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Related Concept Videos

Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

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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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Pulmonary Embolism I: Introduction01:19

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A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...
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Pulmonary Embolism I: Introduction01:29

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Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
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Venous Thrombosis III: Interprofessional Care01:29

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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...
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Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

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The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
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Disorders of Hemostasis01:24

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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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Updated: May 2, 2026

Leveraging Turbidity and Thromboelastography for Complementary Clot Characterization
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Travelers' thrombosis.

Raymond V Johnston1, Martin F Hudson1,

  • 1Aerospace Medical Association, 320 S. Henry St., Alexandria, VA 22314, USA.

Aviation, Space, and Environmental Medicine
|March 7, 2014
PubMed
Summary
This summary is machine-generated.

Air travel does not uniquely cause venous thromboembolism (VTE). Prolonged immobility during any travel lasting over 4 hours can increase thrombosis risk. Awareness and risk assessment are key for prevention.

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Area of Science:

  • Medical Science
  • Public Health

Background:

  • Venous thromboembolism (VTE) association with air travel debated for decades.
  • Distinguishing evidence from anecdote in "media hype" is crucial.

Purpose of the Study:

  • To clarify the relationship between travel and thrombosis.
  • To establish appropriate terminology and preventive strategies.

Main Methods:

  • Literature review and evidence-based analysis.
  • Separation of anecdotal claims from scientific data.

Main Results:

  • "Travelers' thrombosis" is a more fitting term, encompassing all travel with prolonged immobility (>4 hours).
  • No specific air travel cabin factor uniquely affects coagulation cascade.
  • Immobility during any travel is the primary risk factor.

Conclusions:

  • Thrombosis risk is linked to immobility, not exclusively air travel.
  • Adequate risk assessment and prophylactic measures are essential for all travelers.
  • Increased awareness of travel-related thrombosis is necessary.