Massive Transfusion in a Military Setting
Sascha Hashemiana, Jan Ammanna
a Department AINS, Bundeswehrkrankenhaus Ulm
Summary
Massive transfusion is a crucial stabilizing measure for severely bleeding trauma patients, characterized by rapid and high blood product use. To manage this effectively, so-called massive transfusion protocols are widely adopted. These hospital-specific standard operating procedures (SOPs) enhance medical care and logistics while reducing the workload on treatment teams. The benefits also offer opportunities in military settings. This article discusses the unique aspects and challenges of massive transfusion in a military context, as well as the advantages of implementing massive transfusion protocols.
Keywords: massive transfusion; massive transfusion protocol (MTP); transfusion in a military context; blood product logistics
Introduction
Hemorrhage is the leading potentially survivable cause of death on the battlefield. Therefore, military medical training has traditionally emphasized hemostasis. When a wounded person with hemorrhage reaches a treatment facility of various levels, one of the main goals is damage control resuscitation (see the article “Damage Control Resuscitation” in this issue). It is now understood that aggressive fluid therapy with crystalloids should be avoided due to its dilution effect on coagulation factors, the risk of developing acidosis, lowering core body temperature, and possibly worsening active bleeding by increasing arterial and venous pressure [4]. Instead, blood products should be administered promptly to bleeding, hemodynamically unstable patients, and in cases of severe bleeding, a massive transfusion protocol (MTP) should be employed. This article aims to describe the specific features of massive transfusion and the options for implementing an MTP in a military setting.
Fig. 1: Illustration of a possible indication algorithm for a massive transfusion protocol
Massive Transfusion Protocol
A massive transfusion is defined as the transfusion of 10 or more units of red blood cell concentrates (RBCs) within 24 hours or 4 or more units within 6 hours. A massive transfusion protocol (MTP) is a standardized, hospital-specific process that coordinates the rapid delivery of various blood products. MTPs are common in civilian trauma care, considered standard practice, and recommended in various guidelines [2]. The purpose of an MTP is to replace blood loss with blood components that match the physiological composition of blood, as well as to provide coagulation therapy.
Suitable criteria for initiating an MTP include injuries with expected significant blood loss (half of the circulating blood volume or ongoing bleeding), lactate levels ≥ 5 mmol/L, systolic blood pressure ≤ 90 mmHg, heart rate ≥ 105/min, and organ dysfunction. Figure 1 schematically illustrates a possible indication algorithm. An MTP initially sets the basic conditions necessary for hemostasis: normothermia, pH > 7.2, and ionized Ca2+ > 0.9 mmol/L. These are derived from the “lethal triad” of trauma – hypothermia, acidosis, and coagulopathy – recently supplemented by hypocalcemia as the “lethal diamond” [6].
The MTP process is usually divided into phases. The initial treatment phase typically includes transfusing 4 units of red blood cells (RBCs), 4 units of fresh frozen plasma (FFP), and 1 unit of platelet concentrate (PC), along with providing additional coagulation products such as fibrinogen, tranexamic acid, and calcium. Early steps like cross-matching extra RBCs, conducting a standard trauma lab, and performing point-of-care (POC) diagnostics should be completed. POC diagnostics encompass venous or arterial blood gas analysis and viscoelastic testing methods like thromboelastography.
In subsequent MTP blocks, additional blood products are transfused in the same ratio (4:4:1), with standardized administration of calcium and fibrinogen based on POC diagnostics. During an MTP, prothrombin complex concentrate (PCC), Factor XIII, Factor VII, and desmopressin may also be given. In patients on anticoagulation, these can be countered with appropriate antidotes or coagulation preparations. Hospital-specific differences often lead to deviations from the standard protocol due to logistical challenges in providing PCs, which can delay the initial administration of a PC until the second or third block, ensuring the 4:4:1 ratio is restored.
Fig. 2: Schematic representation of two MTPs for packaged blood products (left) and whole blood (right) * Adjustment according to clinic and laboratory chemistry necessary
MTPs enable faster, more organized delivery of blood products through logistical planning and enhanced interdisciplinary communication [7]. This also shortens the delay before the first transfusion, directly improving trauma patient care. A meta-analysis showed that implementing an MTP results in a statistically and clinically meaningful reduction in overall mortality among trauma patients [3]. Contrary to some beliefs, MTPs do not increase blood product use; instead, they decrease it [8].
MTP in the Military Context
The benefits demonstrate that MTPs are essential in civilian trauma treatment and can also help injured personnel in military settings. Specifically, structured transfusion protocols and early stabilization of the wounded can reduce treatment times, allowing for quicker surgical interventions.
Due to tactical medical principles and logistical challenges, an MTP is only appropriate for treatment levels of Role 2 and above. In the military setting, a limitation is the reduced availability of blood products. During mass casualty situations, a massive transfusion for a single wounded person may consume so many resources that it significantly affects the care of other injured individuals. In such events, the use of blood products and an MTP must be carefully evaluated to prevent prioritizing one patient at the expense of others. Additionally, storing and transporting RBCs, FFP, and PCs pose challenges because of their different temperature requirements, making whole blood a more suitable option.
Massive Transfusion of Whole Blood
The transfusion of whole blood is an essential aspect of military transfusion medicine. In addition to its well-known benefits, its use becomes particularly important in the context of massive transfusions and MTPs. Physiologically, transfusing whole blood more accurately reflects the blood components that need to be replaced due to blood loss. Whole blood is superior to various concentrates regarding coagulation and coagulation factor activity [9].
The additive solution in whole blood varies in type and amount from those in RBCs, FFP, and PCs. Whole blood contains about 70 ml of a citrate-containing additive solution. RBCs have 100–120 ml of citrate, PCs 100–150 ml, and FFP no volume but also citrate [1][5]. A whole blood equivalent of various concentrates in a 1:1:0.25 ratio contains twice the amount of additive solution with a higher citrate level. This leads to more dilution and increased calcium chelation because of the higher citrate concentration during massive transfusion with concentrates [9].
Another advantage is simpler storage requirements. While RBCs must be refrigerated, FFP frozen, and PCs stored at room temperature with constant agitation, whole blood only needs refrigeration. This lessens the technical and logistical demands on a treatment facility and its supplies. Limitations of using whole blood include its relatively short shelf life compared to plasma products, such as FFP or lyophilized plasma [10].
In practice, the medical treatment team benefits from the reduced number of transfusion bags needed when using whole blood. Using whole blood improves compliance and speeds up the MTP process. Figure 2 illustrates the schematic sequence of an MTP with packaged blood products versus whole blood.
Conclusion
A massive transfusion in a military setting, under conditions of limited personnel and resources and in highly dynamic, hard-to-coordinate situations, presents a significant challenge. Massive transfusion protocols have proved effective in civilian trauma care and could enhance medical treatment and support military medical personnel, especially by using whole blood.
Key Points
- Massive transfusions pose a particular challenge in the military context.
- MTPs are a proven standard in civilian emergency and acute medicine.
- MTPs provide security in massive transfusions and thus relieve medical personnel.
- The military context can benefit from establishing an MTP.
- The use of whole blood simplifies the implementation of massive transfusions and MTPs.
References
- Beeck H, Becker T, Kiessig ST, et al. The influence of citrate concentration on the quality of plasma obtained by automated plasmapheresis: a prospective study. Transfusion. 1999;39(11-12):1266-1270. mehr lesen
- Bieler D, Düsing H, Flohé S, et al. Polytrauma/Schwerverletzten-Behandlung S3-Leitlinie (Langfassung) [Internet]. AWMF 2022 [last access March 15, 2026];available from: https://register.awmf.org/assets/guidelines/187-023l_S3_Polytrauma-Schwerverletzten-Behandlung_2023-06.pdf mehr lesen
- Consunji R, Elseed A, El-Menyar A, et al. The effect of massive transfusion protocol implementation on the survival of trauma patients: a systematic review and meta-analysis. Blood Transfus. 2020;18(6):434-445. mehr lesen
- Dhillon NK, Kwon J, Coimbra R. Fluid resuscitation in trauma: What you need to know. J Trauma Acute Care Surg. 2025;98(1):20-29. mehr lesen
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- Lier H, Hossfeld B. Massive transfusion in trauma. Curr Opin Anaesthesiol. 2024;37(2):117-124. mehr lesen
- Lim G, Harper-Kirksey K, Parekh R, Manini AF. Efficacy of a massive transfusion protocol for hemorrhagic trauma resuscitation. Am J Emerg Med. 2018;36(7):1178-1181. mehr lesen
- O'Keeffe T, Refaai M, Tchorz K, Forestner JE, Sarode R. A massive transfusion protocol to decrease blood component use and costs. Arch Surg. 2008;143(7):686-690; discussion 90-1. mehr lesen
- Ponschab M, Schöchl H, Gabriel C, et al. Haemostatic profile of reconstituted blood in a proposed 1:1:1 ratio of packed red blood cells, platelet concentrate and four different plasma preparations. Anaesthesia. 2015;70(5):528-536. mehr lesen
- Sauer D, Meyer J. Versorgung mit Blut und Blutprodukten in militärischen Einsatzgebieten. Transfusionsmedizin. 2025;15(01):16-27. mehr lesen
Manuscript Data
Citation
Hashemian S, Ammann A. Massive transfusion in a military setting. WMM 2026;70(5E):7.
DOI: https://doi.org/10.48701/opus4-870
For the Authors
Captain (MC) Dr. Sascha Hashemian
Department of Anesthesiology, Intensive Care, Emergency Medicine, and Pain Therapy (AINS)
Bundeswehr Hospital Ulm
Oberer Eselsberg 40, D-89081 Ulm
E-Mail: saschahashemian@bundeswehr.org
Prehospital Blood Product Use in Civilian and Military Settings:
A Systematic Evidence Review of Lyophilized Plasma, Red Blood Cell Concentrates, Whole Blood, and Fibrinogen
Christoph Jäniga, Björn Hossfeldb
a Department of Anesthesiology and Intensive Care Medicine, Bundeswehr Central Hospital Koblenz
b Department of Anesthesiology, Intensive Care, Emergency Medicine, and Pain Medicine, Bundeswehr Hospital Ulm
Summary
Traumatic hemorrhage remains a leading preventable cause of death in both civilian and military trauma cases. Damage control resuscitation (DCR) aims to provide early hemostatic support and to minimize crystalloid volume therapy. The prehospital use of plasma, red blood cell concentrates, fibrinogen, and whole blood is controversial on an international level.
A structured narrative review of randomized controlled trials, multicenter registry analyses, and systematic reviews was conducted, focusing on mortality, transfusion needs, and safety. The evidence was compared across European, U.S., and military settings.
European randomized trials show no significant mortality benefit for prehospital blood product administration, likely due to short transport times. In U.S. air medical systems with longer prehospital phases, there are indications of decreased 30-day mortality. Military registry data consistently indicate the benefits of early balanced transfusion strategies and whole blood in cases of prolonged evacuations. The advantage heavily depends on the time to definitive hemorrhage control.
Prehospital blood product administration is safe and feasible, but its clinical benefit depends on the context. In military situations with extended evacuation times, early implementation of DCR is strategically important.
Keywords: prehospital transfusion; damage control resuscitation; traumatic hemorrhage; whole blood; military medicine
Introduction
This article aims to clarify the current evidence surrounding the prehospital use of various blood products. Traumatic hemorrhage remains a leading preventable cause of death after severe injuries worldwide, in both civilian and military settings [7]. While definitive surgical hemostasis is the primary treatment, early physiological stabilization is crucial for survival during the prehospital phase. The development of trauma-induced coagulopathy (TIC) in the first minutes after injury is highly predictive of outcomes and linked to significantly higher mortality [16][26].
The concept of damage control resuscitation (DCR) originated from military experiences in Iraq and Afghanistan. Data from the Department of Defense Trauma Registry (DoDTR)1
Joint Theater Trauma Registry (JTTR) showed that early, balanced transfusion of plasma and red blood cells in a 1:1 ratio improved survival rates [18][25][27]. At the same time, it became clear that excessive crystalloid fluid therapy could worsen coagulopathy and outcomes [14]. Therefore, DCR takes an integrated approach of permissive hypotension, early support for coagulopathy, and minimizing crystalloid use.
While these strategies are now standard in hospitals and included in international guidelines [8], the role of administering blood products before reaching the hospital remains a topic of ongoing debate. Based on these considerations, rescue helicopters stationed at Bundeswehr hospitals in Hamburg, Koblenz, and Ulm have been carrying blood products, such as red blood cell concentrates, plasma, and coagulation factors, for several years to treat severely injured patients in civilian rescue services (Figures 1 and 2).
Figure 1: Prehospital use of O negative red blood cell concentrates. The antigenic properties of O negative red blood cells allow for safe, universal application (Image rights: Colonel Dr. Hoßfeld, Bundeswehr Hospital Ulm).
Figure 2: Graphical comparative presentation of study results from Europe, the USA, and the military setting. (Image rights: C. Jänig, created with ChatGPT 5.1).
The main question is whether early administration of plasma, red blood cell concentrates, fibrinogen, or whole blood before reaching the trauma center provides a standalone prognostic benefit – or if the primary effect is due to rapid surgical control of bleeding.
Randomized controlled trials from Europe, such as RePHILL and PREHO-PLYO, did not show a significant mortality benefit from prehospital plasma administration [3][19]. In contrast, the U.S. PAMPer study demonstrated a notable reduction in 30-day mortality, especially with longer transport times [12]. However, PAMPer mainly involves secondary transfers of patients initially treated peripherally to trauma centers by helicopter; patients with traumatic brain injury particularly benefited, indicating that plasma administration may have contributed more to circulatory stabilization than to improving coagulation. Military registry analyses consistently report improved survival rates with early “balanced transfusion” and the use of whole blood [28].
These contrasting results raise essential questions about how the effect depends on context. European trauma care systems feature short transport times and a high density of specialized trauma centers. Meanwhile, military scenarios often involve longer evacuation times, limited resources, and a high rate of penetrating injuries [10]. Under these conditions, implementing DCR principles in the prehospital setting could become much more critical.
Furthermore, the increasing security importance of traditional land and alliance defense scenarios, where limited air superiority and delayed evacuation are expected, is emphasized. The concept of “Prolonged Casualty Care” is therefore regaining attention in military medical planning. In these scenarios, the best prehospital blood product strategy poses not only a clinical challenge but also a strategic one.
Therefore, this review aims to:
- Systematically present the current evidence on prehospital administration of plasma, red blood cell concentrates, fibrinogen, and whole blood,
- critically analyze the differences between European, U.S., and military settings,
- contextualize the results within Damage Control Resuscitation, and
- extract military medical implications for future scenarios.
The central hypothesis is that the prognostic effect of prehospital blood product administration is significantly influenced by the time to definitive hemostasis – and therefore system- and scenario-dependent.
Materials and Methods
This work is a structured narrative review with a system-comparative analysis of evidence on prehospital blood product administration in civilian European, U.S., and military settings. The aim was to evaluate randomized controlled trials (RCTs), prospective cohort studies, registry analyses, and systematic reviews regarding clinical endpoints (mortality, transfusion requirements, coagulation parameters, side effects) and to place them in the context of damage control resuscitation (DCR). A formal systematic review with meta-analysis was not conducted; however, the work follows the methodological principles of a structured literature review and transparent evidence presentation.
Literature Search
The literature search was carried out from January to February 2026 in the databases PubMed/MEDLINE, Embase, and Cochrane Library. Reference lists of relevant guidelines and reviews were also manually searched.
The search strategy combined the following keywords and MeSH terms:
- “prehospital blood transfusion”,
- “damage control resuscitation”,
- “freeze-dried plasma” / “lyophilized plasma”,
- “whole blood transfusion”,
- “fibrinogen concentrate”,
- “military trauma”,
- “combat casualty care”, and
- “hemorrhagic shock”.
The search was limited to publications in English and German. No specific time limit was set, but the focus was on publications from 2005 onward, as modern DCR strategies have been systematically implemented since then.
System Comparison
For comparing Germany/Europe, the U.S. (civilian), and military environments, the following systemic parameters were considered:
- median prehospital transport time,
- mechanism of injury (blunt vs. penetrating),
- availability of surgical resources,
- implementation level of DCR principles.
The analysis was hypothesis-driven, assuming that time to definitive hemostasis is a key factor influencing the effect of prehospital blood products.
Military Medical Context
For evaluating military evidence, additional data from the DoDTR, Tactical Combat Casualty Care (TCCC) publications, and military whole blood programs were considered. The focus was especially on operational conditions, particularly on prolonged casualty/field care, evacuation delays, and infrastructural/resource limitations.
Results
Overview of Included Evidence
The structured analysis involved randomized controlled trials (RCTs), prospective cohort studies, multicenter registry analyses, and systematic reviews. The evidence is unevenly distributed among the three care settings examined:
- Europe (especially the UK, France, Germany): several RCTs on prehospital plasma administration [3][19], a pilot randomized study on fibrinogen [23], and additional registry and observational data [11].
- U.S. (civilian): two larger RCTs (PAMPer, COMBAT) [12][13] and secondary analyses [20][31].
- Military setting: registry analyses from Afghanistan and Iraq, cohort studies on balanced transfusion and whole blood [11][18][28].
The main endpoints of the included studies were mostly 24-hour and 30-day mortality. Secondary endpoints included transfusion needs, coagulation parameters, and transfusion-related complications.
Results in the European Setting
Plasma
The RePHILL study randomized patients with traumatic hemorrhagic shock to prehospital administration of red blood cell concentrates and lyophilized plasma versus standard therapy with crystalloid infusion [3]. No significant difference was found in the primary combined endpoint of 30-day mortality and lactate clearance. Additionally, there was no significant advantage in isolated mortality. The PREHO-PLYO study examined prehospital administration of lyophilized plasma compared to standard therapy [19]. It showed an improvement in some coagulation parameters upon hospital admission but no significant reduction in mortality. Systematic reviews and meta-analyses that included these studies confirmed the absence of a consistent mortality benefit in the European setting [6].
Red Blood Cell Concentrates
Observational studies and registry data from Germany and France show that prehospital administration of red blood cell concentrates (EK) is technically feasible and safe [1]. However, a clear reduction in 30-day mortality has not been consistently demonstrated.
Fibrinogen
The FIinTIC study examined the prehospital use of fibrinogen concentrate in patients with traumatic bleeding [23]. The study found a significant improvement in viscoelastic coagulation parameters (ROTEM), but no significant difference in clinical outcomes, such as mortality or transfusion requirements. Since it was a pilot study, it was not designed to detect differences in key endpoints.
Results in the U.S. Civilian Setting
PAMPer Study
The PAMPer study randomized trauma patients at risk of hemorrhagic shock during air transport to receive plasma or standard therapy [12]. The 30-day mortality was 23% in the plasma group compared to 33% in the control group. This represents a significant absolute risk reduction. Subgroup analyses revealed a particularly notable effect in:
- longer transport times,
- severe hypotension, and
- patients with concomitant traumatic brain injury [31].
COMBAT Study
The COMBAT study examined a similar question in urban ground-based emergency medical services with shorter transport times [13]. In this case, there was no significant difference in mortality between the intervention and control groups.
Secondary analyses of PAMPer data revealed a decrease in endothelial activation markers and signs of better early hemostasis [20]. Registry data from U.S. trauma centers indicate that the use of plasma and EK in severe bleeding may be linked to improved early outcomes [27].
Results in the Military Setting
Balanced Transfusion
Analysis of the DoDTR revealed a significant association between early balanced transfusion (plasma:EK ratio near 1:1) and improved survival in severely injured soldiers [18][25].
Whole Blood
Several military cohort studies show significantly reduced 24-hour and 30-day mortality with the use of whole blood compared to component strategies [11][22][28]. Whole blood was especially linked to better survival rates in patients experiencing massive bleeding and penetrating injuries.
Safety Profile
Military data show no significantly increased risk of transfusion-related complications with early administration of plasma or whole blood [11][28].
Comparison of Transport Times and Injury Patterns
In European RCTs, median prehospital transport time is typically under 25 minutes [3][19]. In the PAMPer study, it often exceeded 30 minutes [12]. Military evacuation times frequently surpass 60 minutes [10][25]. Regarding injury patterns, blunt trauma is predominant in European civilian emergency services, whereas military injuries are often penetrating or related to explosions [10][25].
Safety and Side Effects
Neither European nor U.S. RCTs reported a significant increase in serious transfusion-related adverse events (e.g., TRALI, thromboembolic events) [6]. Military data also confirm an acceptable safety profile for early administration of blood products [11][28].
Comparison of Civil European, U.S., and Military Evidence for Prehospital Blood Product Administration
The scientific evidence for prehospital blood product transfusion reveals clear differences between European, U.S., and military care settings. While European randomized studies did not consistently show a mortality benefit, U.S. data under specific conditions indicated a significant survival advantage. Military registry analyses also demonstrated consistent positive effects of earlier balanced transfusion strategies.
The PAMPer study [25] showed an approximately 10% absolute reduction in 30-day mortality through prehospital plasma administration during air transport in a cluster-randomized design. Secondary analyses indicated that this benefit was especially notable with transport times longer than 20 minutes and in cases of severe hemorrhagic shock. Conversely, the COMBAT study [21], which involved shorter transport times, did not reveal a significant survival benefit, suggesting a time-dependent effect.
In Europe, neither RePHILL [3] nor PREHO-PLYO [19] demonstrated a reduction in mortality. These studies are characterized by shorter prehospital care times and a high rate of blunt trauma. In highly developed trauma centers with rapid surgical hemostasis, the additional benefit of prehospital plasma administration appears limited.
Military data from Afghanistan and Iraq [25] consistently show improved survival rates with early balanced transfusion strategies, especially when using whole blood. These results should be viewed in the context of longer evacuation times, a high incidence of penetrating injuries, and significant blood loss. Early coagulation support becomes critically important under these conditions.
Table 1: The table shows that in the European setting, despite randomized studies, no significant mortality advantage from prehospital blood product administration could be demonstrated. In contrast, a significant survival advantage with longer transport times emerged in U.S. air rescue. Military registry analyses consistently show reduced early and 30-day mortality with earlier balanced transfusion and whole blood strategies. (The table was created with Chat GPT 5.1).
Discussion
Interpretation of Results in the International Context
The current data show a consistent but context-dependent pattern: While in European civilian emergency services, despite methodologically high-quality randomized studies, no significant mortality benefit from prehospital blood product administration is detectable [3][19], the U.S. PAMPer study demonstrates a significant reduction in 30-day mortality under certain conditions [12]. Military registry analyses repeatedly report improved survival rates through early balanced transfusion and the use of whole blood [18][28]. This divergence is less a contradiction than a reflection of structural differences in care.
Transport Time as a Key Factor
A central finding of the comparative analysis is the significance of prehospital time to achieve definitive hemostasis. In European studies, the median transport time was generally under 25 minutes [3][19]. However, in the PAMPer study, it was often over 30 minutes [12]. It should be noted that PAMPer only considers the helicopter transport time, not the total time from injury, as patients might have experienced longer care times before air transport was initiated. Military evacuation times frequently reach 60 minutes or more [10][25].
Pathophysiologically, it is believed that trauma-induced coagulopathy (TIC) progresses during the early shock phase and worsens with longer periods of hypoperfusion [15][26]. Plasma provides not only its coagulation role but also endothelial protective effects [15][24]. These mechanisms become increasingly important as the duration of untreated shock lengthens.
The findings from PAMPer and COMBAT support this hypothesis indirectly: while a mortality benefit was observed with longer transport times [12], there was no significant effect seen with shorter urban transport times [13].
Injury Patterns and Pathophysiology
In addition to transport time, the injury patterns in investigations show significant differences. European trauma centers are mostly faced with blunt trauma. In contrast, military injuries are often penetrating or related to explosions [10][25].
Penetrating injuries more frequently cause sudden massive blood loss and vascular damage. Subgroup analyses of civilian-military data suggest that these patients might benefit more from early plasma therapy [20]. The higher rate of massive bleeding in military cases could partly explain the stronger observed effect.
Balanced Transfusion versus Whole Blood
Military evidence consistently shows positive links between early balanced transfusion (plasma:EK ratio approximately 1:1) and survival [18][25]. Simultaneously, whole blood is increasingly gaining importance [4][21][28].
Whole blood offers several theoretical benefits:
- natural ratio of blood components,
- simpler logistics,
- less exposure to multiple donors, and
- lower administrative complexity during deployment.
Registry data suggest a decrease in early mortality with the use of whole blood [11][28]. However, these findings are mainly based on observational data, so confounding effects cannot be fully excluded. Randomized military studies are currently missing. Nevertheless, whole blood seems strategically sound in situations with prolonged evacuation and limited resources.
Fibrinogen – Biological Plausibility versus Clinical Evidence
Fibrinogen is often the earliest limiting coagulation factor in severe bleeding [9]. The FIinTIC study showed an improvement in viscoelastic parameters [23], but could not demonstrate a mortality benefit. Newer meta-analyses also confirm the lack of robust clinical endpoint effects [17][22]. Possible reasons include:
- small sample sizes,
- heterogeneous patient selection, and
- combination with other transfusion strategies.
In military settings with a high incidence of massive blood loss, targeted substitution could still play a role, particularly alongside point-of-care diagnostics.
Safety of Prehospital Blood Product Administration
A key finding from the current evidence is the consistently positive safety profile. Neither European nor U.S. RCTs showed a notable increase in serious transfusion-related complications [6]. Military registry data also support an acceptable risk profile [11][28]. This finding is especially important for military operational scenarios, where risk-benefit assessments must be made under tactical conditions.
Transferability to Future Scenarios
Considering potential scenarios of conventional land and alliance defense, changing conditions are anticipated:
- limited air superiority,
- delayed evacuation times along the rescue chain, and
- overloaded surgical capacities.
Therefore, the concept of prolonged casualty care becomes increasingly important. Under these circumstances, prehospital DCR strategies grow more relevant. Existing evidence suggests that, especially with extended care, early blood component or whole blood transfusion could have prognostic significance.
Limitations of the Evidence
The analysis faces several limitations:
- heterogeneity among study populations,
- varying and potentially unfavorable endpoint definitions,
- lack of randomized military studies, and
- possible selection and survivorship bias in registry analyses.
Trauma care includes numerous measures and treatment steps, from prehospital rescue to shock room care, often involving multiple surgeries and multi-day intensive therapy. Judging the impact of administering two units of red blood cell concentrates or plasma at the start of care on patient outcomes is like assessing the success of a Himalayan expedition based solely on whether climbers drink tea or coffee at base camp. Additionally, it is important to note that most studies were conducted within well-developed healthcare systems. The applicability of these findings to extended military conflict scenarios with large numbers of casualties remains uncertain.
In summary, the evidence indicates that the benefit of prehospital blood products is mostly influenced by system factors. Specifically, the time to achieve definitive hemostasis plays a key role in this effect. For military situations with potentially longer care durations, early adoption of DCR principles in the prehospital setting appears especially important.
Conclusion
The current data oppose a universal, system-independent recommendation for prehospital blood product use. Instead, a context-specific effect is clear, significantly influenced by
- transport time,
- injury pattern,
- infrastructure, and
- available operative resources.
In urban European settings with short transport times, the additional mortality benefit appears limited. However, in military settings with extended evacuation times, early damage control resuscitation (DCR) principles become strategically important.
Key messages
- The benefit of prehospital blood products is highly dependent on the context and increases with longer transport times to definitive hemostasis.
- In civilian European emergency services with brief transport durations, a clear mortality advantage has not yet been established; selective indications are necessary.
- In military scenarios with prolonged evacuation, early damage control resuscitation strategies are highly relevant operationally.
- The prehospital use of low-titer O whole blood offers logistical advantages and may provide better hemostatic effectiveness.
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Manuscript Data
Citation
Jänig C, Hossfeld B. Prehospital Blood Product Use in Civilian and Military Settings – Evidence, System Comparison, and Incorporation into Damage Control Resuscitation. WMM 2026;70(5E):8.
DOI: https://doi.org/10.48701/opus4-872
For the Authors
Commander (Navy MC) Dr. Christoph Jänig
Department of Anesthesiology and Intensive Care
Bundeswehr Central Hospital Koblenz
Rübenacher Str. 170, D-56072 Koblenz
E-Mail: christoph.jaenig@gmail.com
1The Joint Theater Trauma Registry (JTTR), established in 2004, was transferred to the Department of Defense Trauma Registry (DoDTR) in 2011.