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Disseminated intravascular coagulation (DIC) - Overview

Alternative Names

Consumption coagulopathy

Definition of Disseminated intravascular coagulation (DIC):

Disseminated intravascular coagulation (DIC) is a serious disorder in which the proteins that control blood clotting become abnormally active.

Causes, incidence, and risk factors:

Normally when you are injured, certain proteins in the blood become activated and travel to the injury site to help stop bleeding. However, in persons with DIC, these proteins become abnormally active. This often occurs due to inflammation, infection, or cancer.

Small blood clots form in the blood vessels. Some of these clots can clog up the vessels and cut off blood supply to various organs such as the liver, brain, or kidney. These organs will then be damaged and may stop functioning.

Over time, the clotting proteins are consumed or "used up." When this happens, the person is then at risk for serious bleeding, even from a minor injury or without injury. This process may also break up healthy red blood cells.

Risk factors for DIC include:

  • Blood transfusion reaction
  • Cancer, especially certain types of leukemia
  • Infection in the blood by bacteria or fungus
  • Liver disease
  • Pregnancy complications (such as placenta that is left behind after delivery)
  • Recent surgery or anesthesia
  • Sepsis (a serious infection)
  • Severe tissue injury (as in burns and head injury)
  • Reviewed last on: 12/28/2010
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Schafer AI. Hemorrhagic disorders: disseminated intravascular coagulation, liver failure, and vitamin K deficiency. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 181.

Liebman HA, Weitz IC. Disseminated intravascular coagulation. In: Hoffman R, Benz EJ, Shattil SS, et al., eds. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2008:chap 132.

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