Abstract:Objective To systematically observe the effect and safety of bowel preparation with compound polyethylene glycol (PEG) electrolyte powder and Linaclotide in bowel preparation for colonoscopy in patients.Methods 75 patients from March 1. 2022 to August 30. 2022 were enrolled as the study subjects. They were randomly divided into observation group, control group A and control group B, 25 patients in each group by the method of random number table. The control group A was prepared with 2 L compound PEG electrolyte powder alone and the control group B with 3 L compound PEG electrolyte powder alone; The patients in the observation group were treated with Linaclotide with 2 L compound PEG electrolyte powder for intestinal preparation. Intestinal cleanliness was assessed using the Boston bowel preparation scale (BBPS), the patients’ satisfaction, the incidence of adverse reactions and the detection rate of polyps were analyzed.Results The intestinal preparation effect of the observation group was better than that of the control group A, and the detection rate of polyps was higher than that of the control A. The satisfaction rate of patients in observation group was higher than that in the control group B, and the overall incidence of adverse reactions was lower than that in the control group B.Conclusion The regimen of Linaclotide combined with 2 L PEG electrolyte powder can improve BBPS, detection rate of polyps and patient satisfaction, reduce the incidence of adverse reactions during bowel preparation, be worthy of clinical application.