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Related Concept Videos

Esophageal Varices-I: Introduction01:24

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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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In Vitro Drug Release Testing: Overview, Development and Validation01:10

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In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
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Esophageal Perforation-I: Introduction01:22

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Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
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Esophageal Strictures-I: Introduction01:30

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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...
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Gastric Motility01:16

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Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
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Esophageal Strictures-II: Clinical Features and Management01:26

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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.
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Related Experiment Video

Updated: Jan 29, 2026

Development of Compendium for Esophageal Squamous Cell Carcinoma
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New Developments in Esophageal Motility Testing.

Rena Yadlapati1, Glenn T Furuta2, Paul Menard-Katcher3

  • 1University of Colorado Reflux & Esophageal Diseases Center, Division of Gastroenterology & Hepatology, Department of Medicine, University of Colorado, Anschutz Medical Campus, Academic Office 1 Room 7605, 12631 E. 17th Ave, Aurora, CO, 80045, USA. Rena.yadlapati@ucdenver.edu.

Current Treatment Options in Gastroenterology
|February 4, 2019
PubMed
Summary
This summary is machine-generated.

Advanced esophageal motility testing offers new ways to diagnose and manage esophageal disorders. High-resolution manometry and novel techniques provide precise characterization of esophageal function.

Keywords:
Barium esophagramEGJ obstructionEsophageal manometryEsophageal physiologyFLIPMucosal impedancepH monitoring

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Area of Science:

  • Gastroenterology
  • Esophageal Physiology
  • Diagnostic Technology

Background:

  • Esophageal motility disorders are common and impact quality of life.
  • Accurate diagnosis is crucial for effective management.
  • Traditional testing methods have limitations.

Purpose of the Study:

  • To review recent advancements in esophageal motility testing.
  • To summarize the current understanding of esophageal motility disorders.
  • To highlight the expanded diagnostic capabilities.

Main Methods:

  • High-resolution esophageal pressure topography (Chicago Classification).
  • Novel manometric applications (provocative testing, impedance manometry).
  • Endoluminal functional lumen imaging probe.
  • Barium esophagram and timed swallow.
  • Multichannel intraluminal impedance-pH monitoring.

Main Results:

  • High-resolution manometry is the gold standard.
  • Novel techniques assess EGJ obstruction, peristaltic reserve, and functional disorders.
  • Impedance manometry correlates pressure with bolus flow.
  • Functional lumen imaging provides complementary data.
  • Impedance-pH monitoring assesses reflux clearance and integrity.

Conclusions:

  • The diagnostic tools for esophageal motility disorders have significantly expanded.
  • Technological advancements allow for precise characterization of esophageal function.
  • Phenotype-driven management is facilitated by improved diagnostics.