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Related Concept Videos

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.
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is...
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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...
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Hepatic Encephalopathy01:29

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DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic...
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Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
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Related Experiment Video

Updated: Apr 23, 2026

Transarterial Administration of Oncolytic Viruses for Locoregional Therapy of Orthotopic HCC in Rats
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Hepatic vascular tumors.

Belinda Hsi Dickie1, Steven J Fishman2, Richard G Azizkhan1

  • 1Division of General Pediatric and Thoracic Surgery, Hemangioma and Vascular Malformation Center Cincinnati Children׳s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio.

Seminars in Pediatric Surgery
|September 22, 2014
PubMed
Summary
This summary is machine-generated.

Infantile hepatic hemangiomas are common pediatric liver tumors. This review outlines their subtypes, diagnostic workup, and updated management strategies, including propranolol treatment.

Keywords:
HemangiomaHypothyroidismLiverPropranolol

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Area of Science:

  • Pediatric Hepatology
  • Vascular Tumor Research
  • Pediatric Oncology

Background:

  • Infantile hepatic hemangioma is the most frequent hepatic vascular tumor in children.
  • Lesions present across a spectrum, categorized into focal, multifocal, and diffuse subtypes.
  • Management has evolved with the introduction of beta-blocker therapy.

Purpose of the Study:

  • To review current knowledge on infantile hepatic hemangiomas.
  • To present an algorithm for workup, treatment, and follow-up based on lesion categorization.
  • To discuss the impact of beta-blockers on hepatic hemangioma management.

Main Methods:

  • Literature review of infantile hepatic hemangiomas.
  • Analysis of current diagnostic and treatment protocols.
  • Inclusion of recent advancements in beta-blocker therapy.

Main Results:

  • Hepatic hemangiomas are classified into focal, multifocal, and diffuse subtypes.
  • A structured approach to workup, treatment, and follow-up is proposed.
  • Propranolol has emerged as a significant therapeutic option.

Conclusions:

  • Categorization aids in tailored management of hepatic hemangiomas.
  • Updated protocols incorporate beta-blocker therapy for improved outcomes.
  • Further research may refine treatment strategies for these pediatric liver tumors.