Colorectal polyps and colorectal cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Aged 40 to 75 years (including 40 and 75 years); 2) People who plan to undergo colonoscopy due to screening (colorectal cancer risk score * total score =4) or clinical diagnostic needs; 3) Sign informed consent voluntarily.
Exclusion criteria
Exclusion criteria: 1) Polypectomy within the last 5 years; 2) Previous history of abdominal and pelvic surgery; 3) Previous history of abdominal and pelvic radiotherapy and chemotherapy; 4) Definite active intestinal polyp digestive bleeding; 5) Existing or suspected hereditary colorectal polyposis, inflammatory bowel disease or inflammatory bowel disease; 6) Uncontrolled hypertension (untreated systolic blood pressure > 160 mmHg, or diastolic blood pressure > 95mmHg); 7) History of acute stroke, coronary artery disease or vascular disease; 8) Inability to perform intestinal preparation; 9) Other conditions that could not accept digestive endoscopy for intestinal polyps; 10) Participants who have participated in other clinical trials within 1 month; 11) The researcher considers that any other factors are not suitable for inclusion or affect the participant's participation in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| polyp per colonoscopy,PPC;Sensitivity; | — |
Secondary
| Measure | Time frame |
|---|---|
| adenoma detection rate;adenoma per colonoscopy, APC;polyp detection rate, PDR;Accuracy;Specifity;Positive Predictive Value;Negative Predictive Value;Receiver Operating Characteristic (ROC);Area Under the Curve (AUC); | — |
Countries
China
Contacts
Anshan Road NO.154, Tianjin Medical University General Hospital