Skip to main content
Top
Published in: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 1/2015

Open Access 01-12-2015 | Original research

Functional capacity of reconstituted blood in 1:1:1 versus 3:1:1 ratios: A thrombelastometry study

Authors: Arne Driessen, Nadine Schäfer, Ursula Bauerfeind, Sigune Kaske, Carolin Fromm-Dornieden, Ewa K Stuermer, Marc Maegele

Published in: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine | Issue 1/2015

Login to get access

Abstract

Introduction

Different transfusion ratio concepts of packed red blood cells (pRBCs), fresh frozen plasma (FFP) and platelets (PLTs) have been implemented in trauma care, but the optimal ratios are still discussed. In this study the hemostatic potential of two predefined ratios was assessed by using an in vitro thrombelastometric approach. Furthermore, age effects of reconstituted blood were analyzed.

Methods

Whole blood (WB) of voluntary donors was separated into pRBCs, FFP and PLTs and reconstituted into the ratios 1:1:1 and 3:1:1 at day 1, 4, 14, and 24. Standard blood count, electrolytes and coagulation proteins were quantified. The functional coagulation in ratio- and age-specific groups was evaluated using rotational thromboelastometry (ROTEM).

Results

Several coagulation factors reduced significantly in the 3:1:1 ratio and were consistent with increased INR, decelerated clot formation times and A10 (amplitude 10 minutes after clotting time (CT)), flattened α-angle during the EXTEM and diminished MCF for distinct time points during the INTEM, FIBTEM and APTEM assays. With rising age of pRBCs the pH, sodium and potassium reached non-physiological levels.

Conclusion

Under standardized in vitro conditions the higher amount of pRBCs in the 3:1:1 ratio diluted coagulation factors significantly on the expense of its functional coagulation capacity as revealed by ROTEM results. Thus, the coagulation functionality of the 1:1:1 ratio predominated.
Literature
1.
go back to reference Curry N, Stanworth S, Hopewell S, Dorée C, Brohi K, Hyde C. Trauma-induced coagulopathy--a review of the systematic reviews: is there sufficient evidence to guide clinical transfusion practice? Transfus Med Rev. 2011;25:217–31. e2.PubMedCrossRef Curry N, Stanworth S, Hopewell S, Dorée C, Brohi K, Hyde C. Trauma-induced coagulopathy--a review of the systematic reviews: is there sufficient evidence to guide clinical transfusion practice? Transfus Med Rev. 2011;25:217–31. e2.PubMedCrossRef
2.
go back to reference Borgman MA, Spinella PC, Perkins JG, Grathwohl KW, Repine T, Beekley AC, et al. The ratio of blood products transfused affects mortality in patients receiving massive transfusions at a combat support hospital. J Trauma. 2007;63:805–13.PubMedCrossRef Borgman MA, Spinella PC, Perkins JG, Grathwohl KW, Repine T, Beekley AC, et al. The ratio of blood products transfused affects mortality in patients receiving massive transfusions at a combat support hospital. J Trauma. 2007;63:805–13.PubMedCrossRef
3.
go back to reference Gunter OL, Au BK, Isbell JM, Mowery NT, Young PP, Cotton BA. Optimizing outcomes in damage control resuscitation: identifying blood product ratios associated with improved survival. J Trauma. 2008;65:527–34.PubMedCrossRef Gunter OL, Au BK, Isbell JM, Mowery NT, Young PP, Cotton BA. Optimizing outcomes in damage control resuscitation: identifying blood product ratios associated with improved survival. J Trauma. 2008;65:527–34.PubMedCrossRef
4.
go back to reference Hoyt DB, Dutton RP, Hauser CJ, Hess JR, Holcomb JB, Kluger Y, et al. Management of coagulopathy in the patients with multiple injuries: results from an international survey of clinical practice. J Trauma. 2008;65:755–64. discussion 764–5.PubMedCrossRef Hoyt DB, Dutton RP, Hauser CJ, Hess JR, Holcomb JB, Kluger Y, et al. Management of coagulopathy in the patients with multiple injuries: results from an international survey of clinical practice. J Trauma. 2008;65:755–64. discussion 764–5.PubMedCrossRef
5.
6.
go back to reference Levi M, Fries D, Gombotz H, van der Linden P, Nascimento B, Callum JL, et al. Prevention and treatment of coagulopathy in patients receiving massive transfusions. Vox Sang. 2011;101:154–74.PubMedCrossRef Levi M, Fries D, Gombotz H, van der Linden P, Nascimento B, Callum JL, et al. Prevention and treatment of coagulopathy in patients receiving massive transfusions. Vox Sang. 2011;101:154–74.PubMedCrossRef
7.
go back to reference Lier H, Krep H, Schroeder S, Stuber F. Preconditions of hemostasis in trauma: a review. The influence of acidosis, hypocalcemia, anemia, and hypothermia on functional hemostasis in trauma. J Trauma. 2008;65:951–60.PubMedCrossRef Lier H, Krep H, Schroeder S, Stuber F. Preconditions of hemostasis in trauma: a review. The influence of acidosis, hypocalcemia, anemia, and hypothermia on functional hemostasis in trauma. J Trauma. 2008;65:951–60.PubMedCrossRef
8.
go back to reference Cushing M, Shaz BH. Blood transfusion in trauma patients: unresolved questions. Minerva Anestesiol. 2011;77:349–59.PubMed Cushing M, Shaz BH. Blood transfusion in trauma patients: unresolved questions. Minerva Anestesiol. 2011;77:349–59.PubMed
9.
go back to reference Stahel PF, Moore EE, Schreier SL, Flierl MA, Kashuk JL. Transfusion strategies in postinjury coagulopathy. Curr Opin Anaesthesiol. 2009;22:289–98.PubMedCrossRef Stahel PF, Moore EE, Schreier SL, Flierl MA, Kashuk JL. Transfusion strategies in postinjury coagulopathy. Curr Opin Anaesthesiol. 2009;22:289–98.PubMedCrossRef
10.
go back to reference Johansson PI, Stensballe J. Hemostatic resuscitation for massive bleeding: the paradigm of plasma and platelets–a review of the current literature. Transfusion. 2010;50:701–10.PubMedCrossRef Johansson PI, Stensballe J. Hemostatic resuscitation for massive bleeding: the paradigm of plasma and platelets–a review of the current literature. Transfusion. 2010;50:701–10.PubMedCrossRef
11.
go back to reference Phan HH, Wisner DH. Should we increase the ratio of plasma/platelets to red blood cells in massive transfusion: what is the evidence? Vox Sang. 2010;98(3 Pt 2):395–402.PubMedCrossRef Phan HH, Wisner DH. Should we increase the ratio of plasma/platelets to red blood cells in massive transfusion: what is the evidence? Vox Sang. 2010;98(3 Pt 2):395–402.PubMedCrossRef
12.
go back to reference Maegele M, Lefering R, Paffrath T, Tjardes T, Simanski C, Bouillon B. Red-blood-cell to plasma ratios transfused during massive transfusion are associated with mortality in severe multiple injury: a retrospective analysis from the Trauma Registry of the Deutsche Gesellschaft für Unfallchirurgie. Vox Sang. 2008;95:112–9.PubMedCrossRef Maegele M, Lefering R, Paffrath T, Tjardes T, Simanski C, Bouillon B. Red-blood-cell to plasma ratios transfused during massive transfusion are associated with mortality in severe multiple injury: a retrospective analysis from the Trauma Registry of the Deutsche Gesellschaft für Unfallchirurgie. Vox Sang. 2008;95:112–9.PubMedCrossRef
13.
go back to reference Kozek-Langenecker S, Sørensen B, Hess JR, Spahn DR. Clinical effectiveness of fresh frozen plasma compared with fibrinogen concentrate: a systematic review. Crit Care. 2011;15:R239.PubMedCentralPubMedCrossRef Kozek-Langenecker S, Sørensen B, Hess JR, Spahn DR. Clinical effectiveness of fresh frozen plasma compared with fibrinogen concentrate: a systematic review. Crit Care. 2011;15:R239.PubMedCentralPubMedCrossRef
14.
go back to reference Lier H, Böttiger BW, Hinkelbein J, Krep H, Bernhard M. Coagulation management in multiple trauma: a systematic review. Intensive Care Med. 2011;37:572–82.PubMedCrossRef Lier H, Böttiger BW, Hinkelbein J, Krep H, Bernhard M. Coagulation management in multiple trauma: a systematic review. Intensive Care Med. 2011;37:572–82.PubMedCrossRef
15.
go back to reference Rajasekhar A, Gowing R, Zarychanski R, Arnold DM, Lim W, Crowther MA, et al. Survival of trauma patients after massive red blood cell transfusion using a high or low red blood cell to plasma transfusion ratio. Crit Care Med. 2011;39:1507–13.PubMedCrossRef Rajasekhar A, Gowing R, Zarychanski R, Arnold DM, Lim W, Crowther MA, et al. Survival of trauma patients after massive red blood cell transfusion using a high or low red blood cell to plasma transfusion ratio. Crit Care Med. 2011;39:1507–13.PubMedCrossRef
16.
go back to reference Murad MH, Stubbs JR, Gandhi MJ, Wang AT, Paul A, Erwin PJ, et al. The effect of plasma transfusion on morbidity and mortality: a systematic review and meta-analysis. Transfusion. 2010;50:1370–83.PubMedCrossRef Murad MH, Stubbs JR, Gandhi MJ, Wang AT, Paul A, Erwin PJ, et al. The effect of plasma transfusion on morbidity and mortality: a systematic review and meta-analysis. Transfusion. 2010;50:1370–83.PubMedCrossRef
17.
go back to reference Koch CG, Li L, Sessler DI, Figueroa P, Hoeltge GA, Mihaljevic T, et al. Duration of red-cell storage and complications after cardiac surgery. N Engl J Med. 2008;358:1229–39.PubMedCrossRef Koch CG, Li L, Sessler DI, Figueroa P, Hoeltge GA, Mihaljevic T, et al. Duration of red-cell storage and complications after cardiac surgery. N Engl J Med. 2008;358:1229–39.PubMedCrossRef
18.
go back to reference Tung J-P, Fraser JF, Nataatmadja M, Colebourne KI, Barnett AG, Glenister KM, et al. Age of blood and recipient factors determine the severity of transfusion-related acute lung injury (TRALI). Crit Care. 2012;16:R19.PubMedCentralPubMedCrossRef Tung J-P, Fraser JF, Nataatmadja M, Colebourne KI, Barnett AG, Glenister KM, et al. Age of blood and recipient factors determine the severity of transfusion-related acute lung injury (TRALI). Crit Care. 2012;16:R19.PubMedCentralPubMedCrossRef
19.
go back to reference Solomon SB, Wang D, Sun J, Kanias T, Feng J, Helms CC, et al. Mortality increases after massive exchange transfusion with older stored blood in canines with experimental pneumonia. Blood. 2013;121:1663–72.PubMedCentralPubMedCrossRef Solomon SB, Wang D, Sun J, Kanias T, Feng J, Helms CC, et al. Mortality increases after massive exchange transfusion with older stored blood in canines with experimental pneumonia. Blood. 2013;121:1663–72.PubMedCentralPubMedCrossRef
20.
go back to reference Inaba K, Branco BC, Rhee P, Blackbourne LH, Holcomb JB, Spinella PC, et al. Impact of the duration of platelet storage in critically ill trauma patients. J Trauma. 2011;71:1766–73. discussion 1773–4.PubMedCrossRef Inaba K, Branco BC, Rhee P, Blackbourne LH, Holcomb JB, Spinella PC, et al. Impact of the duration of platelet storage in critically ill trauma patients. J Trauma. 2011;71:1766–73. discussion 1773–4.PubMedCrossRef
21.
go back to reference Spinella PC, Carroll CL, Staff I, Gross R, Mc Quay J, Keibel L, et al. Duration of red blood cell storage is associated with increased incidence of deep vein thrombosis and in hospital mortality in patients with traumatic injuries. Crit Care. 2009;13:R151.PubMedCentralPubMedCrossRef Spinella PC, Carroll CL, Staff I, Gross R, Mc Quay J, Keibel L, et al. Duration of red blood cell storage is associated with increased incidence of deep vein thrombosis and in hospital mortality in patients with traumatic injuries. Crit Care. 2009;13:R151.PubMedCentralPubMedCrossRef
22.
go back to reference Weinberg JA, McGwin G, Griffin RL, Huynh VQ, Cherry SA, Marques MB, et al. Age of transfused blood: an independent predictor of mortality despite universal leukoreduction. J Trauma. 2008;65:279–82. discussion 282–4.PubMedCrossRef Weinberg JA, McGwin G, Griffin RL, Huynh VQ, Cherry SA, Marques MB, et al. Age of transfused blood: an independent predictor of mortality despite universal leukoreduction. J Trauma. 2008;65:279–82. discussion 282–4.PubMedCrossRef
23.
go back to reference Wang D, Sun J, Solomon SB, Klein HG, Natanson C. Transfusion of older stored blood and risk of death: a meta-analysis. Transfusion. 2012;52:1184–95.PubMedCrossRef Wang D, Sun J, Solomon SB, Klein HG, Natanson C. Transfusion of older stored blood and risk of death: a meta-analysis. Transfusion. 2012;52:1184–95.PubMedCrossRef
24.
go back to reference Leal-Noval SR, Muñoz-Gómez M, Arellano-Orden V, Marín-Caballos A, Amaya-Villar R, Marín A, et al. Impact of age of transfused blood on cerebral oxygenation in male patients with severe traumatic brain injury. Crit Care Med. 2008;36:1290–6.PubMedCrossRef Leal-Noval SR, Muñoz-Gómez M, Arellano-Orden V, Marín-Caballos A, Amaya-Villar R, Marín A, et al. Impact of age of transfused blood on cerebral oxygenation in male patients with severe traumatic brain injury. Crit Care Med. 2008;36:1290–6.PubMedCrossRef
25.
go back to reference Frank SM, Abazyan B, Ono M, Hogue CW, Cohen DB, Berkowitz DE, et al. Decreased erythrocyte deformability after transfusion and the effects of erythrocyte storage duration. Anesth Analg. 2013;116:975–81.PubMedCentralPubMedCrossRef Frank SM, Abazyan B, Ono M, Hogue CW, Cohen DB, Berkowitz DE, et al. Decreased erythrocyte deformability after transfusion and the effects of erythrocyte storage duration. Anesth Analg. 2013;116:975–81.PubMedCentralPubMedCrossRef
26.
go back to reference Tinmouth A, Chin-Yee I. The clinical consequences of the red cell storage lesion. Transfus Med Rev. 2001;15:91–107.PubMedCrossRef Tinmouth A, Chin-Yee I. The clinical consequences of the red cell storage lesion. Transfus Med Rev. 2001;15:91–107.PubMedCrossRef
27.
go back to reference Simak J, Gelderman MP. Cell membrane microparticles in blood and blood products: potentially pathogenic agents and diagnostic markers. Transfus Med Rev. 2006;20:1–26.PubMedCrossRef Simak J, Gelderman MP. Cell membrane microparticles in blood and blood products: potentially pathogenic agents and diagnostic markers. Transfus Med Rev. 2006;20:1–26.PubMedCrossRef
28.
go back to reference Holovati JL, Wong KA, Webster JM, Acker JP. The effects of cryopreservation on red blood cell microvesiculation, phosphatidylserine externalization, and CD47 expression. Transfusion. 2008;48:1658–68.PubMedCrossRef Holovati JL, Wong KA, Webster JM, Acker JP. The effects of cryopreservation on red blood cell microvesiculation, phosphatidylserine externalization, and CD47 expression. Transfusion. 2008;48:1658–68.PubMedCrossRef
29.
go back to reference Almizraq R, Tchir JDR, Holovati JL, Acker JP. Storage of red blood cells affects membrane composition, microvesiculation, and in vitro quality. Transfusion. 2013;53:2258–67.PubMed Almizraq R, Tchir JDR, Holovati JL, Acker JP. Storage of red blood cells affects membrane composition, microvesiculation, and in vitro quality. Transfusion. 2013;53:2258–67.PubMed
30.
go back to reference Gonzalez EA, Moore FA, Holcomb JB, Miller CC, Kozar RA, Todd SR, et al. Fresh frozen plasma should be given earlier to patients requiring massive transfusion. J Trauma. 2007;62:112–9.PubMedCrossRef Gonzalez EA, Moore FA, Holcomb JB, Miller CC, Kozar RA, Todd SR, et al. Fresh frozen plasma should be given earlier to patients requiring massive transfusion. J Trauma. 2007;62:112–9.PubMedCrossRef
31.
go back to reference Baraniuk S, Tilley BC, del Junco DJ, Fox EE, van Belle G, Wade CE, et al. Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) Trial: Design, rationale and implementation. Injury. 2014;45:1287–95.PubMedCrossRef Baraniuk S, Tilley BC, del Junco DJ, Fox EE, van Belle G, Wade CE, et al. Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) Trial: Design, rationale and implementation. Injury. 2014;45:1287–95.PubMedCrossRef
32.
go back to reference Tholpady A, Monson J, Radovancevic R, Klein K, Bracey A. Analysis of prolonged storage on coagulation Factor (F)V, FVII, and FVIII in thawed plasma: is it time to extend the expiration date beyond 5 days? Transfusion. 2013;53:645–50.PubMedCrossRef Tholpady A, Monson J, Radovancevic R, Klein K, Bracey A. Analysis of prolonged storage on coagulation Factor (F)V, FVII, and FVIII in thawed plasma: is it time to extend the expiration date beyond 5 days? Transfusion. 2013;53:645–50.PubMedCrossRef
33.
34.
go back to reference Spahn DR, Bouillon B, Cerny V, Coats TJ, Duranteau J, Fernández-Mondéjar E, et al. Management of bleeding and coagulopathy following major trauma: an updated European guideline. Crit Care. 2013;17:R76.PubMedCentralPubMedCrossRef Spahn DR, Bouillon B, Cerny V, Coats TJ, Duranteau J, Fernández-Mondéjar E, et al. Management of bleeding and coagulopathy following major trauma: an updated European guideline. Crit Care. 2013;17:R76.PubMedCentralPubMedCrossRef
35.
go back to reference Farber MK, Sadana N, Kaufman RM, Liu X, Kodali BS. Transfusion ratios for postpartum hemodilutional coagulopathy: an in vitro thromboelastographic model. Am J Obstet Gynecol. 2014;210:323. e1–7.PubMed Farber MK, Sadana N, Kaufman RM, Liu X, Kodali BS. Transfusion ratios for postpartum hemodilutional coagulopathy: an in vitro thromboelastographic model. Am J Obstet Gynecol. 2014;210:323. e1–7.PubMed
36.
go back to reference Agren A, Edgren G, Kardell M, Ostlund A, Wikman AT. In vitro combinations of red blood cell, plasma and platelet components evaluated by thromboelastography. Blood Transfus. 2014;12:491–6.PubMedCentralPubMed Agren A, Edgren G, Kardell M, Ostlund A, Wikman AT. In vitro combinations of red blood cell, plasma and platelet components evaluated by thromboelastography. Blood Transfus. 2014;12:491–6.PubMedCentralPubMed
37.
go back to reference Wafaisade A, Wutzler S, Lefering R, Tjardes T, Banerjee M, Paffrath T, et al. MMTR of D: Drivers of acute coagulopathy after severe trauma: a multivariate analysis of 1987 patients. Emerg Med J. 2010;27:934–9.PubMedCrossRef Wafaisade A, Wutzler S, Lefering R, Tjardes T, Banerjee M, Paffrath T, et al. MMTR of D: Drivers of acute coagulopathy after severe trauma: a multivariate analysis of 1987 patients. Emerg Med J. 2010;27:934–9.PubMedCrossRef
38.
go back to reference Meng ZH, Wolberg AS, Monroe DM, Hoffman M. The effect of temperature and pH on the activity of factor VIIa: implications for the efficacy of high-dose factor VIIa in hypothermic and acidotic patients. J Trauma. 2003;55:886–91.PubMedCrossRef Meng ZH, Wolberg AS, Monroe DM, Hoffman M. The effect of temperature and pH on the activity of factor VIIa: implications for the efficacy of high-dose factor VIIa in hypothermic and acidotic patients. J Trauma. 2003;55:886–91.PubMedCrossRef
39.
go back to reference Engström M, Schött U, Romner B, Reinstrup P. Acidosis impairs the coagulation: A thromboelastographic study. J Trauma. 2006;61:624–8.PubMedCrossRef Engström M, Schött U, Romner B, Reinstrup P. Acidosis impairs the coagulation: A thromboelastographic study. J Trauma. 2006;61:624–8.PubMedCrossRef
40.
go back to reference Ostrowski SR, Johansson PI. Endothelial glycocalyx degradation induces endogenous heparinization in patients with severe injury and early traumatic coagulopathy. J Trauma Acute Care Surg. 2012;73:60–6.PubMedCrossRef Ostrowski SR, Johansson PI. Endothelial glycocalyx degradation induces endogenous heparinization in patients with severe injury and early traumatic coagulopathy. J Trauma Acute Care Surg. 2012;73:60–6.PubMedCrossRef
41.
go back to reference Brohi K, Cohen MJ, Ganter MT, Matthay MA, Mackersie RC, Pittet J-F. Acute traumatic coagulopathy: initiated by hypoperfusion: modulated through the protein C pathway? Ann Surg. 2007;245:812–8.PubMedCentralPubMedCrossRef Brohi K, Cohen MJ, Ganter MT, Matthay MA, Mackersie RC, Pittet J-F. Acute traumatic coagulopathy: initiated by hypoperfusion: modulated through the protein C pathway? Ann Surg. 2007;245:812–8.PubMedCentralPubMedCrossRef
42.
go back to reference Brohi K, Cohen MJ, Davenport RA. Acute coagulopathy of trauma: mechanism, identification and effect. Curr Opin Crit Care. 2007;13:680–5.PubMedCrossRef Brohi K, Cohen MJ, Davenport RA. Acute coagulopathy of trauma: mechanism, identification and effect. Curr Opin Crit Care. 2007;13:680–5.PubMedCrossRef
43.
go back to reference Hess JR. Resuscitation of trauma-induced coagulopathy. Hematology Am Soc Hematol Educ Program. 2013;2013:664–7.PubMedCrossRef Hess JR. Resuscitation of trauma-induced coagulopathy. Hematology Am Soc Hematol Educ Program. 2013;2013:664–7.PubMedCrossRef
44.
go back to reference Cohen MJ. Acute traumatic coagulopathy: Clinical characterization and mechanistic investigation. Thromb Res. 2014;133(Suppl):S25–7.PubMedCrossRef Cohen MJ. Acute traumatic coagulopathy: Clinical characterization and mechanistic investigation. Thromb Res. 2014;133(Suppl):S25–7.PubMedCrossRef
45.
go back to reference Maegele M, Schöchl H, Cohen MJ. An update on the coagulopathy of trauma. Shock. 2014;41 Suppl 1:21–5.PubMedCrossRef Maegele M, Schöchl H, Cohen MJ. An update on the coagulopathy of trauma. Shock. 2014;41 Suppl 1:21–5.PubMedCrossRef
46.
go back to reference Ozment CP, Mamo LB, Campbell ML, Lokhnygina Y, Ghio AJ, Turi JL. Transfusion-related biologic effects and free hemoglobin, heme, and iron. Transfusion. 2013;53:732–40.PubMedCrossRef Ozment CP, Mamo LB, Campbell ML, Lokhnygina Y, Ghio AJ, Turi JL. Transfusion-related biologic effects and free hemoglobin, heme, and iron. Transfusion. 2013;53:732–40.PubMedCrossRef
47.
go back to reference Sambasivan CN, Kunio NR, Nair PV, Zink KA, Michalek JE, Holcomb JB, et al. High ratios of plasma and platelets to packed red blood cells do not affect mortality in nonmassively transfused patients. J Trauma. 2011;71(2 Suppl 3):S329–36.PubMedCrossRef Sambasivan CN, Kunio NR, Nair PV, Zink KA, Michalek JE, Holcomb JB, et al. High ratios of plasma and platelets to packed red blood cells do not affect mortality in nonmassively transfused patients. J Trauma. 2011;71(2 Suppl 3):S329–36.PubMedCrossRef
48.
go back to reference Tinmouth A, Fergusson D, Yee IC, Hébert PC. Clinical consequences of red cell storage in the critically ill. Transfusion. 2006;46:2014–27.PubMedCrossRef Tinmouth A, Fergusson D, Yee IC, Hébert PC. Clinical consequences of red cell storage in the critically ill. Transfusion. 2006;46:2014–27.PubMedCrossRef
Metadata
Title
Functional capacity of reconstituted blood in 1:1:1 versus 3:1:1 ratios: A thrombelastometry study
Authors
Arne Driessen
Nadine Schäfer
Ursula Bauerfeind
Sigune Kaske
Carolin Fromm-Dornieden
Ewa K Stuermer
Marc Maegele
Publication date
01-12-2015
Publisher
BioMed Central
DOI
https://doi.org/10.1186/s13049-014-0080-0

Other articles of this Issue 1/2015

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 1/2015 Go to the issue