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NCT Number: NCT07155603

Visual Aids for Colonoscopy Preparation: A Prospective Study on Patient Understanding and Bowel Cleanliness in Colonoscopy Patients

Effective communication in healthcare is critical for improving patient outcomes, particularly in enhancing health literacy and enabling informed decision-making. Traditional informed consent for colonoscopy often fails to clearly explain the procedure, risks, and preparation requirements, leading to inadequate bowel preparation, longer procedures, and missed lesions. Standard educational materials like videos and written instructions are often impersonal, lack cultural inclusivity, and fail to engage patients effectively. Emerging tools, such as the multilingual, visually enhanced Meine Behandlung video series from Visikon®, aim to improve patient comprehension and adherence. This study seeks to compare the effectiveness of these animated videos against traditional consent methods in enhancing patient understanding and adherence, particularly for complex procedures like colonoscopy, which is crucial for diagnosing and preventing colorectal cancer.

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Key information

Conditions

The Effect of Audio-visual Aids on Bowel Cleanliness Audiovisual Aids

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Cantonal Hospital of Baselland

Liestal, 4410, Switzerland

Location contact

Jörg D Leuppi, M.D, PhD

PRINCIPAL_INVESTIGATOR

Zahra Pasha

CONTACT

[email protected]

0041 61 400 40 40

Zahra Pasha, B.A, M.A., TESOL, iPGCE, MCIL

SUB_INVESTIGATOR

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 18 years or older
  • Scheduled for a routine outpatient colonoscopy procedure
  • Capable of understanding communication in German and willing to participate in the study

Exclusion criteria

  • Patients with cognitive impairments
  • Those unwilling to participate

Treatment and study plan

Animated Video Group 1

Behavioral

The animated video intervention provides a clear and engaging multimedia explanation of the colonoscopy procedure in multiple languages. It includes visual aids to help explain the process, preparation instructions, risks, and expected outcomes, aiming to improve patient comprehension and adherence.

Primary outcomes

  1. Bowel Preperation

    Time frame: 24 months

    The objective of assessing the primary endpoint the patient's bowel cleanliness, will be measured during the routine colonoscopy, using the Boston Bowel Preperation Scale.

    The Boston Bowel Preparation Scale (BBPS) is a validated tool used to assess the cleanliness of the colon during a colonoscopy,

    Each of the three segments of the colon (right, transverse, and left) is assigned a score ranging from 0 to 3, with the following criteria:

    Total Score 0: The entire colon is unprepared, and no mucosa is visible. Total Score 1-3: Poor preparation, significant portions of the mucosa are not visible.

    Total Score 4-6: Fair preparation, with some portions of the mucosa visible but others obscured.

    Total Score 7-9: Good to excellent preparation, with most or all mucosa well visualized.

    Interpretation Scores of 0-3: Generally considered inadequate for proper assessment and diagnosis, likely requiring repeat preparation and examination.

    Scores of 4-6: Indicative of suboptimal preparation

Secondary outcomes

  1. Patient Health Literacy & Communication Satisfaction

    Time frame: 24 months

    The secondary outcome seeks to assess the patient's health literacy and general communication satisfaction. This will be done by assessing their answers to the Health Literacy Questionnaire.

Sponsors and collaborators

Lead sponsor

Prof. Dr. Jörg Leuppi

Other

Registry information

Acronym: VACP

Important dates

Study start
2025
Primary completion
2027
Study completion
2028
First posted
Sep 4, 2025
Registry last updated
Sep 4, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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