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Updated: Oct 28, 2025

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Endoscopic polypectomy devices.

Vinay Chandrasekhara1, Nikhil A Kumta2, Barham K Abu Dayyeh1

  • 1Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.

Videogie : an Official Video Journal of the American Society for Gastrointestinal Endoscopy
|July 19, 2021
PubMed
Summary
This summary is machine-generated.

This study demonstrates two endoscopic techniques for polyp removal: submucosal injection for en-bloc endoscopic mucosal resection and a detachable loop device for pedunculated polyp resection. These methods enhance procedural efficiency and safety in gastrointestinal procedures.

Keywords:
CBF, cold biopsy forcepsCSP, cold snare polypectomyDPPB, delayed postpolypectomy bleedingEMR, endoscopic mucosal resectionHBF, hot biopsy forcepsHSP, hot snare polypectomyRCT, randomized controlled trialUSMSTF, United States Multi-Society Task Force

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Area of Science:

  • Gastroenterology
  • Endoscopic Surgery
  • Gastrointestinal Oncology

Background:

  • Gastrointestinal polyp removal is crucial for preventing colorectal cancer.
  • Traditional polypectomy techniques can be challenging for certain polyp types.
  • Minimally invasive endoscopic techniques are continuously evolving.

Purpose of the Study:

  • To illustrate submucosal injection as an adjunct for en-bloc endoscopic mucosal resection (EMR).
  • To showcase the use of a detachable loop device for hot snare resection of pedunculated polyps.
  • To provide visual guidance on advanced endoscopic resection techniques.

Main Methods:

  • Video 1 details submucosal injection using saline or other agents prior to en-bloc EMR.
  • Video 2 demonstrates the application of a detachable loop ligating device before hot snare resection of pedunculated polyps.
  • Both videos highlight key steps and technical considerations.

Main Results:

  • Submucosal injection facilitates a cleaner resection plane for en-bloc EMR.
  • The detachable loop device enables secure ligation and efficient removal of pedunculated polyps.
  • These techniques appear to improve the ease and potentially the completeness of polyp resection.

Conclusions:

  • Submucosal injection is a valuable tool for en-bloc EMR, improving specimen retrieval.
  • Detachable loop ligation is an effective method for managing pedunculated polyps during endoscopic resection.
  • These endoscopic techniques offer practical solutions for challenging polyp removal scenarios.