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Related Experiment Video

Updated: May 20, 2026

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

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

Published on: February 13, 2026

What are the latest developments in colorectal endoscopic submucosal dissection?

Toshio Uraoka1, Yutaka Saito, Naohisa Yahagi

  • 1Toshio Uraoka, Naohisa Yahagi, Division of Research and Development for Minimally Invasive Treatment, Cancer Center, School of Medicine, Keio University, Tokyo 160-8582, Japan.

World Journal of Gastrointestinal Endoscopy
|July 21, 2012
PubMed
Summary

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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...

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Endoscopic submucosal dissection (ESD) for early colorectal tumors allows en bloc resection. However, colorectal ESD is challenging, requiring technical advancements and training for wider adoption.

Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Endoscopy

Background:

  • Endoscopic submucosal dissection (ESD) is a minimally invasive technique for resecting early-stage gastrointestinal tumors.
  • Originally developed for gastric ESD, its application has expanded to the colorectum.
  • Colorectal ESD presents unique technical challenges and a higher risk of perforation compared to gastric ESD.

Purpose of the Study:

  • To review recent advancements in colorectal endoscopic submucosal dissection.
  • To highlight the technical difficulties and current status of colorectal ESD.
  • To emphasize the need for improved techniques and training systems.

Main Methods:

  • Review of recent developments and literature on colorectal ESD.
  • Analysis of technical challenges and risks associated with the procedure.
Keywords:
ColonoscopyColorectumComplicationEndoscopic submucosal dissectionPerforationTraining

Related Experiment Videos

Last Updated: May 20, 2026

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

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

Published on: February 13, 2026

  • Discussion of training requirements for widespread clinical use.

    • Main Results:

    • Colorectal ESD, while enabling en bloc resection of large early tumors, is technically demanding.
    • The procedure carries a higher risk of perforation than gastric ESD.
    • Adoption of colorectal ESD is limited in Western countries due to these challenges.

    Conclusions:

    • Further technical innovations are crucial for the successful implementation of colorectal ESD.
    • Development of effective clinical training systems is essential for broader application.
    • Addressing the technical difficulties and safety concerns will facilitate the wider use of colorectal ESD.