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Related Concept Videos

Esophageal Varices-I: Introduction01:24

Esophageal Varices-I: Introduction

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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...
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Peptic Ulcer Disease I: Introduction01:30

Peptic Ulcer Disease I: Introduction

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Peptic Ulcer Disease (PUD) is characterized by mucosal excavation in the esophagus, stomach, pylorus, or duodenum. It can manifest as acute or chronic based on the extent and duration of mucosal involvement.
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
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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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Peptic Ulcer Disease IV: Management01:26

Peptic Ulcer Disease IV: Management

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Medical treatment strategies for peptic ulcers encompass various methods. The primary goal of treatment is to diminish gastric acidity and strengthen mucosal defense mechanisms.
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...
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Pathophysiology of Peptic Ulcer Disease: Injurious Factors01:22

Pathophysiology of Peptic Ulcer Disease: Injurious Factors

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Peptic ulcers are sores on the stomach's inner lining and the upper small intestine, which are the result of disruptions in the mucosal layer that houses parietal cells which produce gastric acid, and chief cells which secrete pepsinogen.
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
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Gastritis III: Clinical Manifestations and Management01:23

Gastritis III: Clinical Manifestations and Management

92
The clinical manifestations of gastritis can vary depending on the cause and type of gastritis, but some common symptoms may include the following.
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
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Related Experiment Video

Updated: May 9, 2025

Author Spotlight: Point-of-Care Ultrasound for Gastric Content Assessment and Risk Stratification in Perioperative Care
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Author Spotlight: Point-of-Care Ultrasound for Gastric Content Assessment and Risk Stratification in Perioperative Care

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Risk Factors for Patient-Important Upper Gastrointestinal Bleeding.

Adam M Deane1, François Lauzier2, Neill K J Adhikari3

  • 1Department of Critical Care, Melbourne Medical School, University of Melbourne, Melbourne, Victoria, Australia.

American Journal of Respiratory and Critical Care Medicine
|May 2, 2025
PubMed
Summary

Risk factors for patient-important upper gastrointestinal bleeding in invasively ventilated adults include higher illness severity, vasopressors, and platelet inhibitors. Pantoprazole and enteral nutrition significantly reduced bleeding risk.

Keywords:
critical illnessgastrointestinal bleedingriskstress ulcer prophylaxis

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Area of Science:

  • Critical Care Medicine
  • Gastroenterology
  • Pharmacology

Background:

  • Patient-important gastrointestinal bleeding is a critical outcome for invasively ventilated patients.
  • Risk factors for this specific bleeding event remain largely unknown.
  • Understanding these factors is crucial for developing targeted prevention strategies.

Purpose of the Study:

  • To identify and analyze risk factors associated with patient-important upper gastrointestinal bleeding in adults requiring invasive ventilation.
  • To provide data for improving patient safety and clinical decision-making in intensive care units.

Main Methods:

  • A pre-planned regression analysis was conducted on an international trial database.
  • Evaluated both baseline and time-varying risk factors within the preceding 3 days.
  • Accounted for illness severity (APACHE II score) and the competing risk of mortality.

Main Results:

  • Patient-important upper gastrointestinal bleeding occurred in 2.7% of 4,821 patients.
  • Increased risk was linked to higher APACHE II scores, vasopressor use, severe thrombocytopenia, and platelet inhibitors.
  • Pantoprazole use (HR 0.36) and enteral nutrition (HR 0.81 per 500 mL/day) were associated with significantly lower bleeding risk.

Conclusions:

  • Several factors significantly influence the risk of patient-important upper gastrointestinal bleeding during invasive ventilation.
  • Pantoprazole demonstrated a protective effect independent of enteral nutrition volume.
  • Enteral nutrition also showed a protective association with bleeding risk.