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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:
Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
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...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...

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Related Experiment Video

Updated: Jul 12, 2026

Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice
08:20

Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice

Published on: July 12, 2018

Preoperative colonic stenting: how, when and why?

James J Farrell1

  • 1Department of Digestive Diseases, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. jfarrell@mednet.ucla.edu

Current Opinion in Gastroenterology
|September 1, 2007
PubMed
Summary

Preoperative colonic stenting offers a safe and effective alternative for managing acute malignant colonic obstruction, potentially avoiding emergency surgery and reducing patient risk.

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The C-seal: A Biofragmentable Drain Protecting the Stapled Colorectal Anastomosis from Leakage
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The C-seal: A Biofragmentable Drain Protecting the Stapled Colorectal Anastomosis from Leakage

Published on: November 4, 2010

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Published on: July 12, 2018

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07:51

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Published on: November 4, 2010

Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Interventional Radiology

Background:

  • Acute colonic obstruction from malignancy frequently presents as a surgical emergency.
  • Traditional surgical decompression (colostomy, resection) carries significant morbidity and mortality.
  • Preoperative colonic stenting can decompress the obstruction, enabling elective surgery.

Purpose of the Study:

  • To review advancements in colonic stent technology.
  • To evaluate indications for preoperative colonic stenting.
  • To assess the evidence supporting preoperative stenting for malignant colonic obstruction.

Main Methods:

  • Review of recent developments in colonic stent technology.
  • Analysis of current indications for preoperative stenting.
  • Evaluation of existing evidence, including cost-effectiveness and pooled analyses.

Main Results:

  • Preoperative colonic stenting is effective for decompression.
  • Stenting may facilitate elective surgical intervention.
  • Pooled analyses and cost-effectiveness studies support the efficacy and safety of stenting, despite a lack of randomized trials.

Conclusions:

  • Colonic stenting is a viable option for preoperative management of malignant colonic obstruction.
  • It offers a potentially safer alternative to immediate surgical decompression.
  • Further evaluation of stent technology and clinical evidence is ongoing.