Polyp detection rate and pathological features in patients undergoing a comprehensive colonoscopy screening

Area of Science:

• Gastroenterology
• Colorectal Cancer Screening
• Epidemiology

Background:

• Colonic polyps are precursors to colorectal cancer.
• Understanding polyp prevalence and characteristics is crucial for effective screening programs.

Purpose of the Study:

• To determine the prevalence and characteristics of colonic polyps in Iranian patients.
• To calculate the polyp detection rate (PDR) and adenoma detection rate (ADR).

Main Methods:

• A cross-sectional study of 531 patients undergoing colonoscopy.
• Data collected included demographics, colonoscopy findings, and polyp histopathology.

Main Results:

• Overall polyp detection rate (PDR) was 23.5%, with an adenoma detection rate (ADR) of 12.8%.
• Polyps were more frequent in men and in patients over 50.
• The distal colon, particularly the rectosigmoid region, had a higher prevalence of polyps.

Conclusions:

• Colonic polyp prevalence in this Iranian cohort is lower than in Western populations.
• The distal colon is more prone to polyp and cancer development in this population.