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Related Concept Videos

Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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: Jul 12, 2026

Improved Hysteroscopic Resection of Endometrial Polyps Using 6-Fr Micro-Scissors and Forceps
03:01

Improved Hysteroscopic Resection of Endometrial Polyps Using 6-Fr Micro-Scissors and Forceps

Published on: August 2, 2024

Cold and Hot Snaring for Colorectal Polyps.

Ingo Steinbrück1

  • 1Department of Medicine and Gastroenterology, Evangelisches Diakoniekrankenhaus Freiburg, Academic Teaching Hospital, University of Freiburg, Freiburg, Germany.

Visceral Medicine
|July 11, 2026
PubMed
Summary

Cold snare resection is recommended for small polyps and sessile-serrated lesions due to safety and effectiveness. Hot snare is preferred for larger polyps, while endoscopic submucosal dissection is best for potentially malignant polyps.

Keywords:
Cold snareEndoscopic mucosal resectionHot snarePolypectomy

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A Genetically Engineered Mouse Model of Sporadic Colorectal Cancer
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A Genetically Engineered Mouse Model of Sporadic Colorectal Cancer

Published on: July 6, 2017

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Last Updated: Jul 12, 2026

Improved Hysteroscopic Resection of Endometrial Polyps Using 6-Fr Micro-Scissors and Forceps
03:01

Improved Hysteroscopic Resection of Endometrial Polyps Using 6-Fr Micro-Scissors and Forceps

Published on: August 2, 2024

A Genetically Engineered Mouse Model of Sporadic Colorectal Cancer
06:01

A Genetically Engineered Mouse Model of Sporadic Colorectal Cancer

Published on: July 6, 2017

Area of Science:

  • Gastroenterology
  • Endoscopic Surgery
  • Colorectal Cancer Prevention

Background:

  • Colorectal polyp resection techniques have evolved significantly.
  • Current methods include various endoscopic mucosal resection (EMR) variations, endoscopic submucosal dissection (ESD), and full-thickness resection.
  • Safety and effectiveness are key considerations for all techniques.

Purpose of the Study:

  • To review the evidence-based roles of different colorectal polyp resection techniques.
  • To discuss adjunctive measures like margin coagulation and clip closure.
  • To provide guidance on selecting the optimal technique based on polyp characteristics.

Main Methods:

  • Review of current evidence on colorectal polyp resection techniques.
  • Analysis of safety (perforation, bleeding) and effectiveness (adenoma recurrence) endpoints.
  • Discussion of specific techniques: cold snare, hot snare, underwater EMR (U-EMR), ESD.

Main Results:

  • Cold snare resection is optimal for small polyps (≤9 mm) and sessile-serrated lesions.
  • Hot snare resection is more effective for larger polyps (≥20 mm), especially with margin coagulation.
  • ESD is the preferred method for potentially malignant polyps; U-EMR is an option for medium-sized polyps (20-40 mm).

Conclusions:

  • Technique selection for colorectal polyp resection depends on polyp size, type, and malignant potential.
  • Cold snare for small lesions and hot snare for larger ones offer favorable safety and effectiveness.
  • ESD provides en bloc resection for malignant lesions, while ongoing studies explore cold snare with margin coagulation for large adenomas.