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Weather and Prehospital Predictors of Trauma Patient Mortality in a Rural American State. SURGERY IN PRACTICE AND SCIENCE 2022. [DOI: 10.1016/j.sipas.2022.100066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Abstract
PURPOSE OF REVIEW Posttraumatic bleeding following major trauma is life threatening for the patient and remains a major global health issue. Bleeding after major trauma is worsened by trauma-induced coagulopathy (TIC). TIC consists of acute trauma coagulopathy and resuscitation coagulopathy. The early diagnosis and management of prehospital TIC management are challenging. RECENT FINDINGS Concepts for early diagnosis and management of civilian prehospital TIC management are evolving. The feasibility of prehospital blood component as well as coagulation factor transfusion has been proven. SUMMARY Due to different national guidelines and regulations of blood component therapies there is a wide heterogeneity in concepts of prehospital damage control resuscitation. Tranexamic acid administration is widely accepted, whereas the transfusion of whole blood, blood components, or coagulations factors needs further examination in the civilian setting.
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Schober P, Bossers SM, Koolwijk J, Terra M, Schwarte LA. Prehospital coagulation measurement by a portable blood analyzer in a helicopter emergency medical service (HEMS). Am J Emerg Med 2021; 46:137-140. [PMID: 33906029 DOI: 10.1016/j.ajem.2021.04.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/03/2021] [Accepted: 04/08/2021] [Indexed: 10/21/2022] Open
Abstract
In helicopter emergency medical services, HEMS, coagulopathy presents both in trauma (e.g. consumption of coagulation factors) and non-trauma cases (e.g. anticoagulant use). Therefore, in HEMS coagulation measurements appear promising and Prothrombin Time (PT) and derived INR are attractive variables herein. We tested the feasibility of prehospital PT/INR coagulation measurements in HEMS. This study was performed at the Dutch HEMS, using a portable blood analyzer (i-Stat®1, Abbott). PT/INR measurements were performed on (hemodiluted) author's blood, and both trauma- and non-trauma HEMS patients. Device-related benefits of the i-Stat PT/INR system were portability, speed and ease of handling. Limitations included a rather narrow operational temperature range (16-30 °C). PT/INR measurements (n = 15) were performed on hemodiluted blood, and both trauma and non-trauma patients. The PT/INR results confirmed effects of hemodilution and anticoagulation, however, most measurement results were in the normal INR-range (0.9-1.2). We conclude that prehospital PT/INR measurements, although with limitations, are feasible in HEMS operations.
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Affiliation(s)
- Patrick Schober
- Department of Anesthesiology, Amsterdam University Medical Center, Amsterdam, Netherlands; HEMS Life Liner 1, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Sebastiaan M Bossers
- Department of Anesthesiology, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Jasper Koolwijk
- Department of Anesthesiology, Amsterdam University Medical Center, Amsterdam, Netherlands.
| | - Maartje Terra
- HEMS Life Liner 1, Amsterdam University Medical Center, Amsterdam, Netherlands; Department of Traumatology, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Lothar A Schwarte
- Department of Anesthesiology, Amsterdam University Medical Center, Amsterdam, Netherlands; HEMS Life Liner 1, Amsterdam University Medical Center, Amsterdam, Netherlands
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Schaefer R, Long T, Wampler D, Summers R, Epley E, Waltman E, Eastridge B, Jenkins D. Operationalizing the Deployment of Low-Titer O-Positive Whole Blood Within a Regional Trauma System. Mil Med 2021; 186:391-399. [PMID: 33499434 DOI: 10.1093/milmed/usaa283] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/16/2020] [Accepted: 08/24/2020] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION The implementation of a low-titer O+ whole blood (LTOWB) resuscitation algorithm, particularly in the prehospital environment, has several inherent challenges, including cost, limited and inconsistent supply, and the logistics of cold-chain management. The Southwest Texas Regional Advisory Council has implemented the nation's first multidisciplinary, multi-institutional regional LTOWB program. This research effort was to illustrate the successful deployment of LTOWB within a regional trauma system. MATERIALS AND METHODS A deliberate systems approach to the deployment of LTOWB was used. Tenets of this program included the active management of blood donor sources and blood supply levels to minimize wastage as a result of expiration, maximize product utilization, the use of prehospital transfusion triggers, and efforts to decrease program costs prehospital agencies. A novel LTOWB rotation system was established using the concept of a "rotation site" and "rotation center." Standardized transfusion criteria, a regional approved equipment list, a regional Prehospital Blood Product Transfusion Record, and a robust multilevel communication plan serves as the framework for the program. The San Antonio Whole Blood Consortium was developed to create a consensus driven forum to manage and guide the program. RESULTS From January 2018 to October 2019, LTOWB has been placed at 18 helicopter emergency medical services (HEMS) bases, 12 ground emergency medical service (EMS) agencies, 1 level I trauma center, and 1 level IV trauma center. A total of 450 patients have received a prehospital LTOWB transfusion. Program wide, the wastage rate of LTOWB due to expiration is between 1% and 2%. No complications related to prehospital LTOWB administration have been identified. DISCUSSION This work demonstrates a novel model for the development of a trauma system LTOWB program. The program's implementation augments remote damage control resuscitation strategies and requires the integration and collaboration of a multidisciplinary stakeholder team to optimize efficiency, performance, and safety of the program.
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Affiliation(s)
- Randall Schaefer
- Southwest Texas Regional Advisory Council (STRAC), San Antonio, TX 78227, USA
| | - Tasia Long
- Southwest Texas Regional Advisory Council (STRAC), San Antonio, TX 78227, USA
| | | | - Rena Summers
- Southwest Texas Regional Advisory Council (STRAC), San Antonio, TX 78227, USA
| | - Eric Epley
- Southwest Texas Regional Advisory Council (STRAC), San Antonio, TX 78227, USA
| | - Elizabeth Waltman
- South Texas Blood and Tissue Center (STBTC), San Antonio, TX 7820, USA
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van Turenhout EC, Bossers SM, Loer SA, Giannakopoulos GF, Schwarte LA, Schober P. Pre-hospital transfusion of red blood cells. Part 1: A scoping review of current practice and transfusion triggers. Transfus Med 2020; 30:86-105. [PMID: 32080942 PMCID: PMC7317877 DOI: 10.1111/tme.12667] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/18/2019] [Accepted: 01/16/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVES The primary aim of this scoping review is to describe the current use of pre-hospital transfusion of red blood cells (PHTRBC) and to evaluate criteria used to initiate PHTRBC. The effects on patients' outcomes will be reviewed in Part 2. BACKGROUND Haemorrhage is a preventable cause of death in trauma patients, and transfusion of red blood cells is increasingly used by Emergency Medical Services (EMS) for damage control resuscitation. However, there are no guidelines and little consensus on when to initiate PHTRBC. METHODS PubMed and Web of Science were searched through January 2019; 71 articles were included. RESULTS Transfusion triggers vary widely and involve vital signs, clinical signs of poor tissue perfusion, point of care measurements and pre-hospital ultrasound imaging. In particular, hypotension (most often defined as systolic blood pressure ≤ 90 mmHg), tachycardia (most often defined as heart rate ≥ 120/min), clinical signs of poor perfusion (eg, prolonged capillary refill time or changes in mental status) and injury type (ie, penetrating wounds) are common pre-hospital transfusion triggers. CONCLUSIONS PHTRBC is increasingly used by Emergency Medical Services, but guidelines on when to initiate transfusion are lacking. We identified the most commonly used transfusion criteria, and these findings may provide the basis for consensus-based pre-hospital transfusion protocols.
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Affiliation(s)
| | - Sebastiaan M. Bossers
- Department of AnaesthesiologyAmsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Stephan A. Loer
- Department of AnaesthesiologyAmsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Georgios F. Giannakopoulos
- Department of Trauma SurgeryAmsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Helicopter Emergency Medical Service “Lifeliner 1”Amsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Lothar A. Schwarte
- Department of AnaesthesiologyAmsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Helicopter Emergency Medical Service “Lifeliner 1”Amsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Patrick Schober
- Department of AnaesthesiologyAmsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Helicopter Emergency Medical Service “Lifeliner 1”Amsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
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van Turenhout EC, Bossers SM, Loer SA, Giannakopoulos GF, Schwarte LA, Schober P. Pre-hospital transfusion of red blood cells. Part 2: A systematic review of treatment effects on outcomes. Transfus Med 2020; 30:106-133. [PMID: 31903684 PMCID: PMC7317762 DOI: 10.1111/tme.12659] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/06/2019] [Indexed: 12/11/2022]
Abstract
The primary aim of this systematic review is to describe the effects of prehospital transfusion of red blood cells (PHTRBC) on patient outcomes. Damage control resuscitation attempts to prevent death through haemorrhage in trauma patients. In this context, transfusion of red blood cells is increasingly used by emergency medical services (EMS). However, evidence on the effects on outcomes is scarce. PubMed and Web of Science were searched through January 2019; 55 articles were included. No randomised controlled studies were identified. While several observational studies suggest an increased survival after PHTRBC, consistent evidence for beneficial effects of PHTRBC on survival was not found. PHTRBC appears to improve haemodynamic parameters, but there is no evidence that shock on arrival to hospital is averted, nor of an association with trauma induced coagulopathy or with length of stay in hospitals or intensive care units. In conclusion, PHTRBC is increasingly used by EMS, but there is no strong evidence for effects of PHTRBC on mortality. Further research with study designs that allow causal inferences is required for more conclusive evidence. The combination of PHTRBC with plasma, as well as the use of individualised transfusion criteria, may potentially show more benefits and should be thoroughly investigated in the future. The review was registered at Prospero (CRD42018084658).
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Affiliation(s)
| | - Sebastiaan M. Bossers
- Department of Anaesthesiology, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Stephan A. Loer
- Department of Anaesthesiology, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Georgios F. Giannakopoulos
- Department of Trauma Surgery, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
- Helicopter Emergency Medical Service “Lifeliner 1”, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Lothar A. Schwarte
- Department of Anaesthesiology, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
- Helicopter Emergency Medical Service “Lifeliner 1”, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Patrick Schober
- Department of Anaesthesiology, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
- Helicopter Emergency Medical Service “Lifeliner 1”, Amsterdam UMCVrije Universiteit AmsterdamAmsterdamThe Netherlands
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Schober P, Bossers SM, Krage R, De Leeuw MA, Schwarte LA. Portable Blood (Gas) Analyzer in a Helicopter Emergency Medical Service. Air Med J 2019; 38:302-304. [PMID: 31248543 DOI: 10.1016/j.amj.2019.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/15/2019] [Accepted: 04/24/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION In prehospital helicopter emergency medical services (HEMS), the medical team frequently manages critical patients with only limited, noninvasive monitoring options on-site and during HEMS transport. To gain deeper insight into the patient's pathology and to track prehospital treatment effects, a point-of-care blood (gas) analyzer appears desirable also in HEMS. Thus, we hypothesized that prehospital blood (gas) analysis is feasible in the HEMS setting. METHODS A prehospital evaluation of a portable blood (gas) analyzer (i-Stat 1; Abbott, Chicago, IL) with appropriate laboratory cartridges was performed within the Dutch HEMS Lifeliner 1, serving a region of ∼4.5 million inhabitants. Venous blood (gas) measurements were performed in our HEMS collective in both trauma and nontrauma cases. RESULTS The HEMS team identified benefits (eg, portability and speed) and limitations (eg, a narrow operational temperature range) regarding the tested blood (gas) analyzer. Regarding the actual blood (gas) results, the team collected results without major abnormalities but also cases identifying major pathologies, including several cases of marked acidosis, refractory hypoglycemia, or severe anemia. CONCLUSION In conclusion, portable blood (gas) analysis proved feasible in an HEMS operation but with relevant limitations. Future studies will have to show how these limitations can be overcome and how the implementation of portable blood (gas) analyzers may support improved patient outcome.
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Affiliation(s)
- Patrick Schober
- Department of Anesthesiology, VU University Medical Center, Amsterdam, The Netherlands; Helicopter Emergency Medical Service Life Liner 1, VU University Medical Center, Amsterdam, The Netherlands
| | - Sebastiaan M Bossers
- Department of Anesthesiology, VU University Medical Center, Amsterdam, The Netherlands
| | - Ralf Krage
- Department of Anesthesiology, VU University Medical Center, Amsterdam, The Netherlands
| | - Marcel A De Leeuw
- Department of Anesthesiology, VU University Medical Center, Amsterdam, The Netherlands; Helicopter Emergency Medical Service Life Liner 1, VU University Medical Center, Amsterdam, The Netherlands
| | - Lothar A Schwarte
- Department of Anesthesiology, VU University Medical Center, Amsterdam, The Netherlands; Helicopter Emergency Medical Service Life Liner 1, VU University Medical Center, Amsterdam, The Netherlands.
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Shand S, Curtis K, Dinh M, Burns B. What is the impact of prehospital blood product administration for patients with catastrophic haemorrhage: an integrative review. Injury 2019; 50:226-234. [PMID: 30578085 DOI: 10.1016/j.injury.2018.11.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 11/29/2018] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Catastrophic haemorrhage is recognised as the leading cause of preventable death in trauma and is also prevalent in medical and other surgical aetiology. Prehospital blood product transfusion is increasingly available for both military and civilian emergency teams. Hospitals have well-established massive transfusion protocols for the resuscitation of this patient group, however the use and impact in the prehospital field is less understood. AIM To identify and evaluate the current knowledge surrounding prehospital blood product administration for patients with catastrophic haemorrhage. METHODS The integrative review method included systematic searching of online databases Medline, EMBASE, SCOPUS and CINAHL alongside hand-searching for primary research articles published prior to 19 November 2018. Papers were included if the population studied patients with catastrophic haemorrhage who received prehospital transfusion of blood products. The level of evidence and quality was evaluated using the NHMRC hierarchy of evidence. All identified full text articles were reviewed by all authors. RESULTS Twenty-two papers were included in the final analysis, including both civilian (16) and military (6) practice. The earliest publication for prehospital transfusion was 1999, with increasing prevalence in recent years. Findings were extracted and into two main categories; (1) transfusion processes included team staffing, product selection, and criteria for transfusion and (2) transfusion outcomes; transfusion safety, haemoglobin, hospital intervention and mortality. DISCUSSION The level of evidence specific to prehospital blood product transfusion is low, with predominantly retrospective methods and rarely sufficient sample sizes to reach statistical significance. Prehospital research is challenged by clinical and logistical variability preventing accurate cohort matching, sample sizes and inconsistent data collection. Evaluation of prehospital transfusion in isolation is also particularly problematic as multiple factors and developments in clinical practice affect patient outcomes and all samples were subject to survival bias. Conclusion The volume and strength of the available evidence prevents accurate evaluation of the intervention and definitive practice recommendations however prehospital transfusion is shown to be logistically achievable and without serious incident. The reviewed evidence broadly supports the translation of recent in-hospital studies, such as PROMTT and PROPPR. Further research specific to prehospital practice is required to guide the development of evidence-based protocols.
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Affiliation(s)
- Sophie Shand
- Susan Wakil School of Nursing, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia; NSW Ambulance, Sydney Ambulance Centre, Eveleigh, NSW, Australia.
| | - Kate Curtis
- Susan Wakil School of Nursing, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia; Illawarra Shoalhaven Local Health District, NSW, Australia
| | - Michael Dinh
- Royal Prince Alfred Hospital, NSW, Australia; Institute of Trauma and Injury Management, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
| | - Brian Burns
- Greater Sydney Area HEMS, NSW Ambulance, Australia; Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
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Prehospital Blood Product Administration Opportunities in Ground Transport ALS EMS – A Descriptive Study. Prehosp Disaster Med 2018; 33:230-236. [DOI: 10.1017/s1049023x18000274] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AbstractIntroductionHemorrhage remains the major cause of preventable death after trauma. Recent data suggest that earlier blood product administration may improve outcomes. The purpose of this study was to determine whether opportunities exist for blood product transfusion by ground Emergency Medical Services (EMS).MethodsThis was a single EMS agency retrospective study of ground and helicopter responses from January 1, 2011 through December 31, 2015 for adult trauma patients transported from the scene of injury who met predetermined hemodynamic (HD) parameters for potential transfusion (heart rate [HR]≥120 and/or systolic blood pressure [SBP]≤90).ResultsA total of 7,900 scene trauma ground transports occurred during the study period. Of 420 patients meeting HD criteria for transfusion, 53 (12.6%) had a significant mechanism of injury (MOI). Outcome data were available for 51 patients; 17 received blood products during their emergency department (ED) resuscitation. The percentage of patients receiving blood products based upon HD criteria ranged from 1.0% (HR) to 5.9% (SBP) to 38.1% (HR+SBP). In all, 74 Helicopter EMS (HEMS) transports met HD criteria for blood transfusion, of which, 28 patients received prehospital blood transfusion. Statistically significant total patient care time differences were noted for both the HR and the SBP cohorts, with HEMS having longer time intervals; no statistically significant difference in mean total patient care time was noted in the HR+SBP cohort.ConclusionsIn this study population, HD parameters alone did not predict need for ED blood product administration. Despite longer transport times, only one-third of HEMS patients meeting HD criteria for blood administration received prehospital transfusion. While one-third of ground Advanced Life Support (ALS) transport patients manifesting HD compromise received blood products in the ED, this represented 0.2% of total trauma transports over the study period. Given complex logistical issues involved in prehospital blood product administration, opportunities for ground administration appear limited within the described system.MixFM, ZielinskiMD, MyersLA, BernsKS, LukeA, StubbsJR, ZietlowSP, JenkinsDH, SztajnkrycerMD. Prehospital blood product administration opportunities in ground transport ALS EMS – a descriptive study. Prehosp Disaster Med. 2018;33(3):230–236.
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