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Related Concept Videos

Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Endoscopic Studies II: Thoracocentesis01:26

Endoscopic Studies II: Thoracocentesis

Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
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Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Guidelines for Nursing Documentation I01:30

Guidelines for Nursing Documentation I

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Factual:  
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Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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Suctioning the Nasopharyngeal Airway

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Equipment Required

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Related Experiment Video

Updated: Jul 15, 2026

Using the Endoscope for Endobronchial Ultrasound in the Esophagus
04:35

Using the Endoscope for Endobronchial Ultrasound in the Esophagus

Published on: November 21, 2023

The transnasal esophagoscopy documentation dilemma.

Justin Garner1, John Schweinfurth, Warren May

  • 1Department of Otolaryngology and Communicative Sciences, University of Mississippi Medical Center, Jackson, Mississippi 39216, USA. jmgarner@ent.umsmed.edu

The Laryngoscope
|May 2, 2007
PubMed
Summary

Transnasal esophagoscopy (TNE) measurements differ from traditional transoral esophagoscopy (TOE) due to distinct nasal and oral tract lengths. This study quantifies these differences, aiding standardized reporting in endoscopy.

Related Experiment Videos

Last Updated: Jul 15, 2026

Using the Endoscope for Endobronchial Ultrasound in the Esophagus
04:35

Using the Endoscope for Endobronchial Ultrasound in the Esophagus

Published on: November 21, 2023

Area of Science:

  • Anatomy
  • Medical Imaging
  • Gastroenterology

Background:

  • Standardized landmark measurements in esophagoscopy are crucial for accurate documentation and communication.
  • Traditional transoral esophagoscopy (TOE) relies on upper incisor landmarks.
  • Transnasal esophagoscopy (TNE) utilizes nasal landmarks, necessitating a clear understanding of the anatomic length difference.

Purpose of the Study:

  • To radiographically determine the anatomic length difference between nasal and oral aerodigestive tracts.
  • To address gaps in standardized landmark measurements for transnasal esophagoscopy (TNE).
  • To compare TNE and TOE documentation techniques.

Main Methods:

  • Prospective radiographic cohort study utilizing digital computerized tomography (CT).
  • Measurement of nares-cricoid (NC) and upper incisor-cricoid (IC) distances in the sagittal plane.
  • Calculation of mean distances and differences for males, females, and overall populations.

Main Results:

  • Overall mean NC distance was 175.4 mm, and mean IC distance was 147.5 mm.
  • The mean NC to IC difference was 27.9 mm overall (30.5 mm for males, 25.2 mm for females).
  • Data allows conversion between incisor-based and nare-based esophagoscopy measurements.

Conclusions:

  • A significant anatomic length difference exists between nasal and oral aerodigestive tracts.
  • This difference creates a documentation dilemma for transnasal esophagoscopy (TNE).
  • The study provides data for converting esophagoscopy measurements, improving interdisciplinary communication.