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Related Concept Videos

Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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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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.
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Related Experiment Video

Updated: May 22, 2026

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
04:09

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Published on: February 13, 2026

Effective training system in colorectal endoscopic submucosal dissection.

Ken Ohata1, Takafumi Ito, Hideyuki Chiba

  • 1Department of Gastroenterology, NTT Medical Center Tokyo, Tokyo, Japan. ken.ohata1974@gmail.com

Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society
|April 27, 2012
PubMed
Summary

Colorectal endoscopic submucosal dissection (ESD) is challenging but effective. A new training system for colorectal ESD aims to standardize the procedure and improve trainee outcomes, facilitating wider adoption.

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Last Updated: May 22, 2026

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Published on: July 11, 2025

Area of Science:

  • Gastroenterology
  • Endoscopic Surgery

Background:

  • Colorectal endoscopic submucosal dissection (ESD) offers superior en bloc resection rates compared to endoscopic mucosal resection (EMR).
  • Technical difficulties due to colorectal wall anatomy and histology hinder widespread adoption of colorectal ESD.

Purpose of the Study:

  • To describe a novel training system for colorectal endoscopic submucosal dissection (ESD).
  • To assess the validity and effectiveness of this training system by analyzing trainee clinical outcomes and learning curves.

Main Methods:

  • Development and implementation of a structured training program for colorectal ESD.
  • Evaluation of trainee performance through clinical outcomes and analysis of the learning curve.

Main Results:

  • The described training system is effective in teaching colorectal ESD.
  • Trainee learning curves indicate a manageable progression in skill acquisition.

Conclusions:

  • The established training system for colorectal ESD is valid and can facilitate the wider spread of this advanced endoscopic procedure.