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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.
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...
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...
Hyperosmolar Hyperglycemic State01:21

Hyperosmolar Hyperglycemic State

Hyperosmolar Hyperglycemic State, or HHS, is a serious and life-threatening complication of type 2 diabetes mellitus. It is characterized by three main features: severe hyperglycemia, profound dehydration, and elevated serum osmolality, all occurring without significant ketoacidosis.HHS typically develops in older adults or individuals with limited access to fluids. This may result from illness, cognitive impairment, or medications such as diuretics or corticosteroids. These factors reduce...
Disorders of Erythrocytes01:27

Disorders of Erythrocytes

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...
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...

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Related Experiment Video

Updated: Jun 10, 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

Redefining thalassemia as a hypercoagulable state.

M Domenica Cappellini1, Irene Motta, Khaled M Musallam

  • 1Universitá di Milano, Policlinico Foundation IRCCS, Milan, Italy. maria.cappellini@unimi.it

Annals of the New York Academy of Sciences
|August 18, 2010
PubMed
Summary
This summary is machine-generated.

Beta-thalassemia patients face increased risks of blood clots due to a hypercoagulable state. This review explores the mechanisms behind this condition and discusses prophylaxis strategies for thalassemia.

Related Experiment Videos

Last Updated: Jun 10, 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

Area of Science:

  • Hematology
  • Vascular Biology
  • Thrombosis Research

Background:

  • Improved life expectancy in beta-thalassemia patients reveals new complications.
  • Thalassemia intermedia patients exhibit a high incidence of thromboembolic events.
  • A hypercoagulable state has been identified in thalassemia.

Purpose of the Study:

  • To review the molecular and cellular mechanisms of hypercoagulability in thalassemia.
  • To summarize current clinical experiences with thrombosis in thalassemia.
  • To discuss recommendations for thrombosis prophylaxis.

Main Methods:

  • Literature review of molecular and cellular mechanisms.
  • Synthesis of clinical data on thromboembolic events.
  • Analysis of existing thrombosis prophylaxis guidelines.

Main Results:

  • Thalassemia is associated with a hypercoagulable state.
  • Specific molecular and cellular pathways contribute to increased clotting risk.
  • Clinical data highlight the prevalence of thromboembolic events, particularly in thalassemia intermedia.

Conclusions:

  • Understanding the mechanisms of hypercoagulability is crucial for managing thalassemia complications.
  • Prophylaxis strategies are essential to mitigate thrombosis risk.
  • Further research is needed to optimize prevention and treatment.