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Tischler EH, McDermott JR, Wolfert AJ, Krasnyanskiy B, Ibrahim I, Malik AN, Gross JM, Suneja N. Predictors of 30-day mortality, unplanned related readmission and reoperation among isolated closed femoral shaft fractures. J Orthop 2024; 55:91-96. [PMID: 38665991 PMCID: PMC11039340 DOI: 10.1016/j.jor.2023.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 04/28/2024] Open
Abstract
Background Isolated, closed, femoral shaft fractures are dangerous injuries that commonly occur in the setting of high energy trauma or among older patients with significant comorbidities. Despite their prevalence, relatively little data exists connecting patient independent risk factors to the time to 30-day mortality, unplanned reoperations and unplanned readmissions in these fractures. Methods Using National Surgical Quality Improvement Program (NSQIP) database, isolated close femoral shaft fractures were identified using ICD-10 codes. Patient demographics, perioperative course and adverse events were identified. Categorical and binary variables were analyzed among procedure cohorts using Chi2 analysis. Univariate and multivariate analysis were conducted to identify independent risk factors associated with primary outcomes. Results Between 2010 and 2019, 1346 closed isolated femoral shaft fracture patients with a mean age of 66.7 were identified, of whom 30.6% and 69.4% were male and female, respectively. Surgical procedures included: 915 (68.0%) intramedullary nail (IMN); 428 (31.8%) open reduction internal fixation (ORIF); and 3 (0.2%) external fixator (Ex-fix). Patients who underwent ORIF reported 3.19 (OR: 3.19; CI: 1.45-7.03; p = 0.004) and 2.12 (OR: 2.12; CI: 1.10-4.09; p = 0.024) increased odds of mortality and unplanned related readmission compared to patients who received IMN. Transfusion, DVT, and PE rates were 34.2%, 1.4%, and 1.1%, respectively. Furthermore, 50% of mortality cases occurred within 6 days of surgery. Patients requiring reintubation reported 61.8 (OR: 61.8; CI: 15.7-242.40; p < 0.001) increased odds of mortality compared to patients not requiring reintubation. Conclusion Patients with femoral shaft fractures who require reintubation have increased odds of mortality than those successfully extubated. In addition to precautions prior to extubation, patients with femoral shaft fractures should also be carefully monitored for the development of DVT or PE, and they should be definitively fixed with IMN whenever possible.
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Affiliation(s)
- Eric H. Tischler
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Jake R. McDermott
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Adam J. Wolfert
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Benjamin Krasnyanskiy
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Ishaq Ibrahim
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Aden N Malik
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Jonathan M. Gross
- Department of Orthopaedic Surgery, Staten Island University Hospital, Northwell Health, Staten Island, NY, USA
| | - Nishant Suneja
- Department of Orthopaedic Surgery and Rehabilitation Medicine, The State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA, USA
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Cong Y, Wang B, Fei C, Zhang H, Li Z, Zhu Y, Zhuang Y, Wang P, Zhang K. Dynamic observation and risk factors analysis of deep vein thrombosis after hip fracture. PLoS One 2024; 19:e0304629. [PMID: 38829867 PMCID: PMC11146713 DOI: 10.1371/journal.pone.0304629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 05/15/2024] [Indexed: 06/05/2024] Open
Abstract
OBJECTIVE To dynamically observe the occurrence of deep vein thrombosis (DVT) after a hip fracture and analyze of the risk factors affecting the dynamic alteration of DVT. METHODS Data of patients with hip fractures from January 1, 2017 to August 31, 2021 were collected. Patients were divided into DVT and non-DVT groups according to their daily Doppler ultrasonography findings. Survival analysis was used to describe dynamic changes in DVT occurrence with time. Log-rank tests were used to compare the influence of individual factors of patients with DVT occurrence, and a Cox proportional hazards regression model was used to identify the risk factors affecting the dynamic alteration of DVT occurrence. RESULTS A total of 331 patients were included: 148(44.7%) had preoperative DVT, and 143 (96.6%) had DVT in the first 3days after admission. The probability of DVT was 0.42 on Day 1, 0.11 on Day 2, 0.10 on Day 3, 0.08 on Day 4, 0.20 on Day 5, and 0.00 on Day 6-7, with a median survival time of 3.30 d. Age>70 years, intertrochanteric fracture, admission hemoglobin<130g/L, and admission hematocrit<40% had a significantly higher occurrence rate of DVT. A hematocrit level of <40% (Hazard Ratio 2.079, 95% Confidence Interval:1.148-3.764, P = 0.016) was an independent risk factor for DVT. CONCLUSION DVT after hip fractures mainly occurred in the first three days after admission, the trend was stabilized within one week, and day 1 had the highest rate of DVT incidence. Age, fracture type, HGB level, and Hct level affected dynamic occurrence of DVT. At constant other factors, Hct<40% was 2.079-fold incidence in the risk of preoperative DVT formation than those with Hct≥40% after hip fracture.
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Affiliation(s)
- Yuxuan Cong
- TCM Rehabilitation Department, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Baohui Wang
- Pain Ward of Orthopedics Department of TCM, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Chen Fei
- Department of Orthopedic Trauma, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Hong Zhang
- Department of Ultrasound, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Zhong Li
- Department of Orthopedic Trauma, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Yangjun Zhu
- Department of Orthopedic Trauma, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Yan Zhuang
- Department of Orthopedic Trauma, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Pengfei Wang
- Department of Orthopedic Trauma, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
| | - Kun Zhang
- Department of Orthopedic Trauma, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, People’s Republic of China
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Coleman JR, Gumina R, Hund T, Cohen M, Neal MD, Townsend K, Kerlin BA. Sex dimorphisms in coagulation: Implications in trauma-induced coagulopathy and trauma resuscitation. Am J Hematol 2024; 99 Suppl 1:S28-S35. [PMID: 38567625 DOI: 10.1002/ajh.27296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/17/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024]
Abstract
Trauma-induced coagulopathy (TIC) is one of the leading causes of preventable death in injured patients. Consequently, it is imperative to understand the mechanisms underlying TIC and how to mitigate this mortality. An opportunity for advancement stems from the awareness that coagulation demonstrates a strong sex-dependent effect. Females exhibit a relative hypercoagulability compared to males, which persists after injury and confers improved outcomes. The mechanisms underlying sex dimorphisms in coagulation and its protective effect after injury have yet to be elucidated. This review explores sex dimorphisms in enzymatic hemostasis, fibrinogen, platelets, and fibrinolysis, with implications for resuscitation of patients with TIC.
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Affiliation(s)
- Julia R Coleman
- Division of Trauma, Critical Care, and Burn, Department of Surgery, The Ohio State University College of Medicine, Columbus, Ohio, USA
- Division of Interventional Cardiology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Richard Gumina
- Division of Interventional Cardiology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Thomas Hund
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Mitchell Cohen
- Department of Surgery, University of Colorado Medical Center, Aurora, Colorado, USA
| | - Matthew D Neal
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Kristy Townsend
- Department of Neurosurgery, The Ohio State University, Columbus, Ohio, USA
| | - Bryce A Kerlin
- Department of Neurosurgery, The Ohio State University, Columbus, Ohio, USA
- Center for Clinical and Translational Research, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
- Division of Pediatric Hematology/Oncology/BMT, Nationwide Children's Hospital, Columbus, Ohio, USA
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4
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Lammers D, Scerbo M, Davidson A, Pommerening M, Tomasek J, Wade CE, Cardenas J, Jansen J, Miller CC, Holcomb JB. Addition of aspirin to venous thromboembolism chemoprophylaxis safely decreases venous thromboembolism rates in trauma patients. Trauma Surg Acute Care Open 2023; 8:e001140. [PMID: 37936904 PMCID: PMC10626753 DOI: 10.1136/tsaco-2023-001140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 10/03/2023] [Indexed: 11/09/2023] Open
Abstract
Background Trauma patients exhibit a multifactorial hypercoagulable state and have increased risk of venous thromboembolism (VTE). Despite early and aggressive chemoprophylaxis (CP) with various heparin compounds ("standard" CP; sCP), VTE rates remain high. In high-quality studies, aspirin has been shown to decrease VTE in postoperative elective surgical and orthopedic trauma patients. We hypothesized that inhibiting platelet function with aspirin as an adjunct to sCP would reduce the risk of VTE in trauma patients. Methods We performed a retrospective observational study of prospectively collected data from all adult patients admitted to an American College of Surgeons Level I Trauma center from January 2012 to June 2015 to evaluate the addition of aspirin (sCP+A) to sCP regimens for VTE mitigation. Cox proportional hazard models were used to assess the potential benefit of adjunctive aspirin for symptomatic VTE incidence. Results 10,532 patients, median age 44 (IQR 28 to 62), 68% male, 89% blunt mechanism of injury, with a median Injury Severity Score (ISS) of 12 (IQR 9 to 19), were included in the study. 8646 (82%) of patients received only sCP, whereas 1886 (18%) patients received sCP+A. The sCP+A cohort displayed a higher median ISS compared with sCP (13 vs 11; p<0.01). The overall median time of sCP initiation was hospital day 1 (IQR 0.8 to 2) and the median day for aspirin initiation was hospital day 3 (IQR 1 to 6) for the sCP+A cohort. 353 patients (3.4%) developed symptomatic VTE. Aspirin administration was independently associated with a decreased relative hazard of VTE (HR 0.57; 95% CI 0.36 to 0.88; p=0.01). There were no increased bleeding or wound complications associated with sCP+A (point estimate 1.23, 95% CI 0.68 to 2.2, p=0.50). Conclusion In this large trauma cohort, adjunctive aspirin was independently associated with a significant reduction in VTE and may represent a potential strategy to safely mitigate VTE risk in trauma patients. Further prospective studies evaluating the addition of aspirin to heparinoid-based VTE chemoprophylaxis regimens should be sought. Level of evidence Level III/therapeutic.
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Affiliation(s)
- Daniel Lammers
- Division of Trauma and Acute Care Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Michelle Scerbo
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - Annamaria Davidson
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - Matthew Pommerening
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - Jeffrey Tomasek
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - Charles E Wade
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - Jessica Cardenas
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - Jan Jansen
- Division of Trauma and Acute Care Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Charles C Miller
- Surgery/Center for Injury Research, The University of Texas Health Science Center McGovern School of Medicine, Houston, Texas, USA
| | - John B Holcomb
- Division of Trauma and Acute Care Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Papa L, Maguire L, Thundiyil JG, Ladde JG, Miller SA. Age and sex differences in blood product transfusions and mortality in trauma patients at a level I trauma center. Heliyon 2023; 9:e18890. [PMID: 37583761 PMCID: PMC10424079 DOI: 10.1016/j.heliyon.2023.e18890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 07/29/2023] [Accepted: 08/02/2023] [Indexed: 08/17/2023] Open
Abstract
Objectives Hemorrhage is a common complication of trauma. We evaluated age and sex differences in treatment with blood product transfusions and massive transfusions as well as in-hospital mortality following trauma at a Level 1 Trauma Center. Methods This cross-sectional study evaluated trauma data from a Level 1 trauma center registry from January 2013 to December 2017. The primary outcome was amount of blood products (packed red blood cells (PRBCs), plasma, platelets), and massive transfusion (MT) by biological sex and by age group: 16-24 (youth), 25-59 (middle age), and >=60 (older age) The secondary outcome was in-hospital mortality to hospital discharge. Results There were 13596 trauma patients in the registry, mean age was 48 years, 4589 (34%) female and 9007 (66%) male, and median ISS of 9. Male patients received significantly more PRBC transfusions than female patients within 4-hours 6.6% vs 4.4%, and 24-hours 6.7% vs 4.5% respectively. Older patients received significantly fewer PRBC transfusions within 4-hours and 24-hours than their younger counterparts, with 6.9% in the youth group, 6.8% in the middle age group, and 3.9% in the older group (p<0.001). When adjusted for injury severity, the odds of receiving a blood transfusion within 4 hours of injury was significantly lower in older females. Using multivariate analysis, predictors of mortality included (in order of significance) injury severity, older age, transfusion within 4 hours of injury, penetrating trauma, and male sex. Conclusion In this large trauma cohort, older female trauma patients were less likely to receive blood products compared to younger females and to their older male counterparts, even after adjusting for injury severity. Predictors of mortality included injury severity, older age, early transfusion, penetrating trauma, and male sex. Following trauma, older women appear vulnerable to undertreatment. Further study is needed to determine the reasons for these differences and their impact on patient outcomes.
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Affiliation(s)
- Linda Papa
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, FL, USA
| | - Lindsay Maguire
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, FL, USA
| | - Josef G. Thundiyil
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, FL, USA
| | - Jay G. Ladde
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, FL, USA
| | - Susan A. Miller
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, FL, USA
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DeBot M, Erickson C, Kelher M, Schaid TR, Moore EE, Sauaia A, Cralley A, LaCroix I, D’Alessandro A, Hansen K, Cohen MJ, Silliman CC, Coleman J. Platelet and cryoprecipitate transfusions from female donors improve coagulopathy in vitro. J Trauma Acute Care Surg 2023; 94:497-503. [PMID: 36728345 PMCID: PMC10038850 DOI: 10.1097/ta.0000000000003857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Females are relatively hypercoagulable compared with males, with increased platelet aggregation and improved clot dynamics. However, sex differences in coagulation have not yet been considered in transfusion guidelines. Therefore, our objective was to evaluate hemostatic differences in sex concordant and sex discordant cryoprecipitate and platelet transfusions. We hypothesized that transfusion of blood products from female donors results in improved coagulopathy compared with male blood products. METHODS This was a cohort study evaluating sex dimorphisms in coagulation assays and clotting factors in healthy volunteer plasma and cryoprecipitate. Sex dimorphisms in transfusions were evaluated using an in vitro coagulopathy model. Female or male platelets or single-donor cryoprecipitate was added to "recipient" whole blood after dilution of recipient blood with citrated saline to provoke a coagulopathic profile. Citrated native thromboelastography was then performed. Liquid chromatography/mass spectroscopy was performed on single-donor cryoprecipitate to evaluate sex dimorphisms in the proteome of cryoprecipitate. RESULTS Females have an increased proportion of functional fibrinogen. Transfusion of female-donor platelets and cryoprecipitate induces a larger decrease in R time and greater increase in angle than male-donor platelets or cryoprecipitate. Female-donor cryoprecipitate has increased factor V and factor XIII compared with male cryoprecipitate, and comprehensive proteomics revealed sex differences in several proteins with potential immunological significance. CONCLUSION Platelets and cryoprecipitate from female donors improve coagulopathy more than male blood products in vitro. Increased factor V and factor XIII activity as well as increased fibrinogen activity in female donors appears to drive this disparity. Sex differences in the proteome of cryoprecipitate may influence how transfusions modulate the thromboinflammation of trauma. The differing hemostatic profiles of female and male blood products suggest the potential role of sex-specific transfusions guidelines in hemostatic resuscitation.
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Affiliation(s)
- Margot DeBot
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
| | - Christopher Erickson
- University of Colorado, School of Medicine, Department of Biochemistry and Molecular Genetics, Aurora, CO
| | - Marguerite Kelher
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
- Vitalant Research Institute, Vitalent Mountain Division, Denver, CO
| | - Terry R. Schaid
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
| | - Ernest E. Moore
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
- Denver Health Medical Center, Ernest E Moore Shock Trauma Center, Denver, CO
| | - Angela Sauaia
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
- University of Colorado, School of Public Health, Management and Policy, Department of Health Systems, Aurora, CO
| | - Alexis Cralley
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
| | - Ian LaCroix
- University of Colorado, School of Medicine, Department of Biochemistry and Molecular Genetics, Aurora, CO
| | - Angelo D’Alessandro
- University of Colorado, School of Medicine, Department of Biochemistry and Molecular Genetics, Aurora, CO
| | - Kirk Hansen
- University of Colorado, School of Medicine, Department of Biochemistry and Molecular Genetics, Aurora, CO
| | - Mitchell J. Cohen
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
| | - Christopher C. Silliman
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
- Vitalant Research Institute, Vitalent Mountain Division, Denver, CO
| | - Julia Coleman
- University of Colorado, School of Medicine, Department of Surgery/Trauma Research Center, Aurora, CO
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Tsuchida T, Wada T, Nakae R, Fujiki Y, Kanaya T, Takayama Y, Suzuki G, Naoe Y, Yokobori S. Gender-related differences in the coagulofibrinolytic responses and long-term outcomes in patients with isolated traumatic brain injury: A 2-center retrospective study. Medicine (Baltimore) 2023; 102:e32850. [PMID: 36820585 PMCID: PMC9907995 DOI: 10.1097/md.0000000000032850] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
Coagulation function differs by gender, with women being characterized as more hypercoagulable. Even in the early stages of trauma, women have been shown to be hypercoagulable. Several studies have also examined the relationship between gender and the prognosis of trauma patients, but no certain conclusions have been reached. Patients with isolated traumatic brain injury (iTBI) are known to have coagulopathy, but no previous studies have examined the gender differences in detail. This is a retrospective analysis of a prospective registry conducted at 2 centers. The study included adult patients with iTBI enrolled from April 2018 to March 2021. Coagulofibrinolytic markers were measured in each patient at 1 hour, 24 hours, 3 days, and 7 days after injury, and neurological outcomes were assessed with the Glasgow Outcome Scale Extended at 6 months. Subgroup analysis was also performed by categorizing patients into groups according to neurological prognosis or age at 50 years. Males (n = 31) and females (n = 21) were included in the analysis. In males, there was a significant difference in the levels of activated partial thromboplastin time (P = .007), fibrin/fibrinogen degradation products (P = .025), D-dimer (P = .034), α2-plasmin inhibitor (P = .030), plasmin-α2-plasmin inhibitor complex (P = .004) at 1 hour after injury between favorable and unfavorable long-term neurological outcome groups, while in females there was no significant difference in these markers between 2 groups. In the age group under 50 years, there were significant gender differences in fibrinogen (day 3: P = .018), fibrin/fibrinogen degradation products (1 hour: P = .037, day 3: P = .009, day 7: P = .037), D-dimer (day 3: P = .005, day 7: P = .010), plasminogen (day 3: P = .032, day 7: P = .032), and plasmin-α2-plasmin inhibitor complex (day 3: P = .001, day 7: P = .001), and these differences were not evident in the age group over 50 years. There were differences in coagulofibrinolytic markers depending on gender in patients with iTBI. In male patients, aggravation of coagulofibrinolytic markers immediately after traumatic brain injury may be associated with poor neurologic outcome 6 months after injury.
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Affiliation(s)
- Takumi Tsuchida
- Division of Acute and Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Takeshi Wada
- Division of Acute and Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
- * Correspondence: Takeshi Wada, Division of Acute and Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Faculty of Medicine, Hokkaido University, N15W7 Kita-ku, Sapporo 060-8638, Japan (e-mail: )
| | - Ryuta Nakae
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
| | - Yu Fujiki
- Emergency and Critical Care Center, Kawaguchi Municipal Medical Center, Saitama, Japan
| | - Takahiro Kanaya
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
| | - Yasuhiro Takayama
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
| | - Go Suzuki
- Emergency and Critical Care Center, Kawaguchi Municipal Medical Center, Saitama, Japan
| | - Yasutaka Naoe
- Emergency and Critical Care Center, Kawaguchi Municipal Medical Center, Saitama, Japan
| | - Shoji Yokobori
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
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Liu B, Yang C, Deng Y, Duan Z, Wang K, Li J, Ding W. Persistent fibrinolysis shutdown is associated with increased mortality in traumatic pancreatic injury. Injury 2023; 54:1265-1270. [PMID: 36774266 DOI: 10.1016/j.injury.2023.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 01/16/2023] [Accepted: 02/05/2023] [Indexed: 02/13/2023]
Abstract
PURPOSE The features of fibrinolytic system modifications and their relationship with prognosis are still unknown in traumatic pancreatic injury. The object of this prospective cohort research was to identify fibrinolytic characteristics in patients with pancreatic trauma and to identify the correlation to mortality. METHOD A prospective screening of traumatic pancreatic injury patients was done for five years. The fibrinolytic status of patients was determined by thromboelastography (TEG). The percentage reduction in clot strength 30 min (LY30) after the time of maximal clot strength was utilized to distinguish the fibrinolytic phenotype of individuals, including fibrinolytic shutdown (SD), physiologic fibrinolysis (PHYS) and hyperfibrinolysis (HF). Two cohorts, transient fibrinolytic shutdown (TSD) and persistent fibrinolytic shutdown (PSD), were divided according to whether fibrinolytic shutdown persisted within one week. Demographics, injury severity, characteristics of pancreatic injury, treatment, and outcomes were compared. RESULT A total of 180 cases enrolled, aged 42(interquartile range 32-51) years, 88% males, 97% were blunt trauma. The median ISS was 19(IQR 10-25), and 76% were AAST grade III to V (high-grade). At admission, there were 159 cases of SD (88%), 15 cases of PHYS (8%) while 6 cases of HF (3%). Of these, the TSD cohort included 54 patients (34%), while the PSD cohort included 105 patients (66%). Compared with the TSD cohort, the PSD cohort had more severe injury (ISS 21[IQR 12-27] vs 16[IQR 9-22], p = 0.006) and a higher proportion of AAST high-grade (83% vs 67%, p = 0.035). Persistent fibrinolytic shutdown was associated with operative treatment (odds ratio [OR] 3.111; 95%CI 1.146-8.447; p = 0.026), associated intra-abdominal injury (OR 8.331; 95% CI 1.301-53.336; p = 0.025) and admission LY30 (OR 0.016; 95% CI 0.002 - 0.120; p < 0.001). It was an independent predictor of mortality (adjusted odds ratio [AOR] 4.674; 95% CI 1.03 to 21.14; p = 0.045). CONCLUSION Fibrinolytic shutdown especially persistence of this phenotype is more common in traumatic pancreatic injury than PHYS and HF, which related with mortality. Risk factors including LY30 at admission, intra-abdominal injury and operative treatment were associated with the persistent fibrinolytic shutdown. Sheltered the patients from these risk factors seems to be beneficial, which need to be confirmed by further large-scale studies.
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Affiliation(s)
- Baochen Liu
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chao Yang
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yunxuan Deng
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zehua Duan
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Kai Wang
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jieshou Li
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
| | - Weiwei Ding
- Division of Trauma and Surgical Intensive Care Unit, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
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Anteby R, Allar BG, Broekhuis JM, Patel PB, Marcaccio CL, Papageorge MV, Papatheodorou S, Mendoza AE. Thromboprophylaxis Timing After Blunt Solid Organ Injury: A Systematic Review and Meta-analysis. J Surg Res 2023; 282:270-279. [PMID: 36332306 DOI: 10.1016/j.jss.2022.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 07/29/2022] [Accepted: 10/08/2022] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Trauma patients with blunt abdominal solid organ injuries are at high risk for venous thromboembolism (VTE), but the optimal time to safely administer chemical thromboprophylaxis is controversial, especially for patients who are managed nonoperatively due to increased risk of hemorrhage. We sought to compare failure of nonoperative management (NOM) and VTE events based on timing of chemical thromboprophylaxis initiation. METHODS A systematic review was conducted in PubMed and Embase databases. Studies were included if they evaluated timing of initiation of chemical thromboprophylaxis in trauma patients who underwent NOM of blunt solid organ injuries. Outcomes included failure of NOM and incidence of VTE. A random-effects meta-analysis was performed comparing patients who received late (>48 h) versus early thromboprophylaxis initiation. RESULTS Twelve retrospective cohort studies, comprising 21,909 patients, were included. Three studies, including 6375 patients, provided data on adjusted outcomes. Pooled adjusted analysis demonstrated no difference in failure of NOM in patients receiving late versus early thromboprophylaxis (odds ratio [OR] 0.92, 95% confidence interval [CI]:0.4-2.14). When including all unadjusted studies, even those at high risk of bias, there remained no difference in failure of NOM (OR 1.16, 95% CI:0.72-1.86). In the adjusted analysis for VTE events, which had 6259 patients between two studies, patients receiving late chemical thromboprophylaxis had a higher risk of VTE compared with those who received early thromboprophylaxis (OR 1.89, 95% CI:1.15-3.12). CONCLUSIONS Based on current observational evidence, initiation of prophylaxis before 48 h is associated with lower VTE rates without higher risk of failure of NOM.
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Affiliation(s)
- Roi Anteby
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of General Surgery, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Benjamin G Allar
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
| | - Jordan M Broekhuis
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Priya B Patel
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of General Surgery, Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Christina L Marcaccio
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Marianna V Papageorge
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts; Department of Surgery, Yale School of Medicine, New Haven, Connecticut
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - April E Mendoza
- Department of Surgery, University of California San Francisco - East Bay, Oakland, California
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10
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Gurunathan U, Chiang L, Hines J, Pearse B, McKenzie S, Hay K, Mullany D, Nandurkar H, Eley V. Association Between Thromboelastometry Identified Hypercoagulability and Thromboembolic Complications After Arthroplasty: A Prospective Observational Study in Patients With Obesity. Clin Appl Thromb Hemost 2023; 29:10760296231199737. [PMID: 37814542 PMCID: PMC10566273 DOI: 10.1177/10760296231199737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/09/2023] [Accepted: 08/22/2023] [Indexed: 10/11/2023] Open
Abstract
The prothrombotic state of obesity can increase the risk of thromboembolism. We aimed to investigate if there was an association between baseline hypercoagulable rotational thromboelastometry (ROTEM) profile and thromboembolic complications in arthroplasty patients with obesity. Patients with a body mass index ≥ 25 kg/m2 and/or waist circumference ≥94 cm (M) and 80 cm (F) undergoing hip and knee arthroplasty had pre- and postoperative ROTEM. ROTEM values were compared by outcome status using an independent sample equal-variance t-test. Of the 303 total participants, hypercoagulability defined as extrinsically activated thromboelastometry maximum clot firmness G score ≥ 11 K dyne/cm2, was observed in 90 (30%) of the 300 participants with preoperative ROTEM assays. Clinically significant thromboembolic complications occurred in 5 (1.7%) study participants before discharge and in 10 (3.3%) by 90 days. These included 6 with pulmonary emboli, 3 with deep venous thrombus, and 1 with myocardial infarction. We found no evidence for an association between baseline hypercoagulability and incident thromboembolic events, analysis limited by the number of events. Postoperative decrease in platelets and an increase in fibrinogen were observed. ROTEM parameter changes differed across obesity categories.
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Affiliation(s)
- Usha Gurunathan
- Department of Anaesthesia and Perfusion Services, The Prince Charles Hospital, Brisbane, QLD, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Lily Chiang
- Department of Anaesthesia and Perfusion Services, The Prince Charles Hospital, Brisbane, QLD, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Joel Hines
- Adult Intensive Care Unit, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Bronwyn Pearse
- Blood Management Unit, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Scott McKenzie
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Department of Cardiology, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Karen Hay
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Daniel Mullany
- Department of Anaesthesia and Perfusion Services, The Prince Charles Hospital, Brisbane, QLD, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Harshal Nandurkar
- Department of Haematology, Alfred Health, Melbourne, VIC, Australia
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Victoria Eley
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Department of Anaesthesia and Perioperative Medicine, The Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
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11
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Thivaharan Y, Dayapala A, Thanushan M. A case of early pulmonary embolism following blunt trauma to chest and a long bone fracture: a case report. EGYPTIAN JOURNAL OF FORENSIC SCIENCES 2023; 13:9. [PMID: 36712698 PMCID: PMC9869291 DOI: 10.1186/s41935-023-00327-4] [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: 09/23/2022] [Accepted: 01/10/2023] [Indexed: 01/24/2023] Open
Abstract
Background After substantial trauma, pulmonary embolism (PE) carries a high risk of morbidity and mortality. Early post-traumatic PE in the absence of deep vein thrombosis (DVT) is a distinct entity that might be connected to rare mechanisms or unidentified biochemical processes. Case presentation A driver of a car was presented with worsening chest pain and shortness of breath (SOB) following a road traffic accident in which he suffered an impact on the chest against the steering wheel and a closed fracture of the right femur. Radiological investigations revealed a pulmonary embolism in the left posterior segment pulmonary artery, without evidence of internal chest injuries or DVT within 12 h from the incident. D-dimer, troponin I, and creatinine kinase were elevated without evidence of myocardial infarction or myocardial injury. Other parameters were within the normal range. Conclusions Possibilities of early PE in the absence of detectable DVT could be due to hyper-coagulability states, clots from the lower extremity completely getting detached and embolizing to the pulmonary circulation, screening errors, and "de novo" thrombi in the pulmonary circulation. Chest trauma is an identified risk factor for early or late pulmonary embolism. Action of the post-traumatic adrenergic response causing vascular endothelial inflammation and the synthesis of circulating adhesion molecules leading to localized thrombosis have also been suggested as causes for this phenomenon. A greater understanding of rare risk factors for early PE and the possibility of rare complications of chest trauma is useful in detecting and treating them in time, reducing morbidity and mortality.
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Affiliation(s)
- Yalini Thivaharan
- grid.512965.c0000 0004 0635 2736Colombo South Teaching Hospital, Kalubowila, Sri Lanka
| | - Asurappulige Dayapala
- grid.512965.c0000 0004 0635 2736Colombo South Teaching Hospital, Kalubowila, Sri Lanka
| | - Muthulingam Thanushan
- Department of Forensic Medicine, Faculty of Medicine, University of Sri Jayawardhanapura, Sri Jayawardhanapura, Sri Lanka
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12
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Carr B, Li SW, Hill JG, Feizpour C, Zarzaur BL, Savage S. Empiric tranexamic acid use provides no benefit in urgent orthopedic surgery following injury. Trauma Surg Acute Care Open 2023; 8:e001054. [PMID: 36919025 PMCID: PMC10008410 DOI: 10.1136/tsaco-2022-001054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/11/2023] [Indexed: 03/12/2023] Open
Abstract
Background Orthopedic literature has demonstrated a significant decrease in postoperative transfusion requirements when tranexamic acid (TXA) was given during elective joint arthroplasty. The purpose of this study was to evaluate the empiric use of TXA in semi-urgent orthopedic procedures following injury. We hypothesized that TXA would be associated with increased rates of venous thromboembolic events (VTE) and have no effect on transfusion requirements. Methods Patients who empirically received TXA during a semi-urgent orthopedic surgery following injury (TXA+) were matched using propensity scoring to historical controls (CONTROL) who did not receive TXA. Outcomes included VTE within 6 months of injury and packed red blood cell utilization. Multivariable logistic regression and generalized linear modeling were used to determine odds of VTE and transfusion. Results 200 patients were included in each group. There was no difference in mortality between groups. TXA+ patients did not have an increase in VTE events (OR 0.680, 95% CI 0.206 to 2.248). TXA+ patients had a significantly higher odds of being transfused during their hospital stay (OR 2.175, 95% CI 1.246 to 3.797) and during the index surgery (increased 0.95 units (SD 0.16), p<0.0001). Overall transfusion was also significantly higher in the TXA+ group (p=0.0021). Conclusion Empiric use of TXA in semi-urgent orthopedic surgeries did not increase the odds of VTE. Despite the elective literature, TXA administration did not associate with less transfusion requirements. A properly powered, prospective, randomized trial should be designed to elucidate the risks and benefits associated with TXA use in this setting. Level of evidence Level IV.
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Affiliation(s)
- Bryan Carr
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Shi-Wen Li
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jamel G Hill
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Cyrus Feizpour
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Ben L Zarzaur
- Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Stephanie Savage
- Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
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13
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Meizoso JP, Barrett CD, Moore EE, Moore HB. Advances in the Management of Coagulopathy in Trauma: The Role of Viscoelastic Hemostatic Assays across All Phases of Trauma Care. Semin Thromb Hemost 2022; 48:796-807. [DOI: 10.1055/s-0042-1756305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AbstractUncontrolled bleeding is the leading cause of preventable death following injury. Trauma-induced coagulopathy can manifest as diverse phenotypes ranging from hypocoagulability to hypercoagulability, which can change quickly during the acute phase of trauma care. The major advances in understanding coagulation over the past 25 years have resulted from the cell-based concept, emphasizing the key role of platelets and their interaction with the damaged endothelium. Consequently, conventional plasma-based coagulation testing is not accurate in predicting bleeding and does not provide an assessment of which blood products are indicated. Viscoelastic hemostatic assays (VHA), conducted in whole blood, have emerged as a superior method to guide goal-directed transfusion. The major change in resuscitation has been the shift from unbridled crystalloid loading to judicious balanced blood product administration. Furthermore, the recognition of the rapid changes from hypocoagulability to hypercoagulability has underscored the importance of ongoing surveillance beyond emergent surgery. While the benefits of VHA testing are maximized when used as early as possible, current technology limits use in the pre-hospital setting and the time to results compromises its utility in the emergency department. Thus, most of the reported experience with VHA in trauma is in the operating room and intensive care unit, where there is compelling data to support its value. This overview will address the current and potential role of VHA in the seriously injured patient, throughout the continuum of trauma management.
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Affiliation(s)
- Jonathan P. Meizoso
- DeWitt Daughtry Family Department of Surgery, Ryder Trauma Center, University of Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, Florida
| | - Christopher D. Barrett
- Center for Precision Cancer Medicine, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts
- Department of Surgery, Boston University Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | - Ernest E. Moore
- Department of Surgery, University of Colorado Denver, Aurora, Colorado
- Department of Surgery, Ernest E. Moore Shock Trauma Center at Denver Health, Denver, Colorado
| | - Hunter B. Moore
- Department of Surgery, University of Colorado Denver, Aurora, Colorado
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14
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Favors LE, Harrell KN, Miles MVP, Everett H, Rippy M, Maxwell R. Analysis of Admission Thromboelastogram Profiles in 1369 Male and Female Trauma Patients. J Surg Res 2022; 280:551-556. [PMID: 36096020 DOI: 10.1016/j.jss.2022.07.048] [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: 03/01/2022] [Revised: 06/13/2022] [Accepted: 07/28/2022] [Indexed: 10/14/2022]
Abstract
INTRODUCTION Recent studies have demonstrated a hypercoagulable thromboelastrogram (TEG) in female trauma patients compared with males, conferring a possible survival advantage. We hypothesized that TEG profiles would reveal a relative hypercoagulable state in female compared with male trauma patients. METHODS A prospective review was conducted on all adult trauma patients admitted to the trauma service at an American College of Surgeons-verified level I trauma center from December 2019 to June 2021 who, per our institutional protocol, received a thrombelastotgraphy on their initial arrival to the trauma center if classified as a level I or II trauma activation. The thromboelastography values of male and female trauma patients were compared as the primary outcome variables of interest. The secondary outcomes investigated were hospital length of stay, surgical interventions, and ventilatory requirement. RESULTS A total of 1369 patients met inclusion criteria, with 878 (64.1%) male and 491 (35.9%) female. Female patients had a higher median alpha angle (74.8 versus 72.6°, P < 0.001), maximum amplitude (69.3 versus 66.2 mm, P < 0.001), and shorter median K time (1.0 versus 1.2 s, P < 0.001). Female patients had a shorter hospital length of stay (4 versus 5 d, P < 0.001), had a lower rate of surgical intervention (14.6% versus 25.5%, P < 0.001), and had lower rates of mechanical ventilation (19.3% versus 39.5%, P < 0.001). CONCLUSIONS Female trauma patients were found to have hypercoagulable indices on TEG at the time of initial trauma evaluation compared with males. Intrinsic differences in sex coagulation profiles should be further investigated to optimize modern resuscitation strategies.
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Affiliation(s)
- Lauren E Favors
- Department of Surgery, University of Tennessee College of Medicine Chattanooga, Chattanooga, Tennessee.
| | - Kevin N Harrell
- Department of Surgery, University of Tennessee College of Medicine Chattanooga, Chattanooga, Tennessee
| | - M Victoria P Miles
- Department of Surgery, University of Tennessee College of Medicine Chattanooga, Chattanooga, Tennessee
| | - Hayley Everett
- Department of Surgery, University of Tennessee College of Medicine Chattanooga, Chattanooga, Tennessee
| | - Meredith Rippy
- University of Tennessee Chattanooga, Chattanooga, Tennessee
| | - Robert Maxwell
- Department of Surgery, University of Tennessee College of Medicine Chattanooga, Chattanooga, Tennessee
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15
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Hynes AM, Scantling DR, Murali S, Bormann BC, Paul JS, Reilly PM, Seamon MJ, Martin ND. What happens after they survive? The role of anticoagulants and antiplatelets in IVC injuries. Trauma Surg Acute Care Open 2022; 7:e000923. [PMID: 35813557 PMCID: PMC9214426 DOI: 10.1136/tsaco-2022-000923] [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: 03/15/2022] [Accepted: 05/20/2022] [Indexed: 11/07/2022] Open
Abstract
Background Venous thromboembolism (VTE) after an inferior vena cava (IVC) injury is a devastating complication. Current practice involves variable use of anticoagulation and antiplatelet (AC/AP) agents. We hypothesized that AC/AP can reduce the incidence of VTE and that delayed institution of AC/AP is associated with increased VTE events. Methods We retrospectively reviewed IVC injuries cared for at a large urban adult academic level 1 trauma center between January 1, 2008 and December 31, 2020, surviving 72 hours. Patient demographics, injury mechanism, surgical repair, type and timing of AC, and type and timing of VTE events were characterized. Postoperative AC status during hospital course before an acute VTE event was delineated by grouping patients into four categories: full, prophylactic, prophylactic with concomitant AP, and none. The primary outcome was the incidence of an acute VTE event. IVC ligation was excluded from analysis. Results Of the 76 patients sustaining an IVC injury, 26 were included. The incidence of a new deep vein thrombosis distal to the IVC injury and a new pulmonary embolism was 31% and 15%, respectively. The median onset of VTE was 5 days (IQR 1–11). Four received full AC, 10 received prophylactic AC with concomitant AP, 8 received prophylactic AC, and 4 received no AC/AP. New VTE events occurred in 0.0% of full, in 30.0% of prophylactic with concomitant AP, in 50.0% of prophylactic, and in 50.0% without AC/AP. There was no difference in baseline demographics, injury mechanisms, surgical interventions, and bleeding complications. Discussion This is the first study to suggest that delay and degree of antithrombotic initiation in an IVC-injured patient may be associated with an increase in VTE events. Consideration of therapy initiation should be performed on hemostatic stabilization. Future studies are necessary to characterize the optimal dosing and temporal timing of these therapies. Level of evidence Therapeutic, level 3.
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Affiliation(s)
- Allyson M Hynes
- Emergency Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
- Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Dane R Scantling
- Surgery, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Shyam Murali
- Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Jasmeet S Paul
- Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Patrick M Reilly
- Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mark J Seamon
- Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Niels D Martin
- Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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16
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Rodgers SC, Carter KT, Patki D, O'Brien RC, Kutcher ME. Thromboelastography-Based Evaluation of Gender-Associated Hypercoagulability. Am Surg 2022; 88:2619-2625. [PMID: 35576492 DOI: 10.1177/00031348221087905] [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: 11/17/2022]
Abstract
BACKGROUND Age, race, and gender differences in coagulation status of healthy volunteers have been reported in previous case series; however, rigorous multivariate analysis adjusting for these factors is lacking. We aimed to investigate the effects of age, race, and gender on baseline coagulation status in healthy volunteers. METHODS Thirty healthy volunteer controls with no history of bleeding or thrombotic events and no previous anticoagulant or antiplatelet use were recruited. Citrated and heparinized blood samples were drawn, and kaolin and platelet-mapping thromboelastography (TEG) assays performed. RESULTS Thirty participants had a mean age of 37, mean body mass index of 29 kg/m2, and were 47% African-American and 70% female. Women were significantly older than men (40 ± 11 y vs 28 ± 7 y, P = .002); there were no significant differences in demographics by race. Multivariate analysis of variance for the effect of age, race, and gender across TEG parameters yielded evidence for gender differences in hypercoagulability (Pillai's trace P = .02), which appear to be driven by differences in K-time, alpha angle, maximal amplitude, and G parameter. Women were hypercoagulable compared to men, as manifested by shorter K-time, steeper alpha angle, higher maximal amplitude, and larger G parameter. DISCUSSION Women at baseline have relatively hypercoagulable fibrin deposition kinetics, platelet contributions to clot formation, and overall clot strength compared to men, even when adjusted for age and race. Additional research is needed to specifically detail the key patient-level factors, clinical implications, and opportunities for tailored therapy related to gender-associated hypercoagulability.
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Affiliation(s)
- Skylar C Rodgers
- Department of Surgery, 21693University of Mississippi Medical Center, Jackson, MS, USA
| | - Kristen T Carter
- Department of Surgery, 21693University of Mississippi Medical Center, Jackson, MS, USA
| | - Deepti Patki
- Department of Surgery, 21693University of Mississippi Medical Center, Jackson, MS, USA
| | - Robert C O'Brien
- Department of Surgery, 21693University of Mississippi Medical Center, Jackson, MS, USA
| | - Matthew E Kutcher
- Department of Surgery, 21693University of Mississippi Medical Center, Jackson, MS, USA
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17
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Kalkwarf KJ, Cardenas JC, Wade CE, Cotton BA. Green Plasma has a Superior Hemostatic Profile Compared With Standard Color Plasma. Am Surg 2022; 88:1970-1975. [PMID: 35476552 DOI: 10.1177/00031348221096571] [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: 11/15/2022]
Abstract
BACKGROUND Limitations in available donors have dramatically reduced plasma availability over the past several decades, concurrent with increasing demand for some types of plasma. Plasma from female donors who are pregnant or taking oral contraceptives often has a green appearance, which frequently results in these units being discarded. This pilot study aimed to evaluate the hemostatic potential of green compared to standard-color plasma. MATERIALS AND METHODS Plasma from twelve blood group-matched female and twelve male donors was obtained from the local blood center. Six of the female and all of the male units of plasma had a normal appearance (STANDARD), while six of the female units were grossly green (GREEN). The hemostatic potential was evaluated by thrombelastography (TEG), calibrated automated thrombogram (CAT), and coagulation factor level measurements. Univariate analysis was performed using Wilcoxon Rank-Sum. RESULTS GREEN plasma was more procoagulant for all TEG values (r-value, k-time, angle, mA) when compared to STANDARD plasma. Differences were also observed in coagulation factor levels, with GREEN plasma having higher than STANDARD (factors II; VII, IX; X, XI, Protein S, and plasminogen); conversely, GREEN plasma had a longer lag time in CAT. DISCUSSION This pilot study demonstrates that female donors with green plasma have a superior hemostatic profile than standard plasma. GREEN plasma should be further investigated for its safety profile and hemostatic potential, so if it is found to be a safe and functionally non-inferior product, it should be actively re-introduced for transfusion in bleeding patients.
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Affiliation(s)
- Kyle J Kalkwarf
- Division of Trauma and Acute Care Surgery, Department of Surgery, 12215University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jessica C Cardenas
- Center for Translational Injury Research, 12340University of Texas Health Science Center, Houston, TX, USA
| | - Charles E Wade
- Center for Translational Injury Research, 12340University of Texas Health Science Center, Houston, TX, USA
| | - Bryan A Cotton
- Department of Surgery, 12340University of Texas Health Science Center, Houston, TX, USA
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18
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Yang W, Wang H, Wei Q, Ding K, Jia Y, Li C, Zhu Y, Chen W. Preoperative incidence and risk factors of deep vein thrombosis in patients with an isolated patellar fracture. BMC Musculoskelet Disord 2022; 23:204. [PMID: 35241054 PMCID: PMC8895776 DOI: 10.1186/s12891-022-05163-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/28/2022] [Indexed: 11/10/2022] Open
Abstract
Purpose This study aimed to investigate the incidence, location, and related factors of preoperative deep venous thrombosis (DVT) in patients with isolated patellar fractures. Methods Patients with an isolated patellar fracture, admitted between January 2013 and December 2019 at our institution, were retrospectively analyzed. Upon admission, patients underwent routine Doppler ultrasound scanning (DUS) of the bilateral lower extremities to detect DVT; those with DVT were assigned to the case group and those without DVT to the control group. Patients in both groups did not perform preoperative off-bed weight-bearing exercises. Data on demographics, comorbidities, and laboratory test results upon admission were extracted. Variables were evaluated between the two groups using univariate analyses, and independent risk factors associated with DVT were identified by logistic regression analysis. Results During the study period, 827 patients were included, of whom 5.8% (48/827) were found to have preoperative DVT. In DVT patients, 85.4%(41/48) were injured, 8.3%(4/48) were not injured, and 6.3%(3/48) were lower limbs. Multivariate analysis showed that male (male vs. female, odds ratio, OR = 2.25), delayed from injury to DUS (in each day, OR = 1.29), and elevated plasma D-dimer level (> 0.5 µg/mL, OR = 2.47) were independent risk factors associated with DVT. Conclusions Despite the low prevalence of DVT after an isolated patellar fracture, this study underscores the importance of identifying those with a high risk of DVT, especially those with multiple identifiable factors, and encourage the early targeted use of anti-thromboembolic agents to reduce DVT occurrence.
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Affiliation(s)
- Weijie Yang
- Trauma Emergency Center, Key Laboratory of Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, PR China
| | - Haicheng Wang
- Trauma Emergency Center, Key Laboratory of Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, PR China
| | - Qun Wei
- Department of Hospital Infection Control, Department of Public Health, Hebei General Hospital, Shijiazhuang, 050051, Hebei, PR China
| | - Kai Ding
- Trauma Emergency Center, Key Laboratory of Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, PR China
| | - Yuxuan Jia
- Department of Clinical Medicine, School of Basic Medicine, Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Chao Li
- Trauma Emergency Center, Key Laboratory of Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, PR China
| | - Yanbin Zhu
- Trauma Emergency Center, Key Laboratory of Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, PR China.
| | - Wei Chen
- Trauma Emergency Center, Key Laboratory of Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, PR China.
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Sloos PH, Maas MAW, Hollmann MW, Juffermans NP, Kleinveld DJB. The effect of shock duration on trauma-induced coagulopathy in a murine model. Intensive Care Med Exp 2022; 10:1. [PMID: 34993669 PMCID: PMC8738789 DOI: 10.1186/s40635-021-00428-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/20/2021] [Indexed: 11/10/2022] Open
Abstract
Background Trauma-induced coagulopathy (TIC) is a life-threatening condition associated with high morbidity and mortality. TIC can present with different coagulation defects. In this study, the aim was to determine the effect of shock duration on TIC characteristics. We hypothesized that longer duration of shock leads to a more hypocoagulable rotational thromboelastometry (ROTEM) profile compared to a shorter duration of shock. Methods Male B57BL/6J(c) mice (n = 5–10 per group) were sedated and mechanically ventilated. Trauma was induced by bilateral lower limb fractures and crush injuries to the liver and small intestine. Shock was induced by blood withdrawals until a mean arterial pressure of 25–30 mmHg was achieved. Groups reflected trauma and shock for 30 min (TS30) and trauma and shock for 90 min (TS90). Control groups included ventilation only (V90) and trauma only (T90). Results Mice in the TS90 group had significantly increased base deficit compared to the V90 group. Mortality was 10% in the TS30 group and 30% in the TS90 group. ROTEM profile was more hypocoagulable, as shown by significantly lower maximum clot firmness (MCF) in the TS30 group (43.5 [37.5–46.8] mm) compared to the TS90 group (52.0 [47.0–53.0] mm, p = 0.04). ROTEM clotting time and parameters of clot build-up did not significantly differ between groups. Conclusions TIC characteristics change with shock duration. Contrary to the hypothesis, a shorter duration of shock was associated with decreased maximum clotting amplitudes compared to a longer duration of shock. The effect of shock duration on TIC should be further assessed in trauma patients. Supplementary Information The online version contains supplementary material available at 10.1186/s40635-021-00428-1.
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Affiliation(s)
- Pieter H Sloos
- Department of Intensive Care Medicine, Amsterdam UMC Location AMC, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands
| | - M Adrie W Maas
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands
| | - Markus W Hollmann
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands.,Department of Anaesthesiology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands
| | - Nicole P Juffermans
- Department of Intensive Care Medicine, Amsterdam UMC Location AMC, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands.,Department of Intensive Care Medicine, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Derek J B Kleinveld
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands. .,Department of Intensive Care Medicine, Erasmus MC, Rotterdam, The Netherlands.
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20
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Upper Extremity Deep Venous Thrombosis Risk Factors, Associated Morbidity and Mortality in Trauma Patients. World J Surg 2022; 46:561-567. [PMID: 34981151 DOI: 10.1007/s00268-021-06383-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The literature on upper extremity deep venous thrombosis (UEDVT) is not as abundant as that on lower extremities. This study aimed to identify the risk factors for UEDVT, associated mortality and morbidity in trauma patients and the impact of pharmacological prophylaxis therein. METHODS A 3-year retrospective review of patients admitted to a Level 1 trauma center was conducted. Patients aged 18 years or older who had experienced a traumatic event and had undergone an upper extremity ultrasound (UEUS) were included in the study. Multiple logistic regression was used to identify independent risk factors that contributed to UEDVT. RESULTS A total of 6,607 patients were admitted due to traumatic injuries during the study period, of whom 5.6% (373) had at least one UEUS during their hospitalization. Fifty-six (15%) were diagnosed with an UEDVT, as well as three non-fatal pulmonary emboli (PE) and four (7.1%) deaths, p = 0.03. Pharmacological prophylaxis with low-molecular-weight heparin (LMWH) or unfractionated heparin showed a protective effect against UEDVT; among the patients positive for UEDVT, 14 of 186 patients (7.5%) received LMWH, while 42 of 195 (21.5%) did not receive LMWH (p < 0.001). Multiple logistic regression revealed that the presence of upper extremity fractures, peripherally inserted central catheter (PICC) lines, and traumatic brain injury (TBI) were independent risk factors for UEDVT. CONCLUSIONS UEDVT are associated with a higher mortality. The presence of upper extremity fractures, PICC lines, and TBI were independent risk factors for UEDVTs. Further, pharmacological prophylaxis reduces the risk of UEDVT.
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21
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Gaitanidis A, Breen KA, Christensen MA, Saillant NN, Kaafarani HMA, Velmahos GC, Mendoza AE. Low-Molecular Weight Heparin is Superior to Unfractionated Heparin for Elderly Trauma Patients. J Surg Res 2021; 268:432-439. [PMID: 34416415 DOI: 10.1016/j.jss.2021.06.074] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 05/13/2021] [Accepted: 06/21/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Several studies have demonstrated that low-molecular weight heparin (LMWH) is superior to unfractionated heparin (UFH) in trauma patients. The superiority of either one has not been established for the elderly. In this study, we compared LMWH to UFH in elderly trauma patients. METHODS A retrospective analysis of the American College of Surgeons' Trauma Quality Improvement Program database was performed for patients aged ≥65 y. Propensity score matching was performed to minimize confounders between the two groups. Outcomes included venous thromboembolic (VTE) and bleeding events. RESULTS Overall, 93,987 patients were identified (mean age 77.1 ± 7.3 y, females 55,035 [58.6%]), of which 67,738 (72.1%) patients received LMWH and 26,249 (27.9%) received UFH. After Propensity score matching, LMWH was associated with a lower incidence of deep venous thrombosis (1.7% versus 2.1%, P = 0.007) and pulmonary embolisms (0.6% versus 1%, P< 0.001). LMWH was also associated with fewer bleeding complications (transfusions: 2.8% versus 3.5%, P< 0.001, procedures: 0.7% versus 0.9%, P = 0.007). Sub-analyses showed that differences in VTE rates were identified in patients with mild injuries (Injury Severity Score [ISS] <16, 0.6% versus 1.9%, P< 0.001). Differences in bleeding complications were identified in patients with injuries of mild (ISS <16, transfusions: 3% versus 3.8%, P< 0.001, surgeries: 0.3% versus 0.4%, P= 0.015) and moderate severity (ISS 16-24, transfusions: 1.9% versus 2.7%, P= 0.038, surgeries: 1% versus 1.7%, P= 0.013). CONCLUSION LMWH prophylaxis is superior to UFH for VTE prevention among elderly trauma patients. LMWH prophylaxis is associated with fewer bleeding complications compared to UFH in patients with injuries of mild or moderate severity.
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Affiliation(s)
- Apostolos Gaitanidis
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts
| | - Kerry A Breen
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts
| | - Mathias A Christensen
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts; Department of Anesthesia, Center of Head and Orthopedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Noelle N Saillant
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts
| | - Haytham M A Kaafarani
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts
| | - George C Velmahos
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts
| | - April E Mendoza
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts.
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22
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Smith A, Duchesne J, Marturano M, Lawicki S, Sexton K, Taylor JR, Richards J, Harris C, Moreno-Ponte O, Cannon JW, Guzman JF, Pickett ML, Cripps MW, Curry T, Costantini T, Guidry C. Does Gender Matter: A Multi-Institutional Analysis of Viscoelastic Profiles for 1565 Trauma Patients With Severe Hemorrhage. Am Surg 2021; 88:512-518. [PMID: 34266290 DOI: 10.1177/00031348211033542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Viscoelastic tests including thromboelastography (TEG) and rotational thromboelastometry (ROTEM) are being used in patients with severe hemorrhage at trauma centers to guide resuscitation. Several recent studies demonstrated hypercoagulability in female trauma patients that was associated with a survival advantage. The objective of our study was to elucidate the effects of gender differences in TEG/ROTEM values on survival in trauma patients with severe hemorrhage. METHODS A retrospective review of consecutive adult patients receiving massive transfusion protocol (MTP) at 7 Level I trauma centers was performed from 2013 to 2018. Data were stratified by gender and then further examined by TEG or ROTEM parameters. Results were analyzed using univariate and multi-variate analyses. RESULTS A total of 1565 patients were included with 70.9% male gender (n = 1110/1565). Female trauma patients were older than male patients (43.5 ± .9 vs 41.1 ± .6 years, P = .01). On TEG, females had longer reaction times (6.1 ± .9 min vs 4.8 ± .2 min, P = .03), increased alpha angle (68.6 ± .8 vs 65.7 ± .4, P < .001), and higher maximum amplitude (59.8 ± .8 vs 56.3 ± .4, P < .001). On ROTEM, females had significantly longer clot time (99.2 ± 13.7 vs 75.1 ± 2.6 sec, P = .09) and clot formation time (153.6 ± 10.6 sec vs 106.9 ± 3.8 sec, P < .001). When comparing by gender, no difference for in-hospital mortality was found for patients in the TEG or ROTEM group (P > .05). Multivariate analysis showed no survival difference for female patients (OR 1.11, 95% CI .83-1.50, P = .48). CONCLUSIONS Although a difference between male and females was found on TEG/ROTEM for certain clotting parameters, no difference in mortality was observed. Prospective multi-institutional studies are needed.
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Affiliation(s)
- Alison Smith
- Department of Surgery, 12255Tulane University School of Medicine, New Orleans, LA, USA
| | - Juan Duchesne
- Department of Surgery, 12255Tulane University School of Medicine, New Orleans, LA, USA
| | - Matthew Marturano
- Department of Surgery, 12255Tulane University School of Medicine, New Orleans, LA, USA
| | - Shaun Lawicki
- Department of Pathology, Louisiana State University, New Orleans, LA, USA
| | - Kevin Sexton
- Department of Surgery, 12215University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - John R Taylor
- Department of Surgery, 12215University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Justin Richards
- Department of Anesthesia, University of Maryland, Baltimore, MD, USA
| | - Charles Harris
- Department of Surgery, 12255Tulane University School of Medicine, New Orleans, LA, USA
| | | | - Jeremy W Cannon
- Department of Surgery, 6572University of Pennsylvania, Philadelphia, PA, USA
| | - Jessica F Guzman
- Department of Surgery, 6572University of Pennsylvania, Philadelphia, PA, USA
| | - Maryanne L Pickett
- Department of Surgery, University of Texas Southwestern, Dallas, TX, USA
| | - Michael W Cripps
- Department of Surgery, University of Texas Southwestern, Dallas, TX, USA
| | - Terry Curry
- Department of Surgery, 8784University of California San Diego, San Diego, CA, USA
| | - Todd Costantini
- Department of Surgery, 8784University of California San Diego, San Diego, CA, USA
| | - Chrissy Guidry
- Department of Surgery, 12255Tulane University School of Medicine, New Orleans, LA, USA
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23
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Rigor RR, Schutzman LM, Galante JM, Brown IE. Viscoelastic Coagulation Monitor (VCMVet) Reference Intervals and Sex Differences in Mature Adult Mice. Acta Haematol 2021; 144:633-640. [PMID: 34237720 DOI: 10.1159/000516587] [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] [Received: 12/22/2020] [Accepted: 04/06/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Viscoelastic coagulation tests are useful to assess coagulation status in the clinical setting and to aid in understanding underlying pathophysiological mechanisms that affect coagulation status. Such tests also are useful for coagulation research. Because mouse models are widely used to study molecular mechanisms in fine detail, a simple viscoelastic coagulation test requiring small blood volumes would be convenient for such studies in mice. METHODS We tested viscoelastic coagulation properties of normal healthy adult mice using a novel veterinary clinical point-of-care device, Viscoelastic Coagulation Monitor (VCM Vet™; Entegrion Corp.). Fresh whole blood was collected from 63 healthy mature adult C57 black 6N mice, with ultimately 54 mice, equal numbers of male and females, used to determine reference intervals (RIs) for VCM test parameters. RESULTS RIs were determined for equal numbers of male and female mice: clot time: 43.0-353.0 s; clot formation time: 49.4-137.6 s; alpha angle: 54.4-62.2°; A10: 25.0-49.6 VCM units; A20: 31.0-56.5 VCM units; maximum clot firmness: 37.6-62.8 VCM units; Lysis Index 30 (Li30): 99.8-100.0%; and Li45: 99.7-100.0%. Significant differences were found between male and female subgroups, where females had higher mean A10 and A20 and median MCF values, indicating greater clot firmness in female versus male mice. CONCLUSION VCM Vet is a feasible viscoelastic coagulation test device for studies with mature adult mice, including studying inherent sex differences in coagulation parameters. Inherent differences in coagulability of male and female mice warrant further investigation to determine if such differences underlie greater coagulopathic, hemorrhagic, or thromboembolic risk during trauma or other pathophysiologic conditions.
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Affiliation(s)
- Robert R Rigor
- Department of Surgery, Trauma, Acute Care Surgery, and Surgical Critical Care, University of California Davis Medical Center, Sacramento, California, USA
| | - Linda M Schutzman
- Department of Surgery, Trauma, Acute Care Surgery, and Surgical Critical Care, University of California Davis Medical Center, Sacramento, California, USA
| | - Joseph M Galante
- Department of Surgery, Trauma, Acute Care Surgery, and Surgical Critical Care, University of California Davis Medical Center, Sacramento, California, USA
| | - Ian E Brown
- Department of Surgery, Trauma, Acute Care Surgery, and Surgical Critical Care, University of California Davis Medical Center, Sacramento, California, USA
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24
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Toelle LJ, Hatton GE, Refuerzo JS, Wade CE, Cotton BA, Kao LS. Hypercoagulability in pregnant trauma patients. Trauma Surg Acute Care Open 2021; 6:e000714. [PMID: 34250259 PMCID: PMC8230999 DOI: 10.1136/tsaco-2021-000714] [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: 11/05/2022] Open
Abstract
Circulating hormones affect coagulopathy in pregnancy and after trauma. The hemostatic profile of pregnant women after injury has not been characterized. We hypothesized that injured pregnant females would present with an initial thrombelastography (TEG) reflecting a more hypercoagulable profile and a higher incidence of venous thromboembolic events (VTE) when compared with non-pregnant females and males.
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Affiliation(s)
- Lisa J Toelle
- Surgery, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Gabrielle E Hatton
- Surgery, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Jerrie S Refuerzo
- Surgery, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Charles E Wade
- Surgery, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Bryan A Cotton
- Surgery, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Lillian S Kao
- Surgery, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
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25
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Hashim YM, Dhillon NK, Rottler NP, Ghoulian J, Barmparas G, Ley EJ. Correcting Coagulopathy With Fresh Frozen Plasma in the Surgical Intensive Care Unit: How Much Do We Need to Transfuse? Am Surg 2021; 88:2030-2034. [PMID: 34056950 DOI: 10.1177/00031348211023412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Thromboelastography (TEG) is an assay that assesses the coagulation status. Patients with prolonged reaction time (R) require fresh frozen plasma (FFP); however, the volume required to correct the R time is unknown. We sought to quantify the volume required to correct the R time and calculate the response ratio in our surgical intensive care unit (SICU) to allow for targeted resuscitation. METHODS Surgical intensive care unit patients between Aug 2017 and July 2019 with a prolonged initial R time and at least two TEG tests performed within 24 hours were included. The response ratio was defined as the change in the R time divided by the number of FFP units. High responders (response ratio >5 minutes/unit) were compared to low responders (response ratio ≤5 minutes/unit). RESULTS Forty-six patients were included. While the mean response ratio was 5 minutes/unit, there was significant variation among patients. There were 28.0 (60.9%) low responders and 18.0 (39.1%) high responders. Low responders were more likely male (64.0% vs. 33.0%, P = .04), had a higher Acute Physiology and Chronic Health Evaluation (APACHE) IV score (42.0 vs. 27.0, P = .03), and a higher mortality rate (54.0% vs. 22.0%, P = .04). CONCLUSIONS On average, one unit of FFP corrects the R time by 5 minutes; however, there was significant variation between high and low responders. Male patients with higher APACHE IV score are expected to be low responders with a higher mortality rate. These findings can guide FFP transfusion and provide additional prognostication.
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Affiliation(s)
- Yassar M Hashim
- Department of Surgery, Division of Trauma and Critical Care, 22494Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Navpreet K Dhillon
- Department of Surgery, Division of Trauma and Critical Care, 22494Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Nicholas P Rottler
- Department of Surgery, Division of Trauma and Critical Care, 22494Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Joshua Ghoulian
- Department of Surgery, Division of Trauma and Critical Care, 22494Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Galinos Barmparas
- Department of Surgery, Division of Trauma and Critical Care, 22494Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Eric J Ley
- Department of Surgery, Division of Trauma and Critical Care, 22494Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Disseminated intravascular coagulation immediately after trauma predicts a poor prognosis in severely injured patients. Sci Rep 2021; 11:11031. [PMID: 34040091 PMCID: PMC8154895 DOI: 10.1038/s41598-021-90492-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/04/2021] [Indexed: 12/12/2022] Open
Abstract
Trauma patients die from massive bleeding due to disseminated intravascular coagulation (DIC) with a fibrinolytic phenotype in the early phase, which transforms to DIC with a thrombotic phenotype in the late phase of trauma, contributing to the development of multiple organ dysfunction syndrome (MODS) and a consequently poor outcome. This is a sub-analysis of a multicenter prospective descriptive cross-sectional study on DIC to evaluate the effect of a DIC diagnosis on the survival probability and predictive performance of DIC scores for massive transfusion, MODS, and hospital death in severely injured trauma patients. A DIC diagnosis on admission was associated with a lower survival probability (Log Rank P < 0.001), higher frequency of massive transfusion and MODS and a higher mortality rate than no such diagnosis. The DIC scores at 0 and 3 h significantly predicted massive transfusion, MODS, and hospital death. Markers of thrombin and plasmin generation and fibrinolysis inhibition also showed a good predictive ability for these three items. In conclusion, a DIC diagnosis on admission was associated with a low survival probability. DIC scores obtained immediately after trauma predicted a poor prognosis of severely injured trauma patients.
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27
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Moore EE, Moore HB, Kornblith LZ, Neal MD, Hoffman M, Mutch NJ, Schöchl H, Hunt BJ, Sauaia A. Trauma-induced coagulopathy. Nat Rev Dis Primers 2021; 7:30. [PMID: 33927200 PMCID: PMC9107773 DOI: 10.1038/s41572-021-00264-3] [Citation(s) in RCA: 278] [Impact Index Per Article: 92.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/19/2021] [Indexed: 12/12/2022]
Abstract
Uncontrolled haemorrhage is a major preventable cause of death in patients with traumatic injury. Trauma-induced coagulopathy (TIC) describes abnormal coagulation processes that are attributable to trauma. In the early hours of TIC development, hypocoagulability is typically present, resulting in bleeding, whereas later TIC is characterized by a hypercoagulable state associated with venous thromboembolism and multiple organ failure. Several pathophysiological mechanisms underlie TIC; tissue injury and shock synergistically provoke endothelial, immune system, platelet and clotting activation, which are accentuated by the 'lethal triad' (coagulopathy, hypothermia and acidosis). Traumatic brain injury also has a distinct role in TIC. Haemostatic abnormalities include fibrinogen depletion, inadequate thrombin generation, impaired platelet function and dysregulated fibrinolysis. Laboratory diagnosis is based on coagulation abnormalities detected by conventional or viscoelastic haemostatic assays; however, it does not always match the clinical condition. Management priorities are stopping blood loss and reversing shock by restoring circulating blood volume, to prevent or reduce the risk of worsening TIC. Various blood products can be used in resuscitation; however, there is no international agreement on the optimal composition of transfusion components. Tranexamic acid is used in pre-hospital settings selectively in the USA and more widely in Europe and other locations. Survivors of TIC experience high rates of morbidity, which affects short-term and long-term quality of life and functional outcome.
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Affiliation(s)
- Ernest E Moore
- Ernest E Moore Shock Trauma Center at Denver Health, Denver, CO, USA.
- Department of Surgery, University of Colorado Denver, Aurora, CO, USA.
| | - Hunter B Moore
- Department of Surgery, University of Colorado Denver, Aurora, CO, USA
| | - Lucy Z Kornblith
- Trauma and Surgical Critical Care, Zuckerberg San Francisco General Hospital, University of California San Francisco, San Francisco, CA, USA
| | - Matthew D Neal
- Pittsburgh Trauma Research Center, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Maureane Hoffman
- Duke University School of Medicine, Transfusion Service, Durham VA Medical Center, Durham, NC, USA
| | - Nicola J Mutch
- Aberdeen Cardiovascular & Diabetes Centre, School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Herbert Schöchl
- Department of Anesthesiology and Intensive Care Medicine, AUVA Trauma Centre Salzburg, Academic Teaching Hospital of the Paracelsus Medical University, Salzburg and Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Centre, Vienna, Austria
| | | | - Angela Sauaia
- Department of Surgery, University of Colorado Denver, Aurora, CO, USA
- Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
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28
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Savioli G, Ceresa IF, Caneva L, Gerosa S, Ricevuti G. Trauma-Induced Coagulopathy: Overview of an Emerging Medical Problem from Pathophysiology to Outcomes. MEDICINES (BASEL, SWITZERLAND) 2021; 8:16. [PMID: 33805197 PMCID: PMC8064317 DOI: 10.3390/medicines8040016] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/15/2021] [Accepted: 03/07/2021] [Indexed: 12/17/2022]
Abstract
Coagulopathy induced by major trauma is common, affecting approximately one-third of patients after trauma. It develops independently of iatrogenic, hypothermic, and dilutive causes (such as iatrogenic cause in case of fluid administration), which instead have a pejorative aspect on coagulopathy. Notwithstanding the continuous research conducted over the past decade on Trauma-Induced Coagulopathy (TIC), it remains a life-threatening condition with a significant impact on trauma mortality. We reviewed the current evidence regarding TIC diagnosis and pathophysiological mechanisms and summarized the different iterations of optimal TIC management strategies among which product resuscitation, potential drug administrations, and hemostatis-focused approaches. We have identified areas of ongoing investigation and controversy in TIC management.
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Affiliation(s)
- Gabriele Savioli
- Emergency Department, IRCCS Policlinico San Matteo, PhD University of Pavia, 27100 Pavia, Italy; (I.F.C.); (S.G.)
| | - Iride Francesca Ceresa
- Emergency Department, IRCCS Policlinico San Matteo, PhD University of Pavia, 27100 Pavia, Italy; (I.F.C.); (S.G.)
| | - Luca Caneva
- Anesthesia and Intensive Care, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | - Sebastiano Gerosa
- Emergency Department, IRCCS Policlinico San Matteo, PhD University of Pavia, 27100 Pavia, Italy; (I.F.C.); (S.G.)
| | - Giovanni Ricevuti
- Department of Drug Science, University of Pavia, 27100 Pavia, Italy;
- Saint Camillus International University of Health Sciences, 00152 Rome, Italy
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Gaitanidis A, Breen KA, Nederpelt C, Parks J, Saillant N, Kaafarani HMA, Velmahos GC, Mendoza AE. Timing of thromboprophylaxis in patients with blunt abdominal solid organ injuries undergoing nonoperative management. J Trauma Acute Care Surg 2021; 90:148-156. [PMID: 33048907 DOI: 10.1097/ta.0000000000002972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Decision making regarding the optimal timing for initiating thromboprophylaxis in patients with blunt abdominal solid organ injuries (BSOIs) remains ill-defined, with no guidelines defining optimal timing. In this study, we aimed to evaluate the relationship of the timing of thromboprophylaxis with thromboembolic and bleeding complications in the setting of BSOIs. METHODS A retrospective analysis of the Trauma Quality Improvement Program database was performed between 2013 and 2016. All patients with isolated BSOIs (liver, spleen, pancreas, or kidney, Abbreviated Injury Scale score, <3 in other regions) who underwent initial nonoperative management (NOM) were included. Patients were divided into three groups (early, <48 hours; intermediate, 48-72 hours; and late, >72 hours) based on timing of thromboprophylaxis initiation. Primary outcomes were rates of thromboembolism and bleeding after thromboprophylaxis initiation. RESULTS Of the 25,118 patients with isolated BSOIs, 3,223 met the inclusion criteria (age, 38.7 ± 17.3 years; males, 2.082 [64.6%]), among which 1,832 (56.8%) received early thromboprophylaxis, 703 (21.8%) received intermediate thromboprophylaxis, and 688 (21.4%) received late thromboprophylaxis. Late thromboprophylaxis initiation was independently associated with a higher likelihood of both deep vein thrombosis (odds ratio [OR], 3.15; 95% confidence interval [CI], 1.68-5.91, p < 0.001) and pulmonary embolism (OR, 4.29; 95% CI, 1.95-9.42; p < 0.001). Intermediate thromboprophylaxis initiation was independently associated with a higher likelihood of deep venous thrombosis (OR, 2.38; 95% CI, 1.20-4.74; p = 0.013), but not pulmonary embolism (p = 0.960) compared with early initiation. Early (but not intermediate) thromboprophylaxis initiation was independently associated with a higher likelihood of bleeding (OR, 2.05; 95% CI, 1.11-2.18; p = 0.023), along with a history of diabetes mellitus, splenic, and high-grade liver injuries. CONCLUSION Early thromboprophylaxis should be considered in patients with BSOIs undergoing nonoperative management who are at low likelihood of bleeding. An intermediate delay (48-72 hours) of thromboprophylaxis should be considered for patients with diabetes mellitus, splenic injuries, and Grades 3 to 5 liver injuries. LEVEL OF EVIDENCE Therapeutic, Level IV.
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Affiliation(s)
- Apostolos Gaitanidis
- From the Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston, Massachusetts
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Zuo J, Hu Y. Admission deep venous thrombosis of lower extremity after intertrochanteric fracture in the elderly: a retrospective cohort study. J Orthop Surg Res 2020; 15:549. [PMID: 33213498 PMCID: PMC7678067 DOI: 10.1186/s13018-020-02092-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/11/2020] [Indexed: 11/10/2022] Open
Abstract
Objective The purpose of this study was to investigate the incidence, location, and related factors of deep venous thrombosis (DVT) of the bilateral lower extremities after intertrochanteric fractures in the elderly. Methods Retrospective analysis was performed on the elderly patients with intertrochanteric fracture who were admitted from January 2017 to December 2019. At admission, patients receive routine ultrasound Doppler scanning of bilateral lower extremities to detect DVT; those with DVT were assigned to the case group and those without DVT to the control group. Patient data on demographics, comorbidities, injury-related data, and laboratory test results at admission were extracted. Logistic regression analyses were conducted to identify the independent risk factors associated with DVT. Results Five hundred seventy-eight patients were included, among whom 116 (20.1%) had DVT. Among those with DV, 70.7% (82/116) had DVT of the distal type, 24 (29.6%) had DVT of the proximal type, and 10 (10.4%) had mixed DVT. In 76.7% (89/116) of patients, DVT occurred in the fractured extremity, 9.5% (11/116) in the bilateral and 13.8% (16/116) in the non-fractured extremity. Multivariate analyses identified obesity, delay to admission, increased D-dimer level (> 1.44 mg/L) and reduced albumin (< 31.7 g/L) as independent factors. Conclusions Admission incidence of DVT was high in elderly patients with intertrochanteric fractures, especially the proximal DVT. Identification of associated risk factors is useful for individualized assessment risk of DVT and early targeted interventions.
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Affiliation(s)
- Jinzeng Zuo
- Graduate School of Tianjin Medical University, No. 406 Jiefang South Road, Tianjin, 300200, P. R. China.,Department of Orthopaedic Surgery, The Second Hospital of Tangshan, Tangshan, 063000, Hebei, P. R. China
| | - Yongcheng Hu
- Department of Orthopaedic Oncology, Tianjin Hospital, Tianjin, 300211, P. R. China.
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Fibrinolysis Index as a new predictor of deep vein thrombosis after traumatic lower extremity fractures. Clin Chim Acta 2020; 511:227-234. [PMID: 33080260 DOI: 10.1016/j.cca.2020.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND Deep vein thrombosis (DVT) is a common complication in patients with traumatic injury. The purpose of this study was to develop a potential predictor of DVT. METHODS This case-control study enrolled adult trauma patients and healthy volunteers. Patients underwent angiography before surgery to diagnose DVT. Patients with or without DVT were matched by gender, age and fracture sites. Laboratory parameters included lysis potential (LP), lysis time (LT), blood cell counts, conventional coagulation tests, tissue plasminogen activator inhibitor complex (tPAIC) and others. RESULTS 41 of 319 patients with DVT were matched with 41 patients without DVT and 80 healthy volunteers were controls. LP and LT were significantly decreased in patients with DVT than without (P = 0.043 and P = 0.014, respectively). The level of tPAIC in the DVT group was significantly higher than in patients without DVT (P = 0.042). We defined the Fibrinolysis Index as (-10.707) × LP + (-0.607) × LT (min) + 0.012 × fibrinogen (mg/dl) + 0.299 × tPAIC (ng/ml) + 9.917, and found that the area under the receiver operating characteristic curve for the Fibrinolysis Index was 0.802, making it a novel indicator. CONCLUSION The Fibrinolysis Index represents a new discriminator for predicting DVT after traumatic lower extremity fractures.
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Treatment of blunt cerebrovascular injuries: Anticoagulants or antiplatelet agents? J Trauma Acute Care Surg 2020; 89:74-79. [PMID: 32251264 DOI: 10.1097/ta.0000000000002704] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Blunt cerebrovascular injury (BCVI) is associated with cerebrovascular accidents (CVA). Early therapy with antiplatelet agents or anticoagulants is recommended. There are limited data comparing the effectiveness of these treatments. The aim of our study was to compare outcomes between BCVI patients who received anticoagulants versus those who received antiplatelet agents. METHODS We performed an (2011-2015) analysis of the Nationwide Readmission Database and included all adult trauma patients 18 years or older who had an isolated BCVI (other body regions Abbreviated Injury Scale [AIS] < 3). Head injury patients or those who developed a CVA during the index admission were excluded. Patients were stratified into anticoagulants and antiplatelet agents. Propensity score matching was performed (1:1 ratio) to control for demographics, comorbidities, BCVI grade, distribution, and severity of injuries. Outcomes were readmission with CVA and mortality within 6 months. RESULTS A total of 725 BCVI patients were identified. A matched cohort of 370 patients (antiplatelet agents, 185; anticoagulants, 185) was obtained. Mean age was 50 ± 15 years, neck AIS was 3 (3,4), and Injury Severity Score was 12 (9-17). The majority of the patients (69%) had high-grade BCVI (AIS ≥ 3). Overall, 3.7% were readmitted with CVA and 3% died within 6 months. Patients who received anticoagulants had a lower rate of readmission with CVA (1.8% vs. 5.72%; p = 0.03), and a lower rate of 6-month mortality (1.3% vs. 4.9%; p = 0.03). There was no significant difference between the two groups reading the median time to stroke (9 days vs. 6 days; p = 0.12). CONCLUSION The BCVI patients on CVA prophylaxis for BCVI have a 3.7% rate of stroke after discharge. Compared with antiplatelet agents, anticoagulants are associated with lower rates of CVA in the first 6-month postdischarge. Further studies are required to identify the optimal agent to prevent CVA in this high-risk subset of trauma patients. LEVEL OF EVIDENCE Therapeutic, level IV.
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Mulder MB, Proctor KG, Valle EJ, Livingstone AS, Nguyen DM, Van Haren RM. Hypercoagulability After Resection of Thoracic Malignancy: A Prospective Evaluation. World J Surg 2020; 43:3232-3238. [PMID: 31407092 DOI: 10.1007/s00268-019-05123-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Rates of venous thromboembolism are increased in thoracic malignancy; however, coagulation patterns are not established. We hypothesize that patients with esophageal and lung malignancy have similar hypercoagulable pre- and postoperative profiles as defined by rotational thromboelastometry (ROTEM). METHODS Prospective study was conducted in 47 patients with esophageal and lung cancer undergoing surgical resection. ROTEM evaluated pre/postoperative coagulation status. RESULTS Patients with thoracic malignancy were hypercoagulable by ROTEM, but not by conventional coagulation tests. Preoperative hypercoagulability was higher in lung versus esophageal cancer (64 vs. 16%, p = 0.001). Lung cancer patients that were hypercoagulable preoperatively demonstrated decreased maximum clot firmness (MCF) (p = 0.044) and increased clot time (p = 0.049) after surgical resection, suggesting reversal of hypercoagulability. Resection of esophageal cancer increased hypercoagulability (16 vs. 56%, p = 0.002) via elevated MCF (reflecting platelet activity). Hypercoagulability remained at follow-up clinic for both lung and esophageal cancer patients. CONCLUSIONS Hypercoagulability in patients with lung malignancies reversed following complete surgical resection, whereas hypercoagulability occurred only postoperatively in those with esophageal malignancies. In both, hypercoagulability was associated with fibrin and platelet function.
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Affiliation(s)
- Michelle B Mulder
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Kenneth G Proctor
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Evan J Valle
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Alan S Livingstone
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Dao M Nguyen
- Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine and Ryder Trauma Center, University of Miami, Miami, FL, USA
| | - Robert M Van Haren
- Division of Thoracic Surgery, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45267, USA.
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Abstract
OBJECTIVE To review the current literature on the use of viscoelastic hemolytic assays, such as thromboelastography (TEG) and rotational thromboelastometry (ROTEM), during the perioperative period of patients and determine the ability of TEG and ROTEM to detect hypercoagulability and identify increased risk of the development of venous thromboembolism (VTE). DATA SOURCES PubMed, EMBASE, and Cochrane online databases were queried through February 11, 2018, by pairing the terms "thromboelastography," "viscoelastic hemostatic assays," and "rotational thromboelastometry" with "venous thromboembolism," "deep vein thrombosis," "pulmonary embolism," and "hypercoagulability." STUDY SELECTION Inclusion and exclusion criteria were established to determine relevance and quality of data, of which 2.54% of initially identified studies met. DATA EXTRACTION AND SYNTHESIS Articles and citations were reviewed for relevance by 2 independent individuals following PRISMA guidelines as well as a quality assessment of data as established by Zaza et al. In studies that separated patients postoperatively by VTE development or no VTE development, data were pooled utilizing a modified DerSimmion and Laird random effects model. RESULTS One thousand eight hundred ninety-three articles were assessed for eligibility, yielding 370 abstracts. Of the 370 abstracts, 35 studies were included, and of these, only 5 were included in the meta-analysis. Studies included postsurgical patients in a variety of surgical fields, encompassing a total of 8939 patients, with 717 thrombotic events reported. Elevated maximum amplitude (MA) was a statistically significant indicator of hypercoagulability across at least 1 perioperative time point in 17 (50%) of the articles reviewed, consisting of 6348 (72%) patients. The pooled mean MA value for defining hypercoagulability was greater than 66.70 mm. Using a prepublished value for hypercoagulability of 65 mm, the combined effect of MA on the development of VTE in postsurgical patients was determined to be 1.31 (95% confidence, 0.74-2.34, P = 0.175) and was 46% sensitive and 62% specific in predicting a postoperative VTE. CONCLUSIONS Only 1 parameter, MA, was consistently used to both define hypercoagulability and be predictive of VTE after traumatic injury and surgical intervention; however, there remains a broad variability in the definition of hypercoagulability as determined by MA and thus limits its predictive ability. In addition, when hypercoagulability was measured throughout the perioperative period, TEG consistently demonstrated hypercoagulability starting on post-op day 1 (POD1). LEVEL OF EVIDENCE Diagnostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Not all in your head (and neck): Stroke after blunt cerebrovascular injury is associated with systemic hypercoagulability. J Trauma Acute Care Surg 2020; 87:1082-1087. [PMID: 31453984 DOI: 10.1097/ta.0000000000002443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Stroke secondary to blunt cerebrovascular injury (BCVI) most often occurs before initiation of antithrombotic therapy. Earlier treatment, especially in multiply injured patients with relative contraindications to antithrombotic agents, could be facilitated with improved risk stratification; furthermore, the relationship between BCVI-attributed stroke and hypercoagulability remains unknown. We hypothesized that patients who suffer BCVI-related stroke are hypercoagulable compared with those with BCVI who do not stroke. METHODS Rapid thromboelastography (TEG) was evaluated for patients with BCVI-attributed stroke at an urban Level I trauma center from 2011 to 2018. Contemporary controls who had BCVI but did not stroke were selected for comparison using propensity-score matching with 20% caliper that accounted for age, sex, injury severity, and BCVI location and grade. RESULTS During the study period, 15,347 patients were admitted following blunt trauma. Blunt cerebrovascular injury was identified in 435 (3%) patients, of whom 28 experienced associated stroke and had a TEG within 24 hours of arrival. Forty-nine patients who had BCVI but did not suffer stroke served as matched controls. Stroke patients formed clots faster as evident in their larger angle (77.5 degrees vs. 74.6 degrees, p = 0.03) and had greater clot strength as indicated by their higher maximum amplitude (MA) (66.9 mm vs. 61.9 mm, p < 0.01). Activated clotting time was shorter among stroke patients but not significantly (113 seconds vs. 121 seconds, p > 0.05). Increased angle and elevated MA were significant predictors of stroke with odds ratios of 2.97 for angle greater than 77.3 degrees and 4.30 for MA greater than 63.0 mm. CONCLUSION Patients who suffer BCVI-related stroke are hypercoagulable compared with those with BCVI who remain asymptomatic. Increased angle or MA should be considered when assessing the risk of thrombosis and determining the optimal time to initiate antithrombotic therapy in patients with BCVI. LEVEL OF EVIDENCE Prognostic, Level III.
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Duque P, Mora L, Levy JH, Schöchl H. Pathophysiological Response to Trauma-Induced Coagulopathy: A Comprehensive Review. Anesth Analg 2020; 130:654-664. [PMID: 31633501 DOI: 10.1213/ane.0000000000004478] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hypercoagulability can occur after severe tissue injury, that is likely related to tissue factor exposure and impaired endothelial release of tissue plasminogen activator (tPA). In contrast, when shock and hypoperfusion occur, activation of the protein C pathway and endothelial tPA release induce a shift from a procoagulant to a hypocoagulable and hyperfibrinolytic state with a high risk of bleeding. Both thrombotic and bleeding phenotypes are associated with increased mortality and are influenced by the extent and severity of tissue injury and degree of hemorrhagic shock. Response to trauma is a complex, dynamic process in which risk can shift from bleeding to thrombosis depending on the injury pattern, hemostatic treatment, individual responses, genetic predisposition, and comorbidities. Based on this body of knowledge, we will review and consider future directions for the management of severely injured trauma patients.
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Affiliation(s)
- Patricia Duque
- From the Anesthesiology and Critical Care Department, Gregorio Marañon Hospital, Madrid, Spain
| | - Lidia Mora
- Anesthesiology and Critical Care Department, Vall d´Hebron, Hospital, Barcelona, Spain
| | - Jerrold H Levy
- Departments of Anesthesiology and Critical Care, Duke University School of Medicine, Durham, North Carolina
| | - Herbert Schöchl
- Department of Anesthesiology and Intensive Care Medicine, AUVA Trauma Centre Salzburg, Academic Teaching Hospital of the Paracelsus Medical University, Salzburg, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
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George MJ, Prabhakara K, Toledano-Furman NE, Gill BS, Wade CE, Cotton BA, Cap AP, Olson SD, Cox CS. Procoagulant in vitro effects of clinical cellular therapeutics in a severely injured trauma population. Stem Cells Transl Med 2020; 9:491-498. [PMID: 31903737 PMCID: PMC7103617 DOI: 10.1002/sctm.19-0206] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 12/04/2019] [Indexed: 02/06/2023] Open
Abstract
Clinical trials in trauma populations are exploring the use of clinical cellular therapeutics (CCTs) like human mesenchymal stromal cells (MSC) and mononuclear cells (MNC). Recent studies demonstrate a procoagulant effect of these CCTs related to their expression of tissue factor (TF). We sought to examine this relationship in blood from severely injured trauma patients and identify methods to reverse this procoagulant effect. Human MSCs from bone marrow, adipose, and amniotic tissues and freshly isolated bone marrow MNC samples were tested. TF expression and phenotype were quantified using flow cytometry. CCTs were mixed individually with trauma patients' whole blood, assayed with thromboelastography (TEG), and compared with healthy subjects mixed with the same cell sources. Heparin was added to samples at increasing concentrations until TEG parameters normalized. Clotting time or R time in TEG decreased relative to the TF expression of the CCT treatment in a logarithmic fashion for trauma patients and healthy subjects. Nonlinear regression curves were significantly different with healthy subjects demonstrating greater relative decreases in TEG clotting time. In vitro coadministration of heparin normalized the procoagulant effect and required dose escalation based on TF expression. TF expression in human MSC and MNC has a procoagulant effect in blood from trauma patients and healthy subjects. The procoagulant effect is lower in trauma patients possibly because their clotting time is already accelerated. The procoagulant effect due to MSC/MNC TF expression could be useful in the bleeding trauma patient; however, it may emerge as a safety release criterion due to thrombotic risk. The TF procoagulant effect is reversible with heparin.
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Affiliation(s)
- Mitchell J George
- Department of Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Karthik Prabhakara
- Department of Pediatric Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Naama E Toledano-Furman
- Department of Pediatric Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Brijesh S Gill
- Department of Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Charles E Wade
- Department of Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Bryan A Cotton
- Department of Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Andrew P Cap
- U.S. Army Institute of Surgical Research, JBSA-FT Sam Houston, San Antonio, Texas
| | - Scott D Olson
- Department of Pediatric Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Charles S Cox
- Department of Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas.,Department of Pediatric Surgery, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
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Kim LH, Quon JL, Sun FW, Wortman KM, Adamson MM, Harris OA. Traumatic brain injury among female veterans: a review of sex differences in military neurosurgery. Neurosurg Focus 2019; 45:E16. [PMID: 30544324 DOI: 10.3171/2018.9.focus18369] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/10/2018] [Indexed: 11/06/2022]
Abstract
The impact of traumatic brain injury (TBI) has been demonstrated in various studies with respect to prevalence, morbidity, and mortality data. Many of the patients burdened with long-term sequelae of TBI are veterans. Although fewer in number, female veterans with TBI have been suggested to suffer from unique physical, mental, and social challenges. However, there remains a significant knowledge gap in the sex differences in TBI. Increased female representation in the military heralds an increased risk of TBI for female soldiers, and medical professionals must be prepared to address the unique health challenges in the face of changing demographics among the veteran TBI population. In this review, the authors aimed to present the current understanding of sex differences in TBI in the veteran population and suggest directions for future investigations.
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Affiliation(s)
- Lily H Kim
- 1The Defense and Veterans Brain Injury Center, VA Palo Alto Health Care System, Palo Alto.,2Department of Neurosurgery, Stanford University School of Medicine, Stanford, California; and
| | - Jennifer L Quon
- 2Department of Neurosurgery, Stanford University School of Medicine, Stanford, California; and
| | - Felicia W Sun
- 1The Defense and Veterans Brain Injury Center, VA Palo Alto Health Care System, Palo Alto.,3College of Medicine, University of Illinois, Chicago, Illinois
| | - Kristen M Wortman
- 1The Defense and Veterans Brain Injury Center, VA Palo Alto Health Care System, Palo Alto
| | - Maheen M Adamson
- 1The Defense and Veterans Brain Injury Center, VA Palo Alto Health Care System, Palo Alto.,2Department of Neurosurgery, Stanford University School of Medicine, Stanford, California; and
| | - Odette A Harris
- 1The Defense and Veterans Brain Injury Center, VA Palo Alto Health Care System, Palo Alto.,2Department of Neurosurgery, Stanford University School of Medicine, Stanford, California; and
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Platelet Function Changes in a Time-Dependent Manner Following Traumatic Brain Injury in a Murine Model. Shock 2019; 50:551-556. [PMID: 29140832 DOI: 10.1097/shk.0000000000001056] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Traumatic brain injury (TBI) results in systemic changes in coagulation and inflammation that contribute to post-traumatic morbidity and mortality. The potential interaction of platelets and pro-inflammatory cytokines in the modulation of coagulation, microthrombosis, and venous thromboembolic events after moderate TBI has not been determined. Using a murine model, we hypothesized that the degree of platelet-induced coagulation varies depending on the platelet aggregation agonist platelet-induced coagulation changes in a time-dependent manner following TBI, and changes in platelet-induced coagulation are mirrored by changes in the levels of circulating pro-inflammatory cytokines. An established weight-drop model was used to induce TBI in anesthetized mice. Blood samples were collected at intervals after injury for measurements of platelet count, serum fibrinogen, pro-inflammatory cytokines, and determination of soluble P-selectin levels. Thromboelastometry was used to evaluate changes in hemostasis. Platelet function was determined using whole blood impedance aggregometry. Ten minutes following TBI, adenosine diphosphate-induced platelet aggregation decreased as measured by platelet aggregometry. Despite no changes in platelet counts and serum fibrinogen, platelet aggregation, pro-inflammatory cytokines, and soluble P-selectin were increased at 6 h after TBI. Rotation thromboelastometry demonstrated increased maximal clot firmness at 6 h. Platelet function and coagulability returned to baseline levels 24 h following head injury. Our data demonstrate that after TBI, acute platelet dysfunction occurs followed by rebound platelet hyperaggregation. Alterations in post-TBI platelet aggregation are reflected in whole blood thromboelastometry and are temporally associated with the systemic pro-inflammatory response.
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Gurunathan U, Stanton LM, Weir RM, Hay KE, Pearse BL. A preliminary study using rotational thromboelastometry to investigate perioperative coagulation changes and to identify hypercoagulability in obese patients undergoing total hip or knee replacement. Anaesth Intensive Care 2019; 47:461-468. [PMID: 31537080 DOI: 10.1177/0310057x19864114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Surgery and obesity are known risk factors for thromboembolic events due to the presence of a hypercoagulable state. Rotational thromboelastometry is a viscoelastic assay that can provide a measure of hypercoagulability via a comprehensive assessment of the coagulation process. This prospective study investigates haemostatic changes over time, presence of hypercoagulability and the association between body mass index and thromboelastometry results in patients undergoing major orthopaedic surgery. Fifty adult patients undergoing total hip or knee replacement surgery had serial thromboelastometry measures performed prior to and following surgery, and on postoperative days 1 and 3. A hypercoagulable state, defined by an ExTEM maximum clot firmness G score ≥11 dyne/cm2, was present in 28% of the patients at baseline. The mean ExTEM maximum clot firmness G score increased by an average of three units from 10 (95% confidence interval (CI) 9–11) dyne/cm2 at baseline to 13 (95% CI 13–14) dyne/cm2 on postoperative day 3, with 85% of patients having a G score ≥11 dyne/cm2. A decrease in ExTEM and InTEM clot formation time and an increase in ExTEM, InTEM and FibTEM clot amplitude at 10 minutes, alpha angle and maximum clot firmness were observed by postoperative day 3 ( P < 0.001). There was no significant difference in the mean thromboelastometry values between patients with a body mass index <35 kg/m2or ≥35 kg/m2. Although a modest association between body mass index and the ExTEM maximum clot firmness G score was observed with exploratory data analysis, further study is required in a large cohort to test the effects of confounders, validate these findings, and determine their clinical importance.
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Affiliation(s)
- Usha Gurunathan
- Department of Anaesthesia, The Prince Charles Hospital, Brisbane, Australia.,University of Queensland, Brisbane, Australia
| | - Lisa M Stanton
- Department of Anaesthesia, The Prince Charles Hospital, Brisbane, Australia
| | - Rachael M Weir
- Department of Anaesthesia, The Prince Charles Hospital, Brisbane, Australia
| | - Karen E Hay
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Bronwyn L Pearse
- Surgery, Anaesthesia and Critical Care, The Prince Charles Hospital, Brisbane, Australia
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Moore HB, Moore BA, Sauaia A, Moore EE. Clinical relevance and practical assessment of fibrinolysis shutdown. ANZ J Surg 2019; 90:413-414. [PMID: 31535453 DOI: 10.1111/ans.15426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/04/2019] [Accepted: 08/16/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Hunter B Moore
- Department of Surgery, Ernest E. Moore Shock Trauma Center, Denver Health Medical Center, Denver, Colorado, USA
| | - Brooke A Moore
- Department of Surgery, Ernest E. Moore Shock Trauma Center, Denver Health Medical Center, Denver, Colorado, USA
| | - Angela Sauaia
- Department of Surgery, Ernest E. Moore Shock Trauma Center, Denver Health Medical Center, Denver, Colorado, USA
| | - Ernest E Moore
- Department of Surgery, Ernest E. Moore Shock Trauma Center, Denver Health Medical Center, Denver, Colorado, USA
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Dynamic coagulability after injury: Is delaying venous thromboembolism chemoprophylaxis worth the wait? J Trauma Acute Care Surg 2019; 85:907-914. [PMID: 30124623 DOI: 10.1097/ta.0000000000002048] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Severely injured patients often progress from early hypocoagulable to normal and eventually hypercoagulable states, developing increased risk for venous thromboembolism (VTE). Prophylactic anticoagulation can decrease this risk, but its initiation is frequently delayed for extended periods due to concerns for bleeding. To facilitate timely introduction of VTE chemoprophylaxis, we characterized the transition from hypo- to hypercoagulability and hypothesized that trauma-induced coagulopathy resolves within 24 hours after injury. METHODS Serial blood samples were collected prospectively from critically injured patients for 120 hours after arrival at an urban Level I trauma center. Extrinsic thromboelastometry maximum clot firmness was used to classify patients as hypocoagulable (HYPO, <49 mm), normocoagulable (NORM, 49-71 mm), or hypercoagulable (HYPER, >71 mm) at each time point. Changes in coagulability over hospital course, VTE occurrence, and timing of prophylaxis initiation were analyzed. RESULTS 898 patients (median Injury Severity Score, 13; mortality, 12%; VTE, 8%) were enrolled. Upon arrival, 3% were HYPO (90% NORM, 7% HYPER), which increased to 9% at 6 hours before down-trending. Ninety-seven percent were NORM by 24 hours, and 53% were HYPER at 120 hours. Median maximum clot firmness began in the NORM range, up-trended gradually, and entered the HYPER range at 120 hours. Patients with traumatic brain injury (TBI) followed a similar course and were not more HYPO at any time point than those without TBI. Failure to initiate prophylaxis by 72 hours was predicted by TBI and associated with VTE development (27% vs 16%, p < 0.05). CONCLUSIONS Regardless of injury pattern, trauma-induced coagulopathy largely resolves within 24 hours, after which hypercoagulability becomes increasingly more prevalent. Deferring initiation of chemoprophylaxis, which is often biased toward patients with intracranial injuries, is associated with VTE development. LEVEL OF EVIDENCE Prognostic study, level III; Therapeutic, level IV.
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Salem AM, Roh D, Kitagawa RS, Choi HA, Chang TR. Assessment and management of coagulopathy in neurocritical care. JOURNAL OF NEUROCRITICAL CARE 2019. [DOI: 10.18700/jnc.190086] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Baker JE, Niziolek GM, Elson NC, Pugh AM, Nomellini V, Makley AT, Pritts TA, Goodman MD. Optimizing Lower Extremity Duplex Ultrasound Screening After Traumatic Injury. J Surg Res 2019; 243:143-150. [PMID: 31176284 DOI: 10.1016/j.jss.2019.05.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/29/2019] [Accepted: 05/08/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND The risk assessment profile (RAP) score has been used to determine patients who would most benefit from lower extremity duplex ultrasound screening (LEDUS). We hypothesized that revising our LEDUS protocol to perform screening ultrasound examinations in patients with an RAP ≥8 within 48 h of admission would reduce the number of LEDUS performed without changing outcomes. METHODS A retrospective review was conducted on trauma patients admitted from July 1, 2014, to June 30, 2015, and July 1, 2016, to June 30, 2017. In 2014-2015, patients with an RAP score ≥5 underwent weekly LEDUS examinations starting on hospital day 4. In 2016-2017, the protocol was changed to start screening patients with an RAP score ≥8 by hospital day 2. Both protocols screened with weekly ultrasounds after the first examination. Demographic data, injury characteristics, LEDUS examination findings, chemoprophylaxis type, and venous thromboembolism incidence were collected. RESULTS A total of 602 patients underwent LEDUS examination in 2014-2015, whereas only 412 underwent LEDUS in 2016-2017. No significant difference was seen in the number of patients diagnosed with deep vein thrombosis (DVT) or pulmonary embolism. DVTs were most often identified on the first LEDUS examination in both cohorts. Of patients diagnosed with a DVT on an LEDUS examination, a significantly higher RAP score (12 versus 10), and a shorter time to first duplex (1 versus 3 d), and DVT diagnosis (2 versus 4 d) were observed in the 2016-2017 cohort. In patients diagnosed with a pulmonary embolism, no significant differences were demonstrated between cohorts. CONCLUSIONS Refinement of LEDUS protocols can decrease overutilization of hospital resources without compromising trauma patient outcomes.
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Affiliation(s)
- Jennifer E Baker
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Grace M Niziolek
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Nora C Elson
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Amanda M Pugh
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Vanessa Nomellini
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Amy T Makley
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Timothy A Pritts
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Michael D Goodman
- Department of Surgery, Section of General Surgery, University of Cincinnati, Cincinnati, Ohio.
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Cvirn G, Waha JE, Brix B, Rössler A, Jantscher A, Schlagenhauf A, Koestenberger M, Wonisch W, Wagner T, Goswami N. Coagulation changes induced by lower-body negative pressure in men and women. J Appl Physiol (1985) 2019; 126:1214-1222. [DOI: 10.1152/japplphysiol.00940.2018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
We investigated whether lower-body negative pressure (LBNP) application leads to coagulation activation in whole blood (WB) samples in healthy men and women. Twenty-four women and 21 men, all healthy young participants, with no histories of thrombotic disorders and not on medications, were included. LBNP was commenced at −10 mmHg and increased by −10 mmHg every 5 min until a maximum of −40 mmHg. Recovery up to 10 min was also monitored. Blood samples were collected at baseline, at end of LBNP, and end of recovery. Hemostatic profiling included comparing the effects of LBNP on coagulation values in both men and women using standard coagulation tests, calibrated automated thrombogram, thrombelastometry, impedance aggregometry, and markers of thrombin formation. LBNP led to coagulation activation determined in both plasma and WB samples. At baseline, women were hypercoagulable compared with men, as evidenced by their shorter “lag times” and higher thrombin peaks and by shorter “coagulation times” and “clot formation times.” Moreover, men were more susceptible to LBNP, as reflected in their elevated factor VIII levels and decreased lag times following LBNP. LBNP-induced coagulation activation was not accompanied by endothelial activation. Women appear to be relatively hypercoagulable compared with men, but men are more susceptible to coagulation changes during LBNP. The application of LBNP might be a useful future tool to identify individuals with an elevated risk for thrombosis, in subjects with or without history of thrombosis.NEW & NOTEWORTHY LBNP led to coagulation activation determined in both plasma and whole blood samples. At baseline, women were hypercoagulable compared with men. Men were, however, more susceptible to coagulation changes during LBNP. LBNP-induced coagulation activation was not accompanied by endothelial activation. The application of LBNP might be a useful future tool to identify individuals with an elevated risk for thrombosis, in subjects with or without history of thrombosis.
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Affiliation(s)
- Gerhard Cvirn
- Physiological Chemistry Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - James E. Waha
- Physiology Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Bianca Brix
- Physiology Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Andreas Rössler
- Physiology Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Andreas Jantscher
- Physiology Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Axel Schlagenhauf
- Department of Pediatric Cardiology, Medical University of Graz, Graz, Austria
| | | | - Willibald Wonisch
- Physiological Chemistry Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Thomas Wagner
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
| | - Nandu Goswami
- Physiology Division, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
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Prospective assessment of fibrinolysis in morbid obesity: tissue plasminogen activator resistance improves after bariatric surgery. Surg Obes Relat Dis 2019; 15:1153-1159. [PMID: 31128997 DOI: 10.1016/j.soard.2019.03.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND Morbid obesity is associated with an increased risk of thrombotic events, which has been attributed to increased thrombotic activity. Multiple mechanisms have been proposed to explain this increased risk, including an inflammatory state with upregulation of procoagulant and antifibrinolytic proteins. We therefore hypothesize that patients with morbid obesity are hypercoagulable and will revert to normal after bariatric surgery. OBJECTIVES To evaluate changes in the hypercoagulable state after bariatric surgery. SETTING University Hospital, Bariatric Center of Excellence, United States. METHODS Thromboelastography (TEG) data were collected on 72 subjects with morbid obesity, with 36 who had 6 months of follow-up after bariatric surgery. TEG data of 75 healthy subjects (HS) without obesity, recent trauma or surgery, acute infection, or chronic conditions (e.g., liver, cardiovascular, or kidney disease; cancer; diabetes; autoimmune or inflammatory disorders; and disorders of coagulation) were used for comparison. TEG was performed alone and with the addition of 75 and 150 ng/mL tissue plasminogen activator (tPA) to quantify fibrinolysis resistance (tPA-challenged TEG). RESULTS The bariatric surgery cohort had a median age of 40.5 years, a median body mass index of 44.6 kg/m2, and 90% female patients. Median body mass index reduced significantly 6 months post surgery but remained elevated compared with the HS group (31.4 versus 25.4 kg/m2, P < .0001). At 6 months post surgery, subjects had longer reaction time (mean difference, 1.3; P = .02), lower maximum amplitude (-2.4, P = .01), and increased fibrinolysis with low-dose (3.1, P < .0001) and high-dose tPA-challenged TEG (9, P < .0001). Compared with HS, the postsurgery TEG values were still more likely to be abnormal (all P < .05). CONCLUSIONS Patients with morbid obesity form stronger clots more rapidly and are more resistant to fibrinolysis than subjects without obesity. Bariatric surgery significantly improved the hypercoagulable profile and fibrinolysis resistance of morbid obesity.
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Sex-based differences in transfusion need after severe injury: Findings of the PROPPR study. Surgery 2019; 165:1122-1127. [PMID: 30871812 DOI: 10.1016/j.surg.2018.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/21/2018] [Accepted: 12/12/2018] [Indexed: 11/21/2022]
Abstract
BACKGROUND Women are underrepresented in trauma research, and aggregated results of clinical trials may mask effects that differ by sex. It is unclear whether women respond differently to severe hemorrhage compared with men. We sought to evaluate sex-based differences in outcomes after severe trauma with hemorrhage. METHODS We performed a secondary analysis of the Pragmatic Randomized Optimal Platelet and Plasma Ratios trial. Trauma patients predicted to require massive transfusion were randomized to a 1:1:1 vs 1:1:2 plasma to platelet to red blood cell transfusion ratio. Analysis was performed according to sex, controlling for clinical characteristics and transfusion arm. RESULTS A total of 134 women and 546 men were analyzed. In multivariable analysis, there was no difference in mortality at 24 hours (hazard ratio for women 0.64, 95% confidence interval 0.34-1.23, P = .18) or in time to hemostasis (hazard ratio 1.10, 95% confidence interval 0.84-1.42, P = .49) by sex. We observed no difference between sexes in volume of blood products transfused during active hemorrhage. However, after anatomic hemostasis, women received lower volumes of all products, with a 38% reduction in fresh frozen plasma (mean ratio 0.62 (95% confidence interval 0.43-0.89, P = .01), 49% reduction in platelets (mean ratio 0.51, 95% confidence interval 0.33-0.79, P < .01) and 49% reduction in volume of red blood cells (mean ratio 0.51, 95% confidence interval 0.33-0.79, P < .01). CONCLUSION Mortality and time to hemostasis of trauma patients with hemorrhage did not differ by sex. Although there was no difference in transfusion requirement during active hemorrhage, once hemostasis was achieved, women received fewer units of all blood products than men. Further research is required to determine whether women exhibit differences in coagulation during and after severe traumatic hemorrhage.
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Coleman JR, Moore EE, Samuels JM, Cohen MJ, Sauaia A, Sumislawski JJ, Ghasabyan A, Chandler JG, Banerjee A, Silliman CC, Peltz ED. Trauma Resuscitation Consideration: Sex Matters. J Am Coll Surg 2019; 228:760-768.e1. [PMID: 30677527 DOI: 10.1016/j.jamcollsurg.2019.01.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/31/2018] [Accepted: 01/07/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Sex dimorphisms in coagulation have been recognized, but whole blood assessment of these dimorphisms and their relationship to outcomes in trauma have not been investigated. This study characterizes the viscoelastic hemostatic profile of severely injured patients by sex, and examines how sex-specific coagulation differences affect clinical outcomes, specifically, massive transfusion (MT) and death. We hypothesized that severely injured females are more hypercoagulable and therefore, have lower rates of MT and mortality. STUDY DESIGN Hemostatic profiles and clinical outcomes from all trauma activation patients from 2 level I trauma centers were examined, with sex as an experimental variable. As part of a prospective study, whole blood was collected and thrombelastography (TEG) was performed. Coagulation profiles were compared between sexes, and association with MT and mortality were examined. Poisson regression with robust standard errors was performed. RESULTS Overall, 464 patients (23% female) were included. By TEG, females had a more hypercoagulable profile, with a higher angle (clot propagation) and maximum amplitude (MA, clot strength). Females were less likely to present with hyperfibrinolysis or prolonged activating clotting time than males. In the setting of depressed clot strength (abnormal MA), female sex conferred a survival benefit, and hyperfibrinolysis was associated with higher case-fatality rate in males. CONCLUSIONS Severely injured females have a more hypercoagulable profile than males. This hypercoagulable status conferred a protective effect against mortality in the setting of diminished clot strength. The mechanism behind these dimorphisms needs to be elucidated and may have treatment implications for sex-specific trauma resuscitation.
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Affiliation(s)
- Julia R Coleman
- Department of Surgery, University of Colorado-Denver, Aurora, CO
| | - Ernest E Moore
- Department of Surgery, University of Colorado-Denver, Aurora, CO; Department of Surgery, Ernest E Moore Shock Trauma Center at Denver Health Denver, CO
| | - Jason M Samuels
- Department of Surgery, University of Colorado-Denver, Aurora, CO
| | - Mitchell J Cohen
- Department of Surgery, Ernest E Moore Shock Trauma Center at Denver Health Denver, CO; Department of Surgery, San Francisco General Hospital, San Francisco, CA
| | - Angela Sauaia
- Department of Surgery, University of Colorado-Denver, Aurora, CO
| | | | - Arsen Ghasabyan
- Department of Surgery, Ernest E Moore Shock Trauma Center at Denver Health Denver, CO
| | - James G Chandler
- Department of Surgery, Ernest E Moore Shock Trauma Center at Denver Health Denver, CO
| | - Anirban Banerjee
- Department of Surgery, University of Colorado-Denver, Aurora, CO
| | - Christopher C Silliman
- Department of Hematology, Children's Hospital of Colorado, Aurora, CO; Vitalant Research Institute-Denver, Aurora, CO
| | - Erik D Peltz
- Department of Surgery, University of Colorado-Denver, Aurora, CO.
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Kamel Y, Hassanin A, Ahmed AR, Gad E, Afifi M, Khalil M, Görlinger K, Yassen K. Perioperative Thromboelastometry for Adult Living Donor Liver Transplant Recipients with a Tendency to Hypercoagulability: A Prospective Observational Cohort Study. TRANSFUSION MEDICINE AND HEMOTHERAPY : OFFIZIELLES ORGAN DER DEUTSCHEN GESELLSCHAFT FUR TRANSFUSIONSMEDIZIN UND IMMUNHAMATOLOGIE 2018. [PMID: 30574058 DOI: 10.1159/000489605.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Background Hypercoagulability can lead to serious thromboembolic events. The aim of this study was to assess the perioperative coagulation status in liver transplant recipients with a tendency to hypercoagulability. Methods In a prospective observational study (South African Cochrane Registry 201405000814129), 151 potential liver transplant recipients were screened for thrombophilic factors from October 2014 to June 2017, and 57 potential recipients fulfilled the inclusion criterion of presenting two or more of the following thrombophilic factors: low protein C, low protein S, low anti-thrombin, increased homocystein, increased antiphospholipid IgG/IgM antibodies, increased lupus anticoagulant, and positive Factor V Leiden mutation. Seven patients were excluded from the study because they fulfilled the exclusion criteria of cancelling the liver transplantation, oral anticoagulation, or intraoperative treatment with rFVIIa. Accordingly, 50 patients were included in the final analysis. Thromboelastometry (ROTEM) (EXTEM, INTEM and FIBTEM) and conventional coagulation tests (CCT) were performed preoperatively, during the anhepatic phase, post reperfusion, and on postoperative days (POD) 1, 3 and 7. ROTEM was used to guide blood product transfusion. Heparin was infused (60-180 U/kg/day) postoperatively for 3 days and then was replaced by low-molecular-weight heparin (20 mg/12 h). Results FIBTEM MCF significantly increased postoperatively above reference range on POD 7 despite normal fibrinogen plasma concentrations (p < 0.05). Both EXTEM and INTEM demonstrated significant changes with the phases of transplantation (p < 0.05), but with no intra- or postoperative hypercoagulability observed. INTEM CT (reference range, 100-240 s) normalized on POD 3 and 7 (196.1 ± 69.0 and 182.7 ± 63.8 s, respectively), despite prolonged aPTT (59.7 ± 18.7 and 46.4 ± 15.7 s, respectively; reference range, 20-40 s). Hepatic artery thrombosis (HAT) and portal vein thrombosis (PVT) were reported in 12.0% and 2.0%, respectively, mainly after critical care discharge and with high FIBTEM MCF values in 57% on POD 3 and 86% on POD 7. Receiver operating characteristics curve analyses of FIBTEM MCF were significant predictors for thromboembolic events with optimum cut-off, area under the curve and standard error on POD 3 (>23 mm, 0.779 and 0.097; p = 0.004) and POD 7 (>28 mm, 0.706 and 0.089; p = 0.020). Red blood cells (mean ± SD, 8.68 ± 5.81 units) were transfused in 76%, fresh frozen plasma (8.26 ± 4.14 units) in 62%, and cryoprecipitate (12.0 ± 3.68 units) in 28% of recipients. None of the recipients received intraoperative platelet transfusion or any postoperative transfusion. Main transplant indication was hepatitis C infection in 82%. 76% of recipients included in this highly selected patient population showed increased lupus anticoagulant, 2% increased antiphospholipid IgG/IgM antibodies, 20% increased homocysteine, 74% decreased anti-thrombin, 78% decreased protein C, 34% decreased protein S, and 24% a positive Factor V Leiden mutation. Overall 1-year survival was 62%. Conclusion A significant postoperative step-wise increase in FIBTEM MCF beyond the reference range was observed despite normal fibrinogen plasma concentrations, and FIBTEM MCF was a predictor for thromboembolic events in this study population, particularly after POD 3 and 7 on surgical wards when CCTs failed to detect this condition. However, the predictive value of FIBTEM MCF for postoperative HAT and PVT needs to be confirmed in a larger patient population. A ROTEM-guided anticoagulation regime needs to be developed and investigated in future studies.
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Affiliation(s)
- Yasmin Kamel
- Anesthesia Department of Liver Institute, Menoufia University, Sheeben El Kom, Egypt
| | - Ashraf Hassanin
- Anesthesia Department of Liver Institute, Menoufia University, Sheeben El Kom, Egypt
| | | | - Emad Gad
- Surgery Department of Liver Institute, Menoufia University, Sheeben El Kom, Egypt
| | - Mohamed Afifi
- Faculty of Medicine, Menoufia University, Sheeben El Kom, Egypt
| | - Magdy Khalil
- Anesthesia Department of Liver Institute, Menoufia University, Sheeben El Kom, Egypt
| | - Klaus Görlinger
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Essen, Germany.,Tem International GmbH, Munich, Germany
| | - Khaled Yassen
- Anesthesia Department of Liver Institute, Menoufia University, Sheeben El Kom, Egypt
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50
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Kobayashi LM, Brito A, Barmparas G, Bosarge P, Brown CV, Bukur M, Carrick MM, Catalano RD, Holly-Nicolas J, Inaba K, Kaminski S, Klein AL, Kopelman T, Ley EJ, Martinez EM, Moore FO, Murry J, Nirula R, Paul D, Quick J, Rivera O, Schreiber M, Coimbra R. Laboratory measures of coagulation among trauma patients on NOAs: results of the AAST-MIT. Trauma Surg Acute Care Open 2018; 3:e000231. [PMID: 30402564 PMCID: PMC6203140 DOI: 10.1136/tsaco-2018-000231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/11/2018] [Accepted: 09/15/2018] [Indexed: 12/22/2022] Open
Abstract
Background Warfarin is associated with poor outcomes after trauma, an effect correlated with elevations in the international normalized ratio (INR). In contrast, the novel oral anticoagulants (NOAs) have no validated laboratory measure to quantify coagulopathy. We sought to determine if use of NOAs was associated with elevated activated partial thromboplastin time (aPTT) or INR levels among trauma patients or increased clotting times on thromboelastography (TEG). Methods This was a post-hoc analysis of a prospective observational study across 16 trauma centers. Patients on dabigatran, rivaroxaban, or apixaban were included. Laboratory data were collected at admission and after reversal. Admission labs were compared between medication groups. Traditional measures of coagulopathy were compared with TEG results using Spearman's rank coefficient for correlation. Labs before and after reversal were also analyzed between medication groups. Results 182 patients were enrolled between June 2013 and July 2015: 50 on dabigatran, 123 on rivaroxaban, and 34 apixaban. INR values were mildly elevated among patients on dabigatran (median 1.3, IQR 1.1-1.4) and rivaroxaban (median 1.3, IQR 1.1-1.6) compared with apixaban (median 1.1, IQR 1.0-1.2). Patients on dabigatran had slightly higher than normal aPTT values (median 35, IQR 29.8-46.3), whereas those on rivaroxaban and apixaban did not. Fifty patients had TEG results. The median values for R, alpha, MA and lysis were normal for all groups. Prothrombin time (PT) and aPTT had a high correlation in all groups (dabigatran p=0.0005, rivaroxaban p<0.0001, and apixaban p<0.0001). aPTT correlated with the R value on TEG in patients on dabigatran (p=0.0094) and rivaroxaban (p=0.0028) but not apixaban (p=0.2532). Reversal occurred in 14%, 25%, and 18% of dabigatran, rivaroxaban, and apixaban patients, respectively. Both traditional measures of coagulopathy and TEG remained within normal limits after reversal. Discussion Neither traditional measures of coagulation nor TEG were able to detect coagulopathy in patients on NOAs. Level of evidence Level IV.
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Affiliation(s)
- Leslie M Kobayashi
- Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, Department of Surgery, University of California San Diego, San Diego, California, USA
| | - Alexandra Brito
- Department of Surgery, University of California San Diego, San Diego, California, USA
| | - Galinos Barmparas
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Patrick Bosarge
- Division of Acute Care Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Carlos V Brown
- Dell Medical School, University of Texas at Austin, Austin, Texas, USA
| | - Marko Bukur
- Division of Trauma, Emergency Surgery, and Surgical Critical Care, Surgical Intensive Care Unit Bellevue Hospital Center, New York, USA
| | - Matthew M Carrick
- University of North Texas Health Science Center, Fort Worth, Texas, USA
| | | | - Jan Holly-Nicolas
- Department of Surgery, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Kenji Inaba
- Division of Trauma & Critical Care, University of Southern California, Los Angeles, California, USA
| | - Stephen Kaminski
- Department of General Surgery and Surgical Critical Care, Santa Barbara Cottage Hospital, Santa Barbara, California, USA
| | - Amanda L Klein
- Department of Surgery, Dell Medical School, University of Texas at Austin, Austin, Texas, USA
| | - Tammy Kopelman
- Division of Burns, Trauma, and Surgical Critical Care, University of Arizona Medical School-Phoenix Campus, Phoenix, Arizona, USA
| | - Eric J Ley
- Department of General Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Ericca M Martinez
- Chandler Regional Medical Center, Grand Canyon University, Phoenix, Arizona, USA
| | - Forrest O Moore
- Department of General Surgery, Trauma and Surgical Critical Care, Chandler Regional Medical Center, University of Arizona College of Medicine, Chandler, Arizona, USA
| | - Jason Murry
- Department of General Surgery Trauma Services, East Texas Medical Center, Tyler, Texas, USA
| | - Raminder Nirula
- Department of General Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Douglas Paul
- Division of Trauma, Critical Care and Acute Care Surgery, Kettering Medical Center, Kettering, Ohio, USA
| | - Jacob Quick
- Division of Acute Care Surgery, University of Missouri, Columbia, Missouri, USA
| | - Omar Rivera
- Division of Trauma and Critical Care, University of Southern California, Los Angeles, California, USA
| | - Martin Schreiber
- Division of Trauma, Critical Care & Acute Care Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Raul Coimbra
- Department of General Surgery, Riverside University Health System Medical Center, Loma Linda University School of Medicine, Moreno Valley, California, USA
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