Hamzeh Zarei
Faculty of Medicine, Zabol University of Medical Sciences, Zabol, Iran
Abstract
Introduction: One of the most common cancers worldwide is colorectal cancer, which is the most common cancer of the digestive tract. Because colorectal cancer has a long asymptomatic period, it is often treatable if diagnosed during this period. Screening can reduce mortality and morbidity.
Methods: The methods used in this systematic review were based on the Checklist (PRISMA) Guidelines. The searches were conducted by two independent researchers and the aim was to find the relevant studies published from 1/1/2000 to 30/5/2019. Finally, a meta-analysis was performed using STATA14 statistical software.
Results: A total of 2526 patients who underwent Colonoscopy and a total of 4 studies from 3 provinces that met the inclusion criteria were evaluated. According to the random effect model, the total frequency of colorectal tumors in 2526 patients with Who Underwent Colonoscopy was 5% (4%-6% at a 95% confidence interval, I2 = 83.2%).
Conclusion: As in Iran, the methods of screening for colorectal cancer on a routine basis do not exist, and given the economic, cultural and social conditions of Iran, Many of the hidden cases of colorectal malignancies remain unknown until the final stages; of course, invasive medical procedures such as Colonoscopy, in addition to other screening techniques, are very useful for the diagnosis of colorectal polyps and tumors that may be malignant.
Key words: Colorectal, Polyp, Tumor, Colonoscopy