结肠镜检查是一种镇静程序，传统上在插入阶段使用注气方式进行。近年来，有报告指在结肠镜插入阶段使用注水方法（例如注水或水交换技术）可提高完成非镇静结肠镜检查的患者比例、减轻患者恢复时间负担、减少结肠镜检查期间及之后的腹部不适
适应症：Colorectal Cancer Screening
入组条件
纳入标准
- Consecutive asymptomatic patients suitable for CRC screening by FS
- Age 50 - 70 years
- Written informed consent available
排除标准
- Contraindications for endoscopy due to comorbidities
- Unable to provide written informed consent
- Personal history of polyposis syndrome, personal history of CRC, personal history of inflammatory bowel disease
- Coagulopathy (INR\>1.5) or thrombocytopenia (platelets \<50,000)
- Pregnant patients
入组条件维持 ClinicalTrials.gov 原始英文登记资料，实际入组资格以研究团队的正式评估与受试者知情同意书为准。资料来源：ClinicalTrials.gov，每两周自动更新，最后同步：2026年10月8日。