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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:

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Related Experiment Video

Updated: Jun 11, 2026

Evaluation of the Effectiveness of Longitudinal Incision for Endoscopic Submucosal Excavation of Gastric Subepithelial Lesions
04:08

Evaluation of the Effectiveness of Longitudinal Incision for Endoscopic Submucosal Excavation of Gastric Subepithelial Lesions

Published on: April 28, 2026

[Submucosal endoscopic dissection].

M A Tanimoto1

  • 1Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico. matanimoto@prodigy.net.mx

Revista De Gastroenterologia De Mexico
|July 10, 2010
PubMed
Summary
This summary is machine-generated.

Endoscopic submucosal dissection (ESD) is a safe endoscopic procedure for early gastrointestinal cancers. Proper training and established indications are crucial for its successful application, potentially replacing surgery.

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The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors

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Related Experiment Videos

Last Updated: Jun 11, 2026

Evaluation of the Effectiveness of Longitudinal Incision for Endoscopic Submucosal Excavation of Gastric Subepithelial Lesions
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The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
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Published on: February 13, 2026

Area of Science:

  • Gastroenterology
  • Endoscopic Surgery
  • Oncology

Context:

  • Endoscopic submucosal dissection (ESD) is an advanced endoscopic technique.
  • It expands therapeutic options for early-stage gastrointestinal cancers (T1mN0).

Purpose:

  • To review current training requirements for ESD.
  • To outline established indications for ESD.
  • To discuss available devices for ESD procedures.

Summary:

  • Indications for ESD in early GI cancer include differentiated mucosal lesions (non-ulcerated or <3cm ulcerated), poorly-differentiated mucosal lesions (<2cm non-ulcerated), and submucosal invasive lesions (<3cm, <500µm depth).
  • Submucosal elevation commonly uses saline with epinephrine and indigo. Technological advancements enhance safety.
  • Training necessitates at least 30 animal model procedures before patient intervention.

Impact:

  • ESD is a safe endoscopic alternative to surgery for selected early gastrointestinal malignancies.
  • It requires specialized training and adherence to specific indications for optimal outcomes.
  • The technique offers a less invasive therapeutic option compared to traditional surgical resections.