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Hepatic Portal System01:21

Hepatic Portal System

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The hepatic portal system, a critical part of our circulatory framework, transports nutrient-laden, deoxygenated blood from the gastrointestinal tract and spleen to the liver. This ingenious system plays an indispensable role in maintaining our body's metabolic equilibrium.
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Anastomoses01:19

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In human anatomy, anastomosis refers to a connection or opening between two things, particularly between blood vessels or other tubular structures. The term is derived from the Greek term 'anastomosis,' which means 'outlet' or 'opening.' This natural network of connections plays a critical role in the survival and functionality of the human body.
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Overview of Systemic Arteries01:11

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Arteries of the Upper Limbs01:12

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The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
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Blood Supply to the Digestive System01:16

Blood Supply to the Digestive System

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Splanchnic circulation refers to the network of blood vessels that supply and drain blood from the abdominal organs involved in digestion, including the stomach, liver, pancreas, intestines, and spleen. This circulation delivers essential nutrients and oxygen while removing waste products from these organs.
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Updated: May 17, 2025

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
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Understanding Portosystemic Collateral Anatomy.

Aaron McBride1, Alex Wallace1, Indravadan Patel1

  • 1Division of Interventional Radiology, Department of Radiology, Mayo Clinic Arizona, Phoenix, Arizona.

Seminars in Interventional Radiology
|May 16, 2025
PubMed
Summary
This summary is machine-generated.

Portosystemic shunts in liver disease patients cause serious issues like bleeding. Understanding their anatomy and using advanced endovascular treatments improves patient outcomes.

Keywords:
anatomycollateralinterventional radiologyportal veinportosystemic

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Area of Science:

  • Interventional Radiology
  • Hepatology
  • Vascular Medicine

Background:

  • Portosystemic collateral pathways are common in cirrhosis and portal vein thrombosis.
  • These shunts can cause severe complications such as gastrointestinal bleeding, hepatic encephalopathy, and liver failure.

Purpose of the Study:

  • To review clinical presentations of portosystemic shunts.
  • To explore anatomical variants and altered hemodynamics.
  • To discuss current endovascular treatment strategies for optimizing patient outcomes.

Main Methods:

  • Review of clinical presentations.
  • Analysis of anatomical variations and hemodynamic alterations.
  • Discussion of endovascular treatment modalities.

Main Results:

  • Portosystemic shunts present with diverse clinical scenarios.
  • Understanding anatomy and hemodynamics is key for management.
  • Endovascular techniques offer viable treatment options.

Conclusions:

  • Effective management of portosystemic shunts requires a comprehensive understanding of their pathophysiology.
  • Interventional radiology plays a vital role in treating these complex vascular abnormalities.
  • Optimizing endovascular strategies can significantly improve patient prognosis and reduce complications.