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Related Concept Videos

Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

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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:
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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...
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Related Experiment Video

Updated: Apr 16, 2026

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

Published on: February 13, 2026

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Endoscopic submucosal dissection.

, John T Maple, Barham K Abu Dayyeh

    Gastrointestinal Endoscopy
    |March 23, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Endoscopic submucosal dissection (ESD) offers effective treatment for early gastrointestinal cancers, achieving higher cure rates than endoscopic mucosal resection (EMR). However, ESD requires specialized training due to its technical demands and higher risk of adverse events.

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    ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection
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    ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection

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    Area of Science:

    • Gastroenterology
    • Endoscopic Surgery
    • Oncology

    Background:

    • Endoscopic submucosal dissection (ESD) is a recognized treatment for premalignant and early-stage gastrointestinal cancers.
    • ESD demonstrates superior outcomes compared to endoscopic mucosal resection (EMR), including higher en bloc resection rates and lower recurrence.
    • ESD serves as a valuable tool for T-staging, guiding further treatment decisions for noncurative resections.

    Purpose of the Study:

    • To evaluate the efficacy and challenges of Endoscopic submucosal dissection (ESD) in treating gastrointestinal lesions.
    • To compare ESD outcomes with Endoscopic mucosal resection (EMR) and surgical interventions.
    • To discuss the training requirements and adoption barriers for ESD in the United States.

    Main Methods:

    • Review of Endoscopic submucosal dissection (ESD) efficacy and safety data.
    • Comparison of oncologic outcomes between ESD, Endoscopic mucosal resection (EMR), and surgery.
    • Analysis of training models and adoption factors for ESD in Western countries.

    Main Results:

    • ESD achieves higher en bloc, R0, and curative resection rates with lower local recurrence than EMR.
    • Oncologic outcomes of ESD are favorable compared to surgical options.
    • ESD is technically demanding, with a higher adverse event rate than EMR, necessitating specialized training.

    Conclusions:

    • Endoscopic submucosal dissection (ESD) is an effective treatment for early gastrointestinal cancers, offering oncologic benefits over EMR and surgery.
    • Standardized training models are crucial for safe and effective ESD implementation, particularly for Western endoscopists.
    • Barriers such as technical difficulty, training limitations, and reimbursement issues may hinder widespread ESD adoption in the US.