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Silver DS, Lu L, Beiriger J, Reitz KM, Khamzina Y, Neal MD, Peitzman AB, Brown JB. Association between timing of operative interventions and mortality in emergency general surgery. Trauma Surg Acute Care Open 2024; 9:e001479. [PMID: 39027653 PMCID: PMC11256066 DOI: 10.1136/tsaco-2024-001479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/26/2024] [Indexed: 07/20/2024] Open
Abstract
ABSTRACT Background Emergency general surgery (EGS) often demands timely interventions, yet data for triage and timing are limited. This study explores the relationship between hospital arrival-to-operation time and mortality in EGS patients. Study design We performed a retrospective cohort study using an EGS registry at four hospitals, enrolling adults who underwent operative intervention for a primary American Association for the Surgery of Trauma-defined EGS diagnosis between 2021 and 2023. We excluded patients undergoing surgery more than 72 hours after admission as non-urgent and defined our exposure of interest as the time from the initial vital sign capture to the skin incision timestamp. We assessed the association between operative timing quintiles and in-hospital mortality using a mixed-effect hierarchical multivariable model, adjusting for patient demographics, comorbidities, organ dysfunction, and clustering at the hospital level. Results A total of 1199 patients were included. The median time to operating room (OR) was 8.2 hours (IQR 4.9-20.5 hours). Prolonged time to OR increased the relative likelihood of in-hospital mortality. Patients undergoing an operation between 6.7 and 10.7 hours after first vitals had the highest odds of in-hospital mortality compared with operative times <4.2 hours (reference quintile) (adjusted OR (aOR) 68.994; 95% CI 4.608 to 1032.980, p=0.002). A similar trend was observed among patients with operative times between 24.4 and 70.9 hours (aOR 69.682; 95% CI 2.968 to 1636.038, p=0.008). Conclusion Our findings suggest that prompt operative intervention is associated with lower in-hospital mortality rates among EGS patients. Further work to identify the most time-sensitive populations is warranted. These results may begin to inform benchmarking for triaging interventions in the EGS population to help reduce mortality rates. Level of evidence IV.
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Affiliation(s)
- David S Silver
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Liling Lu
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Pittsburgh Trauma and Transfusion Medicine Research Center, Pittsburgh, Pennsylvania, USA
| | - Jamison Beiriger
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Katherine M Reitz
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Yekaterina Khamzina
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Matthew D Neal
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Pittsburgh Trauma and Transfusion Medicine Research Center, Pittsburgh, Pennsylvania, USA
| | - Andrew B Peitzman
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Joshua B Brown
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Jama T, Lefering R, Lauronen J, Handolin L. Factors affecting physicians' decision to start prehospital blood product transfusion in blunt trauma patients: A cohort study of Helsinki Trauma Registry. Transfusion 2024; 64 Suppl 2:S167-S173. [PMID: 38511866 DOI: 10.1111/trf.17791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Prehospital blood transfusions are increasing as a treatment for bleeding trauma patients at risk for exsanguination. Triggers for starting transfusion in the field are less studied. We analyzed the factors affecting the decision of physicians to start prehospital blood product transfusion (PHBT) in blunt adult trauma patients. STUDY DESIGN AND METHODS Data of all adult blunt trauma patients from the Helsinki Trauma Registry between March 2016 and July 2021 were retrospectively analyzed. Univariate analysis for the identification of predictive factors and multivariate regression analysis for their importance as predictive factors for the initiation of PHBT were applied. RESULTS There were 1652 patients registered in the database. A total of 556 of them were treated by a physician-level prehospital emergency care unit, of which by transfusion-capable unit in 394 patients. PHBT (red blood cells and/or plasma) was started in 19.8% of the patients. We identified three statistically highly important clinical triggers for starting PHBT: high crystalloid volume need, shock index ≥0.9, and need for prehospital pleural decompression. DISCUSSION PHBT in blunt adult trauma patients is initiated in ~20% of the patients in Southern Finland. High crystalloid volume need, shock index ≥0.9 and prehospital pleural decompression are associated with the initiation of PHBT, probably reflecting patients at high risk for bleeding.
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Affiliation(s)
- Timo Jama
- Wellbeing Services County of Päijät-Häme, Lahti, Finland
- University of Helsinki, Helsinki, Finland
| | - Rolf Lefering
- Institute for Research in Operative Medicine (IFOM), University of Witten/Herdecke, Cologne, Germany
| | - Jouni Lauronen
- University of Helsinki, Helsinki, Finland
- Finnish Red Cross Blood Service, Vantaa, Finland
| | - Lauri Handolin
- University of Helsinki, Helsinki, Finland
- Helsinki University Hospital Trauma Unit, Helsinki, Finland
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Powell B, Cramb S. The shock index predicts in-flight blood transfusion in aeromedical trauma patients. Emerg Med Australas 2024. [PMID: 38602079 DOI: 10.1111/1742-6723.14413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
OBJECTIVE To define the utility of the Triage Revised Trauma Score (TRTS), GCS/Age/arterial Pressure (GAP) score, and shock index (SI) in predicting the need for in-flight blood product administration in civilian trauma patients transported by an aeromedical platform. METHODS A retrospective chart review of 3582 aeromedical trauma cases was conducted. An initial TRTS, GAP score and SI were calculated for each patient, and the administration of in-flight blood products was also recorded. Receiver operating characteristic (ROC) curves were used to quantify the predictive discrimination of the TRTS, GAP score and SI on the need for in-flight blood product administration. RESULTS The SI showed a superior predictive value compared to the TRTS and GAP score. The SI showed an area under the curve on the ROC curve of 0.85 in both primary and inter-hospital transfer cases, indicating reasonable predictive value. CONCLUSION The SI demonstrates favourable test characteristics for predicting the need for in-flight blood product administration. Prospective validation of these results is warranted.
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Affiliation(s)
- Benjamin Powell
- LifeFlight Retrieval Medicine, Brisbane, Queensland, Australia
- Emergency Department, Ipswich General Hospital, Ipswich, Queensland, Australia
- The University of Queensland, Brisbane, Queensland, Australia
| | - Susanna Cramb
- Australian Centre for Health Services Innovation, School of Public Health & Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Jamieson Trauma Institute, Metro North Health, Brisbane, Queensland, Australia
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Facchetti G, Facchetti M, Schmal M, Lee R, Fiorelli S, Marzano TF, Lupi C, Daminelli F, Sbrana G, Massullo D, Marinangeli F. Prehospital Blood Transfusion in Helicopter Emergency Medical Services: An Italian Survey. Air Med J 2024; 43:140-145. [PMID: 38490777 DOI: 10.1016/j.amj.2023.11.007] [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: 05/24/2023] [Revised: 10/17/2023] [Accepted: 11/12/2023] [Indexed: 03/17/2024]
Abstract
OBJECTIVE Hemorrhage remains the most common cause of preventable death after trauma. Prehospital blood product (PHBP) administration may improve outcomes. No data are available about PHBP use in Italian helicopter emergency medical services (HEMS). The primary aim of this survey was to establish the degree of PHBP used throughout Italy. The secondary aims were to evaluate the main indications for their use, the opinions about PHBPs, and users' experience. METHODS The study group performed a telephone/e-mail survey of all 56 Italian HEMS bases. The questions concerned whether PHBPs were used in their HEMS bases, the frequency of transfusions, the PHBP used, and the perceived benefits. RESULTS Four of 56 HEMS bases use PHBPs. Overall, 7% have prehospital access to packed red cells and only 1 to fresh plasma. In addition to blood product administration, 4 of 4 use tranexamic acid, and 3 of 4 also use fibrinogen. Seventy-five percent use PHBPs once a month and 25% once a week. The users' experience was that PHBPs are beneficial and lifesaving. CONCLUSION Only 4 of 56 HEMS in Italy use PHBPs. There is an absolute consensus among providers on the benefit of PHBPs despite the lack of evidence on PHBP use.
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Affiliation(s)
| | - Marilisa Facchetti
- Department Anesthesiology and Critical Care, University of L'Aquila, L'Aquila, Italy
| | - Mariette Schmal
- Jeugdgezondheidszorg Zuid-Holland West, Zoetermeer, Netherlands
| | - Ronan Lee
- European Patent Office, Team Surgery, Rijswijk, Netherlands
| | - Silvia Fiorelli
- Anesthesia and Intensive Care Medicine, Department of Clinical and Surgical Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy.
| | | | - Cristian Lupi
- HEMS Bologna, Department of Anesthesia, Intensive Care and Prehospital Emergency, Maggiore Hospital Carlo Alberto Pizzardi, Azienda Unità Sanitaria Locale Bologna, Bologna, Italy
| | - Francesco Daminelli
- HEMS Bergamo, Papa Giovanni XXIII Hospital, Agenzia Regionale Emergenza Urgenza Lombardia, Bergamo, Italy
| | - Giovanni Sbrana
- HEMS Grosseto, Emergency Department, Azienda Sanitaria Locale Toscana Sud Est, Grosseto, Italy
| | - Domenico Massullo
- Anesthesia and Intensive Care Medicine, Department of Clinical and Surgical Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Franco Marinangeli
- Department Anesthesiology and Critical Care, University of L'Aquila, L'Aquila, Italy
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Sullivan TM, Sippel GJ, Gestrich-Thompson WV, Burd RS. Strategies to Obtain and Deliver Blood Products Into Critically Injured Children: A Survey of Pediatric Trauma Society Members. Pediatr Emerg Care 2024; 40:124-127. [PMID: 38286002 PMCID: PMC10842851 DOI: 10.1097/pec.0000000000003118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
OBJECTIVES Timely transfusion is associated with improved survival and a reduction in in-hospital morbidity. The benefits of early hemorrhagic shock recognition may be limited by barriers to accessing blood products and their timely administration. We examined how pediatric trauma programs obtain blood products, the types of rapid infusion models used, and the metrics tracked to improve transfusion process efficiency in their emergency department (ED). METHODS We developed and distributed a self-report survey to members of the Pediatric Trauma Society. The survey consisted of 6 initial questions, including the respondent's role and institution, whether a blood storage refrigerator was present in their ED, the rapid infuser model used to transfuse critically injured children in their ED, if their program tracked 4 transfusion process metrics, and if a video recording system was present in the trauma bay. Based on these responses, additional questions were prompted with an option for a free-text response. RESULTS We received 137 responses from 77 institutions. Most pediatric trauma programs have a blood storage refrigerator in the ED (n = 46, 59.7%) and use a Belmont rapid infuser to transfuse critically injured children (n = 45, 58.4%). The American College of Surgeons Level 1 designated trauma programs, or state-based equivalents, and "pediatric" trauma programs were more likely to have video recording systems for performance improvement review compared with lower designated trauma programs and "combined pediatric and adult" trauma programs, respectively. CONCLUSIONS Strategies to improve the timely acquisition and infusion of blood products to critically injured children are underreported. This study examined the current practices that pediatric trauma programs use to transfuse critically injured children and may provide a resource for trauma programs to cite for transfusion-related quality improvement.
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Affiliation(s)
- Travis M. Sullivan
- Division of Trauma and Burn Surgery, Children’s National Hospital, Washington, DC
| | - Genevieve J. Sippel
- Division of Trauma and Burn Surgery, Children’s National Hospital, Washington, DC
| | | | - Randall S. Burd
- Division of Trauma and Burn Surgery, Children’s National Hospital, Washington, DC
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Hough R, Cox SC, Chimelski E, Mihm FG, Tobin JM. Prehospital Critical Care Blood Product Administration: Quantifying Clinical Benefit. Dimens Crit Care Nurs 2023; 42:333-338. [PMID: 37756506 DOI: 10.1097/dcc.0000000000000608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Prehospital blood transfusion has been widely practiced in the military and is drawing renewed scrutiny after many years of civilian use. OBJECTIVE The objective of this article is to quantify the benefit derived from prehospital transfusion of blood products. METHODS Deidentified data were extracted retrospectively from the flight records of a critical care transportation program between April 2018 and January 2020. Patients who were transported before a prehospital blood transfusion protocol were compared with patients after initiation of the blood transfusion protocol. Demographic data, vital signs, laboratory analytics, and other outcome measures were analyzed. RESULTS Nine scene transport patients who met the transfusion criteria before a blood transfusion protocol were compared with 11 patients transported after initiation of the protocol. Identical outcome measures were analyzed. Patients who received prehospital blood transfusions had a statistically significantly longer hospital length of stay (16.5 vs 3.7 days, P = .03) and were more often taken directly to the operating room (80% vs 28%, P = .04). No statistically significant difference was identified when comparing mean arterial pressure, heart rate, respiratory rate, hemoglobin, hematocrit, or survival to hospital discharge. CONCLUSIONS Trauma patients who received prehospital blood transfusion had a longer hospital length of stay and were more often taken directly to the operating room, but without improvement in survival.
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Braverman MA, Schauer SG, Ciaraglia A, Brigmon E, Smith AA, Barry L, Bynum J, Cap AD, Corral H, Fisher AD, Epley E, Jonas RB, Shiels M, Waltman E, Winckler C, Eastridge BJ, Stewart RM, Nicholson SE, Jenkins DH. The impact of prehospital whole blood on hemorrhaging trauma patients: A multi-center retrospective study. J Trauma Acute Care Surg 2023; 95:191-196. [PMID: 37012617 DOI: 10.1097/ta.0000000000003908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
BACKGROUND Whole blood (WB) use has become increasingly common in trauma centers across the United States for both in-hospital and prehospital resuscitation. We hypothesize that prehospital WB (pWB) use in trauma patients with suspected hemorrhage will result in improved hemodynamic status and reduced in-hospital blood product requirements. METHODS The institutional trauma registries of two academic level I trauma centers were queried for all patients from 2015-2019 who underwent transfusion upon arrival to the trauma bay. Patients who were dead on arrival or had isolated head injuries were excluded. Demographics, injury and shock characteristics, transfusion requirements, including massive transfusion protocol (MTP) (>10 U in 24 hours) and rapid transfusion (CAT3+) and outcomes were compared between pWB and non-pWB patients. Significantly different demographic, injury characteristics and pWB were included in univariate followed by stepwise logistic regression analysis to determine the relationship with shock index (SI). Our primary objective was to determine the relationship between pWB and improved hemodynamics or reduction in blood product utilization. RESULTS A total of 171 pWB and 1391 non-pWB patients met inclusion criteria. Prehospital WB patients had a lower median Injury Severity Score (17 vs. 21, p < 0.001) but higher prehospital SI showing greater physiologic disarray. Prehospital WB was associated with improvement in SI (-0.04 vs. 0.05, p = 0.002). Mortality and (LOS) were similar. Prehospital WB patients received fewer packed red blood cells, fresh frozen plasma, and platelets units across their LOS but total units and volumes were similar. Prehospital WB patients had fewer MTPs (22.6% vs. 32.4%, p = 0.01) despite a similar requirement of CAT3+ transfusion upon arrival. CONCLUSION Prehospital WB administration is associated with a greater improvement in SI and a reduction in MTP. This study is limited by its lack of power to detect a mortality difference. Prospective randomized controlled trials will be required to determine the true impact of pWB on trauma patients. LEVEL OF EVIDENCE Prognostic and Epidemiological; Level IV.
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Affiliation(s)
- Maxwell A Braverman
- From the Department of Surgery (M.A.B., A.C., E.B., E.S., A.A.S., L.B., H.C., R.B.J., B.J.E., R.M.S., S.E.N., D.H.J.), UT Health San Antonio; Department of Emergency Medicine (S.G.S.), Brooke Army Medical Center, United States Army Institute of Surgical Research (S.G.S., A.D.C., J.B.), JBSA Fort Sam Houston; Department of Surgery (A.D.F.), University of New Mexico School of Medicine, Albuquerque, New Mexico; Southwest Texas Regional Advisory Council (E.E.); Trauma Services (M.S.), University Hospital; South Texas Blood & Tissue Center (E.W.); and Department of Emergency Health Sciences (C.W.), UT Health, San Antonio, Texas
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Prehospital Hemorrhage Control and Treatment by Clinicians: A Joint Position Statement. Ann Emerg Med 2023; 82:e1-e8. [PMID: 37349075 DOI: 10.1016/j.annemergmed.2023.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 06/24/2023]
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Deeb AP, Guyette FX, Daley BJ, Miller RS, Harbrecht BG, Claridge JA, Phelan HA, Eastridge BJ, Joseph B, Nirula R, Vercruysse GA, Sperry JL, Brown JB. Time to early resuscitative intervention association with mortality in trauma patients at risk for hemorrhage. J Trauma Acute Care Surg 2023; 94:504-512. [PMID: 36728324 PMCID: PMC10038862 DOI: 10.1097/ta.0000000000003820] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Hemorrhage is the leading cause of preventable death after injury. Others have shown that delays in massive transfusion cooler arrival increase mortality, while prehospital blood product resuscitation can reduce mortality. Our objective was to evaluate if time to resuscitation initiation impacts mortality. METHODS We combined data from the Prehospital Air Medical Plasma (PAMPer) trial in which patients received prehospital plasma or standard care and the Study of Tranexamic Acid during Air and ground Medical Prehospital transport (STAAMP) trial in which patients received prehospital tranexamic acid or placebo. We evaluated the time to early resuscitative intervention (TERI) as time from emergency medical services arrival to packed red blood cells, plasma, or tranexamic acid initiation in the field or within 90 minutes of trauma center arrival. For patients not receiving an early resuscitative intervention, the TERI was calculated based on trauma center arrival as earliest opportunity to receive a resuscitative intervention and were propensity matched to those that did to account for selection bias. Mixed-effects logistic regression assessed the association of 30-day and 24-hour mortality with TERI adjusting for confounders. We also evaluated a subgroup of only patients receiving an early resuscitative intervention as defined above. RESULTS Among the 1,504 propensity-matched patients, every 1-minute delay in TERI was associated with 2% increase in the odds of 30-day mortality (adjusted odds ratio [aOR], 1.020; 95% confidence interval [CI], 1.006-1.033; p < 0.01) and 1.5% increase in odds of 24-hour mortality (aOR, 1.015; 95% CI, 1.001-1.029; p = 0.03). Among the 799 patients receiving an early resuscitative intervention, every 1-minute increase in TERI was associated with a 2% increase in the odds of 30-day mortality (aOR, 1.021; 95% CI, 1.005-1.038; p = 0.01) and 24-hour mortality (aOR, 1.023; 95% CI, 1.005-1.042; p = 0.01). CONCLUSION Time to early resuscitative intervention is associated with morality in trauma patients with hemorrhagic shock. Bleeding patients need resuscitation initiated early, whether at the trauma center in systems with short prehospital times or in the field when prehospital time is prolonged. LEVEL OF EVIDENCE Therapeutic/Care Management; Level III.
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Affiliation(s)
- Andrew-Paul Deeb
- From the Division of Trauma and General Surgery, Department of Surgery (A.-P.D., J.B.B.), and Department of Emergency Medicine (F.X.G.), University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery (B.J.D.), University of Tennessee Health Science Center, Knoxville, Tennessee; Department of Surgery (R.S.M.), John Peter Smith Health Network, Fort Worth, Texas; Department of Surgery (B.G.H.), University of Louisville, Louisville, Kentucky;Department of Surgery (J.A.C.), MetroHealth Medical Center/Case Western Reserve University, Cleveland, Ohio; Department of Surgery (H.A.P.), Louisiana State University Health Sciences Center-New Orleans, New Orleans, Louisiana; Department of Surgery (B.J.E.), University of Texas Health San Antonio, San Antonio, Texas; Department of Surgery (B.J., G.A.V.), University of Arizona, Tucson, Arizona; Department of Surgery (R.N.), University of Utah, Salt Lake City, Utah; Division of Trauma and General Surgery, Department of Surgery (J.L.S.), University of Pittsburgh, Pittsburgh, Pennsylvania
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Berry C, Gallagher JM, Goodloe JM, Dorlac WC, Dodd J, Fischer PE. Prehospital Hemorrhage Control and Treatment by Clinicians: A Joint Position Statement. PREHOSP EMERG CARE 2023:1-15. [PMID: 36961935 DOI: 10.1080/10903127.2023.2195487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Affiliation(s)
- Cherisse Berry
- Department of Surgery, New York University Grossman School of Medicine, New York, NY
| | | | - Jeffrey M Goodloe
- Department of Emergency Medicine, University of Oklahoma Health Sciences Center, Tulsa, OK
| | - Warren C Dorlac
- Department of Surgery, University of Colorado Health Loveland, Loveland, CO
| | - Jimm Dodd
- Stop the Bleed, American College of Surgeons, Chicago, IL
| | - Peter E Fischer
- Department of Surgery, University of Tennessee Health Science Center, Memphis, TN
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Sullivan TM, Gestrich-Thompson WV, Milestone ZP, Burd RS. Time is tissue: Barriers to timely transfusion after pediatric injury. J Trauma Acute Care Surg 2023; 94:S22-S28. [PMID: 35916621 PMCID: PMC9805480 DOI: 10.1097/ta.0000000000003752] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ABSTRACT Strategies to improve outcomes among children and adolescents in hemorrhagic shock have primarily focused on component resuscitation, pharmaceutical coagulation adjuncts, and hemorrhage control techniques. Many of these strategies have been associated with better outcomes in children, but the barriers to their use and the impact of timely use on morbidity and mortality have received little attention. Because transfusion is uncommon in injured children, few studies have identified and described barriers to the processes of using these interventions in bleeding patients, processes that move from the decision to transfuse, to obtaining the necessary blood products and adjuncts, and to delivering them to the patient. In this review, we identify and describe the steps needed to ensure timely blood transfusion and propose practices to minimize barriers in this process. Given the potential impact of time on hemorrhage associated outcomes, ensuring timely intervention may have a similar or greater impact than the interventions themselves.
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Affiliation(s)
- Travis M. Sullivan
- Division of Trauma and Burn Surgery, Children’s National Hospital, Washington, DC
| | | | - Zachary P. Milestone
- Division of Trauma and Burn Surgery, Children’s National Hospital, Washington, DC
| | - Randall S. Burd
- Division of Trauma and Burn Surgery, Children’s National Hospital, Washington, DC
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Griggs JE, Lyon RM, Sherriff M, Barrett JW, Wareham G, Ter Avest E. Predictive clinical utility of pre-hospital point of care lactate for transfusion of blood product in patients with suspected traumatic haemorrhage: derivation of a decision-support tool. Scand J Trauma Resusc Emerg Med 2022; 30:72. [PMID: 36514084 DOI: 10.1186/s13049-022-01061-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Pre-hospital emergency medical teams can transfuse blood products to patients with suspected major traumatic haemorrhage. Common transfusion triggers based on physiological parameters have several disadvantages and are largely unvalidated in guiding pre-hospital transfusion. The addition of pre-hospital lactate (P-LACT) may overcome these challenges. To date, the clinical utility of P-LACT to guide pre-hospital blood transfusion is unclear. METHODS A retrospective analysis of patients with suspected major traumatic haemorrhage attended by Air Ambulance Charity Kent Surrey Sussex (KSS) between 8 July 2017 and 31 December 2019. The primary endpoint was the accuracy of P-LACT to predict the requirement for any in-hospital (continued) transfusion of blood product. RESULTS During the study period, 306 patients with suspected major traumatic haemorrhage were attended by KSS. P-LACT was obtained in 194 patients. In the cohort 103 (34%) patients were declared Code Red. A pre-hospital transfusion was commenced in 124 patients (41%) and in-hospital transfusion was continued in 100 (81%) of these patients, in 24 (19%) patients it was ceased. Predictive probabilities of various lactate cut-off points for requirement of in-hospital transfusion are documented. The highest overall proportion correctly classified patients were found for a P-LACT cut-point of 5.4 mmol/L (76.50% correctly classified). Based on the calculated predictive probabilities, optimal cut-off points were derived for both the exclusion- and inclusion of the need for in-hospital transfusion. A P-LACT < 2.5 mmol/L had a sensitivity of 80.28% and a negative likelihood ratio [LR-] of 0.37 for the prediction of in-hospital transfusion requirement, whereas a P-LACT of 6.0 mmol/L had a specificity of 99.22%, [LR-] = 0.78. CONCLUSION Pre-hospital lactate measurements can be used to predict the need for (continued) in-hospital blood products in addition to current physiological parameters. A simple decision support tool derived in this study can help the clinician interpret pre-hospital lactate results and guide pre-hospital interventions in the major trauma patient.
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Affiliation(s)
- J E Griggs
- Air Ambulance Charity Kent Surrey Sussex, Hanger 10 Redhill Aerodrome, Redhill, RH1 5YP, UK. .,University of Surrey, School of Health Sciences, Priestley Rd, Guildford, GU2 7YH, UK.
| | - R M Lyon
- Air Ambulance Charity Kent Surrey Sussex, Hanger 10 Redhill Aerodrome, Redhill, RH1 5YP, UK.,University of Surrey, School of Health Sciences, Priestley Rd, Guildford, GU2 7YH, UK
| | - M Sherriff
- University of Bristol, Child Dental Health, Bristol Dental School, Faculty of Health Sciences, Lower Maudlin Street, Bristol, BS1 2LY, UK
| | - J W Barrett
- University of Surrey, School of Health Sciences, Priestley Rd, Guildford, GU2 7YH, UK.,South East Coast Ambulance NHS Foundation Trust, Neptune House, Gatwick, Surrey, RH10 9BG, UK
| | - G Wareham
- Air Ambulance Charity Kent Surrey Sussex, Hanger 10 Redhill Aerodrome, Redhill, RH1 5YP, UK
| | - E Ter Avest
- Air Ambulance Charity Kent Surrey Sussex, Hanger 10 Redhill Aerodrome, Redhill, RH1 5YP, UK.,Department of Emergency Medicine, University Medical Center Groningen, Groningen, The Netherlands
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Deeb AP, Hoteit L, Li S, Guyette FX, Eastridge BJ, Nirula R, Vercruysse GA, O'Keeffe T, Joseph B, Neal MD, Sperry JL, Brown JB. Prehospital synergy: Tranexamic acid and blood transfusion in patients at risk for hemorrhage. J Trauma Acute Care Surg 2022; 93:52-58. [PMID: 35393385 PMCID: PMC9233003 DOI: 10.1097/ta.0000000000003620] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Growing evidence supports improved survival with prehospital blood products. Recent trials show a benefit of prehospital tranexamic acid (TXA) administration in select subgroups. Our objective was to determine if receiving prehospital packed red blood cells (pRBC) in addition to TXA improved survival in injured patients at risk of hemorrhage. METHODS We performed a secondary analysis of all scene patients from the Study of Tranexamic Acid during Air and ground Medical Prehospital transport trial. Patients were randomized to prehospital TXA or placebo. Some participating EMS services utilized pRBC. Four resuscitation groups resulted: TXA, pRBC, pRBC+TXA, and neither. Our primary outcome was 30-day mortality and secondary outcome was 24-hour mortality. Cox regression tested the association between resuscitation group and mortality while adjusting for confounders. RESULTS A total of 763 patients were included. Patients receiving prehospital blood had higher Injury Severity Scores in the pRBC (22 [10, 34]) and pRBC+TXA (22 [17, 36]) groups than the TXA (12 [5, 21]) and neither (10 [4, 20]) groups (p < 0.01). Mortality at 30 days was greatest in the pRBC+TXA and pRBC groups at 18.2% and 28.6% compared with the TXA only and neither groups at 6.6% and 7.4%, respectively. Resuscitation with pRBC+TXA was associated with a 35% reduction in relative hazards of 30-day mortality compared with neither (hazard ratio, 0.65; 95% confidence interval, 0.45-0.94; p = 0.02). No survival benefit was observed in 24-hour mortality for pRBC+TXA, but pRBC alone was associated with a 61% reduction in relative hazards of 24-hour mortality compared with neither (hazard ratio, 0.39; 95% confidence interval, 0.17-0.88; p = 0.02). CONCLUSION For injured patients at risk of hemorrhage, prehospital pRBC+TXA is associated with reduced 30-day mortality. Use of pRBC transfusion alone was associated with a reduction in early mortality. Potential synergy appeared only in longer-term mortality and further work to investigate mechanisms of this therapeutic benefit is needed to optimize the prehospital resuscitation of trauma patients. LEVEL OF EVIDENCE Therapeutic/Care Management; Level III.
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Affiliation(s)
- Andrew-Paul Deeb
- From the Division of Trauma and General Surgery, Department of Surgery (A.-P.D., L.H., S.L., M.D.N., J.L.S., J.B.B.), Department of Emergency Medicine (F.X.G.), University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery (B.J.E.), University of Texas Health San Antonio, San Antonio, Texas; Department of Surgery (R.N.), University of Utah, Salt Lake City, Utah; and Department of Surgery (G.A.V., T.O.K., B.J.), University of Arizona, Tucson, Arizona
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Boecker C, Sitzmann N, Halblaub Miranda JL, Suhr H, Wiedemann P, Bieback K, Rudolph M, Klüter H. Noninferior Red Cell Concentrate Quality after Repeated Air Rescue Mission Transport for Prehospital Transfusion. Transfus Med Hemother 2022; 49:172-179. [PMID: 35813604 PMCID: PMC9209961 DOI: 10.1159/000520650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/29/2021] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND Transfusion of red cell concentrates (RCCs) is an integral therapy after severe hemorrhage or trauma. Prehospital transfusion offers an immediate intervention in emergency cases. Air ambulance-based prehospital transfusion, already used in different countries, is currently established in Germany. Limited information is available for regulatory-compliant transport logistics of RCCs and their quality after repeated air rescue missions. Thus, the aim of this study was (i) to validate regulatory-compliant logistics and (ii) to assess product quality, analyzing biochemical parameters and RBC morphology. STUDY DESIGN AND METHODS Due to regulatory requirements, we adapted a rotation system of 1 day transport, 1 day quarantine storage and 1 day storage over the entire RCC shelf life. RCCs transported on air rescue missions (flight group) were compared against a control group, treated identically except for helicopter transport. RCCs were visually inspected, and their temperature was documented throughout the entire rotation cycles. RCCs at the end of shelf life (end point samples) were assessed for levels of hemoglobin, hematocrit, free hemoglobin, hemolysis, mean corpuscular volume, potassium and pH. In addition, morphological changes were assessed using flow morphometry. RESULTS In total 81 RCCs were assessed in the flight group and 50 in the control group. Within the flight group, 30 RCCs were transfused. RCCs were dispatched on average 11 times (7-13 times). The average flight time was 18.3 h (6.6-28.8 h). The rotation system ensured adherence to regulatory guidelines, especially compliance to storage conditions of +2 to +6°C of intermediate storage. Biochemical and morphological quality parameters did not exhibit any changes upon repeated air rescue missions. A correlation with respect to the flight time was not observed either. DISCUSSION The quality of RCCs after repeated air rescue missions is noninferior to control samples regarding biochemical and morphological parameters. The product quality is within German regulations for up to 42 days of storage. The logistics and maintenance of the thermal conditions are safe and feasible. Thus, a rotation system of RCCs offers a regulatory-compliant option to supply air rescue missions with RCCs to allow life-saving prehospital transfusions at the incident scene.
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Affiliation(s)
- Clemens Boecker
- Department of Biotechnology, Mannheim University of Applied Sciences, Mannheim, Germany
- Institute of Transfusion Medicine and Immunology, German Red Cross Blood Service, Baden-Württemberg − Hessen, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Nicole Sitzmann
- Institute of Transfusion Medicine and Immunology, German Red Cross Blood Service, Baden-Württemberg − Hessen, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | - Hajo Suhr
- Department of Information Technology, Mannheim University of Applied Sciences, Mannheim, Germany
| | - Philipp Wiedemann
- Department of Biotechnology, Mannheim University of Applied Sciences, Mannheim, Germany
| | - Karen Bieback
- Institute of Transfusion Medicine and Immunology, German Red Cross Blood Service, Baden-Württemberg − Hessen, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Marcus Rudolph
- Scientific working group, DRF Stiftung Luftrettung gAG, Filderstadt, Germany
| | - Harald Klüter
- Institute of Transfusion Medicine and Immunology, German Red Cross Blood Service, Baden-Württemberg − Hessen, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Tucker H, Avery P, Brohi K, Davenport R, Griggs J, Weaver A, Green L. Outcome measures used in clinical research evaluating prehospital blood component transfusion in traumatically injured bleeding patients: A systematic review. J Trauma Acute Care Surg 2021; 91:1018-1024. [PMID: 34254958 DOI: 10.1097/ta.0000000000003360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Trial outcomes should be relevant to all stakeholders and allow assessment of interventions' efficacy and safety at appropriate timeframes. There is no consensus regarding outcome measures in the growing field of prehospital trauma transfusion research. Harmonization of future clinical outcome reporting is key to facilitate interstudy comparisons and generate cohesive, robust evidence to guide practice. The objective of this study was to evaluate outcome measures reported in prehospital trauma transfusion trials. METHODS Data Sources, Eligibility Criteria, Participants, and InterventionsWe conducted a scoping systematic review to identify the type, number, and definitions of outcomes reported in randomized controlled trials, and prospective and retrospective observational cohort studies investigating prehospital blood component transfusion in adult and pediatric patients with traumatic hemorrhage. Electronic database searching of PubMed, Embase, Web of Science, Cochrane, OVID, clinical trials.gov, and the Transfusion Evidence Library was completed in accordance with Preferred Reporting Items for Meta-analyses guidelines.Study Appraisal and Synthesis MethodsTwo review authors independently extracted outcome data. Unique lists of salutogenic (patient-reported health and wellbeing outcomes) and nonsalutogenic focused outcomes were established. RESULTS A total of 3,471 records were identified. Thirty-four studies fulfilled the inclusion criteria: 4 military (n = 1,566 patients) and 30 civilian (n = 14,398 patients), all between 2000 and 2020. Two hundred twelve individual non-patient-reported outcomes were identified, which collapsed into 20 outcome domains with varied definitions and timings. All primary outcomes measured effectiveness, rather than safety or complications. Sixty-nine percent reported mortality, with 11 different definitions. No salutogenic outcomes were reported. CONCLUSION There is heterogeneity in outcome reporting and definitions, an absence of patient-reported outcome, and an emphasis on clinical effectiveness rather than safety or adverse events in prehospital trauma transfusion trials. We recommend stakeholder consultation and a Delphi process to develop a clearly defined minimum core outcome set for prehospital trauma transfusion trials. LEVEL OF EVIDENCE Scoping systematic review, level III.
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Affiliation(s)
- Harriet Tucker
- From the Centre for Trauma Sciences, Blizard Institute (H.T., K.B., R.D., L.G.), Queen Mary University of London, London, United Kingdom; Southmead Hospital (P.A.), North Bristol NHS Trust, Bristol, United Kingdom; Learning and Development (P.A.), South Western Ambulance Service NHS Foundation Trust, Bristol, United Kingdom; Air Ambulance Kent Surrey Sussex (J.G., H.T.), Rochester, United Kingdom; Faculty of Health Sciences (J.G.), University of Surrey, Guildford, United Kingdom; London's Air Ambulance (A.W.), London, United Kingdom; Barts Health NHS Foundation Trust (K.B., R.D., A.W., L.G.), London, United Kingdom; and NHS Blood and Transplant (L.G.), London, United Kingdom
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Labarthe A, Mennecart T, Imfeld C, Lély P, Ausset S. Pre-hospital transfusion of post-traumatic hemorrhage: Medical and regulatory aspects. Transfus Clin Biol 2021; 28:391-396. [PMID: 34464713 DOI: 10.1016/j.tracli.2021.08.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
Data of good methodological quality have recently become available to support prehospital use of transfusion in the severe trauma setting. Consistent with recent guidelines for the implementation of damage control resuscitation in the hospital in this setting and in the wake of numerous cohort study data from wartime medicine, they are now guided by recent guidelines for the use of freeze-dried plasma. The main difficulties to overcome in order to implement a practice are of a regulatory and logistic nature.
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Affiliation(s)
- A Labarthe
- French Military medical school, 331, avenue du Général-de-Gaulle, Bron, France
| | - T Mennecart
- French Military medical school, 331, avenue du Général-de-Gaulle, Bron, France
| | - C Imfeld
- French Military medical school, 331, avenue du Général-de-Gaulle, Bron, France
| | - P Lély
- French Military medical school, 331, avenue du Général-de-Gaulle, Bron, France
| | - S Ausset
- French Military medical school, 331, avenue du Général-de-Gaulle, Bron, France.
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Edwards TH, Rizzo JA, Pusateri AE. Hemorrhagic shock and hemostatic resuscitation in canine trauma. Transfusion 2021; 61 Suppl 1:S264-S274. [PMID: 34269447 DOI: 10.1111/trf.16516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/27/2022]
Abstract
Hemorrhage is a significant cause of death among military working dogs and in civilian canine trauma. While research specifically aimed at canine trauma is limited, many principles from human trauma resuscitation apply. Trauma with significant hemorrhage results in shock and inadequate oxygen delivery to tissues. This leads to aberrations in cellular metabolism, including anaerobic metabolism, decreased energy production, acidosis, cell swelling, and eventual cell death. Considering blood and endothelium as a single organ system, blood failure is a syndrome of endotheliopathy, coagulopathy, and platelet dysfunction. In severe cases following injury, blood failure develops and is induced by inadequate oxygen delivery in the presence of hemorrhage, tissue injury, and acute stress from trauma. Severe hemorrhagic shock is best treated with hemostatic resuscitation, wherein blood products are used to restore effective circulating volume and increase oxygen delivery to tissues without exacerbating blood failure. The principles of hemostatic resuscitation have been demonstrated in severely injured people and the authors propose an algorithm for applying this to canine patients. The use of plasma and whole blood to resuscitate severely injured canines while minimizing the use of crystalloids and colloids could prove instrumental in improving both mortality and morbidity. More work is needed to understand the canine patient that would benefit from hemostatic resuscitation, as well as to determine the optimal resuscitation strategy for these patients.
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Affiliation(s)
- Thomas H Edwards
- U.S. Army Institute of Surgical Research, Joint Base San Antonio - Fort Sam Houston, Texas, USA
| | - Julie A Rizzo
- U.S. Army Institute of Surgical Research, Joint Base San Antonio - Fort Sam Houston, Texas, USA.,Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Anthony E Pusateri
- Naval Medical Research Unit San Antonio, Joint Base San Antonio - Fort Sam Houston, Texas, USA
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Ladhani HA, Ho VP, Charbonnet CC, Sperry JL, Guyette FX, Brown JB, Daley BJ, Miller RS, Harbrecht BG, Phelan HA, Claridge JA. Dose-dependent association between blood transfusion and nosocomial infections in trauma patients: A secondary analysis of patients from the PAMPer trial. J Trauma Acute Care Surg 2021; 91:272-278. [PMID: 34397951 PMCID: PMC8664092 DOI: 10.1097/ta.0000000000003251] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The Prehospital Air Medical Plasma (PAMPer) trial demonstrated a survival benefit to trauma patients who received thawed plasma as part of early resuscitation. The objective of our study was to examine the association between blood transfusion and nosocomial infections among trauma patients who participated in the PAMPer trial. We hypothesized that transfusion of blood products will be associated with the development of nosocomial infections in a dose-dependent fashion. METHODS We performed a secondary analysis of prospectively collected data of patients in the PAMPer trial with hospital length of stay of at least 3 days. Demographics, injury characteristics, and number of blood products transfused were obtained to evaluate outcomes. Bivariate analysis was performed to identify differences between patients with and without nosocomial infections. Two logistic regression models were created to evaluate the association between nosocomial infections and (1) any transfusion of blood products, and (2) quantity of blood products. Both models were adjusted for age, sex, and Injury Severity Score. RESULTS A total of 399 patients were included: age, 46 years (interquartile range, 29-59 years); Injury Severity Score, 22 (interquartile range, 12-29); 73% male; 80% blunt mechanism; and 40 (10%) deaths. Ninety-three (27%) developed nosocomial infections, including pneumonia (n = 67), bloodstream infections (n = 14), catheter-associated urinary tract infection (n = 10), skin and soft tissue infection (n = 8), Clostridium difficile colitis (n = 7), empyema (n = 6), and complicated intra-abdominal infections (n = 3). Nearly 80% (n = 307) of patients received packed red blood cells (PRBCs); 12% received cryoprecipitate, 69% received plasma, and 27% received platelets. Patients who received any PRBCs had more than a twofold increase in nosocomial infections (odds ratio, 2.15; 95% confidence interval, 1.01-4.58; p = 0.047). The number of PRBCs given was also associated with the development of nosocomial infection (odds ratio, 1.10; 95% confidence interval, 1.05-1.16; p < 0.001). CONCLUSION Trauma patients in the PAMPer trial who received a transfusion of at least 1 U of PRBCs incurred a twofold increased risk of nosocomial infection, and the risk of infection was dose dependent. LEVEL OF EVIDENCE Therapeutic/care management, level IV.
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Affiliation(s)
- Husayn A Ladhani
- From the Division of Trauma, Critical Care, Burns, and Acute Care Surgery, Department of Surgery (H.A.L., V.P.H., C.C.C., J.A.C.), MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio; Department of Surgery and Critical Care Medicine (J.L.S., J.B.B.), Department of Emergency Medicine (F.X.G.), University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; Department of Surgery (B.J.D.), University of Tennessee Health Science Center, Knoxville; Department of Surgery, John Peter Smith Hospital (R.S.M.), Fort Worth, Texas; Department of Surgery (B.G.H.), University of Louisville, Louisville, Kentucky; and Department of Surgery (H.A.P.), Louisiana State University Health Sciences Center, New Orleans, Louisiana
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Edwards TH, Pusateri AE, Mays EL, Bynum JA, Cap AP. Lessons Learned From the Battlefield and Applicability to Veterinary Medicine - Part 2: Transfusion Advances. Front Vet Sci 2021; 8:571370. [PMID: 34026881 PMCID: PMC8138582 DOI: 10.3389/fvets.2021.571370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 03/29/2021] [Indexed: 11/13/2022] Open
Abstract
Since the inception of recent conflicts in Afghanistan and Iraq, transfusion practices in human military medicine have advanced considerably. Today, US military physicians recognize the need to replace the functionality of lost blood in traumatic hemorrhagic shock and whole blood is now the trauma resuscitation product of choice on the battlefield. Building on wartime experiences, military medicine is now one of the country's strongest advocates for the principle of hemostatic resuscitation using whole blood or balanced blood components as the primary means of resuscitation as early as possibly following severe trauma. Based on strong evidence to support this practice in human combat casualties and in civilian trauma care, military veterinarians strive to practice similar hemostatic resuscitation for injured Military Working Dogs. To this end, canine whole blood has become increasingly available in forward environments, and non-traditional storage options for canine blood and blood components are being explored for use in canine trauma. Blood products with improved shelf-life and ease of use are not only useful for military applications, but may also enable civilian general and specialty practices to more easily incorporate hemostatic resuscitation approaches to canine trauma care.
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Affiliation(s)
- Thomas H Edwards
- U.S. Army Institute of Surgical Research, Joint Base San Antonio, San Antonio, TX, United States
| | - Anthony E Pusateri
- U.S. Army Institute of Surgical Research, Joint Base San Antonio, San Antonio, TX, United States
| | - Erin Long Mays
- Veterinary Specialty Services, Manchester, MO, United States
| | - James A Bynum
- U.S. Army Institute of Surgical Research, Joint Base San Antonio, San Antonio, TX, United States
| | - Andrew P Cap
- U.S. Army Institute of Surgical Research, Joint Base San Antonio, San Antonio, TX, United States
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Whole Blood is Superior to Component Transfusion for Injured Children: A Propensity Matched Analysis. Ann Surg 2020; 272:590-594. [PMID: 32932312 DOI: 10.1097/sla.0000000000004378] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To compare a propensity-matched cohort of injured children receiving conventional blood component transfusion to injured children receiving low-titer group O negative whole blood. SUMMARY OF BACKGROUND DATA Transfusion of whole blood in pediatric trauma patients is feasible and safe. Effectiveness has not been evaluated. METHODS Injured children ≥1 years old can receive up to 40 mL/kg of cold-stored, uncrossmatched whole blood during initial hemostatic resuscitation. Whole blood recipients (2016-2019) were compared to a propensity-matched cohort who received at least 1 uncrossmatched red blood cell unit in the trauma bay (2013-2016). Cohorts were matched for age, hypotension, traumatic brain injury, injury mechanism, and need for emergent surgery. Outcomes included time to resolution of base deficit, product volumes transfused, and INR after resuscitation. RESULTS Twenty-eight children who received whole blood were matched to 28 children who received components. The whole blood group had faster time to resolution of base deficit [median (IQR) 2 (1-2.5) hours vs 6 (2-24) hours, respectively; P < 0.001]. The post-transfusion INR was decreased in whole blood vs component cohort [median (IQR) 1.4 (1.3-1.5) vs 1.6 (1.4-2.2); P = 0.01]. Lower plasma volumes [median (IQR) = 5 (0-15) mL/kg vs 11 (5-35) mL/kg; P = 0.04] and lower platelet volumes [median (IQR) = 0 (0-2) vs 3 (0-8); P = 0.03] were administered to the whole blood group versus component group. Other clinical variables (in-hospital death, hospital length of stay, intensive care unit length of stay, and ventilator days) did not differ between groups. CONCLUSIONS Compared to component transfusion, whole blood transfusion results in faster resolution of shock, lower post-transfusion INR, and decreased component product transfusion. Larger cohorts are required to support these findings.
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Massive transfusion and the response to prehospital plasma: It is all in how you define it. J Trauma Acute Care Surg 2020; 89:43-50. [PMID: 32118820 DOI: 10.1097/ta.0000000000002639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND A recent analysis derived from the Prehospital Air Medical Plasma trial data set demonstrated no significant independent plasma survival benefit in those who required massive transfusion (≥10 units of red cells in 24 hours). The definition of massive transfusion has evolved over time to minimize bias and predict those at highest risk of death. We sought to characterize the definition of massive transfusion, their associated mortality risks and the survival benefit associated with prehospital plasma. METHODS A secondary analysis was performed using data from a recent prehospital plasma trial. Patients transferred directly from the scene were characterized. We defined historic massive transfusion using ≥10 units red cells in 24 hours and critical administration threshold (CAT) as ≥3 units per hour in the first hour (CAT1hr) or in any of the first 4 hours (CAT4hr) from arrival. The primary outcome was 30-day mortality. Kaplan-Meier analysis and Cox hazard regression were used to characterize the survival benefit of prehospital plasma. RESULTS There were a total of 390 enrolled patients who were transferred from the scene and represent the study cohort. Overall, 126 patients were positive for the CAT1hr metric, 183 patients were positive for the CAT4hr metric and 84 patients were positive for historic massive transfusion metric. The overall study mortality rate for those patients who met each transfusion definition was 13.1%, 17.4% and 10.0%, respectively. The CAT4hr metric had the lowest potential for survival bias. Kaplan-Meier survival analysis demonstrated a prehospital plasma survival benefit in the patients who were CAT4hr positive. CONCLUSION The current analysis demonstrates the superior utility of the CAT4hr definition with optimization of survival bias while conserving mortality risk prediction. This transfusion definition was associated with a prehospital plasma survival benefit and may be the most appropriate definition of massive transfusion for pragmatic studies which focus on hemorrhagic shock. LEVEL OF EVIDENCE Epidemiologic, Level II.
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Blood product transfusion during air medical transport: A needs assessment. CAN J EMERG MED 2020; 22:S67-S73. [DOI: 10.1017/cem.2020.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
ABSTRACTObjectivesEarly administration of blood products to patients with hemorrhagic shock has a positive impact on morbidity and mortality. Smaller hospitals may have limited supply of blood, and air medical systems may not carry blood. The primary outcome is to quantify the number of patients meeting established physiologic criteria for blood product administration and to identify which patients receive and which ones do not receive it due to lack of availability locally.MethodsElectronic patient care records were used to identify a retrospective cohort of patients undergoing emergent air medical transport in Ontario, Canada, who are likely to require blood. Presenting problems for blood product administration were identified. Physiologic data were extracted with criteria for transfusion used to identify patients where blood product administration is indicated.ResultsThere were 11,520 emergent patient transports during the study period, with 842 (7.3%) where blood product administration was considered. Of these, 290 met established physiologic criteria for blood products, with 167 receiving blood, of which 57 received it at a hospital with a limited supply. The mean number of units administered per patient was 3.5. The remaining 123 patients meeting criteria did not receive product because none was unavailable.ConclusionIndications for blood product administration are present in 2.5% of patients undergoing time-sensitive air medical transport. Air medical services can enhance access to potentially lifesaving therapy in patients with hemorrhagic shock by carrying blood products, as blood may be unavailable or in limited supply locally in the majority of patients where it is indicated.
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Superior Survival Outcomes of a Polyethylene Glycol-20k Based Resuscitation Solution in a Preclinical Porcine Model of Lethal Hemorrhagic Shock. Ann Surg 2020; 275:e716-e724. [PMID: 32773641 DOI: 10.1097/sla.0000000000004070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare early outcomes and 24-hour survival after LVR with the novel polyethylene glycol-20k-based crystalloid (PEG-20k), WB, or hextend in a preclinical model of lethal HS. BACKGROUND Posttraumatic HS is a major cause of preventable death. Current resuscitation strategies focus on restoring oxygen-carrying capacity (OCC) and coagulation with blood products. Our lab shows that PEG-20k is an effective non-sanguineous, LVR solution in acute models of HS through mechanisms targeting cell swelling-induced microcirculatory failure. METHODS Male pigs underwent splenectomy followed by controlled hemorrhage until lactate reached 7.5-8.5 mmol/L. They were randomized to receive LVR with PEG-20k, WB, or Hextend. Surviving animals were recovered 4 hours post-LVR. Outcomes included 24-hour survival rates, mean arterial pressure, lactate, hemoglobin, and estimated intravascular volume changes. RESULTS Twenty-four-hour survival rates were 100%, 16.7%, and 0% in the PEG-20k, WB, and Hextend groups, respectively (P = 0.001). PEG-20k significantly restored mean arterial press, intravascular volume, and capillary perfusion to baseline, compared to other groups. This caused complete lactate clearance despite decreased OCC. Neurological function was normal after next-day recovery in PEG-20k resuscitated pigs. CONCLUSION Superior early and 24-hour outcomes were observed with PEG-20k LVR compared to WB and Hextend in a preclinical porcine model of lethal HS, despite decreased OCC from substantial volume-expansion. These findings demonstrate the importance of enhancing microcirculatory perfusion in early resuscitation strategies.
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Prehospital plasma in injured patients is associated with survival principally in blunt injury: Results from two randomized prehospital plasma trials. J Trauma Acute Care Surg 2020; 88:33-41. [PMID: 31524836 DOI: 10.1097/ta.0000000000002485] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Recent evidence demonstrated that prehospital plasma in patients at risk of hemorrhagic shock was safe for ground transport and resulted in a 28-day survival benefit for air medical transport patients. Whether any beneficial effect of prehospital plasma varies across injury mechanism remains unknown. METHODS We performed a secondary analysis using a harmonized data set derived from two recent prehospital plasma randomized trials. Identical inclusion/exclusion criteria and primary/secondary outcomes were used for the trials. Prehospital time, arrival shock parameters, and 24-hour transfusion requirements were compared across plasma and control groups stratified by mechanism of injury. Stratified survival analysis and Cox hazard regression were performed to determine the independent survival benefits of plasma across blunt and penetrating injury. RESULTS Blunt patients had higher injury severity, were older, and had a lower Glasgow Coma Scale. Arrival indices of shock and coagulation parameters were similar across blunt and penetrating injury. The percentage of patients with a prehospital time less than 20 minutes was significantly higher for penetrating patients relative to blunt injured patients (28.0% vs. 11.6%, p < 0.01). Stratified Kaplan-Meier curves demonstrated a significant separation for blunt injured patients (n = 465, p = 0.01) with no separation demonstrated for penetrating injured patients (n = 161, p = 0.60) Stratified Cox hazard regression verified, after controlling for all important confounders, that prehospital plasma was associated with a 32% lower independent hazard for 28-day mortality in blunt injured patients (hazard ratio, 0.68; 95% confidence interval, 0.47-0.96; p = 0.03) with no independent survival benefit found in penetrating patients (hazard ratio, 1.16; 95% confidence interval, 0.4-3.1; p = 0.78). CONCLUSION A survival benefit associated with prehospital plasma at 24 hours and 28 days exists primarily in blunt injured patients with no benefit shown in penetrating trauma patients. No detrimental effects attributable to plasma are demonstrated in penetrating injury. These results have important relevance to military and civilian trauma systems. LEVEL OF EVIDENCE Therapeutic, I.
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Severity of hemorrhage and the survival benefit associated with plasma: Results from a randomized prehospital plasma trial. J Trauma Acute Care Surg 2020; 88:141-147. [PMID: 31688793 DOI: 10.1097/ta.0000000000002530] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Recent randomized clinical trial evidence demonstrated a survival benefit with the use of prehospital plasma in patients at risk of hemorrhagic shock. We sought to characterize the survival benefit associated with prehospital plasma relative to the blood transfusion volume over the initial 24 hours. We hypothesized that the beneficial effects of prehospital plasma would be most robust in those with higher severity of hemorrhage. METHODS We performed a prespecified secondary analysis using data derived from a prospective randomized prehospital plasma trial. Blood component transfusion volumes were recorded over the initial 24 hours. Massive transfusion (MT) was defined a priori as receiving ≥10 units of red cells in 24 hours. We characterized the 30-day survival benefit of prehospital plasma and the need for MT and overall 24-hour red cell transfusion volume utilizing Kaplan-Meier survival analysis and Cox proportional hazard regression. RESULTS There were 501 patients included in this analysis with 230 randomized to prehospital plasma with 104 patients requiring MT. Mortality in patients who received MT were higher compared with those that did not (MT vs. NO-MT, 42% vs. 26%, p = 0.001). Kaplan-Meier survival curves demonstrated early separation in the NO-MT subgroup (log rank p = 0.008) with no survival benefit found in the MT group (log rank p = 0.949). Cox regression analysis verified these findings. When 24-hour red cell transfusion was divided into quartiles, there was a significant independent association with 30-day survival in patients who received 4 to 7 units (hazard ratio, 0.33, 95% confidence interval, 0.14-0.80, p = 0.013). CONCLUSION The survival benefits of prehospital plasma was demonstrated only in patients with red cell requirements below the transfusion level of MT. Patients who received 4 to 7 units of red cells demonstrated the most robust independent survival benefit attributable to prehospital plasma transfusion. Prehospital plasma may be most beneficial in those patients with moderate transfusion requirements and mortality risk. LEVEL OF EVIDENCE Therapeutic, Level I.
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Prehospital resuscitation in adult patients following injury: A Western Trauma Association critical decisions algorithm. J Trauma Acute Care Surg 2020; 87:1228-1231. [PMID: 31464868 DOI: 10.1097/ta.0000000000002488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Implementation of a prehospital air medical thawed plasma program: Is it even feasible? J Trauma Acute Care Surg 2020; 87:1077-1081. [PMID: 31205211 DOI: 10.1097/ta.0000000000002406] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND The Prehospital Air Medical Plasma (PAMPer) trial demonstrated a 30-day survival benefit among hypotensive trauma patients treated with prehospital plasma during air medical transport. We characterized resources, costs and feasibility of air medical prehospital plasma program implementation. METHODS We performed a secondary analysis using data derived from the recent PAMPer trial. Intervention patients received thawed plasma (5-day shelf life). Unused plasma units were recycled back to blood bank affiliates, when possible. Distribution method and capability of recycling varied across sites. We determined the status of plasma units deployed, utilized, wasted, and returned. We inventoried thawed plasma use and annualized costs for distribution and recovery. RESULTS The PAMPer trial screened 7,275 patients and 5,103 plasma units were deployed across 22 air medical bases during a 42-month period. Only 368 (7.2%) units of this total thawed plasma pool were provided to plasma randomized PAMPer patients. Of the total plasma pool, 3,716 (72.8%) units of plasma were returned to the blood bank with the potential for transfusion prior to expiration and 1,019 (20.0%) thawed plasma units were deemed wasted for this analysis. The estimated average annual cost of implementation of a thawed plasma program per air medical base at an average courier distance would be between US $24,343 and US $30,077, depending on the ability to recycle plasma and distance of courier delivery required. CONCLUSION A prehospital plasma program utilizing thawed plasma is resource intensive. Plasma waste can be minimized depending on trauma center and blood bank specific logistics. Implementation of a thawed plasma program can occur with financial cost. Products with a longer shelf life, such as liquid plasma or freeze-dried plasma, may provide a more cost-effective prehospital product relative to thawed plasma. LEVEL OF EVIDENCE Therapeutic, level III.
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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: 11] [Impact Index Per Article: 2.8] [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: 28] [Impact Index Per Article: 7.0] [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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Pusateri AE, Moore EE, Moore HB, Le TD, Guyette FX, Chapman MP, Sauaia A, Ghasabyan A, Chandler J, McVaney K, Brown JB, Daley BJ, Miller RS, Harbrecht BG, Claridge JA, Phelan HA, Witham WR, Putnam AT, Sperry JL. Association of Prehospital Plasma Transfusion With Survival in Trauma Patients With Hemorrhagic Shock When Transport Times Are Longer Than 20 Minutes: A Post Hoc Analysis of the PAMPer and COMBAT Clinical Trials. JAMA Surg 2020; 155:e195085. [PMID: 31851290 DOI: 10.1001/jamasurg.2019.5085] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Importance Both military and civilian clinical practice guidelines include early plasma transfusion to achieve a plasma to red cell ratio approaching 1:1 to 1:2. However, it was not known how early plasma should be given for optimal benefit. Two recent randomized clinical trials were published, with apparently contradictory results. The Prehospital Air Medical Plasma (PAMPer) clinical trial showed a nearly 30% reduction in mortality with plasma transfusion in the prehospital environment, while the Control of Major Bleeding After Trauma (COMBAT) clinical trial showed no survival improvement. Objective To facilitate a post hoc combined analysis of the COMBAT and PAMPer trials to examine questions that could not be answered by either clinical trial alone. We hypothesized that prehospital transport time influenced the effects of prehospital plasma on 28-day mortality. Design, Setting, and Participants A total of 626 patients in the 2 clinical trials were included. Patients with trauma and hemorrhagic shock were randomly assigned to receive either standard care or 2 U of thawed plasma followed by standard care in the prehospital environment. Data analysis was performed between September 2018 and January 2019. Interventions Prehospital transfusion of 2 U of plasma compared with crystalloid-based resuscitation. Main Outcomes and Measures The main outcome was 28-day mortality. Results In this post hoc analysis of 626 patients (467 men [74.6%] and 159 women [25.4%]; median [interquartile range] age, 42 [27-57] years) who had trauma with hemorrhagic shock, a Cox regression analysis showed a significant overall survival benefit for plasma (hazard ratio [HR], 0.65; 95% CI, 0.47-0.90; P = .01) after adjustment for injury severity, age, and clinical trial cohort (COMBAT or PAMPer). A significant association with prehospital transport time was detected (from arrival on scene to arrival at the trauma center). Increased mortality was observed in patients in the standard care group when prehospital transport was longer than 20 minutes (HR, 2.12; 95% CI, 1.05-4.30; P = .04), while increased mortality was not observed in patients in the prehospital plasma group (HR, 0.78; 95% CI, 0.40-1.51; P = .46). No serious adverse events were associated with prehospital plasma transfusion. Conclusions and Relevance These data suggest that prehospital plasma is associated with a survival benefit when transport times are longer than 20 minutes and that the benefit-risk ratio is favorable for use of prehospital plasma. Trial Registration ClinicalTrials.gov identifiers: NCT01838863 (COMBAT) and NCT01818427 (PAMPer).
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Affiliation(s)
- Anthony E Pusateri
- US Army Institute of Surgical Research, JBSA-Fort Sam Houston, San Antonio, Texas
| | - Ernest E Moore
- Department of Surgery, School of Medicine, University of Colorado Denver, Aurora
| | - Hunter B Moore
- Department of Surgery, School of Medicine, University of Colorado Denver, Aurora
| | - Tuan D Le
- US Army Institute of Surgical Research, JBSA-Fort Sam Houston, San Antonio, Texas
| | - Francis X Guyette
- Division of Emergency Medicine, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Michael P Chapman
- Department of Radiology, School of Medicine, University of Colorado Denver, Aurora
| | - Angela Sauaia
- Department of Health Systems, Management, and Policy, School of Public Health, University of Colorado Denver, Aurora
| | - Arsen Ghasabyan
- Department of Surgery, School of Medicine, University of Colorado Denver, Aurora
| | - James Chandler
- Department of Surgery, School of Medicine, University of Colorado Denver, Aurora
| | - Kevin McVaney
- Department of Emergency Medicine, School of Medicine, University of Colorado Denver, Aurora
| | - Joshua B Brown
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Brian J Daley
- Department of Surgery, University of Tennessee Health Science Center, Knoxville
| | - Richard S Miller
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Brian G Harbrecht
- Department of Surgery, University of Louisville, Louisville, Kentucky
| | - Jeffrey A Claridge
- MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio
| | - Herb A Phelan
- Department of Surgery, Parkland Memorial Hospital, University of Texas Southwestern, Dallas
| | | | - A Tyler Putnam
- Altoona Hospital, University of Pittsburgh Medical Center, Altoona, Pennsylvania
| | - Jason L Sperry
- Division of Trauma and General Surgery, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Feasibility of prehospital freeze-dried plasma administration in a UK Helicopter Emergency Medical Service. Eur J Emerg Med 2020; 26:373-378. [PMID: 30531322 DOI: 10.1097/mej.0000000000000585] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Early transfusion of patients with major traumatic haemorrhage may improve survival. This study aims to establish the feasibility of freeze-dried plasma transfusion in a Helicopter Emergency Medical Service in the UK. PATIENTS AND METHODS A retrospective observational study of major trauma patients attended by Kent, Surrey and Sussex Helicopter Emergency Medical Service and transfused freeze-dried plasma since it was introduced in April 2014. RESULTS Of the 1873 patients attended over a 12-month period before its introduction, 79 patients received packed red blood cells (4.2%) with a total of 193 units transfused. Of 1881 patients after the introduction of freeze-dried plasma, 10 patients received packed red blood cells only and 66 received both packed red blood cells and freeze-dried plasma, with a total of 158 units of packed red blood cells transfused, representing an 18% reduction between the two 12-month periods. In the 20 months since its introduction, of 216 patients transfused with at least one unit of freeze-dried plasma, 116 (54.0%) patients received both freeze-dried plasma and packed red blood cells in a 1: 1 ratio. Earlier transfusion was feasible, transferring the patient to the hospital before transfusion would have incurred a delay of 71 min (interquartile range: 59-90 min). CONCLUSION Prehospital freeze-dried plasma and packed red blood cell transfusion is feasible in a 1: 1 ratio in patients with suspected traumatic haemorrhage. The use of freeze-dried plasma as a first-line fluid bolus reduced the number of prehospital packed red blood cell units required and reduced the time to transfusion.
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Pusateri AE, Butler FK, Shackelford SA, Sperry JL, Moore EE, Cap AP, Taylor AL, Homer MJ, Hoots WK, Weiskopf RB, Davis MR. The need for dried plasma - a national issue. Transfusion 2019; 59:1587-1592. [PMID: 30980738 DOI: 10.1111/trf.15261] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 11/06/2018] [Indexed: 01/10/2023]
Abstract
Recent studies have demonstrated that early transfusion of plasma or RBCs improves survival in patients with severe trauma and hemorrhagic shock. Time to initiate transfusion is the critical factor. It is essential that transfusion begin in the prehospital environment when transport times are longer than approximately 15 to 20 minutes. Unfortunately, logistic constraints severely limit the use of blood products in the prehospital setting, especially in military, remote civilian, and mass disaster circumstances, where the need can be most acute. US military requirements for logistically supportable blood products are projected to increase dramatically in future conflicts. Although dried plasma products have been available and safely used in a number of countries for over 20 years, there is no dried plasma product commercially available in the United States. A US Food and Drug Administration-approved dried plasma is urgently needed. Considering the US military, disaster preparedness, and remote civilian trauma perspectives, this is an urgent national health care issue.
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Affiliation(s)
- Anthony E Pusateri
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas
| | - Frank K Butler
- Committee on Tactical Combat Casualty Care, Joint Trauma System, Defense Center of Excellence for Trauma, JBSA, Fort Sam Houston
| | - Stacy A Shackelford
- Joint Trauma System, Defense Center of Excellence for Trauma, JBSA Fort Sam Houston, San Antonio, Texas
| | - Jason L Sperry
- Department of Surgery and Critical Care, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ernest E Moore
- Department of Surgery, Denver Health Medical Center, Denver, Colorado
| | - Andrew P Cap
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas
| | | | - Mary J Homer
- US Department of Health and Human Services (BARDA), Washington, DC
| | - W Keith Hoots
- National Institutes of Health (NHLBI), Bethesda, Maryland
| | | | - Michael R Davis
- US Army Medical Research and Materiel Command, Fort Detrick, Maryland
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Is prehospital blood transfusion effective and safe in haemorrhagic trauma patients? A systematic review and meta-analysis. Injury 2019; 50:1017-1027. [PMID: 30928164 DOI: 10.1016/j.injury.2019.03.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 03/06/2019] [Accepted: 03/20/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Life-threatening haemorrhage accounts for 40% mortality in trauma patients worldwide. After bleeding control is achieved, circulating volume must be restored. Early in-hospital transfusion of blood components is already proven effective, but the scientific proof for the effectiveness of prehospital blood-component transfusion (PHBT) in trauma patients is still unclear. OBJECTIVE To systematically review the evidence for effectiveness and safety of PHBT to haemorrhagic trauma patients. METHODS CINAHL, Cochrane, EMBASE, and Pubmed were searched in the period from 1988 until August 1, 2018. Meta-analysis was performed for matched trauma patients receiving PHBT with the primary outcomes 24-hour mortality and long-term mortality. Secondary outcome measure was adverse events as a result of PHBT. RESULTS Trauma patients who received PHBT with simultaneous use of packed red blood cells (pRBCs) and plasma showed a statistically significant reduction in long-term mortality (OR = 0.51; 95% CI, 0.36-0.71; P < 0.0001) but no difference in 24-hour mortality (OR = 0.47, 95% CI, 0.17-1.34; P = 0.16). PHBT with individual use of pRBCs showed no difference in long-term mortality (OR = 1.18; 95% CI, 0.93-1.49; P = 0.17) or 24-hour mortality (OR = 0.92; 95% CI, 0.46-1.85; P = 0.82). In a total of 1341 patients who received PHBT, 14 adverse events were reported 1.04%, 95% CI 0.57-1.75%. CONCLUSIONS PHBT with simultaneous use of both pRBCs and plasma resulted in a significant reduction in the odds for long-term mortality. However, based on mainly poor quality evidence no hard conclusion can be drawn about a possible survival benefit for haemorrhagic trauma patients receiving PHBT. Overall, PHBT is safe but results of currently ongoing randomised controlled trials have to be awaited to demonstrate a survival benefit. STUDY TYPE Systematic review and meta-analysis.
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Aggressive crystalloid adversely affects outcomes in a pediatric trauma population. Eur J Trauma Emerg Surg 2019; 47:85-92. [PMID: 31030222 DOI: 10.1007/s00068-019-01134-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 04/03/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Crystalloid resuscitation for trauma patients is deleterious, and minimizing crystalloid use is advocated. The purpose of this study was to evaluate the adverse effects of high-volume resuscitation in pediatric blunt trauma patients. METHODS This study included a retrospective review of 291 patients with blunt trauma from January 2007 to Apr 2018 at the Children's Hospital, Chongqing Medical University. Patients were dichotomized into low and high groups depending on the average dose of crystalloid fluid administration with a cut-off point during the first 24 or 48 h. Propensity score matching was used based on measurable baseline factors to minimize confounding. The associations between crystalloid administration and clinical outcomes were determined according to the corresponding methods. RESULTS Patients who received larger doses of crystalloids were more likely than the low-volume group to be associated with severe anemia (p = 0.033, p = 0.042, respectively), RBC transfusion (p = 0.016, p = 0.009, respectively) and longer hospital length of stay (p = 0.008, p = 0.002, respectively). In terms of plasma transfusion and oral solid diet, there were marginally significant differences noted in the dichotomized groups at 24 h (p = 0.074), with significant differences at 48 h (p = 0.013). CONCLUSION Significant unfavorable outcomes were noted following excessive crystalloid resuscitation within the first 48 h among pediatric patients with blunt trauma. Our findings support the notion that excessive fluid resuscitation should be avoided.
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Prehospital Blood Product and Crystalloid Resuscitation in the Severely Injured Patient. Ann Surg 2019; 273:358-364. [DOI: 10.1097/sla.0000000000003324] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Greene TJ, DeSantis SM, Fox EE, Wade CE, Holcomb JB, Swartz MD. Utilizing Propensity Score Analyses in Prehospital Blood Product Transfusion Studies: Lessons Learned and Moving Toward Best Practice. Mil Med 2019; 183:124-133. [PMID: 29635550 PMCID: PMC6020820 DOI: 10.1093/milmed/usx137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 01/01/2018] [Indexed: 01/12/2023] Open
Abstract
Recently, observational studies analyzing prehospital blood product transfusions (PHT) for trauma have become more widespread in both military and civilian communities. Due to these studies’ non-random treatment assignment, propensity score (PS) methodologies are often used to determine an intervention’s effectiveness. However, there are no guidelines on how to appropriately conduct PS analyses in prehospital studies. Such analyses are complicated when treatments are given in emergent settings as the ability to administer treatment early, often before hospital admission, can interfere with assumptions of PS modeling. This study conducts a systematic review of literature from military and civilian populations to assess current practice of PS methodology in PHT analyses. The decision-making process from the multicenter Prehospital Resuscitation on Helicopter Study (PROHS) is discussed and used as a motivating example. Results show that researchers often omit or incorrectly assess variable balance between treatment groups and include inappropriate variables in the propensity model. When used correctly, PS methodology is an effective statistical technique to show that aggressive en route resuscitation strategies, including PHT, can reduce mortality in individuals with severe trauma. This review provides guidelines for best practices in study design and analyses that will advance trauma care.
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Affiliation(s)
- Thomas J Greene
- Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, 1200 Pressler St, Houston, TX 77030
| | - Stacia M DeSantis
- Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, 1200 Pressler St, Houston, TX 77030
| | - Erin E Fox
- Center for Translational Injury Research, University of Texas Health Science Center at Houston, 6410 Fannin St, Houston, TX 77030.,Department of Surgery, McGovern Medical School, University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX 77030
| | - Charles E Wade
- Center for Translational Injury Research, University of Texas Health Science Center at Houston, 6410 Fannin St, Houston, TX 77030.,Department of Surgery, McGovern Medical School, University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX 77030
| | - John B Holcomb
- Center for Translational Injury Research, University of Texas Health Science Center at Houston, 6410 Fannin St, Houston, TX 77030.,Department of Surgery, McGovern Medical School, University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX 77030
| | - Michael D Swartz
- Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, 1200 Pressler St, Houston, TX 77030.,Center for Translational Injury Research, University of Texas Health Science Center at Houston, 6410 Fannin St, Houston, TX 77030
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Griggs JE, Jeyanathan J, Joy M, Russell MQ, Durge N, Bootland D, Dunn S, Sausmarez ED, Wareham G, Weaver A, Lyon RM. Mortality of civilian patients with suspected traumatic haemorrhage receiving pre-hospital transfusion of packed red blood cells compared to pre-hospital crystalloid. Scand J Trauma Resusc Emerg Med 2018; 26:100. [PMID: 30454067 PMCID: PMC6245557 DOI: 10.1186/s13049-018-0567-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/06/2018] [Indexed: 12/20/2022] Open
Abstract
Background Major haemorrhage is a leading cause of mortality following major trauma. Increasingly, Helicopter Emergency Medical Services (HEMS) in the United Kingdom provide pre-hospital transfusion with blood products, although the evidence to support this is equivocal. This study compares mortality for patients with suspected traumatic haemorrhage transfused with pre-hospital packed red blood cells (PRBC) compared to crystalloid. Methods A single centre retrospective observational cohort study between 1 January 2010 and 1 February 2015. Patients triggering a pre-hospital Code Red activation were eligible. The primary outcome measure was all-cause mortality at 6 hours (h) and 28 days (d), including a sub-analysis of patients receiving a major and massive transfusion. Multivariable regression models predicted mortality. Multiple Imputation was employed, and logistic regression models were constructed for all imputed datasets. Results The crystalloid (n = 103) and PRBC (n = 92) group were comparable for demographics, Injury Severity Score (p = 0.67) and mechanism of injury (p = 0.73). Observed 6 h mortality was smaller in the PRBC group (n = 10, 10%) compared to crystalloid group (n = 19, 18%). Adjusted OR was not statistically significant (OR 0.48, CI 0.19–1.19, p = 0.11). Observed mortality at 28 days was smaller in the PRBC group (n = 21, 26%) compared to crystalloid group (n = 31, 40%), p = 0.09. Adjusted OR was not statistically significant (OR 0.66, CI 0.32–1.35, p = 0.26). A statistically significant greater proportion of the crystalloid group required a major transfusion (n = 62, 60%) compared to the PRBC group (n = 41, 40%), p = 0.02. For patients requiring a massive transfusion observed mortality was smaller in the PRBC group at 28 days (p = 0.07). Conclusion In a single centre UK HEMS study, in patients with suspected traumatic haemorrhage who received a PRBC transfusion there was an observed, but non-significant, reduction in mortality at 6 h and 28 days, also reflected in a massive transfusion subgroup. Patients receiving pre-hospital PRBC were significantly less likely to require an in-hospital major transfusion. Further adequately powered multi-centre prospective research is required to establish the optimum strategy for pre-hospital volume replacement in patients with traumatic haemorrhage.
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Affiliation(s)
- J E Griggs
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK.
| | - J Jeyanathan
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK.,Academic Department of Military Anaesthesia and Critical Care, London, UK
| | - M Joy
- University of Surrey, Guildford, GU2 7XH, UK
| | - M Q Russell
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK
| | - N Durge
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK.,Royal London Hospital, Whitechapel Road, Whitechapel, London, E1 1BB, UK
| | - D Bootland
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK.,Royal Sussex County Hospital, Eastern Road, Brighton, BN2 5BE, UK
| | - S Dunn
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK
| | - E D Sausmarez
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK
| | - G Wareham
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK
| | - A Weaver
- Royal London Hospital, Whitechapel Road, Whitechapel, London, E1 1BB, UK
| | - R M Lyon
- Kent, Surrey & Sussex Air Ambulance Trust, Redhill Aerodrome, Redhill, RH1 5YP, UK.,University of Surrey, Guildford, GU2 7XH, UK
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Out-Of-Hospital Blood Product Administration Considerations. Air Med J 2018; 37:349-350. [PMID: 30424849 DOI: 10.1016/j.amj.2018.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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40
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Knapp J, Pietsch U, Kreuzer O, Hossfeld B, Bernhard M, Lier H. Prehospital Blood Product Transfusion in Mountain Rescue Operations. Air Med J 2018; 37:392-399. [PMID: 30424860 DOI: 10.1016/j.amj.2018.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/08/2018] [Accepted: 08/24/2018] [Indexed: 12/13/2022]
Abstract
Severely injured patients with hemorrhage present major challenges for emergency medical services, especially during mountain rescue missions in which harsh environmental conditions and long out-of-hospital times are frequent. Because uncontrolled hemorrhage is the leading cause of death within the first 48 hours after severe trauma, initiating damage control resuscitation (DCR) as early as possible after severe trauma and exporting the concept of DCR to the out-of-hospital arena is pivotal for patient survival. Appropriate bleeding control, management of coagulopathy, and transfusion of blood products are core aspects of DCR. This review summarizes the available evidence on out-of-hospital blood product transfusion and the management of coagulopathy with a special focus on mountain rescue missions. An overview of upcoming trials and possible future trends in the management of coagulopathy during rescue operations is provided.
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Affiliation(s)
- Jürgen Knapp
- Department of Anaesthesiology and Pain Therapy, University Hospital of Bern, Bern, Switzerland; Air Zermatt, Emergency Medical Service, Zermatt, Switzerland.
| | - Urs Pietsch
- Air Zermatt, Emergency Medical Service, Zermatt, Switzerland; Department of Anaesthesiology and Intensive Care Medicine, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Oliver Kreuzer
- Air Zermatt, Emergency Medical Service, Zermatt, Switzerland
| | - Björn Hossfeld
- Department of Anaesthesiology and Intensive Care Medicine, Armed Forces Hospital Ulm, Ulm, Germany; Task Force "Tactical Medicine" of the Scientific Working Group Emergency Medicine of the German Society of Anaesthesiology and Intensive Care Medicine, Nürnberg, Germany
| | - Michael Bernhard
- Emergency Department, University Hospital of Düsseldorf, Düsseldorf, Germany; Task Force "Trauma and Resuscitation Room Management" of the Scientific Working Group Emergency Medicine of the German Society of Anaesthesiology and Intensive Care Medicine, Nürnberg, Germany
| | - Heiko Lier
- Task Force "Tactical Medicine" of the Scientific Working Group Emergency Medicine of the German Society of Anaesthesiology and Intensive Care Medicine, Nürnberg, Germany; Department of Anaesthesiology and Postoperative Intensive Care Medicine, University of Cologne, Köln, Germany
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41
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Deng Q, Hao F, Wang Y, Guo C. Rotation thromboelastometry (ROTEM) enables improved outcomes in the pediatric trauma population. J Int Med Res 2018; 46:5195-5204. [PMID: 30200794 PMCID: PMC6300942 DOI: 10.1177/0300060518794092] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Objective We evaluated the role of rotation thromboelastometry (ROTEM) in managing acute traumatic coagulopathy in pediatric patients with trauma. Methods A retrospective cohort of pediatric patients with trauma from six institutes was studied during a 10-year period from 2007 to 2017. The associations between ROTEM-guided, goal-directed coagulation therapy and clinical outcomes were determined. Results Three hundred thirty-two pediatric patients (age < 15 years) who were treated with ROTEM-guided, goal-directed coagulation therapy were matched to 332 control pediatric patients with conventional plasmatic coagulation tests. The ROTEM protocol was associated with a significant reduction in the interval for admission to acute traumatic coagulopathy treatment, less plasma transfusions in the first 24 hours of admission, and a favorable coagulopathy recovery. Furthermore, the median number of total hospital days was significantly shorter for patients who had the ROTEM protocol than for control patients. Conclusions There are significant favorable outcomes, including rapid acute traumatic coagulopathy treatment and a lower 24-hour blood product requirement, following ROTEM-guided, goal-directed coagulation therapy among pediatric patients with blunt trauma.
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Affiliation(s)
- Qin Deng
- 1 Department of Pediatric General Surgery and Liver Transplantation, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Fabao Hao
- 1 Department of Pediatric General Surgery and Liver Transplantation, Children's Hospital, Chongqing Medical University, Chongqing, China.,2 Department of Neonatology, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Yongming Wang
- 1 Department of Pediatric General Surgery and Liver Transplantation, Children's Hospital, Chongqing Medical University, Chongqing, China.,2 Department of Neonatology, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Chunbao Guo
- 1 Department of Pediatric General Surgery and Liver Transplantation, Children's Hospital, Chongqing Medical University, Chongqing, China.,3 Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
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42
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Ünlü A, Yılmaz S, Yalçın Ö, Uyanık M, Petrone P, Çetinkaya RA, Eker İ, Urkan M, Özgürtaş T, Avcı İY, Zeybek N, Aksu AC. Bringing Packed Red Blood Cells to the Point of Combat Injury: Are We There Yet? Turk J Haematol 2018; 35:185-191. [PMID: 29806595 PMCID: PMC6110438 DOI: 10.4274/tjh.2018.0081] [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: 02/28/2018] [Accepted: 05/28/2018] [Indexed: 12/01/2022] Open
Abstract
Objective Hemorrhage is the leading cause of injury-related prehospital mortality. We investigated worst-case scenarios and possible requirements of the Turkish military. As we plan to use blood resources during casualty transport, the impact of transport-related mechanical stress on packed red blood cells (PRBCs) was analyzed. Materials and Methods The in vitro experiment was performed in the environmental test laboratories of ASELSAN®. Operational vibrations of potential casualty transport mediums such as Sikorsky helicopters, Kirpi® armored vehicles, and the NATO vibration standard MIL-STD-810G software program were recorded. The most powerful mechanical stress, which was created by the NATO standard, was applied to 15 units of fresh (≤7 days) and 10 units of old (>7 days) PRBCs in a blood cooler box. The vibrations were simulated with a TDS v895 Medium-Force Shaker Device. On-site blood samples were analyzed at 0, 6, and 24 h for biochemical and biomechanical analyses. Results The mean (±standard deviation) age of fresh and old PRBCs was 4.9±2.2 and 32.8±11.8 days, respectively. Six-hour mechanical damage of fresh PRBCs was demonstrated by increased erythrocyte fragmentation rates (p=0.015), hemolysis rates (p=0.003), and supernatant potassium levels (p=0.003) and decreased hematocrit levels (p=0.015). Old PRBC hemolysis rates (p=0.015), supernatant potassium levels (p=0.015), and supernatant hemoglobin (p=0.015) were increased and hematocrit levels were decreased (p=0.015) within 6 h. Two (13%) units of fresh PRBCs and none of the old PRBCs were eligible for transfusion after 6 h of mechanical stress. Conclusion When an austere combat environment was simulated for 24 h, fresh and old PRBC hemolysis rates were above the quality criteria. Currently, the technology to overcome this mechanical damage does not seem to exist. In light of the above data, a new national project is being performed.
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Affiliation(s)
- Aytekin Ünlü
- University of Health Sciences, Gülhane Training and Research Hospital, Clinic of General Surgery, Ankara, Turkey
| | - Soner Yılmaz
- University of Health Sciences, Gülhane Training and Research Hospital, Regional Blood and Training Center, Ankara, Turkey
| | - Özlem Yalçın
- Koç University Faculty of Medicine, Laboratory of Hemorheology, Hemodynamics, and Vascular Biology, İstanbul, Turkey
| | - Metin Uyanık
- Çorlu State Hospital, Clinic of Biochemistry, Tekirdağ, Turkey
| | - Patrizio Petrone
- NYU Winthrop Hospital, Clinic of Surgery, Mineola; New York Medical College, Valhalla, New York, USA; University of Las Palmas de Gran Canaria, Canary Islands, Spain
| | - Rıza Aytaç Çetinkaya
- University of Health Sciences, Sultan Abdulhamid Han Training and Research Hospital, Clinic of Infectious Diseases, İstanbul, Turkey
| | - İbrahim Eker
- Afyon Kocatepe University Faculty of Medicine, Department of Pediatric Hematology, Afyonkarahisar, Turkey
| | - Murat Urkan
- University of Health Sciences, Gülhane Training and Research Hospital, Clinic of General Surgery, Ankara, Turkey
| | - Taner Özgürtaş
- University of Health Sciences, Gülhane Training and Research Hospital, Clinic of Biochemistry, Ankara, Turkey
| | - İsmail Yaşar Avcı
- University of Health Sciences, Gülhane Training and Research Hospital, Clinic of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Nazif Zeybek
- University of Health Sciences, Gülhane Training and Research Hospital, Clinic of General Surgery, Ankara, Turkey
| | - Ali Cenk Aksu
- Koç University Faculty of Medicine, Laboratory of Hemorheology, Hemodynamics, and Vascular Biology, İstanbul, Turkey
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Lier H, Bernhard M, Knapp J, Buschmann C, Bretschneider I, Hossfeld B. [Approaches to pre-hospital bleeding management : Current overview on civilian emergency medicine]. Anaesthesist 2018; 66:867-878. [PMID: 28785773 DOI: 10.1007/s00101-017-0350-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Severe bleeding is a typical result of traumatic injuries. Hemorrhage is responsible for almost 50% of deaths within the first 6 h after trauma. Appropriate bleeding control and coagulation therapy depends on an integrated concept of local hemostasis by primary pressure with the hands, compression, and tourniquets accompanied by prevention of hypothermia, acidosis and hypocalcemia. Additionally, permissive hypotension is accepted for suitable patients and tranexamic acid should be administered early. Multiple publications prove that prehospital transfusion of blood products (e. g. red blood cells and plasma) and coagulation factors (e. g. fibrinogen) is feasible and safe, but only required for <5% of polytrauma patients in the civilian setting.
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Affiliation(s)
- H Lier
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Köln (AöR), Kerpener Straße 62, 50937, Köln, Deutschland. .,Arbeitsgruppe "Taktische Medizin" des Arbeitskreises Notfallmedizin, Deutsche Gesellschaft für Anästhesiologie und Intensivmedizin, Nürnberg, Deutschland.
| | - M Bernhard
- Zentrale Notaufnahme, Universitätsklinikum Leipzig, Leipzig, Deutschland.,Arbeitsgruppe "Trauma- und Schockraummanagement" des Arbeitskreis Notfallmedizin, Deutschen Gesellschaft für Anästhesiologie und Intensivmedizin, Nürnberg, Deutschland
| | - J Knapp
- Klinik für Anästhesiologie und Schmerztherapie, Universitätsspital Bern, Bern, Schweiz.,Air Zermatt, Zermatt, Schweiz
| | - C Buschmann
- Institut für Rechtsmedizin, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - I Bretschneider
- Klinik für Anästhesiologie & Intensivmedizin, Bundeswehrkrankenhaus, Ulm, Deutschland
| | - B Hossfeld
- Klinik für Anästhesiologie & Intensivmedizin, Bundeswehrkrankenhaus, Ulm, Deutschland.,Arbeitsgruppe "Taktische Medizin" des Arbeitskreises Notfallmedizin, Deutsche Gesellschaft für Anästhesiologie und Intensivmedizin, Nürnberg, Deutschland
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Silva J, Gonçalves L, Sousa PP. Fluid therapy and shock: an integrative literature review. BRITISH JOURNAL OF NURSING (MARK ALLEN PUBLISHING) 2018; 27:449-454. [PMID: 29683753 DOI: 10.12968/bjon.2018.27.8.449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND shock refers to a physiological situation that puts life at risk. Its early identification and the timely institution of therapeutic measures can avoid death. Despite the frequent administration of fluid therapy as a treatment for shock, the type and dose of fluids to be delivered remain undetermined. AIM to determine the type of fluids to be administered and the type of approach to be performed in the different types of shock. METHOD integrative literature review. RESULTS data about fluid therapy in hypovolaemic and distributive shock were obtained, specifically in the haemorrhagic and the septic types. None of the articles addressed cardiogenic shock. CONCLUSION hypotensive resuscitation, with blood, is the most appropriate approach in haemorrhagic shock. There remains a question regarding the best approach in septic shock. However, conservative fluid therapy seems to be appropriate, with preference given to the administration of balanced crystalloids or albumin as an alternative.
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Affiliation(s)
- Joana Silva
- Medical-Surgical Nursing Specialist, Cardiac Intensive Care Unit, Professor Doutor Fernando Fonseca Hospital, Lisbon, Portugal
| | - Luís Gonçalves
- Medical-Surgical Nursing Specialist, Emergency and Resuscitation Medical Vehicle of Cascais, near Lisbon, Portugal
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45
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Speed is not everything: Identifying patients who may benefit from helicopter transport despite faster ground transport. J Trauma Acute Care Surg 2018; 84:549-557. [DOI: 10.1097/ta.0000000000001769] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Crewdson K, Rehn M, Brohi K, Lockey DJ. Pre-hospital emergency anaesthesia in awake hypotensive trauma patients: beneficial or detrimental? Acta Anaesthesiol Scand 2018; 62:504-514. [PMID: 29315456 DOI: 10.1111/aas.13059] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/21/2017] [Accepted: 11/29/2017] [Indexed: 01/13/2023]
Abstract
BACKGROUND The benefits of pre-hospital emergency anaesthesia (PHEA) are controversial. Patients who are hypovolaemic prior to induction of anaesthesia are at risk of severe cardiovascular instability post-induction. This study compared mortality for hypovolaemic trauma patients (without major neurological injury) undergoing PHEA with a patient cohort with similar physiology transported to hospital without PHEA. METHODS A retrospective database review was performed to identify patients who were hypotensive on scene [systolic blood pressure (SBP) < 90 mmHg], and GCS 13-15. Patient records were reviewed independently by two pre-hospital clinicians to identify the likelihood of hypovolaemia. Primary outcome measure was mortality defined as death before hospital discharge. RESULTS Two hundred and thirty-six patients were included; 101 patients underwent PHEA. Fifteen PHEA patients died (14.9%) compared with six non-PHEA patients (4.4%), P = 0.01; unadjusted OR for death was 3.73 (1.30-12.21; P = 0.01). This association remained after adjustment for age, injury mechanism, heart rate and hypovolaemia (adjusted odds ratio 3.07 (1.03-9.14) P = 0.04). Fifty-eight PHEA patients (57.4%) were hypovolaemic prior to induction of anaesthesia, 14 died (24%). Of 43 PHEA patients (42.6%) not meeting hypovolaemia criteria, one died (2%); unadjusted OR for mortality was 13.12 (1.84-578.21). After adjustment for age, injury mechanism and initial heart rate, the odds ratio for mortality remained significant at 9.99 (1.69-58.98); P = 0.01. CONCLUSION Our results suggest an association between PHEA and in-hospital mortality in awake hypotensive trauma patients, which is strengthened when hypotension is due to hypovolaemia. If patients are hypovolaemic and awake on scene it might, where possible, be appropriate to delay induction of anaesthesia until hospital arrival.
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Affiliation(s)
- K. Crewdson
- London's Air Ambulance; Barts Health NHS Trust; London UK
- North Bristol NHS Trust; Bristol UK
| | - M. Rehn
- London's Air Ambulance; Barts Health NHS Trust; London UK
- The Norwegian Air Ambulance foundation; Drøbak Norway
| | - K. Brohi
- London's Air Ambulance; Barts Health NHS Trust; London UK
- Barts and the London School of Medicine & Dentistry; Blizard Institute; London UK
| | - D. J. Lockey
- London's Air Ambulance; Barts Health NHS Trust; London UK
- North Bristol NHS Trust; Bristol UK
- The Norwegian Air Ambulance foundation; Drøbak Norway
- Barts and the London School of Medicine & Dentistry; Blizard Institute; London UK
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47
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Abstract
Damage control surgery is a combination of temporizing surgical interventions to arrest hemorrhage and control infectious source, with goal directed resuscitation to restore normal physiology. The convention of damage control surgery largely arose following the discovery of the lethal triad of hypothermia, acidosis, and coagulopathy, with the goal of Damage Control Surgery (DCS) is to avoid the initiation of this "bloody vicious cycle" or to reverse its progression. While hypothermia and acidosis are generally corrected with resuscitation, coagulopathy remains a challenging aspect of DCS, and is exacerbated by excessive crystalloid administration. This chapter focuses on resuscitative principles in the four settings of trauma care: the prehospital setting, emergency department, operating room, and intensive care unit including historical perspectives, resuscitative methods, controversies, and future directions. Each setting provides unique challenges with specific goals of care.
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48
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Smith IM, James RH, Dretzke J, Midwinter MJ. Prehospital Blood Product Resuscitation for Trauma: A Systematic Review. Shock 2018; 46:3-16. [PMID: 26825635 PMCID: PMC4933578 DOI: 10.1097/shk.0000000000000569] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Introduction: Administration of high ratios of plasma to packed red blood cells is a routine practice for in-hospital trauma resuscitation. Military and civilian emergency teams are increasingly carrying prehospital blood products (PHBP) for trauma resuscitation. This study systematically reviewed the clinical literature to determine the extent to which the available evidence supports this practice. Methods: Bibliographic databases and other sources were searched to July 2015 using keywords and index terms related to the intervention, setting, and condition. Standard systematic review methodology aimed at minimizing bias was used for study selection, data extraction, and quality assessment (protocol registration PROSPERO: CRD42014013794). Synthesis was mainly narrative with random effects model meta-analysis limited to mortality outcomes. Results: No prospective comparative or randomized studies were identified. Sixteen case series and 11 comparative studies were included in the review. Seven studies included mixed populations of trauma and non-trauma patients. Twenty-five of 27 studies provided only very low quality evidence. No association between PHBP and survival was found (OR for mortality: 1.29, 95% CI: 0.84–1.96, P = 0.24). A single study showed improved survival in the first 24 h. No consistent physiological or biochemical benefit was identified, nor was there evidence of reduced in-hospital transfusion requirements. Transfusion reactions were rare, suggesting the short-term safety of PHBP administration. Conclusions: While PHBP resuscitation appears logical, the clinical literature is limited, provides only poor quality evidence, and does not demonstrate improved outcomes. No conclusions as to efficacy can be drawn. The results of randomized controlled trials are awaited.
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Affiliation(s)
- Iain M Smith
- *NIHR Surgical Reconstruction and Microbiology Research Centre, University of Birmingham †Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, ICT Centre, Edgbaston, Birmingham ‡205 (Scottish) Field Hospital, Govan, Glasgow §Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine, ICT Centre, Edgbaston, Birmingham
- East Anglian Air Ambulance, Gambling Close, Norwich ¶Ministry of Defence Hospital Unit Derriford, Derriford Hospital, Plymouth, United Kingdom **Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, United Kingdom
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49
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Foster JC, Sappenfield JW, Smith RS, Kiley SP. Initiation and Termination of Massive Transfusion Protocols: Current Strategies and Future Prospects. Anesth Analg 2017; 125:2045-2055. [PMID: 28857793 DOI: 10.1213/ane.0000000000002436] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The advent of massive transfusion protocols (MTP) has had a significant positive impact on hemorrhaging trauma patient morbidity and mortality. Nevertheless, societal MTP guidelines and individual MTPs at academic institutions continue to circulate opposing recommendations on topics critical to MTPs. This narrative review discusses up-to-date information on 2 such topics, the initiation and termination of an MTP. The discussion for each begins with a review of the recommendations and supporting literature presented by MTP guidelines from 3 prominent societies, the American Society of Anesthesiologists, the American College of Surgeons, and the task force for Advanced Bleeding Care in Trauma. This is followed by an in-depth analysis of the main components within those recommendations. Societal recommendations on MTP initiation in hemorrhaging trauma patients emphasize the use of retrospectively validated massive transfusion (MT) prediction score, specifically, the Assessment of Blood Consumption and Trauma-Associated Severe Hemorrhage scores. Validation studies have shown that both scoring systems perform similarly. Both scores reliably identify patients that will not require an MT, while simultaneously overpredicting MT requirements. However, each scoring system has its unique advantages and disadvantages, and this review discusses how specific aspects of each scoring system can affect widespread applicability and statistical performance. In addition, we discuss the often overlooked topic of initiating MT in nontrauma patients and the specific tools physicians have to guide the MT initiation decision in this unique setting. Despite the serious complications that can arise with transfusion of large volumes of blood products, there is considerably less research pertinent to the topic of MTP termination. Societal recommendations on MTP termination emphasize applying clinical reasoning to identify patients who have bleeding source control and are adequately resuscitated. This review, however, focuses primarily on the recommendations presented by the Advanced Bleeding Care in Trauma's MTP guidelines that call for prompt termination of the algorithm-guided model of resuscitation and rapidly transitioning into a resuscitation model guided by laboratory test results. We also discuss the evidence in support of laboratory result-guided resuscitation and how recent literature on viscoelastic hemostatic assays, although limited, highlights the potential to achieve additional benefits from this method of resuscitation.
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Affiliation(s)
- John C Foster
- From the University of Florida College of Medicine, Gainesville, Florida
| | - Joshua W Sappenfield
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
| | - Robert S Smith
- Division of Acute Care Surgery, Department of Surgery, University of Florida College of Medicine, Gainesville, Florida
| | - Sean P Kiley
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
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50
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Kang BH, Choi D, Cho J, Kwon J, Huh Y, Moon J, Kim Y, Jung K, Lee JCJ. Efficacy of Uncross-Matched Type O Packed Red Blood Cell Transfusion to Traumatic Shock Patients: a Propensity Score Match Study. J Korean Med Sci 2017; 32:2058-2063. [PMID: 29115091 PMCID: PMC5680508 DOI: 10.3346/jkms.2017.32.12.2058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/05/2017] [Indexed: 12/20/2022] Open
Abstract
A new blood bank system was established in our trauma bay, which allowed immediate utilization of uncross-matched type O packed red blood cells (UORBCs). We investigated the efficacy of UORBC compared to that of the ABO type-specific packed red blood cells (ABO RBCs) from before the bank was installed. From March 2016 to February 2017, data from trauma patients who received UORBCs in the trauma bay were compared with those of trauma patients who received ABO RBCs from January 2013 to December 2015. Propensity matching was used to overcome retrospective bias. The primary outcome was 24-hour mortality, while the secondary outcomes were in-hospital mortality and intensive care unit (ICU) length of stay (LOS). Data from 252 patients were reviewed and UORBCs were administered to 64 patients. The time to transfusion from emergency room admission was shorter in the UORBC group (11 [7-16] minutes vs. 44 [29-72] minutes, P < 0.001). After propensity matching, 47 patients were included in each group. The 24-hour mortality (4 [8.5%] vs. 9 [13.8%], P = 0.135), in-hospital mortality (14 [29.8%] vs. 18 [38.3%], P = 0.384), and ICU LOS (9 [4-19] days vs. 5 [0-19] days, P = 0.155) did not differ significantly between groups. The utilization of UORBCs resulted in a faster transfusion but did not significantly improve the clinical outcomes in traumatic shock patients in this study. However, the tendency for lower mortality in the UORBC group suggested the need for a large study.
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Affiliation(s)
- Byung Hee Kang
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Donghwan Choi
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Jayun Cho
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Junsik Kwon
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Yo Huh
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Jonghwan Moon
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Younghwan Kim
- Department of Trauma Surgery, National Medical Center, Seoul, Korea
| | - Kyoungwon Jung
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea
| | - John Cook Jong Lee
- Department of Trauma Surgery, Ajou University School of Medicine, Suwon, Korea.
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