Web-Mediated Risk Assessment for Endoscopic Screening of Colorectal Polyps

Randomized Trial Comparing Gastroscopy Following Web-Mediated Risk Assessment With Routine Endoscopy Screening of Colorectal Polyps

Colorectal polyps are risk factors for cancer. Early detection of polyps is critical for colorectal cancer management. However, the diagnosis rate of patients with colorectal polyps is still low. Therefore, we design this study to access whether pre-endoscopic screening risk assessment of genetic and environmental risk factors could improve diagnosis rate of colorectal polyps.

Inclusion Criteria:

1. Age 18-65.
2. Signed informed consent

Exclusion Criteria:

1. Severe back ground disease including malignancy.
2. State after gastric surgery.
3. COPD, CHF, CRF and any disease with respiratory disturbances.
4. Deviation of the nasal septum, lack of venous access at the dorsum of the hand or any other technical problem prevents gastric acid collection or base excess evaluation.