Thorough Flushing Strategy During Colonoscopy Examination

Completed

• Conditions: Colonoscopy
• Interventions: Procedure: thorough flushing

• Registration Number: NCT06117553
• Lead Sponsor: Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine

Brief Summary

The investigators plan to adopt a thorough flushing strategy when withdrawing the endoscope, and have zero tolerance for the liquid and foam in the intestinal lumen. Observe and compare the impact of this strategy with traditional limited degree suction methods on the results of colonoscopy. The research group and the control group respectively adopted a thorough flushing strategy and a limited flushing strategy, and compared the total time of colonoscopy examination, the time of withdrawal, the detection rate of polyps, the detection rate of small polyps, and the amount of flushing fluid between the two groups. Analyze the value of thorough flushing strategy for the efficiency and quality of colonoscopy examination.

Detailed Description

Most physicians do not adopt a strategy of complete suction of fluid from the intestinal lumen during colonoscopy. There are both concerns about the time required for colonoscopy and the possibility of inability to thorough cleannig up. Some endoscopists believe that the visual field for partial cleaning of fecal water is acceptable and does not affect observation. This study aims to make an observation and comparison based on the existing problems mentioned above. With the help of direct water injection system, the investigators plan to adopt a thorough flushing strategy when withdrawing the endoscope, and have zero tolerance for the liquid and foam in the intestinal lumen. Observe and compare the impact of this strategy with traditional limited degree suction methods on the results of colonoscopy. The research group and the control group respectively adopted a thorough flushing strategy and a limited flushing strategy, and compared the total time of colonoscopy examination, the time of withdrawal, the detection rate of polyps, the detection rate of small polyps, and the amount of flushing fluid between the two groups. Analyze the value of thorough flushing strategy for the efficiency and quality of colonoscopy examination.

Study Timeline

• Study Start: 2023-08-01
• Study First Submitted: 2023-10-26
• Study First Submitted QC: 2023-11-03
• Study First Posted: 2023-11-07
• Primary Completion: 2023-12-31
• Study Completion: 2024-01-31
• Status Verified: 2024-02
• Last Update Submitted: 2024-02-10
• Last Update Posted: 2024-02-13

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 160

Inclusion Criteria

• People without contraindications for colonoscopy

Exclusion Criteria

• Patients diagnosed with colon polyps

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
thorough	thorough flushing	Thorough flushing strategy

Primary Outcome Measures

Name	Time	Method
time of examination	1week	the time from insertion to exit the anus
time of insertion	1week	the time from insertion to arriving at cecum
time of withdrawl	1week	the time from cecum to anus
location of polyps	1week	the location of polyps found
shape of polyps	1week	the shape of polyps found, classified into lateral, senssile and pediculated three types
number of polyps	1week	the number of polyps found

Secondary Outcome Measures

Name	Time	Method
Boston score	1week	the Boston score of bowel preparation (from 0-9)
volume of water	1week	volume of water used for flushing

Trial Locations

Locations (1)

Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine; 🇨🇳 Shanghai, China