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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.
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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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.
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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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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:
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Related Experiment Video

Updated: Mar 23, 2026

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection
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Novel NOTES Techniques and Experimental Devices for Endoscopic Full-thickness Resection (EFTR).

Hirohito Mori1, Hideki Kobara2, Tsutomu Masaki2

  • 1Department of Gastroenterology and Neurology, Kagawa University, Kita, Kagawa, Japan; Department of Gastroenterological Surgery, Ehime Rosai Hospital, Niihama, Ehime, Japan.

Gastrointestinal Endoscopy Clinics of North America
|April 3, 2016
PubMed
Summary
This summary is machine-generated.

Natural orifice transluminal endoscopic surgery (NOTES) offers scarless procedures. Endoscopic full-thickness resection (EFTR) advances this by enabling radical tumor removal within the gastrointestinal tract wall.

Keywords:
Exposed EFTRFeasible surgical procedureNatural orifice transluminal endoscopic surgeryNonexposed EFTRUltraminimally invasive

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Area of Science:

  • Minimally Invasive Surgery
  • Gastrointestinal Endoscopy
  • Surgical Oncology

Background:

  • Natural orifice transluminal endoscopic surgery (NOTES) is a minimally invasive approach avoiding external surgical wounds.
  • Endoscopic submucosal dissection (ESD) is an established endoscopic resection technique.
  • Radical resection of gastrointestinal tumors traditionally requires more invasive laparoscopic surgery.

Purpose of the Study:

  • To introduce endoscopic full-thickness resection (EFTR) as an ultraminimally invasive surgical option.
  • To highlight EFTR's potential for radical tumor resection in the gastrointestinal tract.
  • To discuss the feasibility of nonexposed EFTR with advancements in instrumentation.

Main Methods:

  • Utilizes flexible endoscopes for gastrointestinal tumor resection.
  • Involves full-thickness excision of the gastrointestinal tract wall.
  • Explores the use of novel full-thickness suture instruments.

Main Results:

  • Endoscopic full-thickness resection (EFTR) allows for radical resection of gastrointestinal tumors.
  • EFTR represents an extension and advancement beyond endoscopic submucosal dissection (ESD).
  • The development of specialized equipment may enable nonexposed EFTR.

Conclusions:

  • Endoscopic full-thickness resection (EFTR) is a promising ultraminimally invasive surgical technique.
  • EFTR offers a scarless approach for radical gastrointestinal tumor removal.
  • Further equipment development could establish nonexposed EFTR as a feasible surgical procedure.