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Related Concept Videos

Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic 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...
Coagulation01:09

Coagulation

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...
Coagulation01:06

Coagulation

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...
Introduction to Hemostasis01:05

Introduction 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...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic 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...
Disorders of Hemostasis01:24

Disorders 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.

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Related Experiment Video

Updated: May 9, 2026

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)
04:56

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)

Published on: August 4, 2023

Trauma-induced coagulopathy.

A Godier1, S Susen

  • 1Service d'anesthésie-réanimation chirurgicale, université Paris-Descartes, hôpital Cochin, Assistance Publique-Hôpitaux de Paris, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France. annegodier@yahoo.fr

Annales Francaises D'Anesthesie Et De Reanimation
|August 7, 2013
PubMed
Summary
This summary is machine-generated.

Trauma patients with hemorrhage-induced coagulopathy need faster treatment. Early diagnosis and aggressive hemostatic resuscitation, including blood products and coagulation factors, improve outcomes within the critical golden hour.

Keywords:
CoagulopathieCoagulopathyHemorrhageHémorragieTrauma

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Microfluidics in Assessing Platelet Function
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Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
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Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock

Published on: June 6, 2011

Related Experiment Videos

Last Updated: May 9, 2026

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)
04:56

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)

Published on: August 4, 2023

Microfluidics in Assessing Platelet Function
06:47

Microfluidics in Assessing Platelet Function

Published on: November 8, 2024

Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
16:31

Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock

Published on: June 6, 2011

Area of Science:

  • Trauma and Emergency Medicine
  • Hematology
  • Critical Care

Background:

  • Hemorrhage is a primary cause of mortality in trauma patients.
  • Trauma-induced coagulopathy is a specific condition linked to poor outcomes.
  • Recent advancements have shifted treatment towards earlier, aggressive hemostatic resuscitation.

Purpose of the Study:

  • To highlight the challenges in early identification of coagulopathic trauma patients.
  • To emphasize the importance of timely hemostatic resuscitation.
  • To discuss the role of point-of-care diagnostics in managing trauma-induced coagulopathy.

Main Methods:

  • Review of current therapeutic approaches for trauma-induced coagulopathy.
  • Discussion of massive transfusion protocols and their components.
  • Exploration of diagnostic challenges and emerging technologies.

Main Results:

  • Hemostatic resuscitation involves high ratios of blood products, antifibrinolytics, and coagulation factors.
  • Early identification of coagulopathy remains a significant clinical challenge.
  • Point-of-care devices are increasingly vital for diagnosis and monitoring.

Conclusions:

  • Aggressive hemostatic resuscitation is crucial for trauma patients with coagulopathy.
  • Focus must be on early diagnosis to ensure timely intervention within the golden hour.
  • Optimizing patient screening and pre-established protocols are key to effective management.