Application of colonoscopy in monitoring recurrence of colorectal polyps after resection
Objective:To investigate the application of colonoscopy in monitoring the recurrence of colorectal polyps after resection.Methods:112 patients who underwent colorectal polyp resection in our hospital from October 2021 to June 2023 were selected as the study objects.Postoperative follow-up was 5 years,and colonoscopy and CT colon imaging were reviewed within 1 year.Pathological examination was used as the"gold standard"to analyze the recurrence of polyps in all patients and compare the accuracy of colonoscopy and CT in monitoring the recurrence of colorectal polyps after resection.To evaluate the consistency between the results of postoperative recurrence monitored by colonoscopy and CT and the results of gold standard.Logistic regression model was used to analyze the risk factors of recurrence after colorectal polyp resection.Results:The recurrence rate within 5 years was 73.21%(82/112).The median time to recurrence was 1.4 years,and the results of the recurrence rate study in different time periods after surgery showed that:The recurrence rate was 35.71%(40/112)in 1 year,increased to 56.25%(63/112)in 2 years,66.96%(75/112)in 3 years,further increased to 71.43%(80/112)in 4 years,and basically stabilized at 73.21%(82/112)in 5 years.Taking pathological examination as the"gold standard",the recurrence rate of polyps detected by colonoscopy within 5 years was 70.53%(79/112)in 112 patients,and the accuracy of colonoscopy for polyp recurrence was 96.34%(79/82).The recurrence rate of polyps detected within CT 5 years was 57.14%(64/112),and the accuracy of CT in detecting polyps recurrence within 5 years was 78.05%(64/82),and the accuracy of colonoscopy in detecting polyps within 5 years was significantly higher than that of CT 5 years,with statistical significance(χ2=4.351,P<0.05).The results of postoperative recurrence monitored by colonoscopy and CT were 0.631 and 0.819,respectively.The recurrence of colorectal polyps was set as the dependent variable,and clinical data of the patient was taken as the independent variable.Logistic multivariate analysis showed that age≥60 years,≥3 intestinal polyps,and diameter of intestinal polyps≥2 cm were all risk factors for recurrence after colorectal polyp resection(P<0.05).Conclusion:Colonoscopy is of great significance in monitoring the recurrence of colorectal polyps after resection,which can provide a strong basis for clinicians to detect and treat recurrent polyps in time,reduce the incidence of colorectal cancer,improve the success rate of treatment and quality of life.