Risk Factors for Inadequate Bowel Preparation in Patients With Chronic Constipation

• Conditions: Constipation

• Registration Number: NCT02842411
• Lead Sponsor: Air Force Military Medical University, China

Brief Summary

Chronic constipation is one of the risk factors of inadequate bowel preparation, which could influence the effect of colonoscopy. The risk factors associated with inadequate bowel preparation in constipated patients remains unclear. Here the investigators investigated the high risk factors which might have influence on bowel preparation quality in a prospective cohort of patients with functional constipation.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2016-06-25
• Study First Submitted QC: 2016-07-20
• Study First Posted: 2016-07-22
• Status Verified: 2016-08
• Study Start: 2016-08
• Last Update Submitted: 2016-10-29
• Last Update Posted: 2016-11-01
• Primary Completion: 2017-01
• Study Completion: 2017-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 200

Inclusion Criteria

• 18-90
• Patients undergoing colonoscopy;
• Patients meeting the criteria of chronic constipation of Rome Ⅳ;

Exclusion Criteria

• history of colorectal surgery;
• known of suspected colonic stricture or obstructing tumour;
• ulcerative colitis;
• Crohn's disease;
• irritable bowel syndrome;
• toxic colitis or megacolon;
• known or suspected bowel obstruction or perforation;
• pregnancy or lactation;
• unable to give informed consent;
• haemodynamically unstable.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
adequate rate of bowel preparation ≥6 with each segment ≥2	6 months	The adequacy of bowel preparation is defined as Boston Bowel Preparation Scale (BBPS), a 4-point scoring system applied to each of 3 broad regions of the colon: the right side, the transverse section, and the left side. They were summed to give the total BBPS score, which ranged from 0 to 9.

Secondary Outcome Measures

Name	Time	Method
polyp detection rate	6 months
withdrawal time	6 months
insertion time	6 months

Trial Locations

Locations (4)

The Second Affiliated Hospital of Xi'an Jiaotong University; 🇨🇳 Xi'an, Shaanxi, China

Xijing Hospital of Digestive Diseases; 🇨🇳 Xi'an, Shaanxi, China

Chinese PLA 451 Hospital; 🇨🇳 Xi'an, Shaanxi, China

Tangdu Hospital; 🇨🇳 Xi'an, Shaanxi, China