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Related Concept Videos

Esophagus01:24

Esophagus

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The esophagus, a muscular conduit linking the pharynx and stomach, measures roughly 10 inches (25.4 cm) and sits behind the trachea. It remains collapsed when not swallowing. The esophagus follows a predominantly straight path through the thoracic mediastinum and enters the abdominal cavity through a diaphragmatic opening known as the esophageal hiatus.
The movement of edibles from the pharynx into the esophagus is facilitated by the upper esophageal sphincter, which is formed primarily by the...
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Barrett Esophagus-I: Introduction01:21

Barrett Esophagus-I: Introduction

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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...
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Detection of Black Holes01:10

Detection of Black Holes

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Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
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Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

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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...
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Data Reporting and Recording01:24

Data Reporting and Recording

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Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
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Types of Reports I: Hands-off Report01:25

Types of Reports I: Hands-off Report

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A hand-off report, also known as a change-of-shift report, is a crucial nursing process that ensures the smooth transition of patient care responsibilities between nursing staff.
Following are the key components and categories of hand-off reports:
Purpose and Process:
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Related Experiment Video

Updated: Feb 3, 2026

Author Spotlight: Advancing Biopsy Techniques with Transesophageal Ultrasound
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Black esophagus: a case report.

Mohamed Hichem Loghmari, Wafa Ben Mansour, Arwa Guediche

    La Tunisie Medicale
    |October 17, 2018
    PubMed
    Summary

    Acute esophageal necrosis, or black esophagus, is a rare condition presenting with upper gastrointestinal bleeding. Prompt treatment with proton pump inhibitors and management of comorbidities is crucial, though mortality remains high due to underlying health issues.

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    Area of Science:

    • Gastroenterology
    • Internal Medicine
    • Critical Care Medicine

    Background:

    • Acute esophageal necrosis (black esophagus) is a rare digestive complication.
    • Often presents as upper gastrointestinal hemorrhage in patients with comorbidities.

    Observation:

    • A 72-year-old patient with diabetes, hypertension, and ischemic heart disease developed hematemesis post-cholecystectomy.
    • Gastroscopy revealed circumferential esophageal necrosis and superficial duodenal ulcers.
    • Treatment included parenteral nutrition, PPIs, and supportive care.

    Findings:

    • Esophageal lesions significantly improved after six days of treatment.
    • The patient developed pneumonia and septic shock, leading to death.

    Implications:

    • Black esophagus has a multifactorial etiology and requires prompt management.
    • Proton pump inhibitors and resuscitation are key treatment components.
    • High mortality is associated with severe comorbidities.