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Related Experiment Video

Updated: Jun 25, 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

Endoscopic submucosal dissection for colorectal epithelial neoplasm.

Ping-Hong Zhou1, Li-Qing Yao, Xin-Yu Qin

  • 1Institute of Endsocopy, Zhongshan Hospital, Fudan University, Shanghai, China. zhou1968@yahoo.cn

Surgical Endoscopy
|March 6, 2009
PubMed
Summary

Endoscopic submucosal dissection (ESD) is effective for removing large colorectal epithelial neoplasms. This minimally invasive procedure achieved a high en bloc resection rate with manageable complications, offering precise histologic information.

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Area of Science:

  • Gastroenterology
  • Endoscopic Surgery
  • Oncology

Background:

  • Endoscopic submucosal dissection (ESD) is a technique initially developed for early gastric cancer.
  • It was designed to improve en bloc resection rates for larger lesions (>20 mm).
  • Its application in colorectal settings is evaluated here.

Purpose of the Study:

  • To assess the efficacy and safety of ESD for colorectal epithelial neoplasms.
  • To determine the en bloc resection rate and procedure time.
  • To investigate complication incidence.

Main Methods:

  • ESD was performed on patients with colorectal epithelial neoplasms >20 mm from July 2006 to December 2007.
  • Key metrics included en bloc resection rate, procedure duration, and complication rates.

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

Published on: April 28, 2026

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Last Updated: Jun 25, 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

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

Published on: April 28, 2026

  • Follow-up assessments confirmed lesion healing and absence of recurrence.

    • Main Results:

    • 74 colorectal neoplasms (mean diameter 32.6 mm) were resected.
    • An en bloc resection rate of 93.2% was achieved.
    • The perforation rate was 8.1% (6/74), with most managed conservatively; bleeding occurred in 1.4%.

    Conclusions:

    • ESD is an effective treatment for colorectal epithelial neoplasms.
    • It enables complete, one-piece lesion removal.
    • The procedure provides crucial histologic data for patient management.