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Related Concept Videos

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...
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:
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: Jun 4, 2026

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
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Published on: March 24, 2023

Laparoscopy for colon and rectal cancer.

Govind Nandakumar1, James W Fleshman

  • 1Section of Colon and Rectal Surgery, Washington University School of Medicine, St. Louis, Missouri.

Clinics in Colon and Rectal Surgery
|February 3, 2011
PubMed
Summary

Minimally invasive laparoscopic surgery offers short-term benefits for colon cancer patients without compromising long-term oncologic outcomes. Further research is needed to establish laparoscopy

Keywords:
Colon cancerlaparoscopyrectal cancer

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Area of Science:

  • Colorectal Surgery
  • Surgical Oncology
  • Minimally Invasive Procedures

Background:

  • Laparoscopic surgery is increasingly utilized for colorectal disease treatment.
  • Laparoscopic-assisted approaches for colon cancer demonstrate short-term patient benefits and maintain oncologic outcomes.
  • Hand-assisted laparoscopic surgery may reduce operative times while retaining laparoscopic advantages.

Purpose of the Study:

  • To review the current applications and outcomes of minimally invasive surgical techniques in colon and rectal cancer treatment.
  • To evaluate the emerging role of robotic proctectomy and transanal endoscopic microsurgery (TEM).
  • To highlight the importance of surgeon training and credentialing for these advanced procedures.

Main Methods:

  • Review of existing literature on laparoscopic, robotic, and transanal endoscopic microsurgery for colorectal cancer.
  • Analysis of short-term and long-term oncologic outcomes associated with these techniques.
  • Discussion of potential benefits and limitations of each minimally invasive approach.

Main Results:

  • Laparoscopic surgery provides short-term benefits for colon cancer patients, with oncologic outcomes comparable to open surgery.
  • Robotic proctectomy shows promise in overcoming laparoscopic limitations in pelvic surgery, potentially preserving function.
  • Transanal endoscopic microsurgery (TEM) is safe for T1 rectal cancers but has higher recurrence rates for invasive cancer.

Conclusions:

  • Minimally invasive techniques, including laparoscopy and robotics, are valuable tools in colorectal cancer surgery.
  • Further multicenter trials are necessary to fully define the role of laparoscopy in rectal cancer treatment.
  • Development of endoluminal techniques and comprehensive surgeon training are crucial for advancing minimally invasive colorectal cancer care.