Related Experiment Video
Updated: Jun 2, 2026
06:28
E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
Published on: August 1, 2019
A public-health perspective on screening colonoscopy
Richard M Hoffman1, David Espey, Robert L Rhyne
1Medicine Service, New Mexico VA Health Care System, 1501 San Pedro Drive SE, Mailstop 111, Albuquerque, NM 87108, USA. rhoffman@unm.edu.
Expert Review of Anticancer Therapy
|April 21, 2011
Summary
Colorectal cancer screening saves lives, but low uptake requires more accessible options. While colonoscopy is effective, public health strategies should include diverse screening methods to improve participation and resource use.
Area of Science:
- Public Health
- Gastroenterology
- Oncology
Background:
- Colorectal cancer (CRC) is a significant global health concern.
- Screening programs demonstrably reduce CRC incidence and mortality.
- Current screening rates remain suboptimal despite strong guideline recommendations.
Purpose of the Study:
- To evaluate the role of colonoscopy as the primary colorectal cancer screening strategy.
- To identify challenges and limitations associated with widespread colonoscopy screening.
- To advocate for a multi-modal approach to enhance CRC screening uptake and efficiency.
Main Methods:
- Review of randomized trial data on CRC screening efficacy.
- Analysis of colonoscopy's diagnostic and therapeutic capabilities.
- Assessment of public health implications, including accuracy, safety, cost, and patient preference.
Main Results:
- Colonoscopy offers diagnostic and preventive benefits but lacks direct randomized trial support for screening efficacy.
- Limitations include imperfect accuracy, variable quality, potential complications, high costs, and limited capacity.
- Patient preference for alternative screening methods is a significant factor.
Conclusions:
- Over-reliance on colonoscopy for CRC screening presents public health challenges.
- A comprehensive strategy must incorporate multiple screening modalities.
- Optimizing endoscopic resource allocation is crucial for successful screening programs.
Related Concept Videos
01:25Endoscopic 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:
01:26Imaging 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...
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...
01:30Preventive Healthcare Services
Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
01:26Endoscopic 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...
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...
01:30Serum Laboratory Studies, Stool Test, Breath Test
Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
01:25Assessment of the Rectum and Anus
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,...
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...