Saudi Journal of Gastroenterology
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ORIGINAL ARTICLE
Year : 2019  |  Volume : 25  |  Issue : 1  |  Page : 20-26

Findings during screening colonoscopies in a Middle Eastern cohort


1 Division of Gastroenterology, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia; Division of Gastroenterology, The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada
2 Department of Gastroenterology, King Fahad Medical City, Riyadh, Saudi Arabia
3 Department of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
4 Division of Gastroenterology, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia

Correspondence Address:
Dr. Majid A Almadi
Division of Gastroenterology, King Khalid University Hospital, King Saud University, P.O. Box 2925 (59), Riyadh - 11461

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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sjg.SJG_353_18

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Background/Aims: Colorectal cancer is the most common cancer in males and the third most common cancer in females. We aim to determine the polyp and adenoma prevalence in a cohort of patients who underwent opportunistic screening colonoscopies. Patients and Methods: A retrospective cohort study was conducted using an endoscopic reporting database of individuals seen at three tertiary care hospitals (two public hospitals and one private) in Riyadh, Saudi Arabia. Consecutive patients who were 45 years of age and older and underwent opportunistic screening colonoscopies between November 2016 and October 2017 were included. We excluded those with a history of colon cancer or colonic resection for any reason, inflammatory bowel disease, gastrointestinal bleeding, or anemia. Results: Around 1180 patients were included in the study with a mean age of 58.6 years (SD = 7.3), with males representing 53.6% and an overall cecal intubation rate of 92.4%. Masses were found in 1.6% of the study population (50% in the sigmoid or rectosigmoid, 37.5% in the rectum). The polyp detection rate in colonoscopies was 24.8% and the adenoma detection rate was 16.8%. The histology of removed polyps was tubular adenomas in 56.6%, hyperplastic polyps in 32.7%, tubulovillous adenomas in 8.2%, and villous adenomas in 2.5%. The majority of the polyps were in the sigmoid colon (28.3%) and rectum (22.0%), followed by the ascending colon (11.2%) and cecum (10.3%), then the transverse colon and descending colon (9.4% each), and multiple locations in the remainder. Conclusion: The prevalence of polyps and adenomas in this cohort is less than that reported in the Western populations.


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