A randomized controlled trial of an educational video to improve quality of bowel preparation for colonoscopy

摘要

Background High-quality bowel preparation is necessary for colonoscopy. A few studies have been conducted to investigate improvement in bowel preparation quality through patient education. However, the effect of patient education on bowel preparation has not been well studied. Methods A randomized and prospective study was conducted. All patients received regular instruction for bowel preparation during a pre-colonoscopy visit. Those scheduled for colonoscopy were randomly assigned to view an educational video instruction (video group) on the day before the colonoscopy, or to a non-video (control) group. Qualities of bowel preparation using the Ottawa Bowel Preparation Quality scale (Ottawa score) were compared between the video and non-video groups. In addition, factors associated with poor bowel preparation were investigated. Result A total of 502 patients were randomized, 250 to the video group and 252 to the non-video group. The video group exhibited better bowel preparation (mean Ottawa total score: 3.03?±?1.9) than the non-video group (4.21?±?1.9; P Conclusion The addition of an educational video could improve the quality of bowel preparation in comparison with standard preparation method. Trial registration Clinical Research Information Service KCT0001836 . The date of registration: March, 08th, 2016, Retrospectively registered.