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Related Concept Videos

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

Esophageal Varices-II: Clinical Features and Management

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

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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...
Esophageal Varices-I: Introduction01:24

Esophageal Varices-I: Introduction

Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...
Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...

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Related Experiment Video

Updated: Jul 13, 2026

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States
07:09

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States

Published on: April 1, 2015

Unusual bleeds, unusual clots.

S Moll1

  • 1University of North Carolina School of Medicine, Department of Medicine, Division of Hematology-Oncology, Chapel Hill, NC 27599, USA. smoll@med.unc.edu

Hamostaseologie
|August 19, 2007
PubMed
Summary

This publication details nine rare bleeding and clotting disorders, offering case studies and diagnostic insights. It highlights the complexities and fascination of clinical coagulation for medical professionals.

Area of Science:

  • Hematology
  • Clinical Medicine
  • Pathophysiology

Background:

  • Coagulation disorders present diverse clinical challenges.
  • Accurate diagnosis is crucial for effective patient management.
  • Mimicking conditions can complicate the diagnostic process.

Observation:

  • Presents nine case studies of rare bleeding and clotting disorders.
  • Includes acquired factor VIII inhibitor, acquired von Willebrand factor inhibitor, haemophilic pseudotumour, Gardner-Diamond syndrome, coumarin-induced skin necrosis, purple toe syndrome, brachiocephalic vein thrombosis, nephrogenic fibrosing dermopathy, and lymphoedema.
  • Focuses on clinical history, imaging, and diagnostic tests.

Findings:

  • Detailed case presentations illustrate unique clinical presentations.

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Venous Thrombosis Assay in a Mouse Model of Cancer

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Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States
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Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States

Published on: April 1, 2015

Venous Thrombosis Assay in a Mouse Model of Cancer
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Venous Thrombosis Assay in a Mouse Model of Cancer

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  • Diagnostic approaches for each disorder are discussed.
  • Disease pathophysiology and clinical teaching points are provided.

    • Implications:

    • Enhances understanding of uncommon coagulation abnormalities.
    • Aids clinicians in diagnosing and managing rare bleeding disorders.
    • Underscores the intricate nature of clinical hemostasis and thrombosis.