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Related Concept Videos

Esophageal Achalasia01:27

Esophageal Achalasia

Esophageal achalasia is a chronic neurogenic disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent or ineffective peristalsis in the distal esophagus. This leads to a functional obstruction without a physical blockage, despite significant disruption of esophageal motility.EtiologyAchalasia is caused by degeneration of the myenteric (Auerbach's) plexus, specifically the loss of inhibitory ganglion cells that produce vasoactive intestinal peptide (VIP)...
Gastrointestinal Motility Disorders01:20

Gastrointestinal Motility Disorders

Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
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...
Other Disorders of Digestive System01:30

Other Disorders of Digestive System

The gastrointestinal tract is susceptible to various disorders. If the lower esophageal sphincter is damaged, stomach acid can flow back into the esophagus, causing irritation and inflammation of the lining. This condition is called gastroesophageal reflux disease (known as heartburn) and may cause chest pain and difficulty swallowing. In the stomach, prolonged use of nonsteroidal anti-inflammatory drugs like aspirin, chronic alcohol consumption, bacterial infections such as Helicobacter...
Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists01:28

Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists

Prokinetic agents are specialized medications that stimulate gastrointestinal (GI) motility, promoting food movement through the GI tract. Dopamine, an inhibitory neurotransmitter, plays a significant role in this process, reducing GI motility and indirectly controlling the speed of digestion. Dopamine receptor antagonists, such as metoclopramide and domperidone, offer a unique advantage as prokinetic agents. By blocking the dopamine receptors, these drugs increase GI motility, improving food...
Esophageal Strictures-II: Clinical Features and Management01:26

Esophageal Strictures-II: Clinical Features and Management

Patients with esophageal strictures often experience a range of symptoms. Initially, they may have difficulty swallowing solid foods, which can progress to include liquids. Additional symptoms may involve chest pain or discomfort, regurgitating food and fluids, heartburn, unintentional weight loss, coughing or choking during meals, and hoarseness.
Healthcare providers should gather a comprehensive medical history and conduct a physical examination for diagnosis. If esophageal stricture is...

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Related Experiment Video

Updated: Jul 19, 2026

Robotic Myotomy and Partial Fundoplication for Achalasia
11:19

Robotic Myotomy and Partial Fundoplication for Achalasia

Published on: August 11, 2023

Esophageal motor disorders.

Chandra Prakash1, Ray E Clouse

  • 1Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.

Current Opinion in Gastroenterology
|October 13, 2006
PubMed
Summary

Esophageal manometry is the gold standard for diagnosing esophageal motor disorders like achalasia. Research continues to refine measurements and consider sensory dysfunction alongside motor issues.

Area of Science:

  • Gastroenterology
  • Esophageal Physiology

Background:

  • Esophageal manometry is the gold standard for diagnosing esophageal motor disorders.
  • Achalasia diagnosis and management are areas of active interest, particularly concerning minimally invasive surgery.
  • The relationship between esophageal motor dysfunction, symptoms, and sensory dysfunction requires further investigation.

Purpose of the Study:

  • To highlight ongoing advancements in esophageal pressure measurement and interpretation.
  • To discuss the current role of esophageal manometry in achalasia and antireflux surgery.
  • To emphasize the importance of considering sensory dysfunction in esophageal motor disorders.

Main Methods:

  • Review of current techniques in esophageal pressure measurement and display.
  • Analysis of the diagnostic utility of esophageal manometry in specific conditions.

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Robotic Heller Myotomy for Advancements in Surgical Management of Achalasia
09:46

Robotic Heller Myotomy for Advancements in Surgical Management of Achalasia

Published on: February 16, 2024

Related Experiment Videos

Last Updated: Jul 19, 2026

Robotic Myotomy and Partial Fundoplication for Achalasia
11:19

Robotic Myotomy and Partial Fundoplication for Achalasia

Published on: August 11, 2023

Robotic Heller Myotomy for Advancements in Surgical Management of Achalasia
09:46

Robotic Heller Myotomy for Advancements in Surgical Management of Achalasia

Published on: February 16, 2024

  • Discussion of the interplay between motor, sensory, and symptomatic aspects of esophageal function.

    • Main Results:

    • Esophageal manometry remains the definitive diagnostic tool for esophageal motor disorders.
    • Interest in achalasia is driven by advances in minimally invasive surgical approaches.
    • Preoperative motility assessments for antireflux surgery have limitations in predicting outcomes.
    • The disconnect between motor dysfunction and symptoms suggests a role for sensory dysfunction.

    Conclusions:

    • Continued refinements in esophageal manometry enhance diagnostic capabilities.
    • Achalasia management is evolving with surgical innovations.
    • A comprehensive understanding of esophageal disorders necessitates considering both motor and sensory components.