Effect of the Automatic Surveillance System on Surveillance Rate of Colorectal Postpolypectomy Patients

The adherence of doctors to published colorectal post-polypectomy surveillance guidelines varies greatly, and patient follow-up is critical but time-consuming. Previous studies we developed an automatic surveillance (AS) system to accurately identify post-polypectomy patients, assign surveillance intervals for different risks of patients and proactively follow up with patients in time. In this study, we proposed a prospective study about the effect of the automatic surveillance system on surveillance rate of colorectal postpolypectomy patients. The enrolled patients were divided into group A with intelligent surveillance system reminding though telephone and message, group B with intelligent surveillance system reminding though message, group C with manual reminder, and group D with natural state. The surveillance among the four groups were compared.

Inclusion criteria

• Male or female aged 18 years or older who undergo colonoscopy.

Exclusion criteria

• 1)No pathological result.
• 2) No or invalid contact information.
• 3) The surveillance interval cannot be determined according to the surveillance guidelines, including poor bowel preparation, colorectal cancer or suspicious malignance, surgery or colorectal ESD history, those who fail to complete colonoscopy due to unbearable, pathological indications of not polyps, hamartoma or lymphoma polyps, history of ulcerative colitis, and so on.
• 4) Has participated in other clinical trials, signed the informed consent form and is in the surveillance period of other clinical trials.
• 5) Have drug or alcohol abuse or psychological disorder in the past five years.
• 6）Pregnancy.
• 7）Not suitable for recruitment after investigator evaluation because of other high-risk conditions.