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Related Concept Videos

Hypoxia01:23

Hypoxia

Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Acute Respiratory Failure-II01:21

Acute Respiratory Failure-II

Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
Hepatic Encephalopathy01:29

Hepatic Encephalopathy

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 shunting—including...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...

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Related Experiment Video

Updated: May 27, 2026

Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model
10:40

Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model

Published on: August 4, 2012

Hypoxic hepatitis.

Jean Henrion1

  • 1Service d'Hépato-Gastroentérologie, Hôpital de Jolimont, Haine-Saint-Paul, Belgium. jeanhenrion@yahoo.fr

Liver International : Official Journal of the International Association for the Study of the Liver
|November 22, 2011
PubMed
Summary
This summary is machine-generated.

Hypoxic hepatitis (HH), an acute liver injury, involves liver cell damage from low oxygen. Contrary to past beliefs, it is not solely caused by liver ischemia or shock, impacting prognosis and treatment.

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Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model
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Area of Science:

  • Hepatology
  • Critical Care Medicine
  • Pathophysiology

Background:

  • Hypoxic hepatitis (HH), also known as ischemic hepatitis or shock liver, is a common acute liver injury in intensive care units.
  • It presents as a rapid increase in serum aminotransferase levels due to liver cell necrosis.
  • While traditionally linked to liver ischemia and shock, its underlying mechanisms are more complex.

Purpose of the Study:

  • To clarify the hemodynamic mechanisms contributing to hypoxic hepatitis.
  • To challenge the traditional understanding of HH as solely caused by liver ischemia or shock.
  • To highlight the importance of other factors in HH development and management.

Main Methods:

  • Review of existing literature on hypoxic hepatitis.
  • Analysis of hemodynamic factors involved in HH pathogenesis.
  • Comparison of traditional and current understanding of HH mechanisms.

Main Results:

  • Cardiac failure, respiratory failure, and toxic-septic shock are primary causes in over 90% of cases.
  • Mechanisms beyond liver ischemia, including passive liver congestion, arterial hypoxemia, and dysoxia, play significant roles.
  • Shock is present in only 50% of HH cases, indicating 'ischemic hepatitis' and 'shock liver' are misnomers.

Conclusions:

  • Hypoxic hepatitis involves multiple hemodynamic mechanisms, not just liver ischemia or shock.
  • Accurate understanding of HH pathophysiology is crucial for effective treatment, which targets the underlying condition.
  • HH carries a poor prognosis, with high mortality rates in hospitalized patients.