Side Specific Withdrawal Times for Colonoscopy: Impact on Adenoma Detection in the Proximal and Distal Colon
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 500
- 试验地点
- 1
- 主要终点
- Adenoma detection rate in the proximal colon
研究概览
简要总结
Adenoma detection in the main goal of screening colonoscopy. In order to detect adenomas it is mandatory to spend a long enough time investigating the colonic mucosa. A minimum observation time of 6 minutes has been proposed as a quality criterion for screening colonoscopy. However, different locations of the colon (proximal, distal) may require specific observation time periods. The colon can be divided into a proximal (right) and distal (left) part. Until now, it is unclear whether observation time has a significant impact on adenoma detection in both parts of the colon. The aim of this study therefore is to conduct a trial in which side-specific observation times and adenoma detection rates are measured in order to investigate this correlation in particular for the right colon.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 40 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •indication for colonoscopy
- •age ≥ 40 years
排除标准
- •American Society of Anesthesiologists class IV or higher
- •pregnant women
- •indication for colonoscopy: inflammatory bowel disease
- •indication for colonoscopy: polyposis syndrome
- •indication for colonoscopy: emergency colonoscopy e.g. acute bleeding
- •contraindication for polyp resection e.g. patients on warfarin
结局指标
主要结局
Adenoma detection rate in the proximal colon
时间窗: up to 2 weeks (participants will be followed for the duration of hospital stay or outpatient treatment, an expected average of 2 weeks)
After obtaining the histopathological diagnosis of resected polyps (approximately 3 -6 days) it can be determined whether the resected polyp contained adenomatous histology or not.
次要结局
- Polyp detection rate(up to one day)