Impact of Reinforced Education by Video on the Quality of Bowel Preparation

Study Overview
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Brief Summary
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High quality bowel preparation is essential for successful colonoscopy. This study aimed to assess the impact of reinforced education by Video on the quality of bowel preparation. This prospective, endoscopist-blinded, randomized, controlled study was conducted. Reinforced education groups received additional education via reminders by video 2 days before colonoscopy. The primary outcome was the quality of the bowel preparation according to the Boston Bowel Preparation Scale (BBPS). The secondary outcomes included polyp detection rate (PDR), adenoma detection rate (ADR), tolerance, and subjective feelings of patients.

Official Title
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Impact of Reinforced Education by Video on the Quality of Bowel Preparation

Conditions
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Bowel Preparation Scale, Adenoma Detection Rate

Intervention / Treatment
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* Other: Video
* Other: Standard preparation instructions


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: outpatients aged 18-80 years referred for routine diagnostic colonoscopy with access to the educational video themselves or through close family members living in the same household were eligible. Exclusion Criteria: pregnancy or breastfeeding allergy to purgatives suspected intestinal obstruction, stricture, or perforation hemodynamic instability impaired swallowing reflex or mental status severely medical status, such as New York Heart Association grade III or grade IV congestive heart failure and severe renal failure illiteracy history of oesophagus、stomach 、duodenum、small intestine or colorectal surgery participation declined.

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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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Video<br>Patients randomized to the intervention arm will be contacted 48-72h before their procedure via telephone using a standardized script and will be provided a link to a website allowing posting of videos for public viewing | Other: Video<br>* Patients randomized to the intervention arm will be contacted 48-72h before their procedure via telephone using a standardized script and will be provided a link to a website allowing posting of videos for public viewing<br>|
| Experimental: Standard preparation instructions<br>The control arm will receive written instruction on preparing for a colonoscopy per standard of care | Other: Standard preparation instructions<br>* The control arm will receive written instruction on preparing for a colonoscopy per standard of care<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Boston Bowel Preparation Scale | The primary end point of the study was adequate bowel prepara- tion quality de ned as a BBPS total score of ≥6 with all segment scores ≥2 | 2 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Polyp detection rate | Secondary end points included polyp detection rate which would be higher in the colonoscopy with satisfactory bowel preparation. | 2 days | 
| Adenoma detection rate | Secondary end points included adenoma detection rate which would be higher in the colonoscopy with satisfactory bowel preparation. | 2 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Polyp detection rate, Adenoma detection rate, Boston Bowel Preparation Scale