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Mould-Millman NK, Wogu AF, Fosdick BK, Dixon JM, Beaty BL, Bhaumik S, Lategan HJ, Stassen W, Schauer SG, Steyn E, Verster J, Wylie C, de Vries S, Jamison M, Kohlbrenner M, Mayet M, Hodsdon L, Wagner L, Snyders LO, Doubell K, Lourens D, Bebarta VS. Association of freeze-dried plasma with 24-h mortality among trauma patients at risk for hemorrhage. Transfusion 2024; 64 Suppl 2:S155-S166. [PMID: 38501905 DOI: 10.1111/trf.17792] [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: 12/29/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Blood products form the cornerstone of contemporary hemorrhage control but are limited resources. Freeze-dried plasma (FDP), which contains coagulation factors, is a promising adjunct in hemostatic resuscitation. We explore the association between FDP alone or in combination with other blood products on 24-h mortality. STUDY DESIGN AND METHODS This is a secondary data analysis from a cross-sectional prospective observational multicenter study of adult trauma patients in the Western Cape of South Africa. We compare mortality among trauma patients at risk of hemorrhage in three treatment groups: Blood Products only, FDP + Blood Products, and FDP only. We apply inverse probability of treatment weighting and fit a multivariable Cox proportional hazards model to assess the hazard of 24-h mortality. RESULTS Four hundred and forty-eight patients were included, and 55 (12.2%) died within 24 h of hospital arrival. Compared to the Blood Products only group, we found no difference in 24-h mortality for the FDP + Blood Product group (p = .40) and a lower hazard of death for the FDP only group (hazard = 0.38; 95% CI, 0.15-1.00; p = .05). However, sensitivity analyses showed no difference in 24-h mortality across treatments in subgroups with moderate and severe shock, early blood product administration, and accounting for immortal time bias. CONCLUSION We found insufficient evidence to conclude there is a difference in relative 24-h mortality among trauma patients at risk for hemorrhage who received FDP alone, blood products alone, or blood products with FDP. There may be an adjunctive role for FDP in hemorrhagic shock resuscitation in settings with significantly restricted access to blood products.
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Affiliation(s)
- Nee-Kofi Mould-Millman
- Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Adane F Wogu
- Department of Biostatistics and Informatics, Colorado School of Public Health, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Bailey K Fosdick
- Department of Biostatistics and Informatics, Colorado School of Public Health, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Julia M Dixon
- Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Brenda L Beaty
- Adult and Child Consortium for Health Outcomes Research and Delivery Science, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Smitha Bhaumik
- Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Hendrick J Lategan
- Division of Surgery, Department of Surgical Sciences, Stellenbosch University, Cape Town, South Africa
| | - Willem Stassen
- Division of Emergency Medicine, University of Cape Town, Cape Town, South Africa
| | - Steven G Schauer
- Department of Anesthesia, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Elmin Steyn
- Division of Surgery, Department of Surgical Sciences, Stellenbosch University, Cape Town, South Africa
| | - Janette Verster
- Division of Forensic Medicine, Department of Pathology, Stellenbosch University, Cape Town, South Africa
| | - Craig Wylie
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - Shaheem de Vries
- Collaborative for Emergency Care in Africa, Cape Town, South Africa
| | - Maria Jamison
- Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Maria Kohlbrenner
- Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Mohammed Mayet
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - Lesley Hodsdon
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - Leigh Wagner
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - L' Oreal Snyders
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - Karlien Doubell
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - Denise Lourens
- Department of Health and Wellness, Western Cape Government, Cape Town, South Africa
| | - Vikhyat S Bebarta
- Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
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Benson MA, Tolich D, Callum JL, Auron M. Plasma: indications, controversies, and opportunities. Postgrad Med 2024; 136:120-130. [PMID: 38362605 DOI: 10.1080/00325481.2024.2320080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 02/13/2024] [Indexed: 02/17/2024]
Abstract
Plasma is overused as a blood product worldwide; however, data supporting appropriate use of plasma is scant. Its most common utilization is for treatment of coagulopathy in actively bleeding patients; it is also used for coagulation optimization prior to procedures with specific coagulation profile targets. A baseline literature review in PUBMED and Google Scholar was done (1 January 2000 to 1 June 2023), utilizing the following search terms: plasma, fresh frozen plasma, lyophilized plasma, indications, massive transfusion protocol, liver disease, warfarin reversal, cardiothoracic surgery, INR < 2. An initial review of the titles and abstracts excluded all articles that were not focused on transfusional medicine. Additional references were obtained from citations within the retrieved articles. This narrative review discusses the main indications for appropriate plasma use, mainly coagulation factor replacement, major hemorrhage protocol, coagulopathy in liver disease, bleeding in the setting of vitamin K antagonists, among others. The correlation between concentration of coagulation factors and INR, as well as the proper plasma dosing with its volume being weight-based, is also discussed. A high value approach to plasma utilization is supported with a review of the clinical situations where plasma is overutilized or unnecessary. Finally, a discussion of novel plasma products is presented for enhanced awareness.
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Affiliation(s)
- Michael A Benson
- Department of General Anesthesiology, Cleveland Clinic, Cleveland, OH, USA
| | - Deborah Tolich
- Blood Management, Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jeannie L Callum
- Department of Laboratory Medicine and Pathobiology, Queens University, Kingston, ON, Canada
| | - Moises Auron
- Department of Hospital Medicine and Department of Pediatric Hospital Medicine, Cleveland Clinic, Outcomes Research Consortium, Cleveland, OH, USA
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Savla C, Palmer AF. Lyophilized annelid mega-hemoglobin retains its' quaternary structure and oxygen equilibrium properties after room temperature storage for over 6 months. PLoS One 2022; 17:e0263996. [PMID: 35176086 PMCID: PMC8853537 DOI: 10.1371/journal.pone.0263996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/31/2022] [Indexed: 11/19/2022] Open
Abstract
The long-term storage stability and portability of hemoglobin (Hb)-based oxygen carriers are important design criteria in the development of these therapeutics. Lyophilization or storing proteins in a freeze-dried form is known to increase storage lifetime and reduce overall weight. In this study, we lyophilized the extracellular mega-hemoglobin of the annelid Lumbricus terrestris and tested the storage stability at different temperatures and oxygenation conditions. Storage in refrigerated conditions for over 6 months in the presence of N2 reduced oxidation by 50% while storage at room temperature in the presence of N2 reduced oxidation by 60%, all while maintaining the structural stability of the mega-hemoglobin. We also demonstrated a reliable strategy to freeze dry Hbs in the presence of a minimally non-reducing disaccharide sugar that could be easily re-solubilized in deionized water. Overall, this study made significant advances towards long term storage stability of oxygen therapeutics for direct applications in transfusion medicine.
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Affiliation(s)
- Chintan Savla
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio, United States of America
| | - Andre F. Palmer
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio, United States of America
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Peng HT, Rhind SG, Devine D, Jenkins C, Beckett A. Ex vivo hemostatic and immuno-inflammatory profiles of freeze-dried plasma. Transfusion 2021; 61 Suppl 1:S119-S130. [PMID: 34269465 DOI: 10.1111/trf.16502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/01/2021] [Accepted: 04/01/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hemorrhage is a leading cause of preventable death in civilian and military trauma. Freeze-dried plasma is promising for hemostatic resuscitation in remote prehospital settings, given its potential benefits in reducing blood loss and mortality, long storage at ambient temperatures, high portability, and rapid reconstitution for transfusion in austere environments. Here we assess the ex vivo characteristics of a novel Terumo's freeze-dried plasma product (TFDP). STUDY DESIGN AND METHODS Rotational thromboelastometry (ROTEM) tests (INTEM, EXTEM, and FIBTEM) were conducted on plasma samples at 37°C with a ROTEM delta-machine using standard reagents and procedures. The following samples were analyzed: pooled plasma to produce TFDP, TFDP reconstituted, and stored immediately at -80°C, reconstituted TFDP stored at 4°C for 24 h and room temperature (RT) for 4 h before freezing at -80°C. Analysis of plasma concentrations of selected cytokines, chemokines, and vascular molecules was performed using a multiplex immunoassay system. One-way ANOVA with post hoc tests assessed differences in hemostatic and inflammatory properties. RESULTS No significant differences in ROTEM variables (coagulation time [CT], clot formation time, α-angle, maximum clot firmness, and lysis index 30) between the TFDP-producing plasma and reconstituted TFDP samples were observed. Compared to control plasma, reconstituted TFDP stored at 4°C for 24 h or RT for 4 h showed a longer INTEM CT. Levels of immuno-inflammatory mediators were similar between frozen plasma and TFDP. CONCLUSIONS TFDP is equivalent to frozen plasma with respect to global hemostatic and immuno-inflammatory mediator profiles. Further investigations of TFDP in trauma-induced coagulopathy models and bleeding patients are warranted.
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Affiliation(s)
- Henry T Peng
- Defence Research and Development Canada, Toronto Research Centre, Toronto, Ontario, Canada
| | - Shawn G Rhind
- Defence Research and Development Canada, Toronto Research Centre, Toronto, Ontario, Canada
| | - Dana Devine
- Canadian Blood Services, Ottawa, Ontario, Canada
| | | | - Andrew Beckett
- St. Michael's Hospital, Toronto, Ontario, Canada.,Royal Canadian Medical Services, Ottawa, Ontario, Canada
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Saunders D, Rose L. Regenerative rehabilitation of catastrophic extremity injury in military conflicts and a review of recent developmental efforts. Connect Tissue Res 2021; 62:83-98. [PMID: 32552156 DOI: 10.1080/03008207.2020.1776707] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AIM OF THE REVIEW This review aims to describe the current state of regenerative rehabilitation of severe military extremity injuries, and promising new therapies on the horizon. DISCUSSION The nature of warfare is rapidly shifting with information operations, autonomous weapons, and the threat of full-scale peer adversary conflicts threatening to create contested environments with delayed medical evacuation to definitive care. More destructive weapons will lead to more devastating injuries, creating new challenges for limb repair and restoration. Current paradigms of delayed rehabilitation following initial stabilization, damage control surgery, and prolonged antibiotic therapy will need to shift. Advances in regenerative medicine technologies offer the possibility of treatment along the continuum of care. Regenerative rehabilitation will begin at the point of injury and require a holistic, organ-systems approach. CONCLUSIONS Both technological improvements and a rapidly advancing understanding of injury pathophysiology will contribute to improved limb-salvage outcomes, and shift the calculus away from early limb amputation.
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Affiliation(s)
- David Saunders
- US Army Medical Material Development Activity, Fort Detrick, MD , USA
| | - Lloyd Rose
- US Army Medical Material Development Activity, Fort Detrick, MD , USA
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