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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,...
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...
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...
Esophageal Strictures-I: Introduction01:30

Esophageal Strictures-I: Introduction

Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
Barrett Esophagus-I: Introduction01:21

Barrett Esophagus-I: Introduction

Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more similar...

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Related Experiment Video

Updated: Jun 12, 2026

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
08:25

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

Nonerosive Reflux Disease (NERD) - An Update.

Tiberiu Hershcovici1, Ronnie Fass

  • 1The Neuroenteric Clinical Research Group, Section of Gastroenterology, Southern Arizona VA Health Care System, Tucson, Arizona, USA.

Journal of Neurogastroenterology and Motility
|June 11, 2010
PubMed
Summary

Nonerosive reflux disease (NERD) is a common gastroesophageal reflux disease (GERD) presentation, often resistant to proton pump inhibitor (PPI) treatment. Advances focus on understanding NERD

Keywords:
Gastroesophageal reflux diseaseNonerosive reflux diseaseProton pump inhibitor

More Related Videos

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
06:46

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring

Published on: December 14, 2020

Related Experiment Videos

Last Updated: Jun 12, 2026

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
08:25

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
06:46

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring

Published on: December 14, 2020

Area of Science:

  • Gastroenterology
  • Digestive Health
  • Esophageal Disorders

Background:

  • Nonerosive reflux disease (NERD) is a distinct and prevalent form of gastroesophageal reflux disease (GERD).
  • NERD represents the majority of GERD cases and a significant portion of patients refractory to proton pump inhibitor (PPI) therapy.
  • Understanding NERD's pathophysiology and natural history is crucial for effective management.

Purpose of the Study:

  • To review recent advancements in understanding nonerosive reflux disease (NERD).
  • To highlight the role of esophageal impedance + pH monitoring in diagnosing NERD.
  • To discuss evolving therapeutic strategies beyond acid suppression for NERD.

Main Methods:

  • Review of recent scientific literature on nonerosive reflux disease (NERD).
  • Analysis of diagnostic advancements, including esophageal impedance + pH monitoring.
  • Evaluation of current and emerging therapeutic approaches for NERD.

Main Results:

  • Nonerosive reflux disease (NERD) remains a significant clinical challenge, particularly in PPI-refractory patients.
  • Esophageal impedance + pH monitoring aids in identifying various reflux etiologies contributing to NERD.
  • Current treatments primarily focus on acid suppression, but alternative strategies are gaining traction.

Conclusions:

  • Nonerosive reflux disease (NERD) requires continued research into its pathophysiology and natural history.
  • Multidimensional impedance and pH monitoring are valuable tools for NERD assessment.
  • A broader range of therapeutic options should be considered for managing NERD effectively.