Multi-factorial Mechanism Behind COVID-19 Related Thrombosis

Elshazali Widaa Ali1,2, Ibrahim Khedir Ibrahim2

  • 1Department of Medical Laboratory Sciences, College of Applied Medical Science, University of Bisha, Bisha, Saudi Arabia.

Insights

COVID-19 patients face a high risk of thrombosis due to multifactorial causes. Key factors include inflammation, endothelial damage, and antiphospholipid antibodies, contributing to severe outcomes like pulmonary embolism.

Area of Science:

  • Medical Science
  • Virology
  • Hematology

Background:

  • Thrombosis is a significant complication of COVID-19, affecting approximately one-third of patients.
  • Pulmonary embolism is the most common thrombotic event observed in COVID-19 cases.

Purpose of the Study:

  • To review published data on COVID-19 related thrombosis.
  • To summarize predisposing factors and mechanisms of thrombosis in COVID-19.

Main Methods:

  • Systematic review of existing literature on COVID-19 and thrombosis.
  • Analysis of predisposing factors and etiological mechanisms.

Main Results:

  • COVID-19 thrombosis is multifactorial, involving inflammation, hyperviscosity, and endothelial damage.
  • SARS-CoV-2 infection can induce antiphospholipid antibodies, increasing hypercoagulability.
  • Thrombophilic mutations (e.g., Factor V Leiden) may contribute to thrombosis and disease severity, though research is conflicting.

Conclusions:

  • The multifactorial nature of COVID-19 thrombosis involves endothelial damage, antiphospholipid antibodies, inflammation, hyperviscosity, and thrombophilic mutations.
  • These factors collectively predispose COVID-19 patients to thrombotic events.
Abstract

Related Concept Videos

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...
949
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...
9.5K
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...
49
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.
1.3K
Psychoneuroimmunology: Cardiovascular Disease01:27

Psychoneuroimmunology: Cardiovascular Disease

Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
85