ICU · Resuscitation
Disseminated intravascular coagulation (DIC)
Also known as DIC · Consumptive coagulopathy · ISTH DIC score
DIC in the resuscitation setting — the 2025 ISTH definition and overt-DIC score, SIC for sepsis, thrombotic vs haemorrhagic phenotypes, cytokine-driven pathophysiology, transfusion for bleeding (BCSH/ISTH), heparin when thrombosis predominates, antifibrinolytics only for hyperfibrinolytic bleeding (CRASH-2 in trauma), the failed anticoagulant trials, APL and purpura fulminans, and the TTP differential.
Checked against its sources on 8 Oct 2026
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- Treatment of the underlying condition is the cornerstone of DIC therapy
- Transfuse platelets or plasma for bleeding (or before an invasive procedure), not on laboratory results alone
- In general no antifibrinolytics in DIC — the exception is severe bleeding with a hyperfibrinolytic state (leukaemia, trauma)
- In bleeding trauma, tranexamic acid works only early — given after 3 h it seemed to increase death due to bleeding (CRASH-2)
- Suspected TTP needs prompt plasma exchange — ADAMTS13 results may take days
Meet the patient
A 60-year-old man with perforated diverticulitis reaches the unit in septic shock — purpura across his shins, blood oozing from cannula sites, a platelet count that has fallen from 288 to 42 overnight, fibrinogen 0.9 g/L and a D-dimer far above the upper normal limit. He is bleeding from puncture sites while his kidneys fail — the two faces of DIC at once.[1]
The two questions that decide his next hour: what is the underlying condition? (treating it is the cornerstone) and is this thrombotic or haemorrhagic DIC? (it decides between heparin and products).[3][1]
References21ShowHide
- [1]Iba T, Levy JH, Maier CL, et al. Updated definition and scoring of disseminated intravascular coagulation in 2025: communication from the ISTH SSC Subcommittee on Disseminated Intravascular Coagulation. Journal of thrombosis and haemostasis : JTH, 2025.PMID 40216223
- [2]Bakhtiari K, Meijers JC, de Jonge E, et al. Prospective validation of the International Society of Thrombosis and Haemostasis scoring system for disseminated intravascular coagulation. Critical care medicine, 2004.PMID 15599145
- [3]Wada H, Thachil J, Di Nisio M, et al. Guidance for diagnosis and treatment of DIC from harmonization of the recommendations from three guidelines. Journal of thrombosis and haemostasis : JTH, 2013.PMID 23379279
- [4]Levi M, Toh CH, Thachil J, et al. Guidelines for the diagnosis and management of disseminated intravascular coagulation. British Committee for Standards in Haematology. British journal of haematology, 2009.PMID 19222477
- [5]Adelborg K, Larsen JB, Hvas AM Disseminated intravascular coagulation: epidemiology, biomarkers, and management. British journal of haematology, 2021.PMID 33555051
- [6]Levy JH, Welsby I, Goodnough LT Fibrinogen as a therapeutic target for bleeding: a review of critical levels and replacement therapy. Transfusion, 2014.PMID 24117955
- [7]Rubin RN, Colman RW Disseminated intravascular coagulation. Approach to treatment. Drugs, 1992.PMID 1282866
- [8]Warren BL, Eid A, Singer P, et al. Caring for the critically ill patient. High-dose antithrombin III in severe sepsis: a randomized controlled trial. JAMA, 2001.PMID 11597289
- [9]Abraham E, Reinhart K, Opal S, et al. Efficacy and safety of tifacogin (recombinant tissue factor pathway inhibitor) in severe sepsis: a randomized controlled trial. JAMA, 2003.PMID 12851279
- [10]Ranieri VM, Thompson BT, Barie PS, et al. Drotrecogin alfa (activated) in adults with septic shock. The New England journal of medicine, 2012.PMID 22616830
- [11]Vincent JL, Francois B, Zabolotskikh I, et al. Effect of a Recombinant Human Soluble Thrombomodulin on Mortality in Patients With Sepsis-Associated Coagulopathy: The SCARLET Randomized Clinical Trial. JAMA, 2019.PMID 31104069
- [12]Sanz MA, Fenaux P, Tallman MS, et al. Management of acute promyelocytic leukemia: updated recommendations from an expert panel of the European LeukemiaNet. Blood, 2019.PMID 30803991
- [13]Smith OP, White B, Vaughan D, et al. Use of protein-C concentrate, heparin, and haemodiafiltration in meningococcus-induced purpura fulminans. Lancet (London, England), 1997.PMID 9393338
- [14]Rintala E, Kauppila M, Seppälä OP, et al. Protein C substitution in sepsis-associated purpura fulminans. Critical care medicine, 2000.PMID 10921567
- [15]Iba T, Nisio MD, Levy JH, et al. New criteria for sepsis-induced coagulopathy (SIC) following the revised sepsis definition: a retrospective analysis of a nationwide survey. BMJ open, 2017.PMID 28963294
- [16]Nwagha TU, Hajjaj OI, Levy JH, et al. Global practice and challenges in the diagnosis and management of disseminated intravascular coagulation: communication from the ISTH SSC Subcommittee on Disseminated Intravascular Coagulation. Journal of thrombosis and haemostasis : JTH, 2026.PMID 41655787
- [17]CRASH-2 trial collaborators, Shakur H, Roberts I, et al. Effects of tranexamic acid on death, vascular occlusive events, and blood transfusion in trauma patients with significant haemorrhage (CRASH-2): a randomised, placebo-controlled trial. Lancet (London, England), 2010.PMID 20554319
- [18]CRASH-2 collaborators, Roberts I, Shakur H, et al. The importance of early treatment with tranexamic acid in bleeding trauma patients: an exploratory analysis of the CRASH-2 randomised controlled trial. Lancet (London, England), 2011.PMID 21439633
- [19]Chiasakul T, Cuker A Clinical and laboratory diagnosis of TTP: an integrated approach. Hematology. American Society of Hematology. Education Program, 2018.PMID 30504354
- [20]Gando S, Levi M, Toh CH Disseminated intravascular coagulation. Nature reviews. Disease primers, 2016.PMID 27250996
- [21]Sun Y, Sun H, Feng J, et al. IMMUNOSUPPRESSION CORRELATES WITH THE DETERIORATION OF SEPSIS-INDUCED DISSEMINATED INTRAVASCULAR COAGULATION. Shock (Augusta, Ga.), 2024.PMID 36735379