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Related Concept Videos

Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

390
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:
390
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
205

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Related Experiment Video

Updated: Oct 1, 2025

Robotic D3 Partial Duodenal Resection with Primary Side-to-Side Anastomosis
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Advanced Endoscopic Resection Techniques: Endoscopic Submucosal Dissection and Endoscopic Full-Thickness Resection.

Phillip S Ge1, Hiroyuki Aihara2

  • 1Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1466, Houston, TX, 77030-4009, USA.

Digestive Diseases and Sciences
|March 5, 2022
PubMed
Summary

Endoscopic resection, including endoscopic submucosal dissection and endoscopic full-thickness resection, is a key therapy for gastrointestinal neoplasms. Advanced techniques enable en bloc resection of large and deep lesions with clear margins.

Keywords:
Endoscopic full-thickness resectionEndoscopic mucosal resectionEndoscopic resectionEndoscopic submucosal dissectionEndoscopic submucosal resectionSubmucosal tunneling endoscopic resection

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Area of Science:

  • Gastroenterology
  • Endoscopic Surgery

Background:

  • Endoscopic resection is the primary treatment for superficial gastrointestinal neoplasms.
  • It is also used for selected small deep lesions in the upper and lower GI tract.
  • Traditional methods include endoscopic snare polypectomy and endoscopic mucosal resection.

Purpose of the Study:

  • To review the current state of advanced endoscopic resection techniques.
  • To highlight innovations in therapeutic endoscopy for complex lesions.

Main Methods:

  • Review of current literature on advanced endoscopic resection.
  • Discussion of endoscopic submucosal dissection (ESD) and endoscopic full-thickness resection (EFTR).

Main Results:

  • Advanced endoscopic techniques allow en bloc resection of large superficial lesions.
  • Selected subepithelial lesions can be resected with negative margins.
  • ESD and EFTR represent the state of the art in complex endoscopic resections.

Conclusions:

  • Advanced endoscopic resection techniques are evolving rapidly.
  • These methods offer effective treatment options for a wider range of gastrointestinal lesions.
  • Endoscopic submucosal dissection and endoscopic full-thickness resection are crucial innovations.