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Related Concept Videos

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...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

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

Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

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...
Portal Hypertension01:22

Portal Hypertension

Portal hypertension is an increase in blood pressure within the portal venous system. Normally, this pressure is less than 5 mmHg. It is considered clinically significant when it rises above 10 mmHg. At this threshold, complications from altered blood flow and venous congestion emerge.EtiologyPortal hypertension arises from conditions that impede blood flow through the liver. The most common cause is cirrhosis, in which chronic liver injury leads to fibrotic scarring. This fibrosis narrows or...
Overview of Systemic Veins01:11

Overview of Systemic Veins

Systemic veins are crucial blood vessels that return deoxygenated blood from various body tissues back to the heart. There are three systemic veins that return deoxygenated blood to the heart, they are as follows.
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the middle...
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,...

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Related Experiment Video

Updated: Jun 16, 2026

New Thrombectomy Technique for Total Portal Vein Thrombosis in Liver Transplantation
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Published on: June 27, 2025

Portal vein thrombosis.

Sameer Parikh1, Riddhi Shah, Prashant Kapoor

  • 1Department of Medicine, Baylor College of Medicine, Houston, TX, USA.

The American Journal of Medicine
|January 28, 2010
PubMed
Summary

Portal vein thrombosis (PVT) management requires careful consideration of prothrombotic risks and clinical presentation. This review offers a rational approach to diagnosing and treating PVT for internists.

Area of Science:

  • Gastroenterology
  • Vascular Medicine
  • Diagnostic Imaging

Background:

  • Portal vein thrombosis (PVT) is a common clinical condition arising from local and systemic prothrombotic factors.
  • PVT presentation ranges from asymptomatic to severe intestinal ischemia, with chronic cases leading to portal hypertension complications.
  • Current clinical decision-making is hampered by a lack of controlled trials for both acute and chronic PVT.

Purpose of the Study:

  • To synthesize current knowledge on portal vein thrombosis.
  • To provide a rational management approach for internists.
  • To address diagnostic and therapeutic challenges in PVT.

Main Methods:

  • Review of existing literature on portal vein thrombosis.
  • Synthesis of dissenting views on PVT management.

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  • Focus on diagnostic imaging and therapeutic strategies.

    • Main Results:

    • Abdominal ultrasound with color Doppler is the preferred diagnostic imaging modality for PVT, boasting a 98% negative predictive value.
    • Oral anticoagulation is considered for low-bleeding-risk patients, but long-term use is cautioned in hepatic cirrhosis.
    • Evolving roles for invasive therapies like thrombolysis and transjugular intrahepatic portosystemic shunt (TIPS) are noted.

    Conclusions:

    • A structured approach integrating diagnostic findings and risk factors is crucial for managing PVT.
    • Careful patient selection is necessary for initiating oral anticoagulation.
    • Further research is needed to guide evidence-based therapeutic decisions in PVT.