Disseminated intravascular coagulation in sepsis

Area of Science:

• Hematology
• Pathophysiology

Background:

• Disseminated intravascular coagulation (DIC) is commonly misperceived as rare and primarily causing severe bleeding.
• Traditional beliefs about DIC, such as low fibrinogen levels and normal clotting parameters, are often inaccurate.

Purpose of the Study:

• To correct common misconceptions about the prevalence and clinical presentation of DIC.
• To explore the role of fibrinolysis in DIC and evaluate treatment strategies.

Main Methods:

• Review of existing literature and clinical observations regarding DIC.
• Analysis of the pathophysiology of fibrin formation and lysis in DIC.
• Evaluation of the efficacy and safety of heparin versus plasminogen activators in DIC treatment.

Main Results:

• Bleeding is rare in DIC; fibrinogen levels are typically elevated due to stress response.
• DIC is highly prevalent but often undiagnosed due to subtle presentation and difficulty in detecting fibrin thrombi.
• Endogenous fibrinolysis may successfully clear microclots, a process that can be enhanced by plasminogen activators, while heparin is ineffective and potentially harmful.

Conclusions:

• DIC is a common, often undiagnosed condition with infrequent severe bleeding.
• Plasminogen activators represent a promising therapeutic approach for DIC by promoting clot lysis, unlike heparin.
• Understanding the role of fibrinolysis is crucial for effective DIC management.