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Related Concept Videos

Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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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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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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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.
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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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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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...
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Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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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.
During an EGD, the endoscope can be used to:
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Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
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Related Experiment Video

Updated: May 6, 2026

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
03:43

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Colonoscopy audit over 10 years--what can be learnt?

Alan G Fraser, Greg D Gamble, Toby R Rose

    The New Zealand Medical Journal
    |October 25, 2013
    PubMed
    Summary

    Regular colonoscopy audits with nurse data collection and feedback significantly improved key performance indicators, including polyp detection rates, over a decade. This demonstrates the value of routine audits for enhancing colonoscopy quality.

    Area of Science:

    • Gastroenterology
    • Endoscopy
    • Quality Improvement

    Background:

    • Colonoscopy goals evolve, necessitating regular assessment of endoscopist performance against key performance indicators (KPIs).
    • Continuous monitoring is crucial for maintaining and improving the quality of colonoscopy procedures.

    Purpose of the Study:

    • To evaluate the impact of a routine, long-term colonoscopy audit program on key performance indicators.
    • To assess the effectiveness of nurse-led data collection and feedback in improving endoscopist performance.

    Main Methods:

    • A 10-year audit of colonoscopies was conducted, with nursing staff independently recording data on KPIs.
    • Key performance indicators included time to caecum, withdrawal time, adjusted caecal intubation rate, and polyp detection rate.

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  • Regular meetings discussed results, providing feedback to endoscopists.

    • Main Results:

    • All key performance indicators significantly improved over the 10-year audit period (p<0.0001).
    • Polyp detection rate increased from 29% to 49%, and the proportion of procedures with >2 polyps rose from 22% to 33%.
    • Significant correlations were found between withdrawal time and polyp detection rate, and patient discomfort decreased over time.

    Conclusions:

    • Routine colonoscopy audits, supported by nurse data collection and consistent feedback, can effectively enhance key performance indicators.
    • Audit processes should be integrated as a standard practice in endoscopy units, not limited to research purposes.