Related Experiment Video
Updated: Jun 14, 2026
04:56
Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)
Published on: August 4, 2023
Blood coagulation disorders in septic patients
1Division of Hematology and Hemostasis, Department of Medicine I, Medical University of Vienna, Vienna, Austria. paul.knoebl@meduniwien.ac.at
Wiener Medizinische Wochenschrift (1946)
|April 6, 2010
Summary
Host defense and blood coagulation are linked systems. Dysregulated responses can cause sepsis and organ dysfunction due to abnormal blood clotting and fibrinolysis, detailed on SepDIC.eu.
Area of Science:
- Immunology
- Hematology
- Pathophysiology
Background:
- Host defense and blood coagulation are interconnected systems vital for organism integrity.
- Normally, host responses are localized and temporary, but can become systemic and damaging.
- Sepsis and septic organ dysfunction arise from dysregulated host responses, involving coagulation and fibrinolysis abnormalities.
Purpose of the Study:
- To describe the major pathophysiologic reactions in sepsis-induced coagulopathy.
- To introduce www.SepDIC.eu, an online resource for understanding sepsis and associated coagulopathy.
Main Methods:
- Review of pathophysiologic mechanisms linking host defense and coagulation.
- Introduction of an online educational tool (www.SepDIC.eu).
Main Results:
- Systemic host responses can become overwhelming, leading to sepsis and organ dysfunction.
- Septic organ dysfunction is characterized by intravascular fibrin deposition due to coagulation activation, anticoagulant breakdown, and fibrinolysis shutdown.
- The www.SepDIC.eu tool provides information on sepsis and associated coagulopathy.
Conclusions:
- The interplay between host defense and coagulation is critical, with dysregulation leading to sepsis.
- Understanding these complex interactions is essential for managing sepsis and its complications.
- www.SepDIC.eu serves as a valuable resource for clinicians and researchers in this field.
Related Concept Videos
01:24Disorders of Hemostasis
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
01:20Extrinsic and Intrinsic Pathways of Hemostasis
Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...
01:09Coagulation
The coagulation phase is a critical part of the body's process to prevent blood loss following injury to blood vessels. It involves chemical reactions that form a clot to seal the injured area. The clotting process begins shortly after injury, within 15-20 seconds for severe damage and 1-2 minutes for minor injuries.
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
01:06Coagulation
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
01:05Introduction to Hemostasis
Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...
01:29Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...