Background and Aim We aim to evaluate the effect of smartphone education on the bowel preparation quality of patients undergoing colonoscopy by meta‐analysis. Methods Randomized controlled trials using smartphones to educate patients on bowel preparation for colonoscopy were screened from the PubMed, Web of Science, Cochrane Library, and Embase databases from inception to August 31, 2021. After extracting the data, Review Manager software was used for meta‐analysis. Results A total of 12 randomized controlled trials with 4165 patients were included in the meta‐analysis. There were 2060 patients in the smartphone group, including 1784 patients with adequate bowel preparation, with a rate of 86.6%, and 2105 patients in the control group, including 1614 patients with adequate bowel preparation, with a rate of 76.7%, and pooled risk ratio (RR) was 1.15 (95% confidence interval [CI]: 1.07–1.23, P < 0.01). Eight included studies reported the adenoma detection rate. The adenoma detection rate in the smartphone group was 26.2%, and the rate in the control group was 19.3%, with an RR of 1.29 (95% CI: 1.03–1.62, P < 0.05). Conclusion Using smartphones to educate patients on bowel preparation for colonoscopy improved the quality of bowel preparation and increased the adenoma detection rate.

Aim: Adequate bowel preparation is essential to the quality of colonoscopy. We performed a meta-analysis to determine the efficacy and safety of the addition of lubiprostone to the bowel preparation process prior to colonoscopy. Methods: Online databases, namely, PubMed, MEDLINE and Cochrane Library, were searched for randomized controlled trials that assessed the additive effect of lubiprostone on the quality of colon preparation in patients undergoing colonoscopy. Each included study was evaluated by the Jadad score to assess the quality of the study. The primary outcome was bowel preparation efficacy, defined as the proportion of patients with an excellent or poor preparation. The secondary outcomes included the length of the colonoscopy, polyp detection, and any adverse effects. Results: In total, 5 articles published between 2008 and 2016 fulfilled the selection criteria. The addition of lubiprostone to the bowel cleansing process significantly increased the proportion of patients with an excellent preparation (risk ratio [RR] = 1.68, 95% confidence interval (CI): 1.40–2.02, P < .00001) but did not decrease the procedural time or increase the polyp detection rate (mean difference = -0.52, 95% CI: -3.74–2.69, P = .75; RR = 1.16, 95% CI: 0.96–1.42, P = .13, respectively). There was no significant difference in the proportion of patients with any adverse events. Conclusion: The addition of lubiprostone to the bowel preparation regimen prior to colonoscopy is effective and safe.