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Fisher AD, April MD, Yazer MH, Wright FL, Cohen MJ, Maqbool B, Getz TM, Braverman MA, Schauer SG. An analysis of the effect of low titer O whole blood (LTOWB) proportions for resuscitation after trauma on 6-hour and 24-hour survival. Am J Surg 2024; 237:115900. [PMID: 39168048 DOI: 10.1016/j.amjsurg.2024.115900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/21/2024] [Accepted: 08/12/2024] [Indexed: 08/23/2024]
Affiliation(s)
- Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, NM, USA; Texas Army National Guard, Austin, TX, USA.
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Mark H Yazer
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Franklin L Wright
- Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Mitchell J Cohen
- Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Baila Maqbool
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, NM, USA
| | - Todd M Getz
- Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, CO, USA
| | - Maxwell A Braverman
- Department of Surgery, University of Texas Health at San Antonio, San Antonio, TX, USA; Department of Surgery, St. Luke's University Health Network, Bethlehem, PA, USA
| | - Steven G Schauer
- Uniformed Services University of the Health Sciences, Bethesda, MD, USA; Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, CO, USA; Departments of Anesthesiology and Emergency Medicine, University of Colorado School of Medicine, Aurora, CO, USA
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Lendrum RA, Perkins Z, Marsden M, Cochran C, Davenport R, Chege F, Fitzpatrick-Swallow V, Greenhalgh R, Wohlgemut JM, Henry CL, Singer B, Grier G, Davies G, Bunker N, Nevin D, Christian M, Campbell MK, Tai N, Johnson A, Jansen JO, Sadek S, Brohi K. Prehospital Partial Resuscitative Endovascular Balloon Occlusion of the Aorta for Exsanguinating Subdiaphragmatic Hemorrhage. JAMA Surg 2024:2821021. [PMID: 38985496 PMCID: PMC11238066 DOI: 10.1001/jamasurg.2024.2254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/04/2024] [Indexed: 07/11/2024]
Abstract
Importance Hemorrhage is the most common cause of preventable death after injury. Most deaths occur early, in the prehospital phase of care. Objective To establish whether prehospital zone 1 (supraceliac) partial resuscitative endovascular balloon occlusion of the aorta (Z1 P-REBOA) can be achieved in the resuscitation of adult trauma patients at risk of cardiac arrest and death due to exsanguination. Design, Setting, and Participants This was a prospective observational cohort study (Idea, Development, Exploration, Assessment and Long-term follow-up [IDEAL] 2A design) with recruitment from June 2020 to March 2022 and follow-up until discharge from hospital, death, or 90 days evaluating a physician-led and physician-delivered, urban prehospital trauma service in the Greater London area. Trauma patients aged 16 years and older with suspected exsanguinating subdiaphragmatic hemorrhage, recent or imminent hypovolemic traumatic cardiac arrest (TCA) were included. Those with unsurvivable injuries or who were pregnant were excluded. Of 2960 individuals attended by the service during the study period, 16 were included in the study. Exposures ZI REBOA or P-REBOA. Main Outcomes and Measures The main outcome was the proportion of patients in whom Z1 REBOA and Z1 P-REBOA were achieved. Clinical end points included systolic blood pressure (SBP) response to Z1 REBOA, mortality rate (1 hour, 3 hours, 24 hours, or 30 days postinjury), and survival to hospital discharge. Results Femoral arterial access for Z1 REBOA was attempted in 16 patients (median [range] age, 30 [17-76] years; 14 [81%] male; median [IQR] Injury Severity Score, 50 [39-57]). In 2 patients with successful arterial access, REBOA was not attempted due to improvement in clinical condition. In the other 14 patients (8 [57%] of whom were in traumatic cardiac arrest [TCA]), 11 successfully underwent cannulation and had aortic balloons inflated in Z1. The 3 individuals in whom cannulation was unsuccessful were in TCA (failure rate = 3/14 [21%]). Median (IQR) pre-REBOA SBP in the 11 individuals for whom cannulation was successful (5 [46%] in TCA) was 47 (33-52) mm Hg. Z1 REBOA plus P-REBOA was associated with a significant improvement in BP (median [IQR] SBP at emergency department arrival, 101 [77-107] mm Hg; 0 of 10 patients were in TCA at arrival). The median group-level improvement in SBP from the pre-REBOA value was 52 (95% CI, 42-77) mm Hg (P < .004). P-REBOA was feasible in 8 individuals (8/11 [73%]) and occurred spontaneously in 4 of these. The 1- and 3-hour postinjury mortality rate was 9% (1/11), 24-hour mortality was 27% (3/11), and 30-day mortality was 82% (9/11). Survival to hospital discharge was 18% (2/11). Both survivors underwent early Z1 P-REBOA. Conclusions and Relevance In this study, prehospital Z1 P-REBOA is feasible and may enable early survival, but with a significant incidence of late death. Trial Registration ClinicalTrials.gov Identifier: NCT04145271.
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Affiliation(s)
- Robbie A. Lendrum
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Zane Perkins
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Max Marsden
- Bart’s Health National Health Service Trust, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
- Academic Department of Military Surgery and Trauma, Research and Clinical Innovation, Defense Medical Services, Birmingham, United Kingdom
| | - Claire Cochran
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Ross Davenport
- Bart’s Health National Health Service Trust, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Frank Chege
- London’s Air Ambulance, London, United Kingdom
| | | | - Rob Greenhalgh
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
| | - Jared M. Wohlgemut
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | | | - Ben Singer
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Gareth Grier
- Bart’s Health National Health Service Trust, London, United Kingdom
| | | | - Nick Bunker
- Bart’s Health National Health Service Trust, London, United Kingdom
| | - Daniel Nevin
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Mike Christian
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
- Department of Critical Care Medicine, University British Columbia, Vancouver, British Columbia, Canada
| | - Marion K. Campbell
- Health Services Research Unit, University of Aberdeen, Aberdeen, Scotland
| | - Nigel Tai
- Bart’s Health National Health Service Trust, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
- Academic Department of Military Surgery and Trauma, Research and Clinical Innovation, Defense Medical Services, Birmingham, United Kingdom
| | | | - Jan O. Jansen
- Department of Surgery, University of Alabama at Birmingham
| | - Samy Sadek
- Bart’s Health National Health Service Trust, London, United Kingdom
- London’s Air Ambulance, London, United Kingdom
| | - Karim Brohi
- Bart’s Health National Health Service Trust, London, United Kingdom
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
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Schellenberg M, Owattanapanich N, Ugarte C, Grigorian A, Nahmias J, Lam L, Martin MJ, Inaba K. Witnessed prehospital traumatic arrest: predictors of survival to hospital discharge. Eur J Trauma Emerg Surg 2024; 50:959-965. [PMID: 38087080 DOI: 10.1007/s00068-023-02398-3] [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: 08/02/2023] [Accepted: 11/03/2023] [Indexed: 07/16/2024]
Abstract
PURPOSE Trauma patients are rapidly transported to the hospital for definitive care. Nonetheless, some are alive upon Emergency Medical Services (EMS) arrival but arrest on-scene or during transport. The study objective was to examine EMS-witnessed traumatic arrests to define patients who survived hospital discharge. METHODS Patients sustaining EMS-witnessed traumatic arrest and entered into the National Trauma Data Bank were included (2007-2018). Mortality defined groups: survival to hospital discharge vs. in-hospital death vs. death in ED/declared dead on arrival (DOA). ANOVA/Chi-square compared cohorts. Multivariable analysis established factors associated with survival out of ED and to hospital discharge. RESULTS After exclusions, 14,177 patients met the criteria: 10% survived, 22% died in hospital, and 68% died in ED/DOA. Survivors tended to be female (33% vs. 23% vs. 23%, p < 0.001), blunt traumas (71% vs. 56% vs. 60%, p < 0.001), have higher scene GCS (15 [7-15] vs. 3 [3-11] vs. 3 [3-7], p < 0.001), and lower injury severity (ISS 13 [7-26] vs. 27 [18-41] vs. 25 [10-30], p < 0.001), particularly of the head (AIS 0 [0-2] vs. 0 [0-4] vs. 1 [0-4], p < 0.001). Survival to hospital discharge was independently associated with higher field GCS (OR 1.252, p < 0.001) and SBP (OR 1.006, p < 0.001), and Head AIS scores (OR 1.073, p < 0.001). Increasing age (OR 0.984, p < 0.001), higher ISS (OR 0.975, p < 0.001), male sex (OR 0.695, p < 0.001), and penetrating mechanism of injury (OR 0.537, p < 0.001) were associated with reduced survival to discharge. CONCLUSION After EMS-witnessed traumatic cardiac arrest, survivors were more likely to be young, female, injured by blunt trauma, and less hypotensive/comatose on-scene. These findings may have implications for ED resuscitation or declaration of care futility and should be further investigated with a prospective multicenter study.
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Affiliation(s)
- Morgan Schellenberg
- Division of Trauma and Surgical Critical Care, LAC + USC Medical Center, University of Southern California, 2051 Marengo Street, Inpatient Tower, C5L100, Los Angeles, CA, 90033, USA.
| | - Natthida Owattanapanich
- Division of Trauma and Surgical Critical Care, LAC + USC Medical Center, University of Southern California, 2051 Marengo Street, Inpatient Tower, C5L100, Los Angeles, CA, 90033, USA
| | - Chaiss Ugarte
- Division of Trauma and Surgical Critical Care, LAC + USC Medical Center, University of Southern California, 2051 Marengo Street, Inpatient Tower, C5L100, Los Angeles, CA, 90033, USA
| | - Areg Grigorian
- Division of Acute Care Surgery, University of California Irvine, Irvine, CA, USA
| | - Jeffry Nahmias
- Division of Acute Care Surgery, University of California Irvine, Irvine, CA, USA
| | - Lydia Lam
- Division of Trauma and Surgical Critical Care, LAC + USC Medical Center, University of Southern California, 2051 Marengo Street, Inpatient Tower, C5L100, Los Angeles, CA, 90033, USA
| | - Matthew J Martin
- Division of Trauma and Surgical Critical Care, LAC + USC Medical Center, University of Southern California, 2051 Marengo Street, Inpatient Tower, C5L100, Los Angeles, CA, 90033, USA
| | - Kenji Inaba
- Division of Trauma and Surgical Critical Care, LAC + USC Medical Center, University of Southern California, 2051 Marengo Street, Inpatient Tower, C5L100, Los Angeles, CA, 90033, USA
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Lim HJ, Park JH, Hong KJ, Song KJ, Shin SD. Association between out-of-hospital cardiac arrest quality indicator and prehospital management and clinical outcomes for major trauma. Injury 2024; 55:111437. [PMID: 38403567 DOI: 10.1016/j.injury.2024.111437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/24/2024] [Accepted: 02/13/2024] [Indexed: 02/27/2024]
Abstract
INTRODUCTION It is unclear whether emergency medical service (EMS) agencies with good out-of-hospital cardiac arrest (OHCA) quality indicators also perform well in treating other emergency conditions. We aimed to evaluate the association of an EMS agency's non-traumatic OHCA quality indicators with prehospital management processes and clinical outcomes of major trauma. METHODS This retrospective cross-sectional study analyzed data from registers of nationwide, population-based OHCA (adult EMS-treated non-traumatic OHCA patients from 2017 to 2018) and major trauma (adult, EMS-treated, and injury severity score ≥16 trauma patients in 2018) in South Korea. We developed a prehospital ROSC prediction model to categorize EMS agencies into quartiles (Q1-Q4) based on the observed-to-expected (O/E) ROSC ratio for each EMS agency. We evaluated the national EMS protocol compliance of on-scene management according to O/E ROSC ratio quartile. The association between O/E ROSC ratio quartiles and trauma-related early mortality was determined in a multi-level logistic regression model by adjusted odds ratios (OR) and 95 % confidence intervals (95 % CI). RESULTS Among 30,034 severe trauma patients, 4,836 were analyzed. Patients in Q4 showed the lowest early mortality rate (5.6 %, 5.5 %, 4.8 %, and 3.4 % in Q1, Q2, Q3, and Q4, respectively). In groups Q1 to Q4, increasing compliance with the national EMS on-scene management protocol (trauma center transport, basic airway management for patients with altered mentality, spinal motion restriction for patients with spinal injury, and intravenous access for patients with hypotension) was observed (p for trend <0.05). Multivariable multi-level logistic regression analysis showed significantly lower early mortality in Q4 than in Q1 (adjusted OR [95 % CI] 0.56 [0.35-0.91]). CONCLUSION Major trauma patients managed by EMS agencies with high success rates in achieving prehospital ROSC in non-traumatic OHCA were more likely to receive protocol-based care and exhibited lower early mortality.
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Affiliation(s)
- Hyouk Jae Lim
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, 101 Daehak-Ro, Jongno-Gu, Seoul 03080, South Korea
| | - Jeong Ho Park
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, 101 Daehak-Ro, Jongno-Gu, Seoul 03080, South Korea; Disaster Medicine Research Center, Seoul National University Medical Research Center, Seoul, South Korea.
| | - Ki Jeong Hong
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, 101 Daehak-Ro, Jongno-Gu, Seoul 03080, South Korea; Disaster Medicine Research Center, Seoul National University Medical Research Center, Seoul, South Korea
| | - Kyoung Jun Song
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, 101 Daehak-Ro, Jongno-Gu, Seoul 03080, South Korea; Disaster Medicine Research Center, Seoul National University Medical Research Center, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine and Seoul National University Boramae Medical Center, Seoul, South Korea
| | - Sang Do Shin
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, 101 Daehak-Ro, Jongno-Gu, Seoul 03080, South Korea; Disaster Medicine Research Center, Seoul National University Medical Research Center, Seoul, South Korea
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Dorken-Gallastegi A, Naar L, Argandykov D, Lagazzi E, Dowling M, Montero P, Wallace B, Pallotta JB, Beagle J, Breen K, Velmahos GC, Duggan MJ, King DR. Safety of the injectable expanding biopolymer foam for non-compressible truncal bleeding in swine. Surgery 2024; 175:1189-1197. [PMID: 38092635 DOI: 10.1016/j.surg.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/15/2023] [Accepted: 11/07/2023] [Indexed: 03/17/2024]
Abstract
BACKGROUND A novel hydrophobically modified chitosan (hm-chitosan) polymer has been previously shown to improve survival in a non-compressible intra-abdominal bleeding model in swine. We performed a 28-day survival study to evaluate the safety of the hm-chitosan polymer in swine. METHODS Female Yorkshire swine (40-50 kg) were used. A mild, non-compressible, closed-cavity bleeding model was created with splenic transection. The hm-chitosan polymer was applied intra-abdominally through an umbilical nozzle in the same composition and dose previously shown to improve survival. Animals were monitored intraoperatively and followed 28 days postoperatively for survival, signs of pain, and end-organ function. Gross pathological and microscopic evaluations were performed at the conclusion of the experiment. RESULTS A total of 10 animals were included (hm-chitosan = 8; control = 2). The 2 control animals survived through 28 days, and 7 of the 8 animals from the hm-chitosan group survived without any adverse events. One animal from the hm-chitosan group required early termination of the study for signs of pain, and superficial colonic ulcers were found on autopsy. Laboratory tests showed no signs of end-organ dysfunction after exposure to hm-chitosan after 28 days. On gross pathological examination, small (<0.5 cm) peritoneal nodules were noticed in the hm-chitosan group, which were consistent with giant-cell foreign body reaction in microscopy, presumably related to polymer remnants. Microscopically, no signs of systemic polymer embolization or thrombosis were noticed. CONCLUSION Prolonged intraperitoneal exposure to the hm-chitosan polymer was tolerated without any adverse event in the majority of animals. In the single animal that required early termination, the material did not appear to be associated with end-organ dysfunction in swine. Superficial colonic ulcers that would require surgical repair were identified in 1 out of 8 animals exposed to hm-chitosan.
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Affiliation(s)
- Ander Dorken-Gallastegi
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA. https://twitter.com/AnderDorken
| | - Leon Naar
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA. https://twitter.com/lnaar
| | - Dias Argandykov
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA. https://twitter.com/argandykov
| | - Emanuele Lagazzi
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA; Department of Surgery, Humanitas Research Hospital, Rozzano, Italy. https://twitter.com/EmanueleLagazzi
| | | | | | | | - Jessica B Pallotta
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - John Beagle
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Kerry Breen
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - George C Velmahos
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Michael J Duggan
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - David R King
- Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
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Meyer CH, Nguyen J, ElHabr A, Venkatayogi N, Steed T, Gichoya J, Sciarretta JD, Sikora J, Dente C, Lyons J, Coopersmith CM, Nguyen C, Smith RN. TiME OUT: Time-specific machine-learning evaluation to optimize ultramassive transfusion. J Trauma Acute Care Surg 2024; 96:443-454. [PMID: 37962139 PMCID: PMC10922246 DOI: 10.1097/ta.0000000000004187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
BACKGROUND Ultramassive transfusion (UMT) is a resource-demanding intervention for trauma patients in hemorrhagic shock, and associated mortality rates remains high. Current research has been unable to identify a transfusion ceiling or point where UMT transitions from lifesaving to futility. Furthermore, little consideration has been given to how time-specific patient data points impact decisions with ongoing high-volume resuscitation. Therefore, this study sought to use time-specific machine learning modeling to predict mortality and identify parameters associated with survivability in trauma patients undergoing UMT. METHODS A retrospective review was conducted at a Level I trauma (2018-2021) and included trauma patients meeting criteria for UMT, defined as ≥20 red blood cell products within 24 hours of admission. Cross-sectional data were obtained from the blood bank and trauma registries, and time-specific data were obtained from the electronic medical record. Time-specific decision-tree models predicating mortality were generated and evaluated using area under the curve. RESULTS In the 180 patients included, mortality rate was 40.5% at 48 hours and 52.2% overall. The deceased received significantly more blood products with a median of 71.5 total units compared with 55.5 in the survivors ( p < 0.001) and significantly greater rates of packed red blood cells and fresh frozen plasma at each time interval. Time-specific decision-tree models predicted mortality with an accuracy as high as 81%. In the early time intervals, hemodynamic stability, undergoing an emergency department thoracotomy, and injury severity were most predictive of survival, while, in the later intervals, markers of adequate resuscitation such as arterial pH and lactate level became more prominent. CONCLUSION This study supports that the decision of "when to stop" in UMT resuscitation is not based exclusively on the number of units transfused but rather the complex integration of patient and time-specific data. Machine learning is an effective tool to investigate this concept, and further research is needed to refine and validate these time-specific decision-tree models. LEVEL OF EVIDENCE Prognostic and Epidemiological; Level IV.
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Affiliation(s)
- Courtney H Meyer
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
- Department of Behavioral, Social and Health Sciences, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Jonathan Nguyen
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Morehouse School of Medicine, Atlanta, GA
| | - Andrew ElHabr
- Department of Operations Research, Georgia Institute of Technology, Atlanta, GA
| | - Nethra Venkatayogi
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX
| | - Tyler Steed
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - Judy Gichoya
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - Jason D Sciarretta
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - James Sikora
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - Christopher Dente
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - John Lyons
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
- Department of Surgery and Emory Critical Care Center, Emory University School of Medicine, Atlanta, GA
| | - Craig M Coopersmith
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
- Department of Surgery and Emory Critical Care Center, Emory University School of Medicine, Atlanta, GA
| | - Crystal Nguyen
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
| | - Randi N Smith
- Department of Trauma & Surgical Critical Care, Grady Health System, Atlanta, GA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
- Department of Behavioral, Social and Health Sciences, Rollins School of Public Health, Emory University, Atlanta, GA
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Marsden M, Lendrum R, Davenport R. Revisiting the promise, practice and progress of resuscitative endovascular balloon occlusion of the aorta. Curr Opin Crit Care 2023; 29:689-695. [PMID: 37861182 DOI: 10.1097/mcc.0000000000001106] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
PURPOSE OF REVIEW The use of Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) to temporarily control bleeding and improve central perfusion in critically injured trauma patients remains a controversial topic. In the last decade, select trauma services around the world have gained experience with REBOA. We discuss the recent observational data together with the initial results of the first randomized control trial and provide a view on the next steps for REBOA in trauma resuscitation. RECENT FINDINGS While the observational data continue to be conflicting, the first randomized control trial signals that in the UK, in-hospital REBOA is associated with harm. Likely a result of delays to haemorrhage control, views are again split on whether to abandon complex interventions in bleeding trauma patients and to only prioritize transfer to the operating room or to push REBOA earlier into the post injury phase, recognizing that some patients will not survive without intervention. SUMMARY Better understanding of cardiac shock physiology provides a new lens in which to evaluate REBOA through. Patient selection remains a huge challenge. Invasive blood pressure monitoring, combined with machine learning aided decision support may assist clinicians and their patients in the future. The use of REBOA should not delay definitive haemorrhage control in those patients without impending cardiac arrest.
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Affiliation(s)
- Max Marsden
- Centre for Trauma Sciences, Blizard Institute, Queen Mary University of London, UK
- Academic Department of Military Surgery and Trauma, Research and Clinical Innovation, Birmingham
| | - Robert Lendrum
- Centre for Trauma Sciences, Blizard Institute, Queen Mary University of London, UK
- London's Air Ambulance
- Department of Perioperative Medicine, St. Bartholomew's Hospital, Barts Health NHS Trust, London, UK
| | - Ross Davenport
- Centre for Trauma Sciences, Blizard Institute, Queen Mary University of London, UK
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Certain L, Rostirola JVC, Rostirola GC, Pereira JS, Gonçalves I, Gabrigna KR, Speri FD, Mendes MF, Mottin TS, da Silva I, Rodrigues JA, Schevenin JDC, de Oliveira ABR, Franceli AB, Lisboa CEC, Benites BD. Prehospital blood transfusion in Brazil: results of the first year of implementation in an emergency medical service. Hematol Transfus Cell Ther 2023:S2531-1379(23)02534-8. [PMID: 37865550 DOI: 10.1016/j.htct.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 08/01/2023] [Accepted: 08/22/2023] [Indexed: 10/23/2023] Open
Abstract
INTRODUCTION Hemorrhagic shock is the main cause of death in the prehospital environment, which highlights the need to standardize measures aiming at bleeding control and volume replacement in this environment. In Brazil, the first prehospital packed red blood cell transfusion service started in September 2020, in Bragança Paulista, state of São Paulo. OBJECTIVES Describe the trends and characteristics of patients who received prehospital transfusions prior to hospital treatment during the first year of operation. METHODS A retrospective data review was made of all patients who received transfusions from the mobile intensive care unit in Bragança Paulista over one year. RESULTS In this period, 19 patients were transfused. Since activation, the average response time was 20 min. The mean shock indexes before and after blood transfusion were 2.16 and 1.1, respectively. During the course of the 1st year of prehospital transfusions, no blood was wasted and there were no adverse effects. CONCLUSION Introduction of the prehospital packed red blood cell transfusion service was successful, with significant improvement in hemodynamic parameters.
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Affiliation(s)
- Lucas Certain
- Serviço de Atendimento Móvel de Urgência (SAMU - 192), Bragança Paulista, SP, Brazil.
| | | | | | | | | | | | | | | | | | - Israel da Silva
- Serviço de Atendimento Móvel de Urgência (SAMU - 192), Bragança Paulista, SP, Brazil
| | | | | | | | | | | | - Bruno Deltreggia Benites
- Centro de Hematologia e Hemoterapia, Universidade Estadual de Campinas (Hemocentro Unicamp), Campinas, SP, Brazil
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Bonanno FG. Management of Hemorrhagic Shock: Physiology Approach, Timing and Strategies. J Clin Med 2022; 12:jcm12010260. [PMID: 36615060 PMCID: PMC9821021 DOI: 10.3390/jcm12010260] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 12/30/2022] Open
Abstract
Hemorrhagic shock (HS) management is based on a timely, rapid, definitive source control of bleeding/s and on blood loss replacement. Stopping the hemorrhage from progressing from any named and visible vessel is the main stem fundamental praxis of efficacy and effectiveness and an essential, obligatory, life-saving step. Blood loss replacement serves the purpose of preventing ischemia/reperfusion toxemia and optimizing tissue oxygenation and microcirculation dynamics. The "physiological classification of HS" dictates the timely management and suits the 'titrated hypotensive resuscitation' tactics and the 'damage control surgery' strategy. In any hypotensive but not yet critical shock, the body's response to a fluid load test determines the cut-off point between compensation and progression between the time for adopting conservative treatment and preparing for surgery or rushing to the theater for rapid bleeding source control. Up to 20% of the total blood volume is given to refill the unstressed venous return volume. In any critical level of shock where, ab initio, the patient manifests signs indicating critical physiology and impending cardiac arrest or cardiovascular accident, the balance between the life-saving reflexes stretched to the maximum and the insufficient distal perfusion (blood, oxygen, and substrates) remains in a liable and delicate equilibrium, susceptible to any minimal change or interfering variable. In a cardiac arrest by exsanguination, the core of the physiological issue remains the rapid restoration of a sufficient venous return, allowing the heart to pump it back into systemic circulation either by open massage via sternotomy or anterolateral thoracotomy or spontaneously after aorta clamping in the chest or in the abdomen at the epigastrium under extracorporeal resuscitation and induced hypothermia. This is the only way to prevent ischemic damage to the brain and the heart. This is accomplishable rapidly and efficiently only by a direct approach, which is a crush laparotomy if the bleeding is coming from an abdominal +/- lower limb site or rapid sternotomy/anterolateral thoracotomy if the bleeding is coming from a chest +/- upper limbs site. Without first stopping the bleeding and refilling the heart, any further exercise is doomed to failure. Direct source control via laparotomy/thoracotomy, with the concomitant or soon following venous refilling, are the two essential, initial life-saving steps.
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Affiliation(s)
- Fabrizio G Bonanno
- Department of Surgery, Polokwane Provincial Hospital, Cnr Hospital & Dorp Street, Polokwane 0700, South Africa
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10
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Patel N, Edwards J, Abdou H, Stonko DP, Treffalls RN, Elansary NN, Ptak T, Morrison JJ. Characterization of cerebral blood flow during open cardiac massage in swine: Effect of volume status. Front Physiol 2022; 13:988833. [PMID: 36267585 PMCID: PMC9577397 DOI: 10.3389/fphys.2022.988833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/23/2022] [Indexed: 11/15/2022] Open
Abstract
Introduction: Patients in cardiac arrest treated with resuscitative thoracotomy and open cardiac massage (OCM) have high rates of mortality with poor neurological outcomes. The aim of this study is to quantitate cerebral perfusion during OCM using computed tomography perfusion (CTP) imaging in a swine model of normo- and hypovolemia. Methods: Anesthetized swine underwent instrumentation with right atrial and aortic pressure catheters. A catheter placed in the ascending aorta was used to administer iodinated contrast and CTP imaging acquired. Cerebral blood flow (CBF; ml/100 g of brain) and time to peak (TTP; s) were measured. Animals were then euthanized by exsanguination (hypovolemic group) or potassium chloride injection (normovolemic group) and subjected to a clamshell thoracotomy, aortic cross clamping, OCM, and repeated CTP. Data pertaining to peak coronary perfusion pressure (pCoPP; mmHg) were collected and % CoPP > 15 mmHg (% CoPP; s) calculated post hoc. Results: Normovolemic animals (n = 5) achieved superior pCoPP compared to the hypovolemic animals (n = 5) pCoPP (39.3 vs. 12.3, p < 0.001) and % CoPP (14.5 ± 1.9 vs. 30.9 ± 6.5, p < 0.001). CTP acquisition was successful and TTP elongated from spontaneous circulation, normovolemia to hypovolemia (5.7 vs. 10.8 vs. 14.8, p = 0.01). CBF during OCM was similar between hypovolemic and normovolemic groups (7.5 ± 8.1 vs. 4.9 ± 6.0, p = 0.73) which was significantly lower than baseline values (51.9 ± 12.1, p < 0.001). Conclusion: OCM in normovolemia generates superior coronary hemodynamics compared to hypovolemia. Despite this, neither generates adequate CBF as measured by CTP, compared to baseline. To improve the rate of neurologically intact survivors, novel resuscitative techniques need to be investigated that specifically target cerebral perfusion as existing techniques are inadequate.
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Affiliation(s)
- Neerav Patel
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
| | - Joseph Edwards
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
| | - Hossam Abdou
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
| | - David P. Stonko
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, United States
| | - Rebecca N. Treffalls
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
| | - Noha N. Elansary
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
| | - Thomas Ptak
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
| | - Jonathan J. Morrison
- R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, MD, United States
- *Correspondence: Jonathan J. Morrison,
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11
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Tolles J, Beiling M, Schreiber MA, Del Junco DJ, McMullan JT, Guyette FX, Wang H, Jansen JO, Meurer WJ, Mainali S, Yadav K, Lewis RJ. An adaptive platform trial for evaluating treatments in patients with life-threatening hemorrhage from traumatic injuries: Rationale and proposal. Transfusion 2022; 62 Suppl 1:S231-S241. [PMID: 35732508 DOI: 10.1111/trf.16957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/29/2022] [Accepted: 05/04/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Juliana Tolles
- Department of Emergency Medicine, Harbor-UCLA Medical Center, Torrance, California, USA.,Department of Emergency Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.,Berry Consultants, LLC, Austin, Texas, USA
| | - Marissa Beiling
- Division of Trauma, Critical Care & Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Martin A Schreiber
- Division of Trauma, Critical Care & Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Deborah J Del Junco
- Joint Trauma System, Defense Health Agency, Joint Base San Antonio Fort Sam Houston, San Antonio, Texas, USA.,Department of Emergency Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jason T McMullan
- Department of Emergency Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Francis X Guyette
- Department of Emergency Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Henry Wang
- Department of Emergency Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Jan O Jansen
- Center for Injury Science, University of Alabama at Birmingham, Birmingham, Alabama, USA.,Division of Trauma & Acute Care Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - William J Meurer
- Berry Consultants, LLC, Austin, Texas, USA.,Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Shraddha Mainali
- Department of Neurology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Kabir Yadav
- Department of Emergency Medicine, Harbor-UCLA Medical Center, Torrance, California, USA.,Department of Emergency Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Roger J Lewis
- Department of Emergency Medicine, Harbor-UCLA Medical Center, Torrance, California, USA.,Department of Emergency Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.,Berry Consultants, LLC, Austin, Texas, USA
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12
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Martín-Rodríguez F, López-Izquierdo R, Sanz-García A, Del Pozo Vegas C, Ángel Castro Villamor M, Mayo-Iscar A, Martín-Conty JL, Ortega GJ. Novel Prehospital Phenotypes and Outcomes in Adult-Patients with Acute Disease. J Med Syst 2022; 46:45. [PMID: 35596887 PMCID: PMC9123608 DOI: 10.1007/s10916-022-01825-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 04/29/2022] [Indexed: 12/05/2022]
Abstract
An early identification of prehospital phenotypes may allow health care workers to speed up and improve patients’ treatment. To determine emergency phenotypes by exclusively using prehospital clinical data, a multicenter, prospective, and observational ambulance-based study was conducted with a cohort of 3,853 adult patients treated consecutively and transferred with high priority from the scene to the hospital emergency department. Cluster analysis determined three clusters with highly different outcome scores and pathological characteristics. The first cluster presented a 30-day mortality after the index event of 45.9%. The second cluster presented a mortality of 26.3%, while mortality of the third cluster was 5.1%. This study supports the detection of three phenotypes with different risk stages and with different clinical, therapeutic, and prognostic considerations. This evidence could allow adapting treatment to each phenotype thereby helping in the decision-making process.
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Affiliation(s)
- Francisco Martín-Rodríguez
- Advanced Clinical Simulation Center. Faculty of Medicine, Valladolid University, Valladolid, Spain.
- Advanced Life Support, Emergency Medical Services (SACYL), Valladolid, Spain.
| | - Raúl López-Izquierdo
- Advanced Clinical Simulation Center. Faculty of Medicine, Valladolid University, Valladolid, Spain
- Emergency Department. Hospital, Universitario Rio Hortega, Valladolid, Spain
| | - Ancor Sanz-García
- Data Analysis Unit, Health Research Institute, Hospital de La Princesa, Madrid (IIS-IP), Spain.
| | - Carlos Del Pozo Vegas
- Advanced Clinical Simulation Center. Faculty of Medicine, Valladolid University, Valladolid, Spain
- Emergency Department. Hospital, Clínico Universitario, Valladolid, Spain
| | | | - Agustín Mayo-Iscar
- Department of Statistics and Operative Research. Faculty of Medicine, University of Valladolid, Valladolid, Spain
| | - José L Martín-Conty
- Facultad de Ciencias de La Salud, Universidad de Castilla La Mancha, Talavera de La Reina, Spain
| | - Guillermo José Ortega
- Data Analysis Unit, Health Research Institute, Hospital de La Princesa, Madrid (IIS-IP), Spain
- Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Buenos Aires, Argentina
- Science and Technology Department, Universidad Nacional de Quilmes, Bernal, Buenos Aires, Argentina
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13
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Duchesne J, Slaughter K, Puente I, Berne JD, Yorkgitis B, Mull J, Sperry J, Tessmer M, Costantini T, Berndtson AE, Kai T, Rokvic G, Norwood S, Meadows K, Chang G, Lemon BM, Jacome T, Van Sant L, Paul J, Maher Z, Goldberg AJ, Madayag RM, Pinson G, Lieser MJ, Haan J, Marshall G, Carrick M, Tatum D. Impact of time to surgery on mortality in hypotensive patients with noncompressible torso hemorrhage: An AAST multicenter, prospective study. J Trauma Acute Care Surg 2022; 92:801-811. [PMID: 35468112 DOI: 10.1097/ta.0000000000003544] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Death from noncompressible torso hemorrhage (NCTH) may be preventable with improved prehospital care and shorter in-hospital times to hemorrhage control. We hypothesized that shorter times to surgical intervention for hemorrhage control would decrease mortality in hypotensive patients with NCTH. METHODS This was an AAST-sponsored multicenter, prospective analysis of hypotensive patients aged 15+ years who presented with NCTH from May 2018 to December 2020. Hypotension was defined as an initial systolic blood pressure (SBP) ≤ 90 mm Hg. Primary outcomes of interest were time to surgical intervention and in-hospital mortality. RESULTS There were 242 hypotensive patients, of which 48 died (19.8%). Nonsurvivors had higher mean age (47.3 vs. 38.8; p = 0.02), higher mean New Injury Severity Score (38 vs. 29; p < 0.001), lower admit systolic blood pressure (68 vs. 79 mm Hg; p < 0.01), higher incidence of vascular injury (41.7% vs. 21.1%; p = 0.02), and shorter median (interquartile range, 25-75) time from injury to operating room start (74 minutes [48-98 minutes] vs. 88 minutes [61-128 minutes]; p = 0.03) than did survivors. Multivariable Cox regression showed shorter time from emergency department arrival to operating room start was not associated with improved survival (p = 0.04). CONCLUSION Patients who died arrived to a trauma center in a similar time frame as did survivors but presented in greater physiological distress and had significantly shorter times to surgical hemorrhage intervention than did survivors. This suggests that even expediting a critically ill patient through the current trauma system is not sufficient time to save lives from NCTH. Civilian prehospital advance resuscitative care starting from the patient first contact needs special consideration. LEVEL OF EVIDENCE Prognostic/Epidemiologic, Level III.
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Affiliation(s)
- Juan Duchesne
- From the Tulane University School of Medicine (J.D., K.S., D.T.), New Orleans, Louisiana; Broward Health Medical Center (I.P., J.D.B.), Fort Lauderdale; University of Florida-Jacksonville (B.Y., J.M.), Jacksonville, Florida; University of Pittsburgh (J.S., M.T.), Pittsburgh, Pennsylvania; UC San Diego Medical Center (T.C., A.E.B.), San Diego, California; University of Kentucky Chandler Medical Center (T.K., G.R.), Lexington, Kentucky; University of Texas Health Tyler (S.N., K.M.), Tyler, Texas; Mount Sinai Hospital (G.C., B.M.L.), Chicago, Illinois; Our Lady of the Lake Regional Medical Center (T.J.), Baton Rouge, Louisiana; University of New Mexico Hospital (L.V.S., J.P.), Albuquerque, New Mexico; Temple University Hospital (Z.M., A.J.G.), Philadelphia, Pennsylvania; St. Anthony Hospital (R.M.M., G.P.), Lakewood, Colorado; Research Medical Center (M.J.L.), Kansas City, Missouri; Ascension Via Christi Hospital St. Francis (J.H.), Wichita, Kansas; and Medical City Plano (G.M., M.C.), Plano, Texas
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14
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Patel N, Harfouche M, Stonko DP, Elansary N, Scalea TM, Morrison JJ. Factors Associated With Increased Mortality in Severe Abdominopelvic Injury. Shock 2022; 57:175-180. [PMID: 34468423 DOI: 10.1097/shk.0000000000001851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Associated injuries are thought to increase mortality in patients with severe abdominopelvic trauma. This study aimed to identify clinical factors contributing to increased mortality in patients with severe abdominopelvic trauma, with the hypothesis that a greater number of concomitant injuries would result in increased mortality. METHODS This was a retrospective review of the Trauma Quality Improvement Program (TQIP) database of patients ≥ 18 years with severe abdominopelvic trauma defined as having an abdominal Abbreviated Injury Score (AIS) ≥ 3 with pelvic fractures and/or iliac vessel injury (2015-2017). Primary outcome was in-hospital mortality based on concomitant body region injuries. Secondary outcomes included mortality at 6 h, 6 to 24 h, and after 24 h based on concomitant injuries, procedures performed, and transfusion requirements. RESULTS A total of 185,257 patients were included in this study. Survivors had more severely injured body regions than non-survivors (4 vs. 3, P < 0.001). Among those who died within 6 h, 28.5% of patients required a thoracic procedure and 43% required laparotomy compared to 6.3% and 22.1% among those who died after 24 h (P < 0.001). Head AIS ≥ 3 was the only body region that significantly contributed to overall mortality (OR 1.26, P < 0.001) along with laparotomy (OR 3.02, P < 0.001), neurosurgical procedures (2.82, P < 0.001) and thoracic procedures (2.28, P < 0.001). Non-survivors who died in < 6 h and 6-24 h had greater pRBC requirements than those who died after 24 h (15.5 and 19.5 vs. 8 units, P < 0.001). CONCLUSION Increased number of body regions injured does not contribute to greater mortality. Uncontrolled noncompressible torso hemorrhage rather than the burden of concomitant injuries is the major contributor to the high mortality associated with severe abdominopelvic injury.
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Affiliation(s)
- Neerav Patel
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
| | - Melike Harfouche
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
| | - David P Stonko
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
- Department of Surgery, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Noha Elansary
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
| | - Thomas M Scalea
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
| | - Jonathan J Morrison
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
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15
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Qasim Z, Butler FK, Holcomb JB, Kotora JG, Eastridge BJ, Brohi K, Scalea TM, Schwab CW, Drew B, Gurney J, Jansen JO, Kaplan LJ, Martin MJ, Rasmussen TE, Shackelford SA, Bank EA, Braude D, Brenner M, Guyette FX, Joseph B, Hinckley WR, Sperry JL, Duchesne J. Selective Prehospital Advanced Resuscitative Care - Developing a Strategy to Prevent Prehospital Deaths From Noncompressible Torso Hemorrhage. Shock 2022; 57:7-14. [PMID: 34033617 DOI: 10.1097/shk.0000000000001816] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Hemorrhage, and particularly noncompressible torso hemorrhage remains a leading cause of potentially preventable prehospital death from trauma in the United States and globally. A subset of severely injured patients either die in the field or develop irreversible hemorrhagic shock before they can receive hospital definitive care, resulting in poor outcomes. The focus of this opinion paper is to delineate (a) the need for existing trauma systems to adapt so that potentially life-saving advanced resuscitation and truncal hemorrhage control interventions can be delivered closer to the point-of-injury in select patients, and (b) a possible mechanism through which some trauma systems can train and incorporate select prehospital advanced resuscitative care teams to deliver those interventions.
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Affiliation(s)
- Zaffer Qasim
- Departments of Emergency Medicine and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Frank K Butler
- Uniformed Services University, Consultant in Tactical Combat Casualty Care, Joint Trauma System, San Antonio, Texas
| | - John B Holcomb
- Center for Injury Science, University of Alabama at Birmingham, Birmingham, Alabama
| | - Joseph G Kotora
- Navy Medicine Readiness and Training Command, Naval Medical Forces Atlantic, Portsmouth, Virginia
| | - Brian J Eastridge
- Division of Trauma and Emergency General Surgery, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Karim Brohi
- Center for Trauma Sciences, Queen Mary, University of London, London, UK
| | - Thomas M Scalea
- R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, Maryland
| | - C William Schwab
- Division of Traumatology and Surgical Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Brendon Drew
- Joint Trauma System Committee on Tactical Combat Casualty Care, Camp Pendleton, California
| | - Jennifer Gurney
- US Army Institute of Surgical Research, Defense Committee on Trauma, Joint Trauma System, San Antonio, Texas
| | - Jan O Jansen
- Center for Injury Science, University of Alabama at Birmingham, Birmingham, Alabama
| | - Lewis J Kaplan
- Division of Traumatology and Surgical Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Matthew J Martin
- Department of Surgery, Scripps Mercy Hospital, San Diego, California
| | - Todd E Rasmussen
- F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Stacy A Shackelford
- US Army Institute of Surgical Research, Defense Committee on Trauma, Joint Trauma System, San Antonio, Texas
| | - Eric A Bank
- Harris County Emergency Services District, Houston, Texas
| | - Darren Braude
- Division of Prehospital, Austere, and Disaster Medicine, The University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Megan Brenner
- Department of Surgery, University of California, Riverside, Riverside, California
| | - Francis X Guyette
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Bellal Joseph
- Division of Trauma, Critical Care, Burns, and Emergency Surgery, The University of Arizona, Tucson, Arizona
| | - William R Hinckley
- Department of Emergency Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Jason L Sperry
- Section of Trauma and Acute Care Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Juan Duchesne
- Division of Trauma, Acute Care, and Critical Care Surgery, Tulane University, New Orleans, Louisiana
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16
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Fecher A, Stimpson A, Ferrigno L, Pohlman TH. The Pathophysiology and Management of Hemorrhagic Shock in the Polytrauma Patient. J Clin Med 2021; 10:4793. [PMID: 34682916 PMCID: PMC8541346 DOI: 10.3390/jcm10204793] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 11/16/2022] Open
Abstract
The recognition and management of life-threatening hemorrhage in the polytrauma patient poses several challenges to prehospital rescue personnel and hospital providers. First, identification of acute blood loss and the magnitude of lost volume after torso injury may not be readily apparent in the field. Because of the expression of highly effective physiological mechanisms that compensate for a sudden decrease in circulatory volume, a polytrauma patient with a significant blood loss may appear normal during examination by first responders. Consequently, for every polytrauma victim with a significant mechanism of injury we assume substantial blood loss has occurred and life-threatening hemorrhage is progressing until we can prove the contrary. Second, a decision to begin damage control resuscitation (DCR), a costly, highly complex, and potentially dangerous intervention must often be reached with little time and without sufficient clinical information about the intended recipient. Whether to begin DCR in the prehospital phase remains controversial. Furthermore, DCR executed imperfectly has the potential to worsen serious derangements including acidosis, coagulopathy, and profound homeostatic imbalances that DCR is designed to correct. Additionally, transfusion of large amounts of homologous blood during DCR potentially disrupts immune and inflammatory systems, which may induce severe systemic autoinflammatory disease in the aftermath of DCR. Third, controversy remains over the composition of components that are transfused during DCR. For practical reasons, unmatched liquid plasma or freeze-dried plasma is transfused now more commonly than ABO-matched fresh frozen plasma. Low-titer type O whole blood may prove safer than red cell components, although maintaining an inventory of whole blood for possible massive transfusion during DCR creates significant challenges for blood banks. Lastly, as the primary principle of management of life-threatening hemorrhage is surgical or angiographic control of bleeding, DCR must not eclipse these definitive interventions.
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Affiliation(s)
- Alison Fecher
- Division of Acute Care Surgery, Lutheran Hospital of Indiana, Fort Wayne, IN 46804, USA; (A.F.); (A.S.)
| | - Anthony Stimpson
- Division of Acute Care Surgery, Lutheran Hospital of Indiana, Fort Wayne, IN 46804, USA; (A.F.); (A.S.)
| | - Lisa Ferrigno
- Department of Surgery, UCHealth, University of Colorado-Denver, Aurora, CO 80045, USA;
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17
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Irfan A, Juneja K, Abraham P, Smedley WA, Stephens SW, Griffin RL, Ward W, Hallmark R, Qasim Z, Carroll SL, Reiff D, Holcomb JB, Jansen JO. Advanced prehospital resuscitative care: Can we identify trauma patients who might benefit? J Trauma Acute Care Surg 2021; 91:514-520. [PMID: 33990533 DOI: 10.1097/ta.0000000000003277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Uncontrolled truncal hemorrhage remains the most common cause of potentially preventable death after injury. The notion of earlier hemorrhage control and blood product resuscitation is therefore attractive. Some systems have successfully implemented prehospital advanced resuscitative care (ARC) teams. Early identification of patients is key and is reliant on rapid decision making and communication. The purpose of this simulation study was to explore the feasibility of early identification of patients who might benefit from ARC in a typical US setting. METHODS We conducted a prospective observational/simulation study at a level I trauma center and two associated emergency medical service (EMS) agencies over a 9-month period. The participating EMS agencies were asked to identify actual patients who might benefit from the activation of a hypothetical trauma center-based ARC team. This decision was then communicated in real time to the study team. RESULTS Sixty-three patients were determined to require activation. The number of activations per month ranged from 2 to 15. The highest incidence of calls occurred between 4 pm to midnight. Of the 63 patients, 33 were transported to the trauma center. The most common presentation was with penetrating trauma. The median age was 27 years (interquartile range, 24-45 years), 75% were male, and the median Injury Severity Score was 11 (interquartile range, 7-20). Based on injury patterns, treatment received, and outcomes, it was determined that 6 (18%) of 33 patients might have benefited from ARC. Three of the patients died en-route to or soon after arrival at the trauma center. CONCLUSION The prehospital identification of patients who might benefit from ARC is possible but faces challenges. Identifying strategies to adapt existing processes may allow better utilization of the existing infrastructure and should be a focus of future efforts. LEVEL OF EVIDENCE Prognostic/Epidemiologic, level III.
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Affiliation(s)
- Ahmer Irfan
- From the Center for Injury Science (A.I., K.J., P.A., W.A.S., S.W.S., R.L.G., W.W., S.L.C., D.R., J.B.H., J.O.J.), University of Alabama at Birmingham, Birmingham; Center Point Fire District (W.W.), Center Point, Alabama; Bessemer Fire Department (R.H.), Bessemer, Alabama; and Department of Emergency Medicine (Z.Q.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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18
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Elkbuli A, Boserup B, Sen-Crowe B, Autrey C, McKenney M. Effects of mode and time of EMS transport on the rate and distribution of dead on arrival among trauma population transported to ACSCOT-verified trauma centers in the United States. Am J Emerg Med 2021; 50:264-269. [PMID: 34418717 DOI: 10.1016/j.ajem.2021.08.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/03/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Unintentional injury remains the leading cause of death for adults worldwide. We aimed to investigate the rates and distribution of dead on arrival (DOA) patients according to emergency medical services (EMS) mode of transport (MoT), EMS transport time (TT), injury severity score (ISS), and type of injury. METHODS This retrospective study utilized de-identified incident-based data from the American College of Surgeons Trauma Quality Improvement Program Participant Use File (ACS-TQIP PUF) dataset (2013-2018) to study Adult DOA patients. DOA was defined according to the data point, "arrived with no signs of life and did not recover". Patients with unknown vitals and patients with no EMS vitals at the scene (HR = 0, RR = 0, and SBP = 0) were excluded to identify DOAs who died during transport. The DOAs included for analysis were sorted into three groups based on injury severity score [low (ISS < 15), intermediate (ISS = 15-24), and severe (ISS ≥ 25)] and subdivided according to injury type (blunt vs. penetrating), EMS Mode of transport and transport times. Statistical significance was defined as p < 0.05. RESULTS The majority of the evaluated 6030 adult DOA patients were male (73.3%) and 18-64 years of age (79.6%). Most patients sustained blunt injuries (58.2%), and the most common mechanism of injury was motor vehicle collisions (MVCs). Patients who traveled by helicopter EMS (HEMS) experienced less deaths than those traveling by ground EMS (GEMS) despite transporting more severely injured patients over longer time intervals. Median HEMS TTs were greater than their GEMS counterparts for blunt and penetrating injuries across all ISS groups but were associated with fewer deaths. CONCLUSION Helicopter emergency medical service use with intermediate and severely injured patients with penetrating injuries is associated with a reduced number of DOAs. Future studies should prospectively investigate EMS performance to confirm the findings identified in this retrospective analysis. Additionally, other factors affecting pre-hospital EMS performance (e.g., geographic variations, weather-related characteristics, in-flight interventions/procedures) should be investigated. Finally, the results of this study highlight the need for standardized HEMS utilization triage criteria.
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Affiliation(s)
- Adel Elkbuli
- Department of Surgery, Division of Trauma and Surgical Critical Care, Kendall Regional Medical Center, Miami, FL, USA.
| | - Brad Boserup
- Department of Surgery, Division of Trauma and Surgical Critical Care, Kendall Regional Medical Center, Miami, FL, USA
| | - Brendon Sen-Crowe
- Department of Surgery, Division of Trauma and Surgical Critical Care, Kendall Regional Medical Center, Miami, FL, USA
| | - Cody Autrey
- Department of Surgery, Division of Trauma and Surgical Critical Care, Kendall Regional Medical Center, Miami, FL, USA
| | - Mark McKenney
- Department of Surgery, Division of Trauma and Surgical Critical Care, Kendall Regional Medical Center, Miami, FL, USA; University of South Florida, Tampa, FL, United States of America
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19
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Hurst T, Lendrum R. Advanced pre-hospital critical care and outcome after major injury: present and future. Anaesthesia 2021; 76:1450-1453. [PMID: 34106471 DOI: 10.1111/anae.15522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Affiliation(s)
- T Hurst
- Barts Health NHS Trust and London's Air Ambulance, Royal London Hospital, Whitechapel, London, UK.,Department of Critical Care, King's College Hospital, London, UK
| | - R Lendrum
- Barts Health NHS Trust and London's Air Ambulance, Royal London Hospital, Whitechapel, London, UK.,Department of Anaesthesia, Critical Care and Pain Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
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20
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Theodorou CM, Galganski LA, Jurkovich GJ, Farmer DL, Hirose S, Stephenson JT, Trappey AF. Causes of early mortality in pediatric trauma patients. J Trauma Acute Care Surg 2021; 90:574-581. [PMID: 33492107 PMCID: PMC8008945 DOI: 10.1097/ta.0000000000003045] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Trauma is the leading cause of death in children, and most deaths occur within 24 hours of injury. A better understanding of the causes of death in the immediate period of hospital care is needed. METHODS Trauma admissions younger than 18 years from 2009 to 2019 at a Level I pediatric trauma center were reviewed for deaths (n = 7,145). Patients were stratified into ages 0-6, 7-12, and 13-17 years old. The primary outcome was cause of death, with early death defined as less than 24 hours after trauma center arrival. RESULTS There were 134 (2%) deaths with a median age of 7 years. The median time from arrival to death was 14.4 hours (interquartile range, 0.5-87.8 hours). Half (54%) occurred within 24 hours. However, most patients who survived initial resuscitation in the emergency department died longer than 24 hours after arrival (69%). Traumatic brain injury was the most common cause of death (66%), followed by anoxia (9.7%) and hemorrhage (8%). Deaths from hemorrhage were most often in patients sustaining gunshot wounds (73% vs. 11% of all other deaths, p < 0.0001), more likely to occur early (100% vs. 50% of all other deaths, p = 0.0009), and all died within 6 hours of arrival. Death from hemorrhage was more common in adolescents (21.4% of children aged 13-17 vs. 6.3% of children aged 0-6, and 0% of children aged 7-12 p = 0.03). The highest case fatality rates were seen in hangings (38.5%) and gunshot wounds (9.6%). CONCLUSION Half of pediatric trauma deaths occurred within 24 hours. Death from hemorrhage was rare, but all occurred within 6 hours of arrival. This is a critical time for interventions for bleeding control to prevent death from hemorrhage in children. Analysis of these deaths can focus efforts on the urgent need for development of new hemorrhage control adjuncts in children. LEVEL OF EVIDENCE Epidemiological study, level IV.
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Affiliation(s)
- Christina M. Theodorou
- University of California Davis Medical Center, 2335 Stockton Blvd Room 5107, Sacramento, CA, 95817, USA
| | - Laura A. Galganski
- University of California Davis Medical Center, 2335 Stockton Blvd Room 5107, Sacramento, CA, 95817, USA
| | - Gregory J. Jurkovich
- University of California Davis Medical Center, 2335 Stockton Blvd Room 5107, Sacramento, CA, 95817, USA
| | - Diana L. Farmer
- University of California Davis Medical Center, 2335 Stockton Blvd Room 5107, Sacramento, CA, 95817, USA
| | - Shinjiro Hirose
- University of California Davis Medical Center, 2335 Stockton Blvd Room 5107, Sacramento, CA, 95817, USA
| | - Jacob T. Stephenson
- University of California Davis Medical Center, 2335 Stockton Blvd Room 5107, Sacramento, CA, 95817, USA. Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814
| | - A. Francois Trappey
- University of Texas Health Science Center at Houston, 6431 Fannin St Suite 5.258, Houston, TX, 77030, USA
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21
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Multidisciplinary prehospital critical care. J Trauma Acute Care Surg 2021; 89:e188-e189. [PMID: 33231953 DOI: 10.1097/ta.0000000000002858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Trivedi A, Potter DR, Miyazawa BY, Lin M, Vivona LR, Khakoo MA, Antebi B, Lee A, Ishler B, Dickerson M, Kozar R, Schreiber MA, Holcomb JB, Fitzpatrick GM, Pati S. Freeze-dried platelets promote clot formation, attenuate endothelial cell permeability, and decrease pulmonary vascular leak in a murine model of hemorrhagic shock. J Trauma Acute Care Surg 2021; 90:203-214. [PMID: 33060537 DOI: 10.1097/ta.0000000000002984] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Hemorrhagic shock (HS) and trauma induce endothelial barrier compromise, inflammation, and aberrant clotting. We have shown that fresh human platelets (Plts) and Plt extracellular vesicles mitigate vascular leak in murine models of injury. Here, we investigate the potential of freeze-dried platelets (FDPlts) to attenuate pulmonary vascular permeability, decrease inflammation, and promote clotting in a murine model of HS. METHODS Human FDPlts were characterized using in vitro assays of Plt marker expression, aggregation, coagulation, and endothelial cell permeability. An intravital model of vascular injury in the mouse cremaster muscle was used to assess the ability of FDPlts to incorporate into clots. Mouse groups subjected to controlled hemorrhage for 90 minutes were (1) lactated Ringer solution (LR), (2) FDPlts, (3) fresh human Plts, (4) murine whole blood (WB), and (5) shams (only instrumented). Hemorrhagic shock mouse endpoints included coagulation, pulmonary vascular permeability, and lung injury. RESULTS Freeze-dried Plts expressed Plt-specific markers and retained functionality similar to fresh Plts. In in vitro assays of Plt aggregation, differences were noted. In vivo, FDPlts and Plts were found to incorporate into clots in postcapillary venules in the mouse cremaster muscle. Hemorrhagic shock mice resuscitated with LR displayed increased pulmonary vascular permeability compared with sham (sham, 686.6 ± 359.7; shock-LR, 2,637 ± 954.7; p = 0.001), and treatment with FDPlts or WB attenuated permeability compared with shock: shock-FDPlts, 1,328 ± 462.6 (p = 0.05), and shock-WB, 1,024 ± 370.5 (p = 0.0108). However, human Plts (Days 1-3) did not attenuate vascular leak in HS mice compared with shock-LR (shock-Plts, 3,601 ± 1,581; p = 0.33). CONCLUSION FDPlts contribute to clot formation similar to fresh human Plts. FDPlts also attenuated vascular permeability in vitro and in vivo. Mouse WB resuscitation but not fresh human Plts attenuated vascular permeability after HS. These data suggest that the effect of FDPlts may be a suitable alternative to fresh Plts in modulating hemostasis and the endotheliopathy associated with injury.
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Affiliation(s)
- Alpa Trivedi
- From the Department of Laboratory Medicine (A.T., D.R.P., B.Y.M., M.L., L.R.V., M.A.K., S.P.), University of California, San Francisco, San Francisco, California; Cellphire (B.A., A.L., B.I., M.D., G.M.F.), Rockville; Shock Trauma Center (R.K.), University of Maryland School of Medicine, Baltimore, Maryland; Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery (M.A.S.), Oregon Health and Science University, Portland, Oregon; and Division of Acute Care Surgery (J.B.H.), University of Alabama School of Medicine, Birmingham, Alabama
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23
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Evans CCD, Li W, Seitz D. Injury-related deaths in the Ontario provincial trauma system: a retrospective population-based cohort analysis. CMAJ Open 2021; 9:E208-E214. [PMID: 33688029 PMCID: PMC8034298 DOI: 10.9778/cmajo.20200209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Although Ontario has an established trauma system, it experiences a substantial burden of morbidity and mortality from injury. Our objective was to describe patterns of fatal injury in Ontario, with a focus on location of death (out of hospital, trauma or non-trauma centre) and receipt of surgical intervention before death. METHODS We conducted a retrospective population-based cohort study using linked administrative data on fatal injuries in children and adults (no age restrictions) in Ontario between 2000 and 2016. We identified injury-related deaths in the Ontario Registrar General Death database. We developed descriptive statistics for injury characteristics and causes of death. We calculated the fatal injury incidence rate for each year of the study. The primary outcome was cause of death; the secondary outcome was receipt of surgical intervention. RESULTS The analysis included 19 408 people. The mean annual incidence of fatal injury averaged 8.7 (95% confidence interval 7.7-9.6) per 100 000. The most common mechanisms of injury were motor vehicle collisions (12 065, 62.2%), followed by gunshot wounds (3134, 16.1%) and falls (2387, 12.3%). Deaths frequently occurred out of hospital (72.6%), rather than at a trauma centre (14.2%) or non-trauma centre (13.2%). Patients treated at trauma centres were significantly more likely to receive a surgical intervention (standardized difference 0.6) than those treated at non-trauma centres. INTERPRETATION Most injury deaths in Ontario occur in the out-of-hospital setting or are managed at non-trauma centres; many patients receive no surgical intervention before death. There are likely opportunities to improve access to specialized injury care in Ontario's trauma system.
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Affiliation(s)
- Christopher C D Evans
- Department of Emergency Medicine (Evans), Queen's University; ICES Queen's (Evans, Li), Kingston, Ont.; Department of Psychiatry (Seitz), University of Calgary, Calgary, Alta.
| | - Wenbin Li
- Department of Emergency Medicine (Evans), Queen's University; ICES Queen's (Evans, Li), Kingston, Ont.; Department of Psychiatry (Seitz), University of Calgary, Calgary, Alta
| | - Dallas Seitz
- Department of Emergency Medicine (Evans), Queen's University; ICES Queen's (Evans, Li), Kingston, Ont.; Department of Psychiatry (Seitz), University of Calgary, Calgary, Alta
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24
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Shand S, Curtis K, Dinh M, Burns B. Retrieval transfusion protocol in New South Wales, Australia: A retrospective review of the first 5 years. Transfusion 2020; 61:730-737. [PMID: 33615494 DOI: 10.1111/trf.16217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Ambulance service blood transfusion is an area of rapid development. In New South Wales, Australia, the blood products carried by ambulance medical teams are often the first available to patients with critical bleeding. In addition to the blood products routinely carried by these teams, the Service created and implemented a method of initiating large-volume, mixed-product transfusions using existing blood banks: the Retrieval Transfusion Procedure (RTP). This article describes the trends and characteristics of New South Wales Ambulance RTP activations. MATERIALS AND METHODS This retrospective database review examines the patient records for all RTP activations. Key areas of investigation include logistics, product requests, population demographics, etiologies, physiology, mission timings, and transfusions. RESULTS Ambulance medical teams attended 27 531 missions in the reviewed period, 1573 patients received transfusion, and there were 138 RTP activations. Blood products were sourced from 40 banks and transported by police (46.7%), ambulance (27.1%), and helicopter (13.0%) to refueling stops (39.2%), prehospital scenes (24.2%) and hospitals (15.8%). The median time engaged on each mission was 189 minutes for metropolitan and 222 minutes for rural locations. Seventy-eight patients were transfused with RTP blood products; 83.3% were traumas, of which 63.1% were motor vehicle collisions. Up to 18 units of blood products were administered before hospital arrival. There was significant (P < .001) improvement in the mean shock index of transfused patients between the first and final observations recorded. CONCLUSIONS Ambulance service extended blood product transfusion is logistically achievable and facilitates emergency transfusions throughout the state with minimal additional infrastructure.
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Affiliation(s)
- Sophie Shand
- Susan Wakil School of Nursing, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia.,Sydney Ambulance Centre, NSW Ambulance, Eveleigh, New South Wales, Australia
| | - Kate Curtis
- Susan Wakil School of Nursing, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia.,Illawara Shoalhaven Local Health District, Warrawong, New South Wales, Australia
| | - Michael Dinh
- Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,Institute of Trauma and Injury Management, Chatswood, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Brian Burns
- Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia.,Greater Sydney Area HEMS, NSW Ambulance, Rozelle, New South Wales, Australia
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25
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In response to: Early and prehospital trauma deaths: Emergency physicians should not be alone to win the game. J Trauma Acute Care Surg 2020; 89:e117. [DOI: 10.1097/ta.0000000000002814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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