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Related Experiment Videos

Massive screening for colorectal cancer. A single institution's public commitment.

N J Petrelli1, M Palmer, A Michalek

  • 1Department of Surgical Oncology, Roswell Park Memorial Institute, Buffalo, NY 14263.

Archives of Surgery (Chicago, Ill. : 1960)
|August 1, 1990
PubMed
Summary

Large-scale colorectal cancer screening programs demonstrated effectiveness in detecting cancers and polyps. Most detected carcinomas showed no lymph node metastasis, highlighting early detection benefits.

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Area of Science:

  • Oncology
  • Gastroenterology
  • Public Health

Background:

  • Colorectal cancer and adenomatous polyps pose significant health risks.
  • Early detection is crucial for improving patient outcomes and survival rates.
  • Mass screening programs are essential for identifying these conditions in asymptomatic populations.

Purpose of the Study:

  • To evaluate the reproducibility and effectiveness of large-scale colorectal cancer screening programs.
  • To assess the yield of colorectal cancer and adenomatous polyp detection through stool occult blood testing.
  • To analyze the incidence of lymph node metastasis in detected colorectal cancers.

Main Methods:

  • Collaborative effort involving multiple departments at Roswell Park Memorial Institute.

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  • Implementation of three large-scale screening programs over several years (1982, 1984, 1987).
  • Utilized stool occult blood tests for initial screening of participants.

    • Main Results:

    • Screening programs demonstrated reproducible results across multiple years.
    • Positive stool occult blood tests led to the discovery of colorectal cancer and adenomatous polyps in 19% (1982), 24% (1984), and 21% (1987) of screenees.
    • The majority of detected colorectal carcinomas showed no lymph node metastases, indicating early-stage diagnosis.

    Conclusions:

    • Large-scale screening programs are effective and reproducible for colorectal cancer and adenomatous polyp detection.
    • Stool occult blood testing is a valuable tool in identifying individuals with colorectal neoplasms.
    • Early detection through screening significantly reduces the likelihood of lymph node metastasis in colorectal cancer patients.