Boston University Medical Center, Boston, MA 02118, USA.
Gastrointest Endosc. 2011 Feb;73(2):307-14. doi: 10.1016/j.gie.2010.10.013. Epub 2010 Dec 18.
The effect of patient education on bowel preparation for colonoscopy has not been well studied. An improvement in patient understanding of the rationale for bowel preparation before colonoscopy might enhance adherence to the prescribed bowel regimen and improve bowel preparation quality.
To measure the effect of a simple educational intervention on the quality of bowel preparation during colonoscopy.
Prospective, single-center, endoscopist-blinded, randomized, controlled trial.
Tertiary-care center.
This study involved outpatients directly referred for screening colonoscopy.
Inclusion of a visual aid depicting both clean and dirty colons in addition to standard written colonoscopy instructions.
The primary outcome was the quality of the bowel preparation according to the Boston Bowel Preparation Scale (BBPS). Secondary outcomes included the need for repeat colonoscopy because of inadequate bowel preparation, insertion and withdrawal time, polyps detected, and patient tolerance of bowel preparation and colonoscopy.
We analyzed 492 patients given a visual aid and 477 controls. The percentage of colonoscopies with a BBPS score≥5 was similar in both groups (91% visual aid vs 89% control, P=.43). The odds ratio for having a BBPS≥5 in the visual aid group was 1.24 (95% CI, 0.83-1.87) compared with controls. Other secondary outcomes were similar between groups.
Single-center study.
A simple card with photographs and text explaining the rationale for bowel preparation did not change the quality of bowel preparation in patients directly referred for screening colonoscopy. Future educational studies may need to include more interactive or intensive methods. (
NCT00643682.).
患者教育对结肠镜检查肠道准备的影响尚未得到充分研究。患者对结肠镜检查前肠道准备原理的理解有所提高，可能会增强对规定肠道方案的依从性，并改善肠道准备质量。
测量简单教育干预对结肠镜检查肠道准备质量的影响。
前瞻性、单中心、内镜医师盲法、随机、对照试验。
三级保健中心。
本研究涉及直接转介行筛查性结肠镜检查的门诊患者。
除了标准的书面结肠镜检查说明外，还包括一个可视化辅助工具，描绘了清洁和肮脏的结肠。
主要结局是根据波士顿肠道准备量表（BBPS）评估的肠道准备质量。次要结局包括因肠道准备不足而需要重复结肠镜检查、插入和撤回时间、发现的息肉以及患者对肠道准备和结肠镜检查的耐受性。
我们分析了 492 例接受可视化辅助工具和 477 例对照组患者。两组中 BBPS 评分≥5 的结肠镜检查比例相似（可视化辅助组 91%，对照组 89%，P=.43）。与对照组相比，可视化辅助组 BBPS≥5 的比值比为 1.24（95%CI，0.83-1.87）。其他次要结局在两组间相似。
单中心研究。
直接转介行筛查性结肠镜检查的患者中，一张带有照片和文字说明肠道准备原理的简单卡片并未改变肠道准备质量。未来的教育研究可能需要包括更具互动性或强化性的方法。（临床试验注册号：NCT00643682。）
