Colonoscopy is an essential method for diagnosing and treating colorectal cancer, relying on effective bowel preparation to thoroughly examine the large intestinal mucosa. Traditional education involves printed instructions and verbal explanations but does not guarantee clear patient understanding. Poor bowel preparation can obscure mucosal visibility, delaying cancer diagnosis and treatment. A mobile medical model using Android devices for bowel preparation education was tested in a single-blind, randomized trial. This trial enrolled outpatients undergoing colonoscopy at the Endoscopy Center for Diagnostic and Treatment between 27 October 2021 and 31 December 2022. This study introduced the ColonClean app alongside traditional methods. After examination, endoscopists rated the preparation quality using the Aronchick scale. A data analysis was conducted using SPSS 25.0 to determine if there was a significant improvement in bowel preparation quality between the control group (traditional method) and the experimental group (traditional method plus the ColonClean app). Forty patients were recruited in each group. In the experimental group, all ratings were “fair”, with 75% receiving an “excellent” or “good” rating, showing statistical significance (p = 0.016). The ColonClean app improves bowel preparation quality more effectively than traditional care instructions.

Background: Colonoscopy is the standard diagnostic method for colorectal cancer. Patients usually receive written and verbal instructions for bowel preparation (BP) before the procedure. Failure to understand the importance of BP can lead to inadequate BP in 25%-30% of patients. The quality of BP impacts the success of colonoscopy in diagnostic yield and adenoma detection. We developed the “ColonClean” mobile health (mHealth) app for Android devices. It incorporates visual representations of dietary guidelines, steps for using bowel cleansing agents, and observations of the last bowel movement. We used the Technology Acceptance Model to investigate whether the use of the ColonClean mHealth app can improve users’ attitudes and behaviors toward BP. Objective: This study aims to validate the effectiveness of the ColonClean app in enhancing user behavior and improving BP, providing safe and cost-effective outpatient colonoscopy guidance. Methods: This study uses a structured questionnaire to assess perceived usefulness, perceived ease of use, and users’ attitudes and behaviors toward BP regarding the ColonClean mHealth app. A total of 40 outpatients who were physically and mentally healthy and proficient in Chinese were randomly chosen for this study. The data were analyzed using SPSS 25.0, and we used Pearson product-moment correlation and simple regression analysis to predict the perception of ColonClean. Results: The results showed that 75% (30/40) of participants achieved an “excellent” or “good” level of BP according to the Aronchick Bowel Preparation Scale. Perceived usefulness and perceived ease of use of the ColonClean mHealth app were positively correlated with users’ attitudes and behaviors (P<.05). Conclusions: The ColonClean mHealth app serves as an educational reference and enhances the effectiveness of BP. Users expressed their willingness to use the app again in the future and recommend it to family and friends, highlighting its effectiveness as an educational guide for BP.

Colonoscopy, essential for diagnosing and treating colorectal cancer, relies on effective bowel preparation to inspect the colonic mucosa fully. Traditional education methods include printed instructions and verbal explanations, but these may not ensure clear patient understanding. Poor bowel preparation can obscure mucosal visibility, delaying cancer diagnosis and treatment. Using the outpatient’s Android mobile device, the mobile health care model is provided as a nursing guide to assist in bowel preparation for colonoscopy. This single-blinded, randomized trial en-rolled patients for colonoscopy at a Northern Taiwan gastroenterology center. Eligible patients were physically and mentally healthy and could communicate in Chinese. The study tested the ColonClean app during bowel preparation. After the procedure, endoscopists rated the prepara-tion quality using the Aronchick Scale. Data analysis with SPSS software (version 25.0) evaluated if the app significantly improved bowel preparation compared to those who did not use it. Forty patients were recruited for both the control (conventional method) and experimental (conven-tional method plus ColonClean app) groups. In the experimental group, endoscopists assessed bowel preparation quality; all achieved at least "Fair," with 75% receiving "Excellent" or "Good" ratings. The ColonClean App enhanced bowel preparation quality more effectively than tradi-tional nursing guidance.

BACKGROUND Colonoscopy is the standard diagnostic method for colorectal cancer. Patients usually receive written and verbal instructions for bowel preparation (BP) before the procedure. Failure to understand the importance of BP can lead to inadequate levels of over 25% to 30%. Quality of BP impacts the success of colonoscopy in diagnostic yield and adenoma detection. OBJECTIVE we developed the "ColonClean" mobile health (mHealth) application (app) for Android devices. It incorporates visual representations of dietary guidelines, steps for using bowel cleansing agents, and observations of the last bowel movement. METHODS We used the technology acceptance model (TAM) to investigate whether using the ColonClean mHealth app can enhance users' attitudes and behaviors towards BP. The study is aimed to investigate the correlation among perceived usefulness, perceived ease of use, attitude toward usage, and actual usage behavior. Forty outpatients who were physically and mentally healthy and proficient in Chinese were randomly chosen for this study. The data was analyzed using SPSS 25.0, with the utilization of Pearson Product-Moment Correlation and Simple Regression Analysis to predict the perception of ColonClean. RESULTS The results showed that 75% achieved an "excellent" or "good" level of BP according to the Aronchick Bowel Preparation Scale (ABPS). Perceived usefulness and perceived ease of use of the ColonClean mHealth app were positively correlated with users' attitudes and behaviors. CONCLUSIONS ColonClean mHealth app serves as an educational reference and enhances the effectiveness of BP. Users expressed their willingness to use the app again in the future and recommend it to family and friends, highlighting its effectiveness as an educational guide for BP. CLINICALTRIAL The study was approved by Taipei Veterans General Hospital Institutional Review Board (No.2021-10-007AC)