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Related Concept Videos

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...
Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
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

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 the...
Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...

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Related Experiment Video

Updated: May 23, 2026

A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy
10:30

A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy

Published on: May 16, 2015

Hepatic encephalopathy.

D Patel1, M J W McPhail, J F L Cobbold

  • 1Department of Medicine, Hepatology and Gastroenterology Section, Imperial College London, St Mary's Hospital Campus, London.

British Journal of Hospital Medicine (London, England : 2005)
|April 17, 2012
PubMed
Summary
This summary is machine-generated.

Hepatic encephalopathy, a severe complication of liver disease, presents as neuropsychiatric issues impacting daily life. Early recognition and management of this condition are crucial for patient well-being and safety.

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Area of Science:

  • Hepatology
  • Neurology
  • Gastroenterology

Background:

  • Hepatic encephalopathy (HE) is a critical complication of acute and chronic liver disease.
  • It results from liver dysfunction, cirrhosis, or portal-systemic shunting, causing neuropsychiatric abnormalities.
  • HE manifests in overt and minimal forms, with minimal HE often requiring psychometric testing for diagnosis.

Purpose of the Study:

  • To highlight the increasing prevalence and burden of hepatic encephalopathy.
  • To emphasize the importance of recognizing and managing HE in decompensating cirrhosis.
  • To underscore the societal impact of HE on patient quality of life and safety.

Main Methods:

  • This study is a review of existing literature and clinical observations.
  • It synthesizes information on the pathophysiology, diagnosis, and impact of hepatic encephalopathy.
  • No new clinical trials or experimental data were generated for this review.

Main Results:

  • The prevalence of liver disease, including cirrhosis, is rising due to viral hepatitis, alcohol, and fatty liver disease.
  • Hepatic encephalopathy significantly impairs cognitive, behavioral, and psychomotor functions.
  • Patients with HE face risks such as impaired driving ability, increasing vulnerability to accidents.

Conclusions:

  • Recognizing and managing hepatic encephalopathy is essential due to its increasing prevalence and severe consequences.
  • Effective management can improve patient survival, quality of life, and daily functioning.
  • Addressing HE is vital for reducing its substantial societal burden and preventing accidents.