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Sama S, Cho S, Rehni AK, Jy W, Dave KR. Red cell microparticles produced using high-pressure extrusion enhance both primary and secondary hemostasis. Pharmacol Rep 2025; 77:508-516. [PMID: 39775702 PMCID: PMC11911262 DOI: 10.1007/s43440-024-00688-0] [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: 10/04/2024] [Revised: 12/06/2024] [Accepted: 12/10/2024] [Indexed: 01/11/2025]
Abstract
BACKGROUND Current therapies to treat excessive bleeding are associated with significant complications, which may outweigh their benefits. Red blood cell-derived microparticles (RMPs) are a promising hemostatic agent. Previous studies demonstrated that they reduce bleeding in animal models, correct coagulation defects in patient blood, and have an excellent safety profile. However, their exact mechanism of action is not known. We investigated the potential role of RMPs on primary and secondary hemostasis. METHODS To evaluate the effects of RMPs, prepared using high-pressure extrusion, on primary hemostasis, we employed platelet aggregometry with platelet inhibitors, eptifibatide, and ticagrelor, with and without RMPs. To evaluate their effects on secondary hemostasis, we employed thromboelastography with plasma deficient in factors VII, VIII, IX, XI, and XII with and without RMPs. RESULTS We found that RMPs significantly increased collagen-induced platelet aggregation. However, there were no significant differences with and without RMP in the presence of the platelet inhibitors, indicating that RMPs may work through these receptors, either directly or indirectly. For secondary hemostasis, RMPs significantly decreased clotting times for plasma deficient in factors VII, VIII, IX, and XI but not in XII. CONCLUSIONS Our results indicate that RMPs enhance primary hemostasis and both pathways of secondary hemostasis.
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Affiliation(s)
- Snigdha Sama
- Department of Neurology, Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, 1600 NW 10th Ave RMSB #7046, Miami, FL, 33136, USA
| | - Sunjoo Cho
- Department of Neurology, Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, 1600 NW 10th Ave RMSB #7046, Miami, FL, 33136, USA
| | - Ashish K Rehni
- Department of Neurology, Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, 1600 NW 10th Ave RMSB #7046, Miami, FL, 33136, USA
| | - Wenche Jy
- The Wallace H. Coulter Platelet Laboratory, Division of Hematology/Oncology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Kunjan R Dave
- Department of Neurology, Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, 1600 NW 10th Ave RMSB #7046, Miami, FL, 33136, USA.
- Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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To KW, Hsu SY, Yu CY, Tsai YC, Lin YC, Hsieh CH. Correlation Between Low Platelet-to-Lymphocyte Ratio and High Mortality Rates in Adult Trauma Patients With Moderate-to-Severe Brain Injuries. Emerg Med Int 2024; 2024:8099416. [PMID: 39734657 PMCID: PMC11671657 DOI: 10.1155/emmi/8099416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 10/12/2024] [Indexed: 12/31/2024] Open
Abstract
Background: White blood cell (WBC) subtypes reflect immune and inflammatory conditions in patients. This study aimed to examine the association between the ratio of platelets to WBC subtypes and mortality outcomes in patients with moderate-to-severe traumatic brain injury (TBI). Method: The Trauma Registry System of the hospital was retrospectively reviewed to gather medical records of 2397 adult patients who were hospitalized from 2009 to 2020 and had moderate-to-severe TBI with a head abbreviated injury scale (AIS) score of 3 or higher. The monocyte-to-lymphocyte ratio (MLR), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR) were compared between the survivors (n = 2, 138) and nonsurvivors (n = 259). A multivariate logistic regression analysis was performed to investigate the independent effects of the univariate prognostic factors on mortality outcomes. The survival variations among the PLR subgroups were evaluated by the Kaplan-Meier survival analysis including a log-rank test. Results: The PLR of the deceased patients was considerably lower than that of the survivors (129.5 ± 130.1 vs. 153.2 ± 102.1, p < 0.001). However, no significant differences were observed in monocyte and neutrophil counts, MLR, or NLR between the deceased and survivor groups. A lower PLR was recognized as an independent risk factor for mortality (odds ratio: 1.26, 95% confidence interval: 1.06-1.51, p=0.010). The receiver operating characteristic (ROC) established PLR as the most strong predictor among the three ratios (area under the ROC curve = 0.627, sensitivity = 0.846, and specificity = 0.382, according to the cut-off value = 68.57). When the patient groups were divided by PLR quartile, the Kaplan-Meier analysis showed significantly worse survival in the lowest PLR quartile group (< 83.1) compared with the highest quartile group (≥ 189.1) (p < 0.001). Conclusion: Lower PLR is associated with greater mortality in adult patients with moderate-to-severe TBI. PLR may be a valuable measure for classifying mortality risk in this population.
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Affiliation(s)
- Kang-Wei To
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Shiun-Yuan Hsu
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, Kaohsiung 83301, Taiwan
| | - Chia-Ying Yu
- Department of Anatomic Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Yu-Chin Tsai
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - You-Cheng Lin
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Ching-Hua Hsieh
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, Kaohsiung 83301, Taiwan
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Hogan ME, Liu Z, Stansbury LG, Vavilala MS, Hess JR, Tsang HC. Variations in emergency hemorrhage panel turnaround times in 2 major medical centers using the same laboratory methods. Am J Clin Pathol 2024; 162:529-534. [PMID: 38884115 DOI: 10.1093/ajcp/aqae071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024] Open
Abstract
OBJECTIVES Demand for rapid coagulation testing for massive transfusion events led to development of an emergency hemorrhage panel (EHP; hemoglobin, platelet count, prothrombin time/international normalized ratio, and fibrinogen), with laboratory turnaround time (TAT) of less than 20 minutes. Ten years on, we asked if current laboratory practices were meeting that TAT goal and differences were evident in TAT between the 2 major institutions in our system. METHODS We identified EHPs ordered at our 2 largest hospitals, February 2, 2021, to July 17, 2022, comparing order to specimen draw time, specimen draw to specimen received time, laboratory analytic time, and total TAT results from emergency department and operating room. Site 1 houses a level I trauma center; site 2 includes tertiary care, transplant, and obstetrics services. RESULTS In total, 1137 EHPs were recorded in our study period. Laboratory TAT was significantly faster at site 1 (~14 vs ~27 minutes, P < .01). Average laboratory TAT was under 20 minutes at site 1 but only for 50% of specimens at site 2. Outlier specimens were collection delays at site 1 and specimen processing delays at site 2. CONCLUSIONS The EHP can be performed as rapidly as described. However, compromises in laboratory location, available personnel, and processing differences can degrade performance.
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Affiliation(s)
| | - Zhinan Liu
- Department of Laboratory Medicine and Pathology
- Harborview Injury Prevention Research Center, Harborview Medical Center, Seattle, WA, US
| | - Lynn G Stansbury
- Department of Laboratory Medicine and Pathology
- Harborview Injury Prevention Research Center, Harborview Medical Center, Seattle, WA, US
- Department of Anesthesia and Pain Medicine
| | - Monica S Vavilala
- Department of Anesthesia and Pain Medicine
- Department of Pediatrics, University of Washington, Seattle, WA, US
| | - John R Hess
- Department of Laboratory Medicine and Pathology
- Harborview Injury Prevention Research Center, Harborview Medical Center, Seattle, WA, US
| | - Hamilton C Tsang
- Department of Laboratory Medicine and Pathology
- Harborview Injury Prevention Research Center, Harborview Medical Center, Seattle, WA, US
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Jamali B, Nouri S, Amidi S. Local and Systemic Hemostatic Agents: A Comprehensive Review. Cureus 2024; 16:e72312. [PMID: 39583426 PMCID: PMC11585330 DOI: 10.7759/cureus.72312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2024] [Indexed: 11/26/2024] Open
Abstract
Traumatic hemorrhage is the leading preventable cause of death worldwide. Systemic administration of hemostatic agents requires trained personnel and preparation, limiting their use in combat environments and prehospital settings. However, local administration of hemostatic agents may ameliorate these challenges. Currently available hemostatic products are limited by risk of infection, immunogenicity, tissue damage, limited usage and efficacy, high costs, short shelf life, and storage requirements under specific conditions. Future studies should be considered to overcome these limitations and develop effective, multifunctional hemostatic materials for widespread usage. In this review, we will provide an overview of the most commonly used systemic and local hemostatic agents in hemorrhage control.
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Affiliation(s)
- Bardia Jamali
- Research Center for Health Management in Mass Gathering, Red Crescent Society of the Islamic Republic of Iran, Tehran, IRN
- Research Center for Emergency and Disaster Resilience, Red Crescent Society of Islamic Republic of Iran, Tehran, IRN
| | - Saeed Nouri
- Research Center for Health Management in Mass Gathering, Red Crescent Society of the Islamic Republic of Iran, Tehran, IRN
- Research Center for Emergency and Disaster Resilience, Red Crescent Society of Islamic Republic of Iran, Tehran, IRN
| | - Salimeh Amidi
- Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, IRN
- Research Center for Emergency and Disaster Resilience, Red Crescent Society of Islamic Republic of Iran, Tehran, IRN
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Mayor J, Gräff P, Birgel V, Clausen JD, Omar-Pacha T, Aktas G, Sehmisch S, Mommsen P. Do admission glucose levels independently predict coagulopathy in multiple trauma patients? A retrospective cohort analysis. Eur J Trauma Emerg Surg 2024; 50:1431-1438. [PMID: 38353719 PMCID: PMC11458746 DOI: 10.1007/s00068-023-02405-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 11/13/2023] [Indexed: 10/08/2024]
Abstract
BACKGROUND Coagulopathy is prevalent in multiple trauma patients and worsens bleeding complications, leading to higher morbidity and mortality rates. Hyperglycemia upon admission predicts hemorrhagic shock and mortality in severely injured patients. This study aimed to assess admission glucose levels as an independent prognostic factor for coagulopathy in multiply injured patients. METHODS This retrospective cohort study observed multiple trauma patients treated at a level I trauma center between January 1, 2005, and December 31, 2020. Coagulopathy was defined as an international normalized ratio (INR) > 1.4 and/or activated thromboplastin time (APTT) > 40 s. Analysis of variance compared clinical and laboratory parameters of patients with and without coagulopathy. Receiver-operating-characteristic (ROC) and multivariate logistic regression analyses identified risk factors associated with coagulopathy. RESULTS The study included 913 patients, of whom 188 (20%) had coagulopathy at admission. Coagulopathy patients had higher mortality than those without (26% vs. 5.0%, p < 0.001). Mean glucose level in coagulopathy patients was 10.09 mmol/L, significantly higher than 7.97 mmol/L in non-coagulopathy patients (p < 0.001). Admission glucose showed an area under the curve (AUC) of 0.64 (95% CI [0.59-0.69], p < 0.001) with an optimal cut-off point of 12.35 mmol/L. After adjusting for other factors, patients with high admission glucose had a 1.99-fold risk of developing coagulopathy (95% CI 1.07-3.60). Other laboratory parameters associated with coagulopathy included haemoglobin, bicarbonate (HCO3), and lactate levels. CONCLUSION This study emphasizes the significance of admission blood glucose as an independent predictor of coagulopathy. Monitoring hyperglycemia can aid in identifying high-risk patients.
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Affiliation(s)
- Jorge Mayor
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany.
| | - Pascal Gräff
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Vera Birgel
- Hannover Medical School, Institute for Epidemiology, Social Medicine and Health Systems Research, Carl- Neuberg-Straße 1, 30625, Hannover, Germany
| | - Jan-Dierk Clausen
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Tarek Omar-Pacha
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Gökmen Aktas
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Stephan Sehmisch
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Philipp Mommsen
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
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Buseman M, Blong AE, Yuan L, Mochel JP, Walton RAL. Retrospective evaluation of admission total plasma protein as a predictor of red blood cell transfusion requirement in dogs diagnosed with traumatic and nontraumatic hemoabdomen: 90 dogs (2009-2019). J Vet Emerg Crit Care (San Antonio) 2024; 34:76-80. [PMID: 37961036 DOI: 10.1111/vec.13343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 08/06/2022] [Accepted: 08/22/2022] [Indexed: 11/15/2023]
Abstract
OBJECTIVE To evaluate the association of admission total plasma protein (TPP) and the administration of red blood cell transfusions in dogs with diagnosed hemoabdomen. To secondarily evaluate additional point-of-care parameters associated with red blood cell transfusion administration. DESIGN Retrospective study between 2009 and 2019. SETTING University veterinary teaching hospital. ANIMALS Ninety dogs admitted to a university veterinary teaching hospital after a diagnosis of traumatic or nontraumatic hemoabdomen (NTH). MEASUREMENTS AND MAIN RESULTS Medical records were retrospectively reviewed; signalment, point-of-care diagnostics, and transfusion administration information was recorded. A total of 47 dogs (traumatic hemoabdomen 11/26; NTH 36/64) received packed red blood cell transfusions. For each 1 g/dL unit decrease in TPP, dogs had an increased odds ratio (OR) of 2.14 (95% confidence interval [CI]: 1.44-3.40, P < 0.001) of receiving a red blood cell transfusion. Dogs diagnosed with NTH were more likely to receive a red blood cell transfusion than dogs with a traumatic hemoabdomen (OR: 2.78, 95% CI: 1.11-7.141, P = 0.03). Lower PCV values (OR: 1.08, 95% CI: 1.04-1.12, P < 0.001), bicarbonate values (OR: 1.3, 95% CI: 1.09-1.56, P = 0.003), and base excess (OR: 1.27, 95% CI: 1.1-1.49, P = 0.003) were associated with a higher likelihood of red blood cell transfusion. Additionally, higher lactate (OR: 1.35, 95% CI: 1.16-1.63, P < 0.001) and Acute Patient Physiologic and Laboratory Evaluation (APPLE)fast scores (OR: 1.10, 95% CI: 1.04-1.17, P < 0.001) were associated with increased red blood cell transfusion administration. CONCLUSIONS Low admission TPP, independent of low PCV, was associated with red blood cell transfusions regardless of underlying cause. For each 1 g/dL unit decrease in TPP on presentation, dogs were approximately 2 times more likely to receive a red blood cell transfusion during hospitalization. Other factors that were associated with increased transfusion administration included presenting PCV, PCV/TPP ratio, bicarbonate, base excess, lactate, and APPLEfast scores.
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Affiliation(s)
- Miranda Buseman
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - April E Blong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Lingnan Yuan
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Jonathan P Mochel
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Rebecca A L Walton
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
- VCA West Los Angeles, VCA West Los Angeles Animal Hospital, CA, USA
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Liu Z, Xu Y, Su H, Jing X, Wang D, Li S, Chen Y, Guan H, Meng L. Chitosan-based hemostatic sponges as new generation hemostatic materials for uncontrolled bleeding emergency: Modification, composition, and applications. Carbohydr Polym 2023; 311:120780. [PMID: 37028883 DOI: 10.1016/j.carbpol.2023.120780] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/12/2023] [Accepted: 02/27/2023] [Indexed: 03/07/2023]
Abstract
The choice of hemostatic technique is a curial concern for surgery and as first-aid treatment in combat. To treat uncontrolled bleeding in complex wound environments, chitosan-based hemostatic sponges have attracted significant attention in recent years because of the excellent biocompatibility, degradability, hemostasis and antibacterial properties of chitosan and their unique sponge-like morphology for high fluid absorption rate and priority aggregation of blood cells/platelets to achieve rapid hemostasis. In this review, we provide a historical perspective on the use of chitosan hemostatic sponges as the new generation of hemostatic materials for uncontrolled bleeding emergencies in complex wounds. We summarize the modification of chitosan, review the current status of preparation protocols of chitosan sponges based on various composite systems, and highlight the recent achievements on the detailed breakdown of the existing chitosan sponges to present the relationship between their composition, physical properties, and hemostatic capacity. Finally, the future opportunities and challenges of chitosan hemostatic sponges are also proposed.
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Khanna P, Sinha C, Singh AK, Kumar A, Sarkar S. The role of point of care thromboelastography (TEG) and thromboelastometry (ROTEM) in management of Primary postpartum haemorrhage: A meta-analysis and systematic review. Saudi J Anaesth 2023; 17:23-32. [PMID: 37032697 PMCID: PMC10077780 DOI: 10.4103/sja.sja_529_22] [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: 07/18/2022] [Revised: 09/07/2022] [Accepted: 09/11/2022] [Indexed: 12/24/2022] Open
Abstract
Background The utility of instantaneous evaluation of coagulation during primary postpartum haemorrhage (PPH) is paramount in the context of empirical blood product transfusion-related risk of dilutional and consumptive coagulopathy and circulatory overload. Methods A profound screening of electronic databases till August 15, 2022 was carried out after being enlisted in PROSPERO (CRD42021275514). Randomized control studies, comparative cohort studies, and cross-sectional studies comparing point-of-care viscoelastic test guided blood product transfusion with empirical transfusion in patients with PPH were included. Results We retrieved five studies, with a total of 1914 parturient with PPH. Patients receiving transfusion based upon point of care viscoelastic tests had lesser risk of having emergency hysterectomy (Odds ratio (OR) = 0.55, 95% CI 0.32-0.95, I2 = 7%), transfusion-associated circulatory overload (TACO) (OR = 0.03, 95% CI 0.00-0.50), reduced transfusion of fresh frozen plasma (OR = 0.07, 95% CI 0.04-0.14, I2 = 89%), platelets (OR = 0.51, 95% CI 0.28-0.91, I2 = 89%), packed red blood cell transfusion (OR = 0.70, 95% CI 0.55-0.88, I2 = 89%), and had better cost-effective treatment [Mean difference (MD) = -357.5, 95% CI - 567.75 to -147.25, I2 = 93%] than patient received empirical transfusion. However, there was no significant difference in the requirement of ICU admissions (OR = 0.77, 95% CI = 0.46-1.29, I2 = 82%). No mortality was detected across the studies. Conclusions Point of care viscoelastic assessment guided transfusion in PPH confederates with reduced morbidity. Nevertheless, more studies on the triggering values for transfusion, long-term survival, and cost-benefit in patients with PPH are warranted to establish its utility.
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Affiliation(s)
- Puneet Khanna
- Department of Anaesthesia, Pain Medicine and Critical Care, AIIMS, New Delhi, India
| | - Chandni Sinha
- Department of Anesthesia, AIIMS, Patna, Bihar, India
| | - Akhil K. Singh
- Department of Anaesthesia, Pain Medicine and Critical Care, AIIMS, New Delhi, India
| | - Ajeet Kumar
- Department of Anesthesia, AIIMS, Patna, Bihar, India
| | - Soumya Sarkar
- Department of Anesthesia, and Critical Care, AIIMS, Bhubaneswar, Odisha, India
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Vigstedt M, Baksaas-Aasen K, Henriksen HH, Maegele M, Stanworth S, Juffermans NP, Kolstadbråten KM, Naess PA, Brohi K, Gaarder C, Stensballe J, Johansson PI. Thrombelastography (TEG ® 6s) early amplitudes predict maximum amplitude in severely injured trauma patients. Scandinavian Journal of Clinical and Laboratory Investigation 2022; 82:508-512. [PMID: 36073613 DOI: 10.1080/00365513.2022.2119599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Severely injured trauma patients are often coagulopathic and early hemostatic resuscitation is essential. Previous studies have revealed linear relationships between thrombelastography (TEG®) five- and ten-min amplitudes (A5 and A10), and maximum amplitude (MA), using TEG® 5000 technology. We aimed to investigate the performance of A5 and A10 in predicting low MA in severely injured trauma patients and identify optimal cut-off values for hemostatic intervention based on early amplitudes, using the cartridge-based TEG® 6s technology. Adult trauma patients with hemorrhagic shock were included in the iTACTIC randomized controlled trial at six European Level I trauma centers between 2016 and 2018. After admission, patients were randomized to hemostatic therapy guided by conventional coagulation tests (CCT) or viscoelastic hemostatic assays (VHA). Patients with available admission-TEG® 6s data were included in the analysis, regardless of treatment allocation. Low MA was defined as <55 mm for Kaolin TEG® and RapidTEG®, and <17 mm for TEG® functional fibrinogen (FF). One hundred eighty-seven patients were included. Median time to MA was 20 (Kaolin TEG®), 21 (RapidTEG®) and 12 (TEG® FF) min. For Kaolin TEG®, the optimal Youden index (YI) was at A5 < 36 mm (100/93% sensitivity/specificity) and A10 < 47 mm (100/96% sensitivity/specificity). RapidTEG® optimal YI was at A5 < 34 mm (98/92% sensitivity/specificity) and A10 < 45 mm (96/95% sensitivity/specificity). TEG® FF optimal YI was at A5 < 12 mm (97/93% sensitivity/specificity) and A10 < 15 mm (97/99% sensitivity/specificity). In summary, we found that TEG® 6s early amplitudes were sensitive and specific predictors of MA in severely injured trauma patients. Intervening on early amplitudes can save valuable time in hemostatic resuscitation.
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Affiliation(s)
- Martin Vigstedt
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | | | - Hanne H Henriksen
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Marc Maegele
- Cologne-Merheim Medical Centre, University of Witten/Herdecke, Cologne, Germany
| | - Simon Stanworth
- Oxford University Hospital NHS Trust, Oxford, UK.,NHS Blood and Transplant, Bristol, UK
| | - Nicole P Juffermans
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | | | - Pål A Naess
- Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Karim Brohi
- Centre for Trauma Sciences, Queen Mary University of London, London, UK
| | | | - Jakob Stensballe
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Anaesthesiology, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Pär I Johansson
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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10
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Rausch MK, Parekh SH, Dortdivanlioglu B, Rosales AM. Synthetic hydrogels as blood clot mimicking wound healing materials. PROGRESS IN BIOMEDICAL ENGINEERING (BRISTOL, ENGLAND) 2021; 3:042006. [PMID: 35822083 PMCID: PMC9273113 DOI: 10.1088/2516-1091/ac23a4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Excessive bleeding-or hemorrhage-causes millions of civilian and non-civilian casualties every year. Additionally, wound sequelae, such as infections, are a significant source of chronic morbidity, even if the initial bleeding is successfully stopped. To treat acute and chronic wounds, numerous wound healing materials have been identified, tested, and adopted. Among them are topical dressings, such as gauzes, as well as natural and biomimetic materials. However, none of these materials successfully mimic the complex and dynamic properties of the body's own wound healing material: the blood clot. Specifically, blood clots exhibit complex mechanical and biochemical properties that vary across spatial and temporal scales to guide the wound healing response, which make them the ideal wound healing material. In this manuscript, we review blood clots' complex mechanical and biochemical properties, review current wound healing materials, and identify opportunities where new materials can provide additional functionality, with a specific focus on hydrogels. We highlight recent developments in synthetic hydrogels that make them capable of mimicking a larger subset of blood clot features: as plugs and as stimuli for tissue repair. We conclude that future hydrogel materials designed to mimic blood clot biochemistry, mechanics, and architecture can be combined with exciting platelet-like particles to serve as hemostats that also promote the biological wound healing response. Thus, we believe synthetic hydrogels are ideal candidates to address the clear need for better wound healing materials.
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Affiliation(s)
- Manuel K. Rausch
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States of America
- Department of Aerospace Engineering & Engineering Mechanics, University of Texas at Austin, Austin, TX 78712, United States of America
- Oden Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX 78712, United States of America
| | - Sapun H. Parekh
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States of America
| | - Berkin Dortdivanlioglu
- Oden Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX 78712, United States of America
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, TX 78712, United States of America
| | - Adrianne M. Rosales
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, United States of America
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11
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Association of Platelets and White Blood Cells Subtypes with Trauma Patients' Mortality Outcome in the Intensive Care Unit. Healthcare (Basel) 2021; 9:healthcare9080942. [PMID: 34442077 PMCID: PMC8391175 DOI: 10.3390/healthcare9080942] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 12/20/2022] Open
Abstract
Background: White blood cell (WBC) subtypes have been suggested to reflect patients’ immune-inflammatory status. Furthermore, the derived ratio of platelets and WBC subtypes, including monocyte-to-lymphocyte ratio (MLR), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR), is proposed to be associated with patient outcome. Therefore, this study aimed to identify the association of platelets and white blood cells subtypes with the mortality outcome of trauma patients in the intensive care unit (ICU). Method: The medical information from 2854 adult trauma patients admitted to the ICU between 1 January 2009 and 31 December 2019 were retrospectively retrieved from the Trauma Registry System and classified into two groups: the survivors group (n = 2524) and the death group (n = 330). The levels of monocytes, neutrophils, lymphocytes, platelets, and blood-drawn laboratory data detected upon patient arrival to the emergency room and the derived MLR, NLR, and PLR were calculated. Multivariate logistic regression analysis was used to determine the independent effects of univariate predictive variables on mortality occurrence. Result: The results revealed the patients who died had significantly lower platelet counts (175,842 ± 61,713 vs. 206,890 ± 69,006/μL, p < 0.001) but higher levels of lymphocytes (2458 ± 1940 vs. 1971 ± 1453/μL, p < 0.001) than the surviving patients. However, monocyte and neutrophil levels were not significantly different between the death and survivor groups. Moreover, dead patients had a significantly lower PLR than survivors (124.3 ± 110.3 vs. 150.6 ± 106.5, p < 0.001). However, there was no significant difference in MLR or NLR between the dead patients and the survivors. Multivariate logistic regression revealed that male gender, old age, pre-existing hypertension, coronary artery disease and end-stage renal disease, lower Glasgow Coma Scale (GCS), higher Injury Severity Score (ISS), higher level of lymphocytes and lower level of red blood cells and platelets, longer activated partial thromboplastin time (aPTT), and lower level of PLR were independent risk factors associated with higher odds of trauma patient mortality outcome in the ICU. Conclusion: This study revealed that a higher lymphocyte count, lower platelet count, and a lower PLR were associated with higher risk of death in ICU trauma patients.
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Zeng X, Fang L, Peng Y, Zhang Y, Li X, Wang Z, Zhang B, Cao Q, Hu X. A multicenter reference interval study of thromboelastography in the Chinese adult population. Thromb Res 2020; 195:180-186. [PMID: 32711234 DOI: 10.1016/j.thromres.2020.07.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/07/2020] [Accepted: 07/07/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Imprecise reference intervals (RIs) adversely impact the determination of the need for blood transfusion and clinical diagnosis and treatment of coagulopathy. However, there are few RI studies of thromboelastography (TEG) based on a standard protocol. The present multicenter study aimed to establish RIs for the adult Chinese population. METHODS Healthy participants were recruited from 6 medical centers by non-probability sampling. Blood samples were subjected to laboratory TEG analysis. The Ichihara method, 2-level nested analysis of variance (ANOVA) (2N-ANOVA), and the latent abnormal values exclusion (LAVE) were used to define the RIs following recommendations of the Clinical and Laboratory Standards Institute and International Federation of Clinical Chemistry and Laboratory Medicine, Committee on Reference Intervals and Decision Limits. Multiple regression analysis was performed to explore sources of variation. RESULTS A total of 507 healthy participants were enrolled into the study cohort. Twenty-five individuals with potential coagulopathy were secondarily excluded by LAVE. Smoking was related to reaction time, α angle, and coagulation index in the TEG test (P < 0.05). 2N-ANOVA revealed that the RIs of all 5 test items of TEG needed to be partitioned by age and sex. Finally, TEG RIs were derived both parametrically and nonparametrically for males or females and different age Groups, respectively. CONCLUSIONS TEG RIs were established for the adult Chinese population using up-to-date methodology. The results will provide a useful and essential comparator for patients in the assessment of coagulation state, goal-directed blood transfusion therapy, and monitoring of the pharmacodynamic effects of anticoagulant drugs.
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Affiliation(s)
- Xianfei Zeng
- Department of Laboratory Medicine, Shaanxi Corps Hospital, Chinese People's Armed Police Forces, Xi'an 710054, China; School of Medicine, Northwest University, Xi'an 710069, China; The National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an 710069, China
| | - Le Fang
- Department of Laboratory Medicine, 521 Hospital of Ordnance Industry, Xi'an 710065, China
| | - Yongping Peng
- Department of Transfusion Medicine, Xi'an Aerospace General Hospital, Xi'an 710100, China
| | - Yangmin Zhang
- Department of Transfusion Medicine, Xi'an Central Hospital, Xi'an 710003, China
| | - Xiaoyan Li
- Department of Transfusion Medicine, Baoji Central Hospital, Baoji 721008, China
| | - Zhaolong Wang
- Department of Transfusion Medicine, Xi'an Central Hospital, Xi'an 710003, China
| | - Baoping Zhang
- Department of Transfusion Medicine, Xijing Hospital, Xi'an 710032, Fourth Military Medical University, China
| | - Qian Cao
- Department of Laboratory Medicine, Shaanxi Corps Hospital, Chinese People's Armed Police Forces, Xi'an 710054, China
| | - Xingbin Hu
- Department of Transfusion Medicine, Xijing Hospital, Xi'an 710032, Fourth Military Medical University, China.
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The Use of Tranexamic Acid (TXA) for the Management of Hemorrhage in Trauma Patients in the Prehospital Environment: Literature Review and Descriptive Analysis of Principal Themes. Shock 2020; 53:277-283. [DOI: 10.1097/shk.0000000000001389] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Reverse shock index multiplied by Glasgow Coma Scale (rSIG) predicts mortality in severe trauma patients with head injury. Sci Rep 2020; 10:2095. [PMID: 32034233 PMCID: PMC7005840 DOI: 10.1038/s41598-020-59044-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/22/2020] [Indexed: 11/09/2022] Open
Abstract
The reverse shock index (rSI), a ratio of systolic blood pressure (SBP) to heart rate (HR), is used to identify prognosis in trauma patients. Multiplying rSI by Glasgow Coma Scale (rSIG) can possibly predict better in-hospital mortality in patients with trauma. However, rSIG has never been used to evaluate the mortality risk in adult severe trauma patients (Injury Severity Score [ISS] ≥ 16) with head injury (head Abbreviated Injury Scale [AIS] ≥ 2) in the emergency department (ED). This retrospective case control study recruited adult severe trauma patients (ISS ≥ 16) with head injury (head AIS ≥ 2) who presented to the ED of two major trauma centers between January 01, 2014 and May 31, 2017. Demographic data, vital signs, ISS scores, injury mechanisms, laboratory data, managements, and outcomes were included for the analysis. Logistic regression and receiver operating characteristic analysis were used to evaluate the accuracy of rSIG score in predicting in-hospital mortality. In total, 438 patients (mean age: 56.48 years; 68.5% were males) were included in this study. In-hospital mortality occurred in 24.7% patients. The median (interquartile range) ISS score was 20 (17-26). Patients with rSIG ≤ 14 had seven-fold increased risks of mortality than those without rSIG ≤ 14 (odds ratio: 7.64; 95% confidence interval: 4.69-12.42). Hosmer-Lemeshow goodness-of-fit test and area under the curve values for rSIG score were 0.29 and 0.76, respectively. The sensitivity, specificity, positive predictive value, and negative predictive values of rSIG ≤ 14 were 0.71, 0.75, 0.49, and 0.89, respectively. The rSIG score is a prompt and simple tool to predict in-hospital mortality among adult severe trauma patients with head injury.
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15
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A novel protocol to maintain continuous access to thawed plasma at a rural trauma center. J Trauma Acute Care Surg 2019; 88:148-152. [DOI: 10.1097/ta.0000000000002472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Choy KT, Hartslief M. Successful ROTEM-guided transfusion therapy in a case of rural paediatric trauma. BMJ Case Rep 2019; 12:e229508. [PMID: 31352383 PMCID: PMC6663165 DOI: 10.1136/bcr-2019-229508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2019] [Indexed: 11/04/2022] Open
Abstract
Massive transfusion therapy in severe paediatric trauma is a challenge. When this occurs in a rural setting, the potential delays in accessing medical services can lead to worse coagulopathy on presentation. We report successful treatment of a child post-traumatic lower limb amputation where treatment was only initiated 3 hours postinjury due to difficulties in access/retrieval. Rotational thromboelastometry (ROTEM)-guided, goal-directed haemostatic therapy perioperatively utilising a blood product ratio of 2:2:1 units of red blood cell:free frozen plasma:platelet reverted his coagulopathy. This report aims to raise awareness of the utility of ROTEM in paediatric trauma.
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Affiliation(s)
- Kay Tai Choy
- Department of Surgery, Cairns Hospital, Cairns North, Queensland, Australia
| | - Merve Hartslief
- Department of Surgery, Cairns Hospital, Cairns North, Queensland, Australia
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Zhu X, Gui Y, Zhu B, Sun J. Anesthetic management of a patient with 10 l of blood loss during operation for a retroperitoneal mass. EGYPTIAN JOURNAL OF ANAESTHESIA 2019. [DOI: 10.1016/j.egja.2015.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Xueqin Zhu
- Department of Anesthesia, The Affiliated Hospital of School of Medicine of Ningbo University , 247 Renmin Rd. , Ningbo City, Zhejiang Province, 315020, PR China
| | - Yu Gui
- Department of Anesthesia, The Affiliated Hospital of School of Medicine of Ningbo University , 247 Renmin Rd. , Ningbo City, Zhejiang Province, 315020, PR China
| | - Binbin Zhu
- Department of Anesthesia, The Affiliated Hospital of School of Medicine of Ningbo University , 247 Renmin Rd. , Ningbo City, Zhejiang Province, 315020, PR China
| | - Jian Sun
- Department of Anesthesia, The Affiliated Hospital of School of Medicine of Ningbo University , 247 Renmin Rd. , Ningbo City, Zhejiang Province, 315020, PR China
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Thrombelastography early amplitudes in bleeding and coagulopathic trauma patients: Results from a multicenter study. J Trauma Acute Care Surg 2019; 84:334-341. [PMID: 29112094 DOI: 10.1097/ta.0000000000001735] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Early amplitudes in the viscoelastic hemostatic assays, thrombelastography (TEG) and rotation thromboelastometry (ROTEM), provide fast results, which is critical in the resuscitation of bleeding patients. This study investigated associations between TEG early amplitudes and standard TEG variables in a large multicenter cohort of moderately to severely injured trauma patients admitted at three North European Level I Trauma Centers. METHODS Prospective observational study of 404 trauma patients with clinical suspicion of severe injury from London, UK, Copenhagen, Denmark and Oslo, Norway. Biochemistry and clinical data including outcome and TEG parameters were recorded upon arrival. Kaolin TEG, Rapid TEG, and TEG functional fibrinogen curves were extracted, and early amplitudes A5 and A10 (amplitude at 5 and 10 minutes) were registered. Patients were stratified according to international normalized ratio of 1.2 or less or greater than 1.2, as well as transfusion requirements (nontransfused, 1-9 red blood cell units and ≥10 red blood cell units in 12 hours). RESULTS In total, 404 patients were included, median Injury Severity Score was 13. There were strong positive correlations between A5/A10 and maximum amplitude in all investigated assays. All TEG values except rTEG maximum amplitude and kTEG maximum amplitude correlated significantly with mortality in transfused patients. Time from initiation of assay to A5 and A10 were lowest for rapid TEG and TEG functional fibrinogen compared with kaolin TEG. Rapid TEG A5 reduced time to result with greater than 50% compared with rapid TEG maximum amplitude. CONCLUSION We found strong associations between TEG early amplitudes A5/A10 and maximum amplitude in rapid TEG, kaolin TEG, and TEG functional fibrinogen across trauma patients with coagulopathy and massive transfusion requirements. Introducing the use of early amplitudes can reduce time to diagnosis of coagulopathy and may be used in TEG monitoring of trauma patient. Further randomized controlled trials evaluating the role of TEG in guiding hemostatic resuscitation are warranted. LEVEL OF EVIDENCE Prognostic study, level III.
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Zhao YF, Zhao JY, Hu WZ, Ma K, Chao Y, Sun PJ, Fu XB, Zhang H. Synthetic poly(vinyl alcohol)–chitosan as a new type of highly efficient hemostatic sponge with blood-triggered swelling and high biocompatibility. J Mater Chem B 2019; 7:1855-1866. [PMID: 32255048 DOI: 10.1039/c8tb03181a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic poly(vinyl alcohol)–chitosan as a new type of highly efficient hemostatic sponge with blood-triggered swelling and high biocompatibility.
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Affiliation(s)
- Yi-Fan Zhao
- Department of Anesthesiology
- Medical School of Chinese PLA
- Beijing 100853
- China
| | - Jing-Yu Zhao
- Department of Anesthesiology
- Medical School of Chinese PLA
- Beijing 100853
- China
| | - Wen-Zhi Hu
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Kui Ma
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Yong Chao
- Department of Medical engineering
- The First Affiliated Hospital of the PLA General Hospital
- Beijing 100048
- China
| | - Peng-Jun Sun
- Department of General Sugery
- The First Affiliated Hospital of the PLA General Hospital
- Beijing 100048
- China
| | - Xiao-Bing Fu
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Hong Zhang
- Department of Anesthesiology
- PLA General Hospital
- Beijing 100853
- China
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The Reverse Shock Index Multiplied by Glasgow Coma Scale Score (rSIG) and Prediction of Mortality Outcome in Adult Trauma Patients: A Cross-Sectional Analysis Based on Registered Trauma Data. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15112346. [PMID: 30355971 PMCID: PMC6266192 DOI: 10.3390/ijerph15112346] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 10/19/2018] [Accepted: 10/20/2018] [Indexed: 11/17/2022]
Abstract
The reverse shock index (rSI) multiplied by Glasgow Coma Scale (GCS) score (rSIG), calculated by multiplying the GCS score with systolic blood pressure (SBP)/hear rate (HR), was proposed to be a reliable triage tool for identifying risk of in-hospital mortality in trauma patients. This study was designed to externally validate the accuracy of the rSIG in the prediction of mortality in our cohort of trauma patients, in comparison with those that were predicted by the Revised Trauma Score (RTS), shock index (SI), and Trauma and Injury Severity Score (TRISS). Adult trauma patients aged ≥20 years who were admitted to the hospital from 1 January 2009 to 31 December 2017, were included in this study. The rSIG, RTS, and SI were calculated according to the initial vital signs and GCS scores of patients upon arrival at the emergency department (ED). The end-point of primary outcome is in-hospital mortality. Discriminative power of each score to predict mortality was measured using area under the curve (AUC) by plotting the receiver operating characteristic (ROC) curve for 18,750 adult trauma patients, comprising 2438 patients with isolated head injury (only head Abbreviated Injury Scale (AIS) ≥ 2) and 16,312 without head injury (head AIS ≤ 1). The predictive accuracy of rSIG was significantly lower than that of RTS in all trauma patients (AUC 0.83 vs. AUC 0.85, p = 0.02) and in patients with isolated head injury (AUC 0.82 vs. AUC 0.85, p = 0.02). For patients without head injury, no difference was observed in the predictive accuracy between rSIG and RTS (AUC 0.83 vs. AUC 0.83, p = 0.97). Based on the cutoff value of 14.0, the rSIG can predict the probability of dying in trauma patients without head injury with a sensitivity of 61.5% and specificity of 94.5%. The predictive accuracy of both rSIG and RTS is significantly poorer than that of TRISS, in all trauma patients (AUC 0.93) or in patients with (AUC 0.89) and without head injury (AUC 0.92). In addition, SI had the significantly worse predictive accuracy than all of the other three models in all trauma patients (AUC 0.57), and the patients with (AUC 0.53) or without (AUC 0.63) head injury. This study revealed that rSIG had a significantly higher predictive accuracy of mortality than SI in all of the studied population but a lower predictive accuracy of mortality than RTS in all adult trauma patients and in adult patients with isolated head injury. In addition, in the adult patients without head injury, rSIG had a similar performance as RTS to the predictive risk of mortality of the patients.
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Crochemore T, Savioli FA, Pessoa CM, Resende AA, Narciso RC. Compensatory effect of fibrinogen in a patient with bone marrow aplasia, septic shock, and severe thrombocytopenia guided by thromboelastometry: a case report. Rev Bras Ter Intensiva 2018; 30:394-397. [PMID: 30328993 PMCID: PMC6180468 DOI: 10.5935/0103-507x.20180056] [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: 02/16/2018] [Accepted: 05/21/2018] [Indexed: 11/20/2022] Open
Abstract
Platelet transfusion is a common practice to prevent spontaneous bleeding or
bleeding due to invasive procedures. Transfusion of allogeneic blood components
is associated with increased mortality and a worse clinical outcome. The clot
strength is assessed by thromboelastometry and determined by the interaction
between platelets and fibrinogen. The compensatory effect of high levels of
fibrinogen on clot strength in patients with thrombocytopenia has been
demonstrated in different clinical settings including sepsis. We report the case
of a patient with severe thrombocytopenia whose thromboelastometry showed clot
strength that was compensated for by the increase in plasma fibrinogen levels as
an acute phase reactant of septic patients. Here, we report a case of a
62-year-old female diagnosed with bone marrow aplasia admitted in the intensive
care unit with septic shock and severe thrombocytopenia. During the first 24
hours in the intensive care unit, she presented acute respiratory insufficiency
and circulatory shock. The use of invasive mechanical ventilation and
norepinephrine was required. Her chest X-ray showed bilateral lung injury. Thus,
bronchoscopy with bronchoalveolar lavage was requested. Thromboelastometry was
performed and resulted in a normal coagulable profile. Despite severe
thrombocytopenia (1,000/mm3), fibrinogen levels were increased
(1,050mg/dL) due to septic shock. Bronchoscopy was performed without any active
or further bleeding. Here, we report the use of thromboelastometry in the
diagnosis of coagulation disorders, preventing unnecessary prophylactic platelet
transfusion.
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Affiliation(s)
- Tomaz Crochemore
- Unidade de Terapia Intensiva, Hospital Leforte Morumbi - São Paulo (SP), Brasil
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22
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Crochemore T, Corrêa TD, Lance MD, Solomon C, Neto AS, Guerra JCDC, Lellis PS, Bernz LM, Nunes N, Mancio CM, Yokoyama APH, Silva E. Thromboelastometry profile in critically ill patients: A single-center, retrospective, observational study. PLoS One 2018; 13:e0192965. [PMID: 29462165 PMCID: PMC5819777 DOI: 10.1371/journal.pone.0192965] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 02/01/2018] [Indexed: 12/17/2022] Open
Abstract
Background Transfusion therapy is associated with increased morbidity, mortality and costs. Conventional coagulation tests (CCT) are weak bleeding predictors, poorly reflecting coagulation in vivo. Thromboelastometry (ROTEM) provides early identification of coagulation disorders and can guide transfusion therapy by goals, reducing blood components transfusion. Objective The aim of this study is to describe coagulation profile of critically ill patients using ROTEM and evaluate the association between CCT and thromboelastometry. Methods This is a retrospective, observational study conducted in medical-surgical intensive care unit (ICU). Adult patients (≥18 years) admitted to ICU between November 2012 and December 2014, in whom ROTEM analyses were performed for bleeding management were included in this study. The first ROTEM and CCT after ICU admission were recorded simultaneously. Additionally, we collected data on blood components transfusion and hemostatic agents immediately after laboratory tests results. Results The study included 531 patients. Most ROTEM tests showed normal coagulation profile [INTEM (54.8%), EXTEM (54.1%) and FIBTEM (53.3%)] with divergent results in relation to CCT: low platelet count (51.8% in INTEM and 55.9% in EXTEM); prolonged aPTT (69.9% in INTEM and 63.7% in EXTEM) and higher INR (23.8% in INTEM and 27.4% in EXTEM). However 16,7% of patients with normocoagulability in ROTEM received platelet concentrates and 10% fresh frozen plasma. Conclusion The predominant ROTEM profile observed in this sample of critically ill patients was normal. In contrast, CCT suggested coagulopathy leading to a possibly unnecessary allogenic blood component transfusion. ROTEM test may avoid inappropriate allogeneic blood products transfusion in these patients.
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Affiliation(s)
- Tomaz Crochemore
- Hospital Israelita Albert Einstein, Intensive Care Unit, São Paulo, Brazil
- * E-mail:
| | | | - Marcus D. Lance
- Hamad Medical Corporation | HMC · Anesthesiology, ICU and perioperative medicine –Doha/ Qatar
| | - Cristina Solomon
- Research & Development Department, Octapharma, Lachen, Switzerland
- Department of Anesthesiology, Perioperative Care and General Intensive Care, Paracelsus Medical University, Salzburg University Hospital, Salzburg, Austria
| | - Ary Serpa Neto
- Hospital Israelita Albert Einstein, Intensive Care Unit, São Paulo, Brazil
| | | | | | - Livia Muller Bernz
- Hospital Israelita Albert Einstein, Intensive Care Unit, São Paulo, Brazil
| | - Natalia Nunes
- Hospital Israelita Albert Einstein, Intensive Care Unit, São Paulo, Brazil
| | | | | | - Eliézer Silva
- Hospital Israelita Albert Einstein, Intensive Care Unit, São Paulo, Brazil
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Wu MY, Chou PL, Wu TI, Lin PJ. Predictors of hospital mortality in adult trauma patients receiving extracorporeal membrane oxygenation for advanced life support: a retrospective cohort study. Scand J Trauma Resusc Emerg Med 2018; 26:14. [PMID: 29422067 PMCID: PMC5806237 DOI: 10.1186/s13049-018-0481-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/15/2018] [Indexed: 11/13/2022] Open
Abstract
Background Using extracorporeal membrane oxygenation (ECMO) to provide advanced life support in adult trauma patients remains a controversial issue now. The study was aimed at identifying the independent predictors of hospital mortality in adult trauma patients receiving ECMO for advanced cardiopulmonary dysfunctions. Methods This retrospective study enrolled 36 adult trauma patients receiving ECMO due to advanced shock or respiratory failure in a level I trauma center between August 2006 and October 2014. Variables collected for analysis were demographics, serum biomarkers, characteristics of trauma, injury severity score (ISS), damage-control interventions, indications of ECMO, and associated complications. The outcomes were hospital mortality and hemorrhage on ECMO. The multivariate logistic regression method was used to identify the independent prognostic predictors for the outcomes. Results The medians of age and ISS were 36 (27–49) years and 29 (19–45). Twenty-three patients received damage-control interventions before ECMO. Among the 36 trauma patients, 14 received ECMO due to shock and 22 for respiratory failure. The complications of ECMO are major hemorrhages (n = 12), acute renal failure requiring hemodialysis (n = 10), and major brain events (n = 7). There were 15 patients died in hospital, and 9 of them were in the shock group. Conclusions The severity of trauma and the type of cardiopulmonary dysfunction significantly affected the outcomes of ECMO used for sustaining patients with post-traumatic cardiopulmonary dysfunction. Hemorrhage on ECMO remained a concern while the device was required soon after trauma, although a heparin-minimized protocol was adopted. Trial registration This study reported a health care intervention on human participants and was retrospectively registered. The Chang Gung Medical Foundation Institutional Review Board approved the study (no. 201601610B0) on December 12, 2016. All of the data were extracted from December 14, 2016, to March 31, 2017.
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Affiliation(s)
- Meng-Yu Wu
- Department of Cardiothoracic Surgery, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan. .,School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, Taiwan. .,, Taoyuan, Taiwan, Republic of China.
| | - Pin-Li Chou
- Department of Surgery, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Tzu-I Wu
- Department of Obstetrics and Gynecology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Pyng-Jing Lin
- Department of Cardiothoracic Surgery, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
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Wang Y, Kim K, Lee MS, Lee H. Hemostatic Ability of Chitosan-Phosphate Inspired by Coagulation Mechanisms of Platelet Polyphosphates. Macromol Biosci 2018; 18:e1700378. [DOI: 10.1002/mabi.201700378] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/29/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Younseon Wang
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); 291, University Rd Yuseong-Gu Daejeon 34141 South Korea
| | - Keumyeon Kim
- R&D Center InnoTherapy Inc.; 25, Sonyou 13th Rd, High-tech City II Suite #2019 Youngdeungpo-Gu 07282 South Korea
| | - Moon Sue Lee
- R&D Center InnoTherapy Inc.; 25, Sonyou 13th Rd, High-tech City II Suite #2019 Youngdeungpo-Gu 07282 South Korea
| | - Haeshin Lee
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); 291, University Rd Yuseong-Gu Daejeon 34141 South Korea
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Point-of-care viscoelastic testing improves the outcome of pregnancies complicated by severe postpartum hemorrhage. J Clin Anesth 2018; 44:50-56. [DOI: 10.1016/j.jclinane.2017.10.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/21/2017] [Accepted: 10/14/2017] [Indexed: 11/21/2022]
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Gruzdeva O, Uchasova E, Fanaskova E, Akbasheva O, Penskaya T, Plotnikov G, Dyleva Y, Barbarash O. Use of thrombin generation test for monitoring hemostasis in coronary bypass surgery. Clin Hemorheol Microcirc 2017; 66:57-66. [PMID: 28128747 PMCID: PMC5438468 DOI: 10.3233/ch-160216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
To evaluate the parameters of the thrombin generation test (TGT) in coronary artery disease (CAD) patients on prolonged aspirin therapy during on-pump coronary artery bypass grafting (CABG) after donor platelet concentrate transfusion. A total of 148 patients with CAD on prolonged aspirin therapy (75–100 mg/day) who have undergone elective on-pump CABG were consecutively included in the study. Patients were divided randomly into two groups. Group 1 (n = 76) received donor platelet transfusions after cardiopulmonary bypass, whereas Group 2 (n = 72) did not. TGT parameters were measured using an analyzer at pre-, intra-, and early postoperative periods. Activation of the endogenous thrombin potential was observed in patients on prolonged aspirin therapy in the pre- and intraoperative periods, as confirmed by high peak thrombin and increased velocity index. The activation time of the prothrombinase complex and thrombin generation time were greater than the control group. The blood hemostatic potential in patients who did not receive transfusions in the early postoperative period decreased up to the level of the control group in the extended time parameters. Hemostatic potential in plasma in patients on aspirin was preserved. Given the laboratory test results and clinical data, platelet concentrate transfusion is unnecessary for prevention.
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Affiliation(s)
- Olga Gruzdeva
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia
| | - Evgenya Uchasova
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia
| | - Elena Fanaskova
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia
| | - Olga Akbasheva
- Federal State Budget Educational Institution of Higher Professional Education "Siberian StateMedical University", the Ministry of Health of the Russian Federation, Tomsk, Russia
| | - Tatyana Penskaya
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia
| | - Georgy Plotnikov
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia
| | - Yulia Dyleva
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia
| | - Olga Barbarash
- Federal State Budgetary Institution "Research Institute for Complex Issues of Cardiovascular Diseases", Kemerovo, Russia.,Federal State Budget Educational Institution of Higher Professional Education "Kemerovo State Medical University", the Ministry of Health of the Russian Federation, Kemerovo, Russia
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Bonet A, Madrazo Z, Koo M, Otero I, Mallol M, Macia I, Ramirez L, Sabaté A. Thromboelastometric Profile and Acute Coagulopathy of the Polytraumatized Patient: Clinical and Prognostic Implications. Cir Esp 2017; 96:41-48. [PMID: 29110832 DOI: 10.1016/j.ciresp.2017.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/18/2017] [Accepted: 09/19/2017] [Indexed: 11/15/2022]
Abstract
INTRODUCTION About 25-35% of polytraumatized patients have a profound alteration of hemostasis on arrival at the hospital (acute traumatic coagulopathy [CAT]). Viscoelastic tests (ROTEM®) measure the hemostatic capacity and provide an early detection of CAT. The objectives of this study are to describe the initial thromboelastogram of these patients and to determine the prevalence of CAT according to predefined thromboelastographic profiles. METHODS Single-center, observational, prospective study in polytraumatic patients. Initial blood and thromboelastographic test (ROTEM®) were made, and pre-hospital, hospital, transfusion, initial surgical/angiographic interventions, cardiac arrest and mortality data were collected. ROTEM®-based, patients were classified as: normal, hypercoagulable, hypocoagulable, hipocoagulable +hyperfibrinolytic and isolated hyperfibrinolysis. RESULTS One hundred and twenty-three patients were analyzed. 32 cases (26%) with CAT: 15 patients with hypocoagulability, 9 with hyperfibrinolysis alone and 8 with hypocoagulability +hyperfibrinolysis. The CAT group, related to the normal group, presented higher ISS (23 vs. 16, P<.01), higher blood products transfusion (2.5 vs. 0; P=.001), more cardiac arrest (19 vs. 1%, P<.01), and higher mortality (34 vs. 5%, P<.01). The subgroup with hypocoagulability/hyperfibrinolysis, related to the groups with hypocoagulability or hyperfibrinolysis alone, presented a higher ISS (41 vs. 25 vs. 15, P<.01), higher angiographic procedures (62% vs. 13% vs. 0%, P<.01) and higher mortality (75% vs. 33% vs. 0%, P=.05). CONCLUSIONS Twenty-six percent of the polytrauma patients presented early coagulopathy assessed by thromboelastography. It is associated with higher consumption of blood products and lower survival. The presence of hypocoagulability +hyperfibrinolysis is associated with greater severity and a higher requirement of blood products.
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Affiliation(s)
- Antònia Bonet
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España.
| | - Zoilo Madrazo
- Servicio de Cirugía General y Digestiva, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Maylin Koo
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Israel Otero
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Montserrat Mallol
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Irene Macia
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Luciano Ramirez
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Antoni Sabaté
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España
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Andreason CL, Pohlman TH. Damage Control Resuscitation for Catastrophic Bleeding. Oral Maxillofac Surg Clin North Am 2017; 28:553-568. [PMID: 27745621 DOI: 10.1016/j.coms.2016.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The timely recognition of shock secondary to hemorrhage from severe facial trauma or as a complication of complex oral and maxillofacial surgery presents formidable challenges. Specific hemostatic disorders are induced by hemorrhage and several extreme homeostatic imbalances may appear during or after resuscitation. Damage control resuscitation has evolved from massive transfusion to a more complex therapeutic paradigm that includes hemodynamic resuscitation, hemostatic resuscitation, and homeostatic resuscitation. Definitive control of bleeding is the principal objective of any comprehensive resuscitation scheme for hemorrhagic shock.
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Affiliation(s)
- Chase L Andreason
- Department of Oral Surgery and Hospital Dentistry, Indiana University School of Dentistry, 1121 West Michigan Street, Indianapolis, IN 46202, USA
| | - Timothy H Pohlman
- Trauma Services, Division of General Surgery, Department of Surgery, Methodist Hospital, Indiana University Health, Suite B238, 1701 North Senate Boulevard, Indianapolis, IN 46202, USA.
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Wikkelsø A, Wetterslev J, Møller AM, Afshari A. Thromboelastography (TEG) or thromboelastometry (ROTEM) to monitor haemostatic treatment versus usual care in adults or children with bleeding. Cochrane Database Syst Rev 2016; 2016:CD007871. [PMID: 27552162 PMCID: PMC6472507 DOI: 10.1002/14651858.cd007871.pub3] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Severe bleeding and coagulopathy are serious clinical conditions that are associated with high mortality. Thromboelastography (TEG) and thromboelastometry (ROTEM) are increasingly used to guide transfusion strategy but their roles remain disputed. This review was first published in 2011 and updated in January 2016. OBJECTIVES We assessed the benefits and harms of thromboelastography (TEG)-guided or thromboelastometry (ROTEM)-guided transfusion in adults and children with bleeding. We looked at various outcomes, such as overall mortality and bleeding events, conducted subgroup and sensitivity analyses, examined the role of bias, and applied trial sequential analyses (TSAs) to examine the amount of evidence gathered so far. SEARCH METHODS In this updated review we identified randomized controlled trials (RCTs) from the following electronic databases: Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 1); MEDLINE; Embase; Science Citation Index Expanded; International Web of Science; CINAHL; LILACS; and the Chinese Biomedical Literature Database (up to 5 January 2016). We contacted trial authors, authors of previous reviews, and manufacturers in the field. The original search was run in October 2010. SELECTION CRITERIA We included all RCTs, irrespective of blinding or language, that compared transfusion guided by TEG or ROTEM to transfusion guided by clinical judgement, guided by standard laboratory tests, or a combination. We also included interventional algorithms including both TEG or ROTEM in combination with standard laboratory tests or other devices. The primary analysis included trials on TEG or ROTEM versus any comparator. DATA COLLECTION AND ANALYSIS Two review authors independently abstracted data; we resolved any disagreements by discussion. We presented pooled estimates of the intervention effects on dichotomous outcomes as risk ratio (RR) with 95% confidence intervals (CIs). Due to skewed data, meta-analysis was not provided for continuous outcome data. Our primary outcome measure was all-cause mortality. We performed subgroup and sensitivity analyses to assess the effect based on the presence of coagulopathy of a TEG- or ROTEM-guided algorithm, and in adults and children on various clinical and physiological outcomes. We assessed the risk of bias through assessment of trial methodological components and the risk of random error through TSA. MAIN RESULTS We included eight new studies (617 participants) in this updated review. In total we included 17 studies (1493 participants). A total of 15 trials provided data for the meta-analyses. We judged only two trials as low risk of bias. The majority of studies included participants undergoing cardiac surgery.We found six ongoing trials but were unable to retrieve any data from them. Compared with transfusion guided by any method, TEG or ROTEM seemed to reduce overall mortality (7.4% versus 3.9%; risk ratio (RR) 0.52, 95% CI 0.28 to 0.95; I(2) = 0%, 8 studies, 717 participants, low quality of evidence) but only eight trials provided data on mortality, and two were zero event trials. Our analyses demonstrated a statistically significant effect of TEG or ROTEM compared to any comparison on the proportion of participants transfused with pooled red blood cells (PRBCs) (RR 0.86, 95% CI 0.79 to 0.94; I(2) = 0%, 10 studies, 832 participants, low quality of evidence), fresh frozen plasma (FFP) (RR 0.57, 95% CI 0.33 to 0.96; I(2) = 86%, 8 studies, 761 participants, low quality of evidence), platelets (RR 0.73, 95% CI 0.60 to 0.88; I(2) = 0%, 10 studies, 832 participants, low quality of evidence), and overall haemostatic transfusion with FFP or platelets (low quality of evidence). Meta-analyses also showed fewer participants with dialysis-dependent renal failure.We found no difference in the proportion needing surgical reinterventions (RR 0.75, 95% CI 0.50 to 1.10; I(2) = 0%, 9 studies, 887 participants, low quality of evidence) and excessive bleeding events or massive transfusion (RR 0.38, 95% CI 0.38 to 1.77; I(2) = 34%, 2 studies, 280 participants, low quality of evidence). The planned subgroup analyses failed to show any significant differences.We graded the quality of evidence as low based on the high risk of bias in the studies, large heterogeneity, low number of events, imprecision, and indirectness. TSA indicates that only 54% of required information size has been reached so far in regards to mortality, while there may be evidence of benefit for transfusion outcomes. Overall, evaluated outcomes were consistent with a benefit in favour of a TEG- or ROTEM-guided transfusion in bleeding patients. AUTHORS' CONCLUSIONS There is growing evidence that application of TEG- or ROTEM-guided transfusion strategies may reduce the need for blood products, and improve morbidity in patients with bleeding. However, these results are primarily based on trials of elective cardiac surgery involving cardiopulmonary bypass, and the level of evidence remains low. Further evaluation of TEG- or ROTEM-guided transfusion in acute settings and other patient categories in low risk of bias studies is needed.
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Affiliation(s)
- Anne Wikkelsø
- Hvidovre Hospital, University of CopenhagenDepartment of Anaesthesiology and Intensive Care MedicineKettegård Alle 30,HvidovreDenmark2650
| | - Jørn Wetterslev
- Department 7812, Rigshospitalet, Copenhagen University HospitalCopenhagen Trial Unit, Centre for Clinical Intervention ResearchBlegdamsvej 9CopenhagenDenmarkDK‐2100
| | - Ann Merete Møller
- Herlev and Gentofte Hospital, University of CopenhagenCochrane Anaesthesia, Critical and Emergency Care GroupHerlev RingvejHerlevDenmark2730
| | - Arash Afshari
- Rigshospitalet, Copenhagen University HospitalJuliane Marie Centre ‐ Anaesthesia and Surgical Clinic Department 4013CopenhagenDenmark
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Lai WH, Wu SC, Rau CS, Kuo PJ, Hsu SY, Chen YC, Hsieh HY, Hsieh CH. Systolic Blood Pressure Lower than Heart Rate upon Arrival at and Departure from the Emergency Department Indicates a Poor Outcome for Adult Trauma Patients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:E528. [PMID: 27231926 PMCID: PMC4923985 DOI: 10.3390/ijerph13060528] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/13/2016] [Accepted: 05/19/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Hemorrhage is a leading cause of preventable trauma death. In this study, we used the reverse shock index (RSI), a ratio of systolic blood pressure (SBP) to heart rate (HR), to evaluate the hemodynamic stability of trauma patients. As an SBP lower than the HR (RSI < 1) may indicate hemodynamic instability, the objective of this study was to assess the associated complications in trauma patients with an RSI < 1 upon arrival at the emergency department (ED) (indicated as (A)RSI) and at the time of departure from the ED (indicated as (L)RSI) to the operative room or for admission. METHODS Data obtained from all 16,548 hospitalized patients recorded in the trauma registry system at a Level I trauma center between January 2009 and December 2013 were retrospectively reviewed. A total of 10,234 adult trauma patients aged ≥20 were enrolled and subsequently divided into four groups: Group I, (A)RSI ≥ 1 and (L)RSI ≥ 1 (n = 9827); Group II, (A)RSI ≥ 1 and (L)RSI < 1 (n = 76); Group III, (A)RSI < 1 and (L)RSI ≥ 1 (n = 251); and Group IV, (A)RSI < 1 and (L)RSI < 1 (n = 80). Pearson's χ² test, Fisher's exact test, or independent Student's t-test was conducted to compare trauma patients in Groups II, III, and IV with those in Group I. RESULTS Patients in Groups II, III, and IV had a higher injury severity score and underwent a higher number of procedures, including intubation, chest tube insertion, and blood transfusion, than Group I patients. Additionally, patients of these groups had increased hospital length of stay (16.3 days, 14.9 days, and 22.0 days, respectively), proportion of patients admitted to the intensive care unit (ICU) (48.7%, 43.0%, and 62.5%, respectively), and in-hospital mortality (19.7%, 7.6%, and 27.5%, respectively). Although the trauma patients who had a SBP < 90 mmHg either upon arrival at or departure from the ED also present a more severe injury and poor outcome, those patients who had a SBP ≥ 90 mmHg but an RSI < 1 had a more severe injury and poor outcome than those patients who had a SBP ≥ 90 mmHg and an RSI ≥ 1. CONCLUSIONS SBP lower than heart rate (RSI < 1) either upon arrival at or departure from the ED may indicate a detrimental sign of poor outcome in adult trauma patients even in the absence of noted hypotension.
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Affiliation(s)
- Wei-Hung Lai
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
| | - Shao-Chun Wu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
| | - Cheng-Shyuan Rau
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, No.123, Ta-Pei Road, Niao-Song District, Kaohsiung City 833, Taiwan.
| | - Pao-Jen Kuo
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
| | - Shiun-Yuan Hsu
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
| | - Yi-Chun Chen
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
| | - Hsiao-Yun Hsieh
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
| | - Ching-Hua Hsieh
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, No.123, Ta-Pei Road, Niao-Song District, Kaohsiung City 833, Taiwan.
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Maghaminejad F, Adib-Hajbaghery M. The Quality of Pre-hospital Circulatory Management in Patients With Multiple Trauma Referred to the Trauma Center of Shahid Beheshti Hospital in Kashan, Iran, in the First Six Months of 2013. Nurs Midwifery Stud 2016; 5:e32708. [PMID: 27556056 PMCID: PMC4993125 DOI: 10.17795/nmsjournal32708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 09/10/2015] [Accepted: 12/28/2015] [Indexed: 11/25/2022] Open
Abstract
Background Circulatory management is a critical issue in pre-hospital transportation phase of multiple trauma patients. However, the quality of this important care did not receive enough attention. Objectives The aim of this study was to investigate the quality of pre-hospital circulatory management in patients with multiple trauma. Patients and Methods This was a cross-sectional study conducted in 2013. The study population consisted of all patients with multiple trauma who had been transferred by emergency medical services (EMS) to the central trauma department in Kashan Shahid Beheshti medical center, Kashan, Iran. We recruited a convenience sample of 400 patients with multiple trauma. Data were collected using the circulatory assessment questionnaire and controlling hemorrhage (CAQCH) that were designed by the researchers and were described by using frequency tabulations, central tendency measures, and variability indices. The chi-square test was used to analyze the data. Results The study sample consisted of 263 males (75.2%); 57.75% had lower levels of education and 28.75% were workers. The most common mechanism of trauma was traffic accident (85.4%). We found that the quality of circulatory management was unfavorable in 61% of the cases. A significant relationship was observed between the quality of circulatory management and type of trauma and staff’s employment status. Conclusions The quality of pre-hospital circulatory management provided to patients with multiple trauma was unfavorable. Therefore, establishment of in-service training programs on circulatory management is recommended.
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Affiliation(s)
- Farzaneh Maghaminejad
- Trauma Nursing Research Centre, Faculty of Nursing and Midwifery, Kashan University of Medical Sciences, Kashan, IR Iran
| | - Mohsen Adib-Hajbaghery
- Trauma Nursing Research Centre, Faculty of Nursing and Midwifery, Kashan University of Medical Sciences, Kashan, IR Iran
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Comparison of Topical Hemostatic Agents in a Swine Model of Extremity Arterial Hemorrhage: BloodSTOP iX Battle Matrix vs. QuikClot Combat Gauze. Int J Mol Sci 2016; 17:545. [PMID: 27077848 PMCID: PMC4849001 DOI: 10.3390/ijms17040545] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 04/01/2016] [Accepted: 04/05/2016] [Indexed: 11/17/2022] Open
Abstract
BloodSTOP iX Battle Matrix (BM) and QuikClot Combat Gauze (CG) have both been used to treat traumatic bleeding. The purpose of this study was to examine the efficacy and initial safety of both products in a swine extremity arterial hemorrhage model, which mimics combat injury. Swine (37.13 ± 0.56 kg, NBM = 11, NCG = 9) were anesthetized and splenectomized. We then isolated the femoral arteries and performed a 6 mm arteriotomy. After 45 s of free bleeding, either BM or CG was applied. Fluid resuscitation was provided to maintain a mean arterial pressure of 65 mmHg. Animals were observed for three hours or until death. Fluoroscopic angiography and wound stability challenge tests were performed on survivors. Tissue samples were collected for histologic examination. Stable hemostasis was achieved in 11/11 BM and 5/9 CG subjects, with recovery of mean arterial pressure and animal survival for three hours (p < 0.05, Odds Ratio (OR) = 18.82 (0.85–415.3)). Time to stable hemostasis was shorter for the BM-treated group (4.8 ± 2.5 min vs. 58 ± 20.1 min; Median = 2, Interquartile Range (IQR) = 0 min vs. Median = 60, IQR = 120 min; p < 0.05) and experienced longer total stable hemostasis (175.2 ± 2.5 min vs. 92.4 ± 29.9 min; Median = 178, IQR = 0 min vs. Median = 120, IQR = 178 min; p < 0.05). Post-treatment blood loss was lower with BM (9.5 ± 2.4 mL/kg, Median = 10.52, IQR = 13.63 mL/kg) compared to CG (29.9 ± 9.9 mL/kg, Median = 29.38, IQR = 62.44 mL/kg) (p = 0.2875). Standard BM products weighed less compared to CG (6.9 ± 0.03 g vs. 20.2 ± 0.4 g) (p < 0.05) and absorbed less blood (3.4 ± 0.8 g vs. 41.9 ± 12.3 g) (p < 0.05). Fluoroscopic angiography showed recanalization in 5/11 (BM) and 0/5 (CG) surviving animals (p = 0.07, OR = 9.3 (0.41–208.8)). The wound stability challenge test resulted in wound re-bleeding in 1/11 (BM) and 5/5 (CG) surviving animals (p < 0.05, OR = 0.013 (0.00045–0.375)). Histologic evidence indicated no wound site, distal limb or major organ damage in either group. BM is more effective and portable in treating arterial hemorrhage compared to CG. There was no histologic evidence of further damage in either group.
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Kandemir T, Kandemir E, Aşkın T, Dal T, Kılıç Y, Ünver S. Massive Blood Transfusion during Revision Total Hip Arthroplasty under Combined Spinal Epidural Anaesthesia. Turk J Anaesthesiol Reanim 2016; 44:54-6. [PMID: 27366558 DOI: 10.5152/tjar.2016.32858] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/12/2015] [Indexed: 11/22/2022] Open
Abstract
Revision total hip arthroplasty (THA) is an orthopaedic surgery that is known to be associated with excessive bleeding. The rates of mortality and morbidity are high in patients with massive haemorrhage. The patient in this study was administered blood products with high fresh frozen plasma/red blood cell (RBC) suspension ratio and high platelet/RBC suspension ratio without waiting for haemostasis test results. This study suggests that this approach might prove beneficial in reducing the incidence of intra- and postoperative complications. this study presents our experience with a patient who underwent THA and required a transfusion that was three times her estimated total blood volume. The patient was successfully managed with close monitoring of haemorrhage and timely administration of blood and blood products before hypotension and loss of consciousness occurred.
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Affiliation(s)
- Tünay Kandemir
- Clinic of Anaesthesia, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Erbin Kandemir
- Clinic of Anaesthesia, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Tuğba Aşkın
- Clinic of Anaesthesia, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Tülay Dal
- Clinic of Anaesthesia, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Yeliz Kılıç
- Clinic of Anaesthesia, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Süheyla Ünver
- Clinic of Anaesthesia, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
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Levi M, Hunt BJ. A critical appraisal of point-of-care coagulation testing in critically ill patients. J Thromb Haemost 2015; 13:1960-7. [PMID: 26333113 DOI: 10.1111/jth.13126] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 08/22/2015] [Indexed: 12/16/2022]
Abstract
Derangement of the coagulation system is a common phenomenon in critically ill patients, who may present with severe bleeding and/or conditions associated with a prothrombotic state. Monitoring of this coagulopathy can be performed with conventional coagulation assays; however, point-of-care tests have become increasingly attractive, because not only do they yield a more rapid result than clinical laboratory testing, but they may also provide a more complete picture of the condition of the hemostatic system. There are many potential areas of study and applications of point-of-care hemostatic testing in critical care, including patients who present with massive blood loss, patients with a hypercoagulable state (such as in disseminated intravascular coagulation), and monitoring of antiplatelet treatment for acute arterial thrombosis, mostly acute coronary syndromes. However, the limitations of near-patient hemostatic testing has not been fully appreciated, and are discussed here. The currently available evidence indicates that point-of-care tests may be applied to guide appropriate blood product transfusion and the use of hemostatic agents to correct the hemostatic defect or to ameliorate antithrombotic treatment. Disappointingly, however, only in cardiac surgery is there adequate evidence to show that application of near-patient thromboelastography leads to an improvement in clinically relevant outcomes, such as reductions in bleeding-related morbidity and mortality, and cost-effectiveness. More research is required to validate the utility and cost-effectiveness of near-patient hemostatic testing in other areas, especially in traumatic bleeding and postpartum hemorrhage.
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Affiliation(s)
- M Levi
- Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - B J Hunt
- Thrombosis & Haemostasis, Kings College University & Consultant in Haematology, Lupus & Pathology, Guy's & St Thomas' NHS Foundation Trust, London, UK
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Hilbert-Carius P, Hofmann G, Stuttmann R. [Hemoglobin-oriented and coagulation factor-based algorithm : Effect on transfusion needs and standardized mortality rate in massively transfused trauma patients]. Anaesthesist 2015; 64:828-38. [PMID: 26453580 DOI: 10.1007/s00101-015-0093-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/14/2015] [Accepted: 08/23/2015] [Indexed: 01/09/2023]
Abstract
BACKGROUND Bleeding and trauma-induced coagulopathy (TIC) are major contributors to death related to trauma in the first 24 h and the major preventable contributors. Early surgical therapy and aggressive correction of TIC are key steps to prevent death in patients suffering from hemorrhage. Therefore, a standard operating procedure (SOP) using a hemoglobin (Hb)-oriented and coagulation factor-based algorithm for early correction of TIC was introduced in this level 1 trauma center. This SOP uses the correlation of the Hb values measured in the trauma bay and standard coagulation tests as the basis for various aggressive coagulation therapies. OBJECTIVE The aim was to investigate the effectiveness of the SOP in trauma patients requiring massive transfusions. The main objective was the effect on the transfusion requirements and the standardized mortality ratio (SMR), the ratio of observed deaths to expected/predicted deaths, in the cohort of massively transfused trauma patients after introduction of the SOP compared with a historical cohort. METHOD A retrospective, single center study was carried out at a supraregional trauma center between 2005 and 2014. After introduction of the Hb-oriented, coagulation factor-based SOP for correction of TIC in 2011 a before/after comparison of all trauma patients requiring massive transfusions during trauma bay resuscitation and intensive care unit (ICU) admission was carried out. Main outcome parameters were the transfusion requirement and the SMR. The historical cohort of massively transfused trauma patients before introduction of the SOP (group 1) was compared with the cohort after introduction of the SOP (group 2). Furthermore, the two cohorts were compared regarding injury severity, expected death calculated with the revised injury severity classification (RISC), hemostatic results on trauma bay and ICU admission, clotting therapy and outcome. RESULTS Of the 952 patients investigated 86 (9%) required massive transfusion (45 in group 1 and 41 in group 2). Both groups were comparable regarding injury severity but showed slight differences in hemostatic results on trauma bay admission, with a trend to worse results in group 2. Differences were recorded for platelet count on trauma bay admission with significantly lower values in group 2. The RISC predicted a significant difference in the mortality rate (46.5% group 1 and 65.3% group 2) but no significant differences in the observed mortality (44.4% group 1 and 47% group 2) were recorded. The SMR decreased from 0.95 in group 1 to 0.72 in group 2, meaning that in group 1 from 21 predicated trauma deaths 20 occurred and in group 2 from 27 predicated trauma deaths 19 occurred. This difference is not statistically significant (p = 0.16) due to the small sample size but is clinically relevant. A significant reduction in the requirement of red blood cell transfusions (22.8 ± 8.1 units vs 17.6 ± 7.6 units) was achieved (p = 0.003). Significant differences between the groups were observed regarding frequency and quantity of the coagulation-promoting drugs. Compared with group 1 the SOP used in group 2 achieved significantly better hemostatic results on ICU admission for fibrinogen and Quick's value and a clear trend to better results for international normalized ratio (INR) and PTT. CONCLUSION The SOP based on coagulation factor values and standardized clotting therapy showed a clear trend to reduction of the SMR in massively transfused trauma patients. On the other hand the SOP achieved a significant reduction in the transfusion requirements and a significant improvement in the hemostatic results in the most severely injured patients. This can be interpreted as an effective use of coagulation factors in the early hospital treatment of trauma patients with ongoing bleeding.
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Affiliation(s)
- P Hilbert-Carius
- Klinik für Anästhesiologie, Intensiv- u. Notfallmedizin, BG-Kliniken Bergmannstrost Halle (Saale), Merseburgerstr. 165, 06112, Halle (Saale), Deutschland.
| | - G Hofmann
- Klinik für Unfall- u. Wiederherstellungschirurgie, BG-Kliniken Bergmannstrost Halle (Saale), Halle (Saale), Deutschland.,Klinik für Unfall-, Hand- u. Wiederherstellungschirurgie, Friedrich-Schiller-Universität Jena, Jena, Deutschland
| | - R Stuttmann
- Klinik für Anästhesiologie, Intensiv- u. Notfallmedizin, BG-Kliniken Bergmannstrost Halle (Saale), Merseburgerstr. 165, 06112, Halle (Saale), Deutschland
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Solomon C, Schöchl H, Ranucci M, Schlimp CJ. Can the Viscoelastic Parameter α-Angle Distinguish Fibrinogen from Platelet Deficiency and Guide Fibrinogen Supplementation? Anesth Analg 2015. [PMID: 26197367 DOI: 10.1213/ane.0000000000000738] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Viscoelastic tests such as thrombelastography (TEG, Haemoscope Inc., Niles, IL) and thromboelastometry (ROTEM, Tem International GmbH, Munich, Germany), performed in whole blood, are increasingly used at the point-of-care to characterize coagulopathic states and guide hemostatic therapy. An algorithm, based on a mono-analysis (kaolin-activated assay) approach, was proposed in the TEG patent (issued in 2004) where the α-angle and the maximum amplitude parameters are used to guide fibrinogen supplementation and platelet administration, respectively. Although multiple assays for both the TEG and ROTEM devices are now available, algorithms based on TEG mono-analysis are still used in many institutions. In light of more recent findings, we discuss here the limitations and inaccuracies of the mono-analysis approach. Research shows that both α-angle and maximum amplitude parameters reflect the combined contribution of fibrinogen and platelets to clot strength. Therefore, although TEG mono-analysis is useful for identifying a coagulopathic state, it cannot be used to discriminate between fibrin/fibrinogen and/or platelet deficits, respectively. Conversely, the use of viscoelastic methods where 2 assays can be run simultaneously, one with platelet inhibitors and one without, can effectively allow for the identification of specific coagulopathic states, such as insufficient fibrin formation or an insufficient contribution of platelets to clot strength. Such information is critical for making the appropriate choice of hemostatic therapy.
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Affiliation(s)
- Cristina Solomon
- From the *CSL Behring, Marburg, Germany; †Department of Anesthesiology, Perioperative Care and General Intensive Care, Paracelsus Medical University, Salzburg University Hospital, Salzburg, Austria; ‡Ludwig Boltzmann Institute for Experimental and Clinical Traumatology and AUVA Research Centre, Vienna, Austria; §Department of Anesthesiology and Intensive Care, AUVA Trauma Hospital of Salzburg, Salzburg, Austria; and ∥Department of Anesthesiology and Intensive Care, AUVA Trauma Hospital of Klagenfurt, Klagenfurt, Austria
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Correction of acute traumatic coagulopathy with small-volume 7.5% NaCl adenosine, lidocaine, and Mg2+ occurs within 5 minutes: a ROTEM analysis. J Trauma Acute Care Surg 2015; 78:773-83. [PMID: 25807406 DOI: 10.1097/ta.0000000000000587] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Acute traumatic coagulopathy is a major contributor to mortality and morbidity following hemorrhagic shock. Our aim was to examine the effect of small-volume 7.5% NaCl with adenosine, lidocaine, and Mg (ALM) resuscitation on the timing of correction of coagulopathy in the rat model of severe hemorrhagic shock using ROTEM. METHODS Male rats (300-450 g, n = 64) were randomly assigned to (1) baseline, (2) sham, (3) bleed, (4) shock, (5) 7.5% NaCl for 5 minutes, (6) 7.5% NaCl with ALM for 5 minutes, (7) 7.5% NaCl for 60 minutes, or (8) 7.5% NaCl with ALM for 60 minutes (all n = 8). For resuscitation, 0.3-mL intravenous bolus of 7.5% NaCl was administered with and without ALM (n = 8 each group). Hemodynamics and coagulopathy were assessed. RESULTS After hemorrhage, prothrombin time (PT) and activated partial thromboplastin time (aPTT) increased approximately four to six times, and ROTEM indicated hypocoagulopathy. After 60-minute shock, no sustainable clots could form. 7.5% NaCl increased mean arterial pressure (MAP) to 46 ± 2 mm Hg at 5 minutes and generated a weak clot in EXTEM with hyperfibrinolysis in all tests. At 60 minutes, 7.5% NaCl failed to sustain MAP (43 ± 5 mm Hg) and generate a viable clot. In direct contrast, 7.5% NaCl with ALM at 5 minutes resuscitated MAP to 64 ± 3 mm Hg, corrected PT and aPTT, and generated fully formed EXTEM and FIBTEM clots. At 60 minutes, MAP was 69 ± 5 mm Hg, PT and aPTT were fully corrected, and α angle, clot amplitudes (A10, A30), as well as clot firmness and elasticity were not significantly different from baseline. ALM clot lysis at 60 minutes was significantly less than bleed, shock, or 7.5% NaCl, indicating protection against hyperfibrinolysis. CONCLUSION Small-volume 7.5% NaCl failed to resuscitate and correct coagulopathy. In contrast, 7.5% NaCl with ALM resuscitated MAP and corrected coagulopathy at 5 minutes, with further improvements at 60 minutes in clot kinetics, propagation, and firmness. ALM fully reversed hyperfibrinolysis to baseline. The possible mechanisms are discussed.
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Brinck T, Handolin L, Lefering R. The Effect of Evolving Fluid Resuscitation on the Outcome of Severely Injured Patients: An 8-year Experience at a Tertiary Trauma Center. Scand J Surg 2015; 105:109-16. [PMID: 25989810 DOI: 10.1177/1457496915586650] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Accepted: 04/04/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND AIMS Fluid resuscitation of severely injured patients has shifted over the last decade toward less crystalloids and more blood products. Helsinki University trauma center implemented the massive transfusion protocol in the end of 2009. The aim of the study was to review the changes in fluid resuscitation and its influence on outcome of severely injured patients with hemodynamic compromise treated at the single tertiary trauma center. MATERIAL AND METHODS Data on severely injured patients (New Injury Severity Score > 15) from Helsinki University Hospital trauma center's trauma registry was reviewed over 2006-2013. The isolated head-injury patients, patients without hemodynamic compromise on admission (systolic blood pressure > 90 or base excess > -5.0), and those transferred in from another hospital were excluded. The primary outcome measure was 30-day in-hospital mortality. The study period was divided into three phases: 2006-2008 (pre-protocol, 146 patients), 2009-2010 (the implementation of massive transfusion protocol, 85 patients), and 2011-2013 (post massive transfusion protocol, 121 patients). Expected mortality was calculated using the Revised Injury Severity Classification score II. The Standardized Mortality Ratio, as well as the amounts of crystalloids, colloids, and blood products (red blood cells, fresh frozen plasma, platelets) administered prehospital and in the emergency room were compared. RESULTS Of the 354 patients that were included, Standardized Mortality Ratio values decreased (indicating better survival) during the study period from 0.97 (pre-protocol), 0.87 (the implementation of massive transfusion protocol), to 0.79 (post massive transfusion protocol). The amount of crystalloids used in the emergency room decreased from 3870 mL (pre-protocol), 2390 mL (the implementation of massive transfusion protocol), to 2340 mL (post massive transfusion protocol). In these patients, the blood products' (red blood cells, fresh frozen plasma, and platelets together) relation to crystalloids increased from 0.36, 0.70, to 0.74, respectively, in three phases. CONCLUSION During the study period, no other major changes in the protocols on treatment of severely injured patients were implemented. The overall awareness of damage control fluid resuscitation and introduction of massive transfusion protocol in a trauma center has a significant positive effect on the outcome of severely injured patients.
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Affiliation(s)
- T Brinck
- Töölö Trauma Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - L Handolin
- Töölö Trauma Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - R Lefering
- Institute for Research in Operative Medicine (IFOM), University of Witten/Herdecke, Cologne, Germany
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Meyer MA, Ostrowski SR, Sørensen AM, Meyer ASP, Holcomb JB, Wade CE, Johansson PI, Stensballe J. Fibrinogen in trauma, an evaluation of thrombelastography and rotational thromboelastometry fibrinogen assays. J Surg Res 2015; 194:581-590. [DOI: 10.1016/j.jss.2014.11.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/11/2014] [Accepted: 11/13/2014] [Indexed: 12/29/2022]
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Ekelund K, Hanke G, Stensballe J, Wikkelsøe A, Albrechtsen CK, Afshari A. Hemostatic resuscitation in postpartum hemorrhage - a supplement to surgery. Acta Obstet Gynecol Scand 2015; 94:680-692. [PMID: 25660118 DOI: 10.1111/aogs.12607] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Accepted: 10/14/2014] [Indexed: 01/28/2023]
Abstract
BACKGROUND Postpartum hemorrhage is a potentially life-threatening albeit preventable condition that persists as a leading cause of maternal death. Identification of safe and cost-effective hemostatic treatment options remains crucial as a supplement to surgery and uterotonic agents. OBJECTIVE This review summarizes the background, current evidence and recommendations with regard to the role of fibrinogen, tranexamic acid, prothrombin complex concentrate, desmopressin, and recombinant factor VIIa in the treatment of patients with postpartum hemorrhage. The benefits and evidence behind traditional standard laboratory tests and viscoelastic hemostatic assays, i.e. thromboelastography TEG(®) and thromboelastometry ROTEM(®) , are discussed. In addition we assess and elaborate on the current paradigm and evidence for transfusion of these patients. DATA SOURCES Publications between 1994 and 2014 were identified from PubMed, EMBASE, Cochrane Library databases, and ClinicalTrial.gov. RESULTS Viscoelastic hemostatic assays were found to provide a real-time continuum of coagulation and fibrinolysis when introduced as a supplement in transfusion management of postpartum hemorrhage. Fibrinogen should be considered when hypofibrinogenemia is identified. Early administration of 1-2 g tranexamic acid is recommended, followed by an additional dose in cases of ongoing bleeding. Uncontrolled hemorrhage requires early balanced transfusion. CONCLUSION Despite the lack of conclusive evidence for optimal hemostatic resuscitation in postpartum hemorrhage, the use of viscoelastic hemostatic assays, fibrinogen, tranexamic acid and balanced transfusion therapy may prove to be potentially pivotal in the treatment of postpartum hemorrhage.
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Affiliation(s)
- Kim Ekelund
- Department of Anesthesia, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Gabriele Hanke
- Department of Anesthesia, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jakob Stensballe
- Department of Anesthesia, Center of Head and Orthopedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Anne Wikkelsøe
- Department of Anesthesiology, Copenhagen University Hospital, Herlev Hospital, Herlev, Denmark
| | - Charlotte Krebs Albrechtsen
- Department of Anesthesia, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Arash Afshari
- Department of Anesthesia, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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Abstract
PURPOSE OF REVIEW There exists an imbalance between our understanding of the physiology of the blood coagulation process and the translation of this understanding into useful assays for clinical application. As technology advances, the capabilities for merging the two areas have become more attainable. Global assays have advanced our understanding of the dynamics of the blood coagulation process beyond end point assays and are at the forefront of implementation in the clinic. RECENT FINDINGS We will review recent advances in the main global assays with a focus on thrombin generation that have potential for clinical utility. These assays include direct (thrombogram, whole blood, purified systems) and indirect empirical measures of thrombin generation (thromboelastography) and mechanism-based computational models that use plasma composition data from individuals to generate thrombin generation profiles. SUMMARY Empirical thrombin generation assays (direct and indirect) and computational modeling of thrombin generation have greatly advanced our understanding of the hemostatic balance. Implementation of these types of assays and visualization approaches in the clinic will potentially provide a basis for the development of individualized patient care. Advances in both empirical and computational global assays have made the goal of predicting precrisis changes in an individual's hemostatic state one step closer.
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Transfusion therapy in paediatric trauma patients: a review of the literature. Scand J Trauma Resusc Emerg Med 2015; 23:21. [PMID: 25888054 PMCID: PMC4336766 DOI: 10.1186/s13049-015-0097-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Accepted: 01/20/2015] [Indexed: 01/12/2023] Open
Abstract
Haemorrhage is a leading cause of death in paediatric trauma patients. Predefined massive transfusion protocols (MTP) have the potential to significantly reduce mortality by treating haemorrhagic shock and coagulopathy, in adhering to the principles of haemostatic resuscitation with rapid administration of balanced ratios of packed red blood cells (RBC), fresh frozen plasma (FFP) and platelets (PLT). Because of their substantial physiological reserve, initial vital signs may not be good predictors of early haemorrhage in paediatric patients. Determining the triggers for MTP activation in paediatric trauma patients is challenging, and the optimal blood product ratio that will increase survival in massively bleeding paediatric trauma patients has yet to be determined. To date, only a few small descriptive studies and case reports have investigated the use of predefined MTP in paediatric trauma patients. MTP with increased FFP or PLT to RBC ratios combined with viscoelastic haemostatic assay (VHA) guided haemostatic resuscitation have not yet been tested in paediatric populations but based on results from adult trauma patients, this therapeutic approach seems promising. Considering the high prevalence of early coagulopathy in paediatric trauma patients, immediate identification and implementation of VHA-directed treatment of traumatic coagulopathy could ensure faster haemostasis and thereby, potentially, reduce bleeding as well as the total transfusion requirements and further improve outcome in paediatric trauma patients. Prospective randomized trials investigating this therapeutic approach in paediatric trauma patients are highly warranted.
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Blasio E, Pellegrini C, Federico A, Rocco V, Fumi M, Pancione Y, Sale S, Liberti D. Coagulation support algorithm with rapid TEG and functional fibrinogen TEG in critical bleeding: more results and less time. Crit Care 2015. [PMCID: PMC4471096 DOI: 10.1186/cc14432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
PURPOSE OF REVIEW Bleeding in trauma carries a high mortality and is increased in case of coagulopathy. Our understanding of hemostasis and coagulopathy has improved, leading to a change in the protocols for hemostatic monitoring. This review describes the current state of evidence supporting the use of viscoelastic hemostatic assays to guide trauma resuscitation. RECENT FINDINGS Viscoelastic hemostatic assays such as thrombelastography and rotational thrombelastometry have shown to reduce bleeding, transfusion of fresh frozen plasma and platelets, and possibly mortality in different surgical populations. In trauma care, viscoelastic hemostatic assays allows for rapid and timely identification of coagulopathy and individualized, goal-directed transfusion therapy. As part of the resuscitation concept, viscoelastic hemostatic assays seem to improve outcome also in trauma; however, there is a need for randomized clinical trials to confirm this. SUMMARY We are moving toward avoiding coagulopathy by individualized, goal-directed transfusion therapy, using viscoelastic hemostatic assays to guide ongoing resuscitation of actively bleeding patients in a goal-directed manner.
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Abstract
BACKGROUND Hemorrhage is a potentially preventable cause of adverse outcomes in surgical and obstetric patients. New understanding of the pathophysiology of hemorrhagic shock, including development of coagulopathy, has led to evolution of recommendations for treatment. However, no recent study has examined the legal outcomes of these claims. The authors reviewed closed anesthesia malpractice claims related to hemorrhage, seeking common factors to guide future management strategies. METHODS The authors analyzed 3,211 closed surgical or obstetric anesthesia malpractice claims from 1995 to 2011 in the Anesthesia Closed Claims Project. Claims where patient injury was attributed to hemorrhage were compared with all other surgical and obstetric claims. Risk factors for hemorrhage and coagulopathy, clinical factors, management, and communication issues were abstracted from claim narratives to identify recurrent patterns. RESULTS Hemorrhage occurred in 141 (4%) claims. Obstetrics accounted for 30% of hemorrhage claims compared with 13% of nonhemorrhage claims (P < 0.001); thoracic or lumbar spine surgery was similarly overrepresented (24 vs. 6%, P < 0.001). Mortality was higher in hemorrhage than nonhemorrhage claims (77 vs. 27%, P < 0.001), and anesthesia care was more often judged to be less than appropriate (55 vs. 38%, P < 0.001). Median payments were higher in hemorrhage versus nonhemorrhage claims ($607,750 vs. $276,000, P < 0.001). Risk factors for hemorrhage and coagulopathy were common, and initiation of transfusion therapy was commonly delayed. CONCLUSIONS Hemorrhage is a rare, but serious, cause of anesthesia malpractice claims. Understanding which patients are at risk can aid in patient referral decisions, design of institutional systems for responding to hemorrhage, and education of surgeons, obstetricians, and anesthesiologists.
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Böhmer AB, Just KS, Lefering R, Paffrath T, Bouillon B, Joppich R, Wappler F, Gerbershagen MU. Factors influencing lengths of stay in the intensive care unit for surviving trauma patients: a retrospective analysis of 30,157 cases. Crit Care 2014; 18:R143. [PMID: 25001201 PMCID: PMC4227082 DOI: 10.1186/cc13976] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 06/09/2014] [Indexed: 11/10/2022] Open
Abstract
Introduction There are many potential influencing factors that affect the duration of intensive care treatment for patients who have survived multiple trauma. Yet the respective factors’ relevance to ICU length of stay (LOS) has been rarely studied. Thus, the aim of the present study was to investigate to what extent specific factors influence ICU LOS in surviving trauma patients. Methods We retrospectively analyzed a dataset of 30,157 surviving trauma patients from the TraumaRegister DGU® who were older than six years of age and received subsequent intensive care treatment for more than one day, from 2002 to 2011. Univariate analysis and multiple linear regression analysis were used to examine 25 categorical pre- and post-trauma parameters. Results Univariate analysis confirmed the impact of all analyzed factors. In subsequent multiple linear regression analyses, coefficients ranged from -1.3 to +8.2 days. The factors that influenced the prolongation of ICU LOS most were renal failure (+8.1 days), sepsis (+7.8 days) and respiratory failure (+4.9 days). Patients spent one additional day in the ICU for every 5 additional points on the Injury Severity Score (regression coefficient +0.2 per point). Furthermore, massive transfusion (+3.3 days), invasive ventilation (+3.1 days), and an initial Glasgow Coma Scale score ≤8 (+3.0 days) had a significant impact on ICU LOS. The coefficient of determination for the model was 44% (R2). Conclusions Treatment regimens, as well as secondary effects and complications of trauma and intensive care treatment, prolong ICU LOS more than the mechanism of trauma or pre-trauma patient conditions. Successful prevention of complicated courses of illness, such as sepsis and renal and respiratory failure, could significantly abbreviate the ICU stay in trauma patients. Therefore, the staff’s attention should be focused on preventive strategies.
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Cherian A, Udupi BP. Acute coagulopathy of trauma: Mechanism, monitoring, management. World J Anesthesiol 2014; 3:111-118. [DOI: 10.5313/wja.v3.i1.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 01/14/2014] [Accepted: 02/20/2014] [Indexed: 02/06/2023] Open
Abstract
Coagulopathy is a well-known consequence of trauma and is the most common cause of mortality in the young. However, its cause and management is still controversial. A new concept in the understanding of coagulopathy in trauma is the occurrence of Acute coagulopathy of trauma (ACoT). ACoT is associated with hypo perfusion and tissue trauma as seen in massive injury. The incidence of coagulopathy increases with injury scores and is associated with higher number of ventilator days, higher morbidity and mortality. The process of coagulation is better described by the cell based model with a central role for platelets rather than the older plasma based model. This shift in our understanding supports the theory that ACoT results from the endothelial release of thrombomodulin and activated protein C in the presence of hypoperfusion. This in turn leads on to a hyperfibrinolytic and hypocoagulable state. Viscoelastic hemostatic assays are replacing the older tests like prothrombin time in the assessment of coagulopathy. These tests are accurate, determine the need for transfusion and can be performed at the point of care. Damage control resuscitation includes newer concepts like permissive hypotension, increased use of plasma as a part of massive transfusion protocols and damage control surgery.
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Abstract
Hemorrhage remains one of the leading causes of trauma-related deaths. Uncontrolled diffuse microvascular bleeding in the course of initial care is common, potentially resulting in exsanguination. Early and aggressive hemostatic intervention increases survival and reduces the incidence of massive transfusion. Thus, timely diagnosis of the underlying coagulation disorders is mandatory. It has been shown that standard coagulation tests do not sufficiently characterize trauma-induced coagulopathy (TIC). This has led to increasing interest in alternatives, such as the viscoelastic test, to diagnose TIC and to provide the basis for a goal-directed hemostatic therapy. The concept of damage control resuscitation (DCR) has been introduced widely in trauma patients with severe bleeding. This strategy addresses important confounders of the coagulation process such as hemodilution, hypothermia, and acidosis; DCR is based on a damage control surgical approach, permissive hypotension, and improvement of hemostatic competence. Many studies have shown benefit in mortality when using high ratios of fresh frozen plasma (FFP) to red blood cells (RBC) as early treatment. However, there is increased awareness that coagulation factor concentrate could be beneficial in the treatment of trauma-induced coagulopathy.
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Affiliation(s)
- Herbert Schöchl
- Department of Anaesthesiology and Intensive Care Medicine, AUVA Trauma Centre, Salzburg, Austria.
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