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Colorectal cancer screening

J M Ferrante1

  • 1Department of Family Medicine, University of South Florida College of Medicine, Tampa, USA.

The Medical Clinics of North America
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

Mass colorectal cancer screening for average-risk, asymptomatic individuals is not recommended due to costs and false positives. Further research is needed to identify high-risk groups for targeted screening strategies.

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Area of Science:

  • Gastroenterology
  • Preventive Medicine
  • Oncology

Background:

  • Colorectal cancer screening recommendations for asymptomatic, average-risk individuals vary among major health organizations.
  • Some organizations advocate annual Hemoccult tests and flexible sigmoidoscopy, while others do not recommend screening for this population.

Purpose of the Study:

  • To evaluate the current evidence and complexities surrounding mass colorectal cancer screening in asymptomatic, average-risk patients.
  • To determine the appropriateness of recommending widespread screening protocols at this time.

Main Methods:

  • Review of existing guidelines and studies on colorectal cancer screening efficacy and implementation.
  • Analysis of the benefits, risks, costs, and logistical challenges associated with mass screening programs.

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Main Results:

  • One study indicated a small mortality benefit (3 per 1000) from annual rehydrated Hemoccult testing.
  • Mass screening requires significant investment in costs, training, technology, and compliance.
  • High false-positive rates of Hemoccult tests lead to unnecessary procedures, increased expenses, and patient anxiety.

Conclusions:

  • It is premature to recommend mass colorectal cancer screening for asymptomatic, average-risk individuals.
  • Further research is needed to identify genetic markers and develop targeted screening for high-risk populations.
  • Increased primary prevention efforts (nutrition, exercise) and shared decision-making for screening in patients over 50 are advised.