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Related Concept Videos

Hepatic Encephalopathy01:29

Hepatic Encephalopathy

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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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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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Encephalitis l: Introduction01:19

Encephalitis l: Introduction

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

Esophageal Varices-II: Clinical Features and Management

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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...
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Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

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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...
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Challenges in diagnosing hepatic encephalopathy.

K Weissenborn1

  • 1Department of Neurology, Hannover Medical School, 30623, Hannover, Germany, weissenborn.karin@mh-hannover.de.

Neurochemical Research
|August 22, 2014
PubMed
Summary
This summary is machine-generated.

Hepatic encephalopathy (HE) is a brain dysfunction linked to liver disease. This review focuses on diagnosing HE in cirrhosis patients, considering other conditions that may affect brain function.

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Area of Science:

  • Neuroscience
  • Hepatology
  • Clinical Medicine

Background:

  • Hepatic encephalopathy (HE) is a complex neuropsychiatric syndrome.
  • It is associated with acute, chronic, and acute-on-chronic liver disease (CLD).
  • Diagnosis is challenging in patients with liver cirrhosis, portal hypertension, or portosystemic shunts.

Purpose of the Study:

  • To describe the clinical features and diagnostic approaches for HE in liver cirrhosis patients.
  • To emphasize the importance of a thorough diagnostic workup for individual cases.
  • To compare current diagnostic methods for minimal or covert HE.

Main Methods:

  • Review of clinical features of HE in liver cirrhosis.
  • Analysis of diagnostic workup strategies for HE.
  • Comparison of sensitivity and specificity of diagnostic methods for minimal/covert HE.

Main Results:

  • Concomitant disorders significantly impact brain function and HE diagnosis.
  • A detailed diagnostic workup is crucial for accurate HE assessment.
  • Current methods for diagnosing minimal/covert HE vary in sensitivity and specificity.

Conclusions:

  • Accurate HE diagnosis requires careful consideration of underlying liver disease and coexisting conditions.
  • Diagnostic strategies must be tailored to individual patient profiles.
  • Further research is needed to refine diagnostic tools for minimal and covert HE.