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Related Concept Videos

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...
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...
Esophageal Varices-I: Introduction01:24

Esophageal Varices-I: Introduction

Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...
Cirrhosis I: Introduction01:23

Cirrhosis I: Introduction

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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Portal Hypertension01:22

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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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Related Experiment Video

Updated: Jul 14, 2026

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
07:10

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy

Published on: June 18, 2020

Does autonomic dysfunction in cirrhosis liver influence variceal bleed?

S Joye Varghese1, N Balan, B Naveen

  • 1Medical Gastroenterology, Stanley Medical College Hospital, Chennai, India. joyvargese@gmail.com

Annals of Hepatology
|May 24, 2007
PubMed
Summary

Autonomic dysfunction, characterized by abnormal heart rate and blood pressure responses, may predispose individuals with liver cirrhosis to variceal bleeding. This study investigated autonomic function in cirrhotic patients with variceal bleeds.

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Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
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Last Updated: Jul 14, 2026

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
07:10

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy

Published on: June 18, 2020

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
09:37

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats

Published on: August 1, 2018

Area of Science:

  • Hepatology
  • Cardiology
  • Gastroenterology

Background:

  • Autonomic dysfunction is recognized in liver cirrhosis patients.
  • The specific impact of autonomic dysfunction on variceal bleeding in cirrhosis remains unclear.

Purpose of the Study:

  • To assess autonomic function in patients with cirrhosis and a history of variceal bleeding.
  • To determine if autonomic dysfunction is a risk factor for variceal bleeding in cirrhosis.

Main Methods:

  • Fifty non-diabetic cirrhotic patients (34 with variceal bleeds), aged over 15, were evaluated.
  • Tests included parasympathetic (Valsalva ratio, deep breathing) and sympathetic (postural blood pressure, hand grip) function.
  • True autonomic dysfunction was defined as abnormal parasympathetic and sympathetic function.

Main Results:

  • Twenty percent (10/50) of patients exhibited 'true' autonomic dysfunction, all of whom had variceal bleeds.
  • Parasympathetic dysfunction was observed in 38% and sympathetic dysfunction in 20% of patients.
  • Abnormal Valsalva ratio (E:I ratio) and increased diastolic blood pressure during hand grip were significantly associated with variceal bleeding.

Conclusions:

  • 'True' autonomic dysfunction appears to be a potential predisposing factor for variceal bleeding in liver cirrhosis.
  • Further research is warranted to elucidate the mechanisms linking autonomic dysfunction and variceal hemorrhage.