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Related Concept Videos

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...
Venous Thrombosis IV: Nursing Management01:30

Venous Thrombosis IV: Nursing Management

Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
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...

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Related Experiment Video

Updated: Jun 20, 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

[Coagulation management in multiple trauma].

C Waydhas1, K Görlinger

  • 1Klinik für Unfallchirurgie, Universitätsklinikum Essen, Hufelandstr. 55, 45147 Essen. christian.waydhas@uk-essen.de

Der Unfallchirurg
|September 18, 2009
PubMed
Summary
This summary is machine-generated.

Coagulopathy in trauma patients significantly increases mortality. Early detection and management of microvascular bleeding with targeted factor and platelet substitution, alongside surgical control, improve outcomes.

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Related Experiment Videos

Last Updated: Jun 20, 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

Integrated Compensatory Responses in a Human Model of Hemorrhage
07:57

Integrated Compensatory Responses in a Human Model of Hemorrhage

Published on: November 20, 2016

Area of Science:

  • Emergency Medicine
  • Trauma Surgery
  • Hematology

Background:

  • Polytraumatized patients frequently present with coagulopathy, increasing mortality risk by fourfold.
  • Microvascular bleeding is a key clinical indicator requiring prompt assessment.
  • Standard coagulation tests and thrombelastometry are essential for diagnosis.

Purpose of the Study:

  • To outline optimal management strategies for coagulopathy in polytraumatized patients.
  • To emphasize the importance of timely intervention and specific product substitution.
  • To highlight the role of algorithms in improving patient outcomes.

Main Methods:

  • Surgical control of bleeding and correction of physiological derangements (hypothermia, acidosis, hypocalcemia) are prerequisites for factor substitution.
  • Measurement of fibrinogen, prothrombin time (PT), activated partial thromboplastin time (aPTT), and platelet counts guide therapy.
  • Algorithms for transfusion and coagulation management are utilized.

Main Results:

  • Fibrinogen substitution corrects early factor deficiencies, improves coagulation tests, and may reduce mortality.
  • Fresh frozen plasma administration guidelines are provided, though survival benefits require further study.
  • Platelet concentrate administration is guided by bleeding severity and injury type.

Conclusions:

  • Optimized transfusion and coagulation management algorithms improve therapeutic efficacy and patient outcomes.
  • Correction of hyperfibrinolysis is crucial for the effectiveness of substituted coagulation products.
  • Factor VIIa serves as a rescue therapy for persistent bleeding after optimizing preconditions.