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Related Concept Videos

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
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Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow

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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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Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

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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...
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Cirrhosis I: Introduction01:23

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Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
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Acute Pancreatitis I: Introduction01:25

Acute Pancreatitis I: Introduction

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Acute pancreatitis is the sudden inflammation of the pancreas caused by the early activation of digestive enzymes, leading to the autodigestion of pancreatic tissue. This results in local inflammation and, in severe cases, systemic complications.EtiologyUnderstanding the underlying causes is crucial, as identifying the etiology guides treatment and anticipates complications. Acute pancreatitis can be triggered by various factors, typically grouped into the following clinical categories.Biliary...
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Acute Pancreatitis I: Introduction01:27

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Pancreatitis is inflammation of the pancreas, an organ located behind the stomach. It can be either acute or chronic.
Acute pancreatitis is characterized by rapid inflammation of the pancreas, often caused by factors like gallstone blockage or excessive alcohol consumption. Chronic pancreatitis, on the other hand, is a slow, progressive inflammation that may result from long-term alcohol abuse, obstructions in the pancreatic duct, or genetic factors.
The causes of acute pancreatitis include:
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Related Experiment Video

Updated: Apr 30, 2026

Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
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Acute-on-chronic liver failure: a review.

Luis Eduardo Zamora Nava1, Jonathan Aguirre Valadez2, Norberto C Chávez-Tapia3

  • 1Department of Endoscopy, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Mexico City, Mexico.

Therapeutics and Clinical Risk Management
|May 3, 2014
PubMed
Summary

Acute-on-chronic liver failure (ACLF) lacks a universal definition but involves decompensation of chronic liver disease with organ failure and high mortality. Alcoholism and infection are common triggers, with inflammation playing a key role.

Keywords:
acute kidney injuryacute-on-chronic liver failurecirrhosisinfectionorgan failure

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Area of Science:

  • Hepatology
  • Internal Medicine
  • Critical Care Medicine

Background:

  • Acute-on-chronic liver failure (ACLF) is a severe clinical syndrome.
  • It is characterized by decompensation of underlying chronic liver disease.
  • High short-term mortality is a hallmark of ACLF.

Purpose of the Study:

  • To review current definitions of ACLF.
  • To discuss epidemiological and pathophysiological aspects of ACLF.
  • To summarize the latest treatment strategies for ACLF.

Main Methods:

  • Literature review of definitions from leading research groups.
  • Analysis of epidemiological data.
  • Review of pathophysiological mechanisms, including inflammation and immune alterations.
  • Synthesis of current therapeutic approaches.

Main Results:

  • No single, universally accepted definition for ACLF exists.
  • Alcoholism and infection are frequently identified as precipitating factors.
  • Inflammatory processes and altered immunity in cirrhotic patients are central to ACLF pathophysiology.

Conclusions:

  • ACLF represents a distinct clinical entity requiring precise definition.
  • Understanding its pathophysiology is crucial for effective management.
  • Further research into standardized definitions and treatments is warranted.