The Effect of Video-Based Education on Colonoscopy Preparation
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Video Education.
- Who it may be relevant to
- Registry conditions: Bowel Preparation Quality, Colonoscopy, Patient Education. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Evaluation of the Effect of Video-Based Education on Bowel Preparation Before Colonoscopy
Overview
Colonoscopy is a routine procedure for evaluating gastrointestinal symptoms, detecting colorectal cancer, and removing polyps. Its effectiveness depends on patient compliance with bowel preparation instructions. However, inadequate bowel preparation occurs in 20-25% of colonoscopies, often due to non-adherence, medical conditions, or long waiting times. Poor preparation can reduce examination quality, prevent detection of precancerous lesions, and increase healthcare costs. Video-based education has been shown to be more effective than written or verbal instructions in improving bowel preparation. This study aims to evaluate the effect of video-based education on colonoscopy bowel preparation and contribute evidence to optimize patient compliance.
Detailed description
Colonoscopy is a standard procedure performed for the evaluation of gastrointestinal symptoms, colorectal cancer screening, polyp detection, and polyp removal. Colorectal cancer (CRC) is the second leading cause of cancer-related deaths in the United States , and in Türkiye, 21,718 new cases were reported in 2022. These statistics underscore the importance of colonoscopy as a preventive and diagnostic tool.
When conducted properly, colonoscopy is safe and well-tolerated, allowing visualization of the entire colon and distal terminal ileum. The procedure's optimal effectiveness relies heavily on patient compliance with bowel preparation instructions. Unfortunately, inadequate bowel preparation occurs in approximately 20-25% of colonoscopies, often due to non-adherence, medical conditions affecting bowel cleansing, or prolonged waiting times for the procedure.
While interventions addressing medical conditions or waiting times may not always be feasible, non-compliance with preparation instructions represents a modifiable, patient-related factor. Effective bowel preparation requires adherence to dietary recommendations and the use of prescribed laxatives. The quality of preparation impacts examination adequacy, procedure duration, cancellation rates, and the need for repeat colonoscopies. Inadequate preparation can hinder thorough evaluation, prevent detection of precancerous lesions such as polyps, and increase healthcare costs.
Emerging evidence suggests that video-based educational interventions are more effective than traditional written or verbal instructions, phone calls, social media applications, or messaging services in improving patient compliance and bowel preparation quality.
This study aims to assess the effect of video-based education on bowel preparation before colonoscopy. By evaluating its impact on preparation quality and patient adherence, the study seeks to provide evidence for implementing more effective educational strategies in colonoscopy units, thereby optimizing clinical outcomes and resource utilization.
Interventions
- Behavioral Video Education
Participants receive routine written and verbal instructions about colonoscopy preparation, including dietary instructions and use of prescribed laxatives. This represents the standard care provided at the study site.
Primary outcome measures
- Quality of Bowel Preparation [Time frame: Day of Colonoscopy]
Eligibility criteria
Inclusion criteria
- Voluntary participation in the study.
- Outpatient follow-up.
- No prior history of colonoscopy.
- Participant or a household member (spouse, child, parent, sibling) owns and can use a smartphone application.
Exclusion criteria
- History of major abdominal surgery.
- Suspected obstructive lesion in the gastrointestinal tract on cross-sectional imaging.
- Impaired swallowing reflex.
- Mental disorder.
- Communication difficulties (speech, perception, comprehension problems).
- Congestive heart failure or kidney failure.
- Pregnancy or breastfeeding.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Health services research
Study locations
Turkey (Türkiye) · 1 center
- Eskisehir Osmangazi University — Eskişehir
Publications
- Walker TB, Hengehold TA, Garza K, Rogers BD, Early D. An Interactive Video Educational Tool Does Not Improve the Quality of Bowel Preparation for Colonoscopy: A Randomized Controlled Study. Dig Dis Sci. 2022 Jun;67(6):2347-2357. doi: 10.1007/s10620-021-07215-8. Epub 2021 Aug 25. PMID 34435269
- Chan WK, Saravanan A, Manikam J, Goh KL, Mahadeva S. Appointment waiting times and education level influence the quality of bowel preparation in adult patients undergoing colonoscopy. BMC Gastroenterol. 2011 Jul 28;11:86. doi: 10.1186/1471-230X-11-86. PMID 21798022
Identifiers
NCT: NCT07229066 · ESOGU-OZGENEL-2025-COLONOSCOPY