The Recurrence Rate of Colorectal Polyps among Patients with Average Risk of Colorectal Cancer.

BACKGROUND

CRC is going to be an important issue in Middle East countries. Also, the main parts of this cancer develop from benign adenomas.

AIM: To understand the recurrence rate of colorectal polyps among average-risk subjects.

METHOD: In a prospective study, the average-risk patients with colorectal adenoma were enrolled in this study based on inclusion criteria. The patients were consulted annually by an expert gastroenterologist. A control colonoscopy was programmed after three years of follow-up. It was not an obligation to follow our program, and each patient could exit the study at any time. The patient who developed one of the exclusion criteria was also withdrawn from the study by the gastroenterologist of this study.

RESULTS

237 patients were enrolled in this study. Of them, 102 patients completed their 3-year follow-up. Among these participants, 62 (60.8%) were male and 40 (39.2%) were female, with a mean age of 57.05 ± 12.87 years. Additionally, 20 (19.6%) subjects had adenomatous polyps at the end of the study. Patients with recurrent colorectal polyps tend to be raised in large ones with a tubulovillous morphology. The polyps were more commonly located in the sigmoid colon, rectum. Furthermore, high-grade dysplasia was recorded in 5 patients. Tubulovillous polyp had higher chance of recurrence than patients with tubular polyp.

CONCLUSION

We believe the colonoscopy screening needs to be set up in regions previously considered low-risk for CRC. Also, it may be valuable to control colonoscopy for less than three years in patients with dysplasia.