Instant Messaging Program (Wechat) Improve the Quality of Bowel Preparation

Study Overview
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Brief Summary
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Colonoscopy is the gold standard in the diagnosis of colorectal disease. The success of colonoscopy depends on high-quality bowel preparation by patients. Inadequate bowel cleansing reduces the cecal intubation rate, and the polyp detection rate (PDR). It also increases costs, mostly due to repeated procedures. The quality of bowel cleansing has remained suboptimal even though numerous different products and regimens have been tested and compared in no fewer than six meta-analyses. Therefore, a completely different approach to improve bowel cleansing is welcome. Here the investigators assume that instant messaging program (Wechat) delivery the detail and FAQ (Frequently Asked Questions) of bowel preparation instructions would improve the quality of the bowel preparation. The Wechat program has some advantages, 1. Wechat supports over 400 million users, nearly half of the mobile subscribers population in China; 2. Wechat provided a real time communications including voice messages, pictures and text exchange timely; 3.Compare with telephone, Wechat is economical of both time and money; 4. Compare with bowel preparation instructional software and litera or cartoon educational booklet, Wechat is more interactive and responsive.

Official Title
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Communication Through Instant Messaging Program for the Improvement of Bowel Preparation: a Two Centers Study

Conditions
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Bowel Preparation

Intervention / Treatment
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* Other: IMP interactive education


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: age 18-80 PEG as purgatives; using we-chat software by patients or their relatives outpatients Exclusion Criteria: history of colorectal surgery known severe colonic stricture or obstructing tumor known or suspected bowel obstruction or perforation pregnant or lactating women patients who cannot give informed consent

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Screening
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: IMP education<br>patients in this group are educated about bowel preparation by instant messaging program and meanwhile a booklet was also sent to them. | Other: IMP interactive education<br>* The detail and FAQ (Frequently Asked Questions) of bowel preparation instructions is delivered by Wechat.<br>* Other names: Wechat education;|
| No Intervention: normal education<br>patients in this group are educated about bowel preparation on the day of reservation by nurse for about 15 minutes and meanwhile a booklet was also sent to them. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Adequate bowel preparation quality at the time of colonoscopy defined by Ottawa score<6 | Ottawa score：A)cleanliness of each part of the colon: 0=excellent 1=good 2=fair 3=poor 4=inadequate B)fluid in whole colon: small=0 moderate=1 large=2 The bowel preparation was considered inadequate if (1) inadequate visualization on colonoscopy defined by Ottawa score≥6; (2) the colonoscopy was cancelled because of poor bowel preparation; (3) incompleted colonoscopy because of inadequate bowel preparation (the Ottawa score was rated as 14 when patients with failed colonoscopy because of inadequate bowel preparation). | up to 5 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Polyp detection rate | The proportion of participants with at least one polyp in each group | up to 5 months | 
| Compliance rate to instruction | The proportion of participants compliance to the instructions of diet and bowel preparation in each group | up to 5 months | 
| Willingness undergo a repeated bowel preparation | The number of participants have a willingness to undergo a repeated bowel preparation if needed | up to 5 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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bowel preparation, instant messaging program