) with an average transfusion ratio of 2.5:1:2.8 (PRBC:FFP:platelet). There was a trend toward greater transfusion requirements in combined injuries versus pelvic ring or acetabular fractures (P = 0.08). CONCLUSION TEG with PM is a valuable adjunct to guide the acute phase of resuscitation in patients with polytrauma with pelvic injuries because it allows a real-time assessment of the coagulation status. The routine use of TEG/PM may result in transfusion ratios of blood products different from those of the current empiric 1:1:1 guidelines. LEVEL OF EVIDENCE Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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26
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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
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