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Related Concept Videos

Disorders of Hemostasis01:24

Disorders of Hemostasis

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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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Introduction to Hemostasis01:05

Introduction to Hemostasis

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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,...
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Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
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Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic and Intrinsic Pathways of Hemostasis

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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...
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Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

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Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
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Disorders of Erythrocytes01:27

Disorders of Erythrocytes

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Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
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Related Experiment Video

Updated: Jun 5, 2025

In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time
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[Abnormal uterine bleeding and hemostasis disorders].

Alessandro Casini1, Dehlia Moussaoui2, Victoria L Crofts3

  • 1Service d'angiologie et d'hémostase, Hôpitaux universitaires de Genève et Faculté de médecine, 1211 Genève 14.

Revue Medicale Suisse
|December 6, 2024
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Summary
This summary is machine-generated.

Abnormal uterine bleeding (AUB) in young individuals is often linked to under-recognized inherited bleeding disorders. Early diagnosis and multidisciplinary management are key for effective treatment and improved quality of life.

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Area of Science:

  • Gynecology
  • Hematology
  • Pediatrics

Context:

  • Abnormal uterine bleeding (AUB) is a prevalent issue in adolescents and young adults.
  • It frequently stems from undiagnosed inherited bleeding disorders, including von Willebrand disease and platelet function disorders.
  • Under-recognition of these conditions leads to delayed diagnosis and suboptimal patient care.

Purpose:

  • To explore the epidemiology of AUB in individuals with inherited bleeding disorders.
  • To outline a diagnostic approach for identifying underlying hemostatic abnormalities.
  • To emphasize the importance of multidisciplinary management strategies.

Summary:

  • Inherited bleeding disorders are an under-recognized cause of AUB in young patients.
  • Effective management requires tailored hormonal and hemostatic treatments.
  • A collaborative approach involving gynecologists, pediatricians, and hemostasis specialists is essential.

Impact:

  • Optimizing the diagnosis and management of AUB in this population.
  • Improving patient outcomes and quality of life.
  • Raising awareness among healthcare providers about the link between AUB and inherited bleeding disorders.