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Related Concept Videos

Gastroesophageal Reflux Disease II: Clinical Features and Management01:29

Gastroesophageal Reflux Disease II: Clinical Features and Management

Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
Gastroesophageal Reflux Disease01:25

Gastroesophageal Reflux Disease

Gastroesophageal reflux disease (GERD) is the backward flow of stomach contents (acid, pepsin, or bile) into the esophagus, causing mucosal inflammation known as esophagitis. It results from failure of antireflux mechanisms, mainly the lower esophageal sphincter (LES), influenced by mechanical and physiological factors.Etiology and Risk FactorsGERD develops when LES function is weakened or when intra-abdominal pressure increases. Risk factors include aging, obesity, and sliding hiatal hernia,...
Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...
Gastroesophageal Reflux Disease I: Meaning and Pathophysiology01:29

Gastroesophageal Reflux Disease I: Meaning and Pathophysiology

Gastroesophageal Reflux Disease (GERD) involves the recurrent backflow of the stomach or duodenal contents into the esophagus, leading to troublesome symptoms and potential esophageal mucosal damage. Although GERD is often referred to as a disease, it is more accurately described as a syndrome, as it encompasses a range of symptoms and complications rather than a singular pathological entity, impacting a large number of individuals as the most prevalent upper gastrointestinal problem. Roughly...
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies01:28

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies

Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Gastritis III: Clinical Manifestations and Management01:23

Gastritis III: Clinical Manifestations and Management

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: Jun 6, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
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Lyon Consensus 2.0: what has changed for GERD diagnosis?

Fahmi Shibli1,2, Raúl Alberto Jiménez-Castillo3, Ronnie Fass3

  • 1Institute of Gastroenterology, Hepatology, and Nutrition, Emek Medical Center, Afula, Israel.

Expert Review of Gastroenterology & Hepatology
|June 5, 2026
PubMed
Summary
This summary is machine-generated.

The updated Lyon 2.0 consensus refines gastroesophageal reflux disease (GERD) diagnosis with new definitions and testing metrics. However, limitations like global access and data-driven approaches need addressing for broader GERD management.

Keywords:
Gastroesophageal reflux diseaseLyon Consensusactionable GERDesophagitispH monitoringreflux testing

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Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
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Area of Science:

  • Gastroenterology
  • Digestive Health
  • Medical Diagnostics

Background:

  • The original Lyon consensus aimed to standardize gastroesophageal reflux disease (GERD) diagnosis.
  • Gaps in reflux testing and endoscopic interpretation necessitated further refinement.
  • The Lyon 2.0 consensus builds upon the original framework to improve GERD diagnosis.

Purpose of the Study:

  • To review updates in GERD diagnosis within the Lyon 2.0 consensus compared to the original.
  • To provide expert opinion on the limitations and practical challenges of the Lyon 2.0 guidelines.
  • To highlight the need for a more globally adaptable and data-driven approach to GERD diagnosis.

Main Methods:

  • Comparative review of diagnostic criteria for GERD.
  • Analysis of updated reflux testing metrics and endoscopic findings.
  • Expert assessment of the strengths and weaknesses of the Lyon 2.0 consensus.

Main Results:

  • Lyon 2.0 establishes a modern definition of GERD, updated endoscopic findings, and standardized reflux testing metrics.
  • Guidance is provided for reflux testing both off and on therapy.
  • Identified limitations include global access disparities, expertise dependence, and regional variability.

Conclusions:

  • The Lyon 2.0 consensus represents a significant advancement in GERD diagnosis.
  • Key limitations require attention for practical implementation and global applicability.
  • Further development is needed for a more comprehensive and adaptable GERD diagnostic strategy.