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Related Experiment Video

Updated: Jul 8, 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

[Open submucosal dissection: first case described].

Michel Portanova1, Eduardo Vesco, Domingo Morales

  • 1Médico Asistente Servicio de Cirugía de Estómago Hospital Rebagliati.

Revista De Gastroenterologia Del Peru : Organo Oficial De La Sociedad De Gastroenterologia Del Peru
|January 10, 2008
PubMed
Summary

Endoscopic submucosal dissection (ESD) is effective for early gastric cancer and large benign polyps. This paper details the first reported case of open ESD for a large gastric hyperplastic polyp during surgery.

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Area of Science:

  • Gastroenterology
  • Surgical Oncology

Background:

  • Endoscopic submucosal dissection (ESD) is a minimally invasive technique primarily for early gastric cancer.
  • ESD is also suitable for large benign gastric lesions requiring en bloc resection.
  • The technique demands specialized skills and equipment, posing accessibility challenges.

Observation:

  • A patient presented with a large hyperplastic polyp in the upper stomach.
  • The lesion's size and characteristics necessitated a complete resection.
  • Open endoscopic submucosal dissection was performed to address the polyp.

Findings:

  • The case successfully demonstrated the feasibility of open ESD for a large gastric hyperplastic polyp.
  • This represents the first documented instance of ESD performed during open surgery for such a lesion.

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Last Updated: Jul 8, 2026

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Evaluation of the Effectiveness of Longitudinal Incision for Endoscopic Submucosal Excavation of Gastric Subepithelial Lesions
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  • The procedure achieved en bloc resection of the polyp.

    • Implications:

    • Open ESD may be a viable option for managing large gastric polyps when endoscopic access is limited or complex.
    • This technique expands the therapeutic armamentarium for gastrointestinal lesions.
    • Further research is warranted to establish the safety and efficacy of open ESD in diverse clinical scenarios.