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Related Experiment Videos

Colonoscopy: evaluating indications and diagnostic yield.

M A Al-Shamali1, M Kalaoui, F Hasan

  • 1Faculty of Medicine, Kuwait University, and Department of Medicine, Al-Amiri Hospital, Ministry of Health, Kuwait.

Annals of Saudi Medicine
|January 31, 2007
PubMed
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Colonoscopy is valuable for diagnosing lower gastrointestinal bleeding, diarrhea, and polyps. However, it has a low yield for abdominal pain and surveillance, suggesting improved patient selection is needed for efficient resource use.

Area of Science:

  • Gastroenterology
  • Colorectal Surgery

Background:

  • Colonoscopy is a standard diagnostic tool for colonic diseases.
  • The debate between open-access and restricted-access colonoscopy continues.
  • This study evaluates colonoscopy yield and pathology patterns in a specific community.

Purpose of the Study:

  • To determine the diagnostic yield of major indications for colonoscopy.
  • To analyze the pattern of colon pathology in the community.
  • To assess the effectiveness of colonoscopy based on presenting symptoms.

Main Methods:

  • Retrospective analysis of 3000 colonoscopies over five years.
  • Patient demographics recorded, including age and sex.
  • Complete cecal examination achieved in 95% of cases.

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Main Results:

  • Pathological findings were present in 21% of patients.
  • High yield for lower gastrointestinal bleeding (47%), diarrhea (35%), anemia (30%), mass lesions (53%), and polyps (70%).
  • Low yield for abdominal pain (7%) and surveillance (17%). Inflammatory bowel disease (IBD) diagnosed in 220, carcinoma in 64, and polyps in 139 patients.

Conclusions:

  • Colonoscopy is highly effective for specific indications like bleeding, diarrhea, and suspected lesions.
  • Patient selection based on symptoms can optimize resource allocation.
  • Increasing frequency of inflammatory bowel disease noted in the population.